Mercedes-Benz 300D 2.5 1990 Owner'S Manual Download Page 117

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Service Literature

Your authorized MERCEDES-BENZ dealer has trained

technicians and original MERCEDES-BENZ parts to ser
vice your vehicle properly. For expert advice and quality

service, see your authorized M ERCEDES-BENZ dealer.

Customers who are interested in ordering service litera

ture for their vehicles are advised to contact

MERCEDES-BENZ distributers in the U.S. or Canada at

the following addresses, respectively

for U.S.A.:

Mercedes-Benz of North America Inc.
One Mercedes Drive

P. O. Box 350

Montvale, New Jersey 07645

Att: Service and Parts Literature
Tel: (201) 5 73-06 00

for Canada:

Mercedes-Benz Canada Inc.
849 Eglinton Ave., East

Toronto, Ont., Canada

M 4 G 2 L 5

Att:  Technical  Publications
Tel: 4  16-4 25-35  50
Telex:  0 65-2 42 32

The above companies will be happy to handle any such

requests from customers.

We consider this to be the best way to obtain accurate

information for your vehicle.

W arning!

To help avoid personal injury, be extrem ely careful

when perform ing any m aintenance work or repairs.

Im proper or incom plete service may dam age the

vehicle or its equipment, which may in turn result in

personal injury.

If you have any question about carrying out

some service, turn to the advice of an authorized

MERCEDES-BENZ dealer.

115

Summary of Contents for 300D 2.5 1990

Page 1: ......

Page 2: ...keep tires at the recommended inflation pressures remove unnecessary loads remove ski racks or roof mounted luggage racks when not in use allow engine to warm up under low load use avoid frequent acceleration and deceleration have all maintenance work performed at regular intervals by an authorized MERCEDES BENZ dealer Fuel consumption is also increased by driving in cold weather in stop and go tr...

Page 3: ...s of service Your MERCEDES BENZ represents the efforts of many skilled engineers and craftsmen To ensure your pleasure of ownership we ask you to make a small investment of your time Please read this manual carefully before putting it aside Please abide by the recommendations contained in this manual They are designed to acquaint you with the oper ation of your MERCEDES BENZ We extend our best wis...

Page 4: ...System Warranty Emission Performance Warranty California Emission Control System Warranty California Only 4 Maintenance The Maintenance Booklet describes all the necessary maintenance work which should be performed at regular intervals Always have the Maintenance Booklet with you when you take the vehicle to your authorized MERCEDES BENZ dealer for service The service advisor will record each serv...

Page 5: ...d in the Owner s Service and Warranty Policy Booklet Operating Your Vehicle Outside the U S A or Canada If you plan to operate your vehicle in foreign countries please be aware that service facilities or replacement parts may not be readily available Certain Mercedes Benz models are available for delivery in Europe under our European Delivery Program For details consult your authorized MERCEDES BE...

Page 6: ...ions herein may vary slightly from the actual equipment of your vehicle If there are any equipment details that are not shown or described in this Owner s Manual your authorized MERCEDES BENZ dealer will be glad to inform you of correct care and operating procedures The Owner s Manual and Maintenance Booklet are important documents and should be kept with the vehicle 6 ...

Page 7: ...Instruments and Controls Starting the Engine Driving Instructions Service and Maintenance Operation Driving Practical Hints I I I Technical Data Fuels Coolants Lubricants etc Consumer Information ...

Page 8: ... moderate vehicle and engine speeds During this period avoid heavy loads full throttle driving and high RPM no more than 2 3 of maximum permissible speed in each gear as indicated on the speedometer Avoid accelerating by kickdown It is not recommended to brake the vehi cle by manually shifting to a lower gear We recommend to select posi tions 3 or 2 only at moderate speeds for hill driving After 1...

Page 9: ...g the Engine Driving Instructions Service and Maintenance Instruments and Controls 10 Instrument Cluster 12 Indicator Lamp Symbols 13 Starting and Turning Off the Engine 14 Driving Instructions 15 MERCEDES BENZ Maintenance System 18 9 ...

Page 10: ...in steering lock positions 1 or 2 is not installed in vehicles equipped with a front passenger airbag 10 15 Rear window defroster switch page 53 16 Switch for folding rear seat head restraints backward page 35 17 Switch for rear window sun shade 18 Air recirculation switch page 20 19 Hazard warning flasher switch 20 Automatic antenna switch page 56 21 Rear passenger compartment lamp switch page 54...

Page 11: ...Ic o O o c 0 3 if c 0 E if c 11 ...

Page 12: ...mperature indicator See page 68 3 Oil pressure gauge bar See page 66 10 Turn signal indicator lamp right green 4 Turn signal indicator lamp left green 11 Knob for clock adjustment 5 Knob for instrument lamps and trip odometer press in and rotate for adjustments Rotate knob to vary intensity of instrument lamps 12 Electric clock Depress knob to reset trip odometer 13 Tachometer 12 ...

Page 13: ...ow except Canada Parking brake engaged See pages 58 64 Brake fluid low Canada only Parking brake engaged See pages 58 64 Front brake pads worn down See page 64 BRAKE a Engine oil level low See page 66 Coolant level low See page 68 Fluid level for windshield and head lamp washer system low See page 68 Exterior lamp failure See page 67 ABS malfunction See page 65 SRS malfunction See page 42 ...

Page 14: ...r Turning off Turn the key in the steering lock to position 0 only when the vehicle has stopped moving The key can only be removed with the selector lever in position P Should the engine continue to operate with the key in steering lock position 0 refer to page 76 If the coolant temperature is very high e g after hard driving on mountain roads do not shut off the engine immediately allow it to run...

Page 15: ... the wheels is felt Keep applying brake for about 10 sec onds while pulling the release handle out before releasing the parking brake completely This practice will keep the parking brake at maximum efficiency It can also result in the brakes overheating thereby significantly reducing their effectiveness It may not be possible to stop the car in sufficient time to avoid an accident All checks and m...

Page 16: ... track grooves in the road and apply brakes cautiously in the rain Tire traction The safe speed on a wet snow covered or icy road is always lower than on a dry road You should pay particular attention to the condition of the road as soon as the prevailing temperatures fall close to the freezing point We recommend M S radial ply tires for the winter season for all four wheels to insure normal balan...

Page 17: ...vehicle under control by means of corrective steering action Road salts and chemicals can adverse ly affect braking efficiency Increased pedal force may become necessary to produce the normal brake effect We therefore recommend depressing the brake pedal repeatedly when traveling on saltstrewn roads at length This can bring road salt impaired braking efficiency back to normal A prerequi site is ho...

Page 18: ...severe operating conditions or heavy use it may be necessary to carry out prescribed maintenance jobs at shorter intervals for example Engine Oil change with filter change every 4000 km 2500 miles Automatic transmission Fluid change without filter change every 24 000 km 15 000 miles Tires Inspect every 12 000 km 7500 miles Air filter Clean or replace element every 24 000 km 15 000 miles Note Sever...

Page 19: ...Mercedes Benz Owner s Manual 300 D 2 5 TURBO ...

Page 20: ...ividual cases an official approval or authorization by governmental or approval agencies should exist MERCEDES BENZ original parts as well as conversion parts and accessories approved by us are available at your MERCEDES BENZ service station where you will receive comprehensive information also on permissible technical modifications and where expert installation will be per formed Printed in Germa...

Page 21: ...ad Restraints Rear 35 Adjusting Telescopic Steering Column 35 Heated Seats 36 Seat Belts and Supplemental Restraint System SRS 37 Steering Lock 47 Exterior Lamp Switch 48 Combination Switch 49 Inside Rear View Mirror 50 Exterior Rear View Mirrors 51 Lighter 52 Sun Visors 52 Lockable Storage Compartment 53 Rear Window Defroster 53 Interior Lamps 54 Sliding Roof with Rear Pop Up Feature 54 Power Win...

Page 22: ...ed This is accomplished with the temperature selector 1 the pushbuttons 2 and the fan control buttons 3 The adjustable air outlets 6 and 8 can be variably opened and closed or moved to direct the flow of air as desired The air flow can be increased or decreased by rotating controls 5 and 7 With the exterior lamps turned on except standing lamps the symbols on all buttons light up Each button shine...

Page 23: ... switch lights up This mode can be selected to prevent annoying odors or dust from entering the car s interior At high outside temperatures the system automatically engages the air recirculation mode thereby increasing the cooling capacity performance The recirculated air mode will be automatically switched off after approximately 30 minutes of operation at outside temperatures above approximately...

Page 24: ...primarily directed to the foot area In the heating mode air will be emitted intermittently from the adjustable air outlets 6 Enough air is supplied to the windshield and to the side windows to keep the glass free of fog in normal weather conditions At low outside temperature fan operation does not start until the engine coolant has warmed up j 3 EC ECONOMY Economical setting The function of this s...

Page 25: ...de warm air is supplied to the wind shield foot area and the outlets 8 Additionally air may be emitted periodically from outlets 6 depending on the interior temperature In the cooling mode cool air is supplied to the windshield foot area and outlets 6 and 8 Note In warm humid climates prolonged use of this setting may create condensation on the outside of the windshield directly above the defroste...

Page 26: ...is directed to the windshield and adjustable air outlets 8 independent of the positions of the temperature selector wheel and fan control buttons 0 Off The air supply and heat to the car interior is shut off While driving use this setting only temporarily ...

Page 27: ...lat key with a red dot fits all vehicle locks Arms disarms the anti theft alarm system We recom mend that you carry the flat key with you and keep it in a safe place so that it is always handy Never leave the flat key in the vehicle Note Only vehicles equipped with the anti theft alarm system have a red dot on the master valet and flat keys Obtaining Replacement Keys Your vehicle is equipped with ...

Page 28: ... From the outside turn key From the inside actuate door lock button 2 Unlocking 3 Locking When the rear door lock buttons are down the rear doors cannot be opened from the outside or the inside unless the door lock buttons are first pulled up The driver s door can be locked only if it is closed and the door latch has properly engaged 26 ...

Page 29: ...plete ly closed It can also be engaged from the front passenger door if the ignition key is removed or the key is inserted in the steering lock without having been turned key in position 0 If the car has been locked from the outside the anti theft alarm if so equipped will come on if a door is opened from the inside Trunk The trunk can remain locked while the central locking system is unlocked e g...

Page 30: ...cking position 3 The windows and the sliding pop up roof begin to close automatically after approxi mately 1 second Warning Never close the windows or sliding pop up roof if there is danger of anyone being harmed by the closing procedure In case of danger the closing procedure can be immediately reversed by turning the key to the unlocking position 2 within 10 seconds The sliding pop up roof will ...

Page 31: ... for 30 seconds and repeat for another 60 seconds The alarm will stay on even if the acti vating element a door for example is immediately closed Note If the radio is removed from its mount ing when the anti theft alarm is armed the radio will automatically be ren dered inoperative This is indicated by a dashed line across the display Do not give the master key to an un authorized person We recomm...

Page 32: ...k reclined Sitting in an excessively reclined position can be dangerous You could slide under the seat belt in a collision If you slide under it the belt would apply force at the abdomen or neck That could cause serious or even fatal injuries The seat back and seat belts provide the best re straint when the wearer is in an upright position and the belts are properly positioned on the body Prior to...

Page 33: ...n also be tilted for ward by hand Note If the car is equipped with power head restraints do not try to operate manually Warning Do not adjust the driver s seat while driving Adjusting the seat while driving could cause the driver to lose control of the vehicle Never ride in a moving vehicle with the seat back reclined Sitting in an excessively reclined position can be dangerous You could slide und...

Page 34: ...ition button Note See page 35 for instructions to adjust telescopic steering column Caution Do not remove head restraints except when mounting seat covers For removal refer to Practical Flints page 96 Whenever restraints have been removed be sure to reinstall them before driving Important Prior to operating the vehicle the driver should adjust the seat height for proper vision as well as fore aft ...

Page 35: ...pressure of the air cushion can be continuously varied between position 0 without pressure and position 4 maximum pressure by changing the pressure regulator 1 setting In addition the cushion height may be changed to five different settings between position A lowest setting and E highest setting by varying the height regulator 2 adjustment If the engine is turned off the last cushion setting is re...

Page 36: ...e as a child restraint system In case of a frontal collision a child can be catapulted forward over the locked arm rest Infants and small children should be seated in a properly secured restraint system that complies with U S Federal Motor Vehicle Safety Standard 213 and Canadian Motor Vehicle Safety Standard 213 1 Arm Rest Rear Bench Seat Pull down the arm rest by its strap The outboard seat belt...

Page 37: ...nually Note For safety reasons always drive with the rear head restraints in the upright position when the rear seats are occupied Adjusting Telescopic Steering Column Turn key in steering lock to position 1 or 2 with the driver s or front passen ger s door open the telescopic steering column can be operated with the key removed or in steering lock position 0 To lengthen or shorten the steering co...

Page 38: ...1 If both indicator lamps are on press in lower part of switch position 2 The heater automatically turns off after approximately 30 minutes of opera tion Notes When in operation the seat heater consumes a large amount of power It is advisable not to use the seat heater longer than necessary The seat heaters may automatically switch off if too many power consum ers are switched on at the same time ...

Page 39: ...arning System With the key in steering lock posi tion 2 an audible warning sounds for a short time if the driver s seat belt is not fastened When someone enters the car front the reminder lamp located below the front interior reading lamp flashes for a short time to remind all occupants to fasten seat belts Fastening 1 Latch plate 2 Buckle 3 Release button Pull belt with latch plate 1 across shoul...

Page 40: ...ng If necessary tighten the lap portion to a snug fit by pulling shoulder portion up Unfastening Push in the red button 3 in the belt buckle 2 Allow the retractor to completely rewind the seat belt by guiding the latch plate 1 Operation The inertia reel stops the belt from unwinding during sudden vehicle stops or when quickly pulling on the belt The emergency tensioning retractor tightens the seat...

Page 41: ...uld affect the correct seat belt position To shorten the belt With the latch plate engaged pull the loose end of the belt To lengthen the belt With the belt unfastened turn the latch plate so that it is a little more than 90 perpendicu lar to the belt then extend the belt Fasten the belt and shorten as stated above To disengage the belt push red button 3 in the buckle If the center seat is not occ...

Page 42: ... restrained in the rear seating positions than in the front seating positions Infants and small children must be seated in an infant or child restraint system which is properly secured by a lap belt or lap belt portion of a lap shoulder belt Children could be endangered in an accident if their child restraints are not properly secured in the vehicle Improperly positioned seat belts do not provide ...

Page 43: ...ned during major frontal impacts within the shaded area shown They tighten the belts in such a way that they fit more snugly against the body restricting its forward move ment as much as possible In cases of less severe frontal impacts roll overs certain side impacts rear collisions or other accidents without major frontal forces the emergency tensioning retractors will not be activated The driver...

Page 44: ...conds after the lamp goes out the system continues to monitor the components and circuitry of the air bag system and will indicate a mal function by coming on again The following system components are monitored or undergo a self check crash sensor airbag ignition circuit driver and front passenger seat belt buckles Initially when the key is turned from steering lock position 0 to positions 1 or 2 ...

Page 45: ...ar the seat belt otherwise it is not possible for the airbag to provide its intended pro tection In cases of less severe frontal im pacts roll overs certain side impacts rear collisions or other accidents without severe frontal forces the airbag will not be activated The driver and other passengers will then be protected by the fastened seat belts Front Passenger Airbag If your vehicle is equipped...

Page 46: ... extends to the date indicated on the label located on the driver side door latch post To provide conti nued reliability after that date it should be inspected by an authori zed MERCEDES BENZ dealer at that time and replaced when necessary Warning It is very important for your safety to be in a proper seating position For maximum protection in the event of a frontal collision always ride in an upr...

Page 47: ...m material bad ges etc over the steering wheel hub or front passenger airbag cover and installation of additional electrical electronic equipment on or near SRS components and wiring Improper work on the system including incorrect installation and removal can lead to pos sible injury through an uncon trolled activation of the SRS In addition through improper work there is the risk of render ing th...

Page 48: ...r child re straint system be sure to carefully read and follow all manufacturer s in structions for installation and use Warning When the child restraint is not in use remove it from the car or secure it with the seat belt to prevent the child restraint from becoming a projectile in the event of an accident Infants and small children should never be held on the lap while the vehicle is in motion D...

Page 49: ...urned clockwise to position 1 Notes The following items can be operated with the key in steering lock posi tion 1 Wiper windshield washer system headlamp cleaning system only in exterior lamp switch positions oo or I D headlamp flasher lighter glove box lamp sliding roof rear window defroster power windows power seats heated seats orthopedic seat backrest telescopic steering column An audible warn...

Page 50: ...e stop with parking and or headlamps on When the vehicle is parked on the street the standing lamps right or left side parking lamps can be turned on making the vehicle more visible to passing vehicles The standing lamps can only be operated with the key in steering lock position 0 or 1 Notes With the key removed and a front door open an audible warning will sound if the vehicle s exterior lamps e...

Page 51: ...degree To signal minor directional changes such as changing lanes on a highway move combination switch to the point of resistance only and hold it there 6 Control for windshield washer system headlamp cleaning system will work only with exterior lamp switch in position io o or I D Canada only Also in position O when the engine is running When the washer system is activ ated the wiper also operates...

Page 52: ...eratures above freezing MB Windshield Washer Concentrate S and water 1 part S to 100 parts water 40 ml S to 1 gallon water For temperatures below freezing MB Windshield Washer Concentrate S and commercially available premixed windshield washer solvent antifreeze 1 part S to 100 parts solvent 40 ml S to 1 gallon solvent Inside Rear View Mirror The mirror can be tilted to the antiglare night positio...

Page 53: ...Driver s side The exterior mirror 2 can be adjusted from inside the vehicle by moving adjusting lever 1 in the desired direction Passenger side The passenger side exterior mirror is convex outwardly curved surface for a wider field of view To adjust the mirror Turn key in steering lock to position 2 The exterior mirror can be adjusted using the switch located in the center console Adjust the mirro...

Page 54: ...n to protect against sun glare If sunlight enters through a side window disengage visor from inner mounting and pivot to the side From this position the visor can also slide forward and backward on its shaft Warning Never touch the heating element or sides of lighter hold at knob only Vanity mirror With the visor engaged in its inner mounting the lamp can be switched on by opening the cover 52 ...

Page 55: ...t of power To keep the battery drain to a minimum turn off the defroster as soon as the window is clear The defroster is automatically turned off after a maximum of 20 min utes of operation Heavy accumulation of snow and ice should be removed before activating the defroster If several power consumers are turned on simultaneously or the battery is only partially charged it is possible that the defr...

Page 56: ...courtesy lamp is switched on and off by the rear door contact switches or by the rocker switch on the instrument panel The reading lamps in the rear passen ger compartment are switched on and off by a switch in each lamp Sliding Roof with Rear Pop Up Feature Turn key in steering lock to position 1 or 2 Activate switch 1 to slide roof open 2 to slide roof closed 3 to raise roof at rear 4 to lower r...

Page 57: ...peration of the rear windows for instance by children is to be prevented slide safety switch 5 to the right symbol be comes visible By using the switch group on the center console with one switch 1 4 per window By using the switch 6 in each rear door panel Operation Press switch in to resistance point to close Esa to open Release switch when window is in desired position Warning When leaving the v...

Page 58: ...he cen ter position the antenna extends automatically to medium height if the antenna switch is engaged in the lower position the antenna will not extend or will retract com pletely The height of the antenna can be adjusted to any intermediate position by actuating the antenna switch If the antenna switch is in the cen ter position the antenna will ex tend to medium height The an tenna can be furt...

Page 59: ...ne Oil Consumption Low Engine Oil Level Warning Lamp Exterior Lamp Failure Indicator Lamp Fuel Reserve Warning Lamp Coolant Temperature Gauge Low Engine Coolant Level Warning Lamp Low Windshield and Headlamp Washer Fluid Level Warning Lamp Outside Temperature Indicator Emission Control Traveling Abroad Winter Driving Snow Chains 58 59 62 64 64 65 66 66 66 68 68 68 69 69 70 70 57 ...

Page 60: ...sed when you drink and drive Please dont t drink and drive or allow a friend to drive when he has been drinking Parking Brake To engage depress parking brake pedal When the key is in steering lock position 2 the brake warning lamp in the instrument cluster should come on brightly function check for lamp To release the parking brake pull handle on instrument panel The brake warning lamp in the inst...

Page 61: ...otherwise start creeping when the selector lever is in drive or reverse position Test the brakes shortly after driving off Perform this procedure only when the road is clear of other traffic Warm up the engine smoothly Do not place full load on the engine until the operating temperature has been reached When starting off on a slippery surface do not allow one driving wheel to spin for an extended ...

Page 62: ...ly with the car stopped Neutral No power is transmitted from the engine to the rear axle When the brakes are released the vehicle can be moved freely pushed or towed Do not engage N while driving except to coast when the vehicle is in danger of skidding e g on icy roads see page 17 D The transmission automatically upshifts to 4th gear Position D provides optimum driving charact eristics under all ...

Page 63: ...ke This avoids unnecessary transmission heat build up Warning Getting out of your car with the selector lever not fully engaged in position P is dangerous When parked on a steep incline posi tion P alone may not prevent your vehicle from rolling possibly hitting people or objects Always set the parking brake in addition to shifting to position P To prevent the engine from laboring at low RPM do no...

Page 64: ...o be increased or decreased slightly e g to adapt to the traffic flow hold lever in position 1 or 2 until the desired speed is reached or briefly tip the control lever in the appropriate direction for increases or decreases in 1 km h 0 6 mph increments When the lever is released the newly set speed remains 3 Canceling To cancel the cruise control briefly push lever to position 3 When you step on t...

Page 65: ...traffic and weather conditions make it advisable to travel at a steady speed The use of cruise control can be dangerous on winding roads or in heavy traffic because conditions do not allow safe driving at a steady speed The use of cruise control can be dangerous on slippery roads Rapid changes in tire adhesion can result in wheel spin and loss of control The Resume function should only be operated...

Page 66: ...servoir key in steering lock posi tion 2 and parking brake released When the minimum mark on the reservoir is reached have the brake system checked for brake pad thick ness and leaks To test the brake warning lamp turn key in steering lock to position 2 The brake warning lamp comes on and should go out when the engine is running Warning Driving with the brake warning lamp on can result in an acci ...

Page 67: ... charging voltage falls below 10 volts the warning lamp comes on and the ABS is switched off When the voltage is above this value again the warning lamp should go out and the ABS will be operational If the ABS warning lamp does not go out or comes on while driving it in dicates that the ABS has detected a malfunction and has switched off In this case the brake system functions in the usual manner ...

Page 68: ...Engine Oil Consumption Engine oil consumption can only be determined after a certain mileage has been covered During the break in period higher oil consumption may be noticed and is normal Frequent driving at high speeds results in increased consumption Low Engine Oil Level Warning Lamp The warning lamp comes on with the key in steering lock position 2 and should go out when the engine is running ...

Page 69: ...turned to steering lock position 2 and should go out after the engine is running If the warning lamp stays on after the engine starts or comes on while driving it indicates that the fuel level is down to the reserve quantity 9 0 I 2 4 US gal Coolant Temperature Gauge If the antifreeze mixture is effective to 30 C 22 F the boiling point of the coolant in the pressurized cooling system of your vehic...

Page 70: ...premixed wind shield washer solvent antifreeze depending on ambient temperature at the next opportunity The reservoir for the windshield and headlamp washer systems is located in the engine compartment see page 116 Outside Temperature Indicator The temperature sensor is located in the front bumper area Due to its location the sensor can be affected by road or engine heat during idling or slow driv...

Page 71: ...Maintenance Booklet Warning Inhalation of exhaust gas is hazardous to your health All exhaust gas contains carbon monoxide and inhaling it can cause unconsciousness and lead to death Do not run the engine in confined areas such as a garage which are not properly ventilated If you think that exhaust gas fumes are entering the vehicle while driving have the cause determined and corrected immediately...

Page 72: ...it Engine block heater The engine is equipped with a block heater The electrical cable may be installed free of charge at your authorized MERCEDES BENZ dealer by us ing the coupon in the Owner s Service and Warranty Policy booklet The coupon is valid for 12 months from date of vehicle delivery After installation the electrical plug is located at the side of the radiator behind the grill and can be...

Page 73: ...ease of Fuel Bleeding of Fuel System 76 Filler Flap 88 First Aid Kid 77 Towing of Vehicle 89 Stowing Things in the Vehicle 77 Jump Starting 89 Trunk Lamp 77 Cleaning and Care of the Storage Compartment Below Vehicle 91 Trunk Floor 77 Rear Seat Cushion 95 Vehicle Tools 77 Ashtrays 95 Spare Wheel 78 Front Head Restraints 96 Vehicle Jack 78 Spare Parts Service 96 Wheels 79 Replacing Wiper Blades 97 C...

Page 74: ...ia tor grill and open hood do not pull up on handle Caution To avoid damage to the windshield wiper or hood open the hood only with wiper in the parked position To close Lower hood and let it drop into the lock from a height of approx 30 cm 1 ft Do not press down on hood with hands Warning To help prevent personal injury stay clear of moving parts when the hood is open and the engine is running Be...

Page 75: ...y signs of steam or coolant leaking from the cooling system Do not remove pressure cap on coolant reservoir if engine temperature is above 90 C 194 F Allow engine to cool down before removing cap The coolant reservoir contains hot water anticorrosion anti freeze mixture and is under pressure Using a rag turn cap to first notch to relieve excess pres sure If opened immediately hot scalding fluid an...

Page 76: ...nd stop the engine and wait a few minutes for the oil to drain back to the oil pan Wipe the dipstick clean before checking laJ Add oil if needed only to the upper mark max Do not overfill the engine For viscosity and capacity see Fuels Coolants Lubricants etc page 104 For low engine oil level warning lamp see page 66 1 Oil dipstick 2 Oil filler cap 74 ...

Page 77: ...ven the slightest impurity may cause operational troubles The fluid level in the transmission is dependent upon its temperature The maximum and minimum oil level marks on the dipstick are applicable references only if the transmission fluid has reached its normal operating temperature of 80 C 176 F Important If the transmission fluid cools down to 20 30 C 68 86 F which is the normal shop temperatu...

Page 78: ...ystem The fuel system is a self bleeding system Turn the key in steering lock fully to the right and crank engine for up to one minute maximum Push accelerator pedal to the floor while cranking engine Only release key after engine fires evenly Warning To help prevent personal injury stay clear of moving parts when the hood is open and the engine is running Be sure the hood is properly closed befor...

Page 79: ...keeping the trunk lid open for a longer period of time the trunk lamp can be switched off by pulling out the plunger in the switch arrow When the trunk lid is closed the switch will reset and turn on the lamp the next time the lid is opened Note On vehicles equipped with anti theft alarm system it is not possible to pull out the plunger in the switch to turn off the trunk lamp Storage Compartment ...

Page 80: ...ck is designed exclusively for jacking up the vehicle at the jack tubes built into either side of the vehicle Use the jack only to lift the vehicle during a wheel change Never get beneath the ve hicle while it is supported by the jack Keep hands and feet away from the area under the lifted ve hicle Always firmly set parking brake and block wheels before raising vehicle with jack Do not disengage p...

Page 81: ...ould be replaced in sets Furthermore in the event of tire re placement the spare wheel if pos sible should be used on the rear axle Rims and tires must be of the same size For dimensions see Technical Data We recommend that you break in new tires for approx 100 km 60 miles at moderate speed It is imperative that the wheel mounting bolts be retighten ed after approx 100 500 km 60 300 miles On new v...

Page 82: ...ove protective cap from the jack support tube opening by inserting a screwdriver and prying it out The tube openings are located directly behind the front wheel housings and in front of the rear wheel housings Insert jack arm fully into the tube hole up to the stop Position the jack so that it will always be vertical plumb line as seen from the side see arrow even if the vehicle is parked on an in...

Page 83: ...1 Screw the alignment bolt sup plied in tool kit into the upper most threaded hole 12 Adjust the jack height so that the wheel can be slipped on without being lifted 13 Install spare wheel on wheel hub Insert wheel bolts and tighten them slightly To avoid paint damage place wheel flat against hub and hold it there while installing first wheel bolt Unscrew the alignment bolt to install the last whe...

Page 84: ... and pressure increase with the vehicle speed Tire pressure should therefore only be corrected on cold tires Correct tire pressure in warm tires only if pressure has dropped below the pressure listed in the table and the respective opera ting conditions are taken into conside ration An underinflated tire due to a slow leak e g due to nail in the tire may cause damage such as tread separa tion bulg...

Page 85: ...e we recommend that you have the battery charge checked frequently if you use the vehicle mostly for short distance trips or if it is not used for long periods of time Only charge a battery with a battery charger after it has been disconnected from the vehicle electrical circuit Warning Never lean over battery while connecting or jump starting you might get burned Battery fluid contains sulfuric a...

Page 86: ... screw 2 Headlamp vertical adjustment screw 3 Fog lamp adjustment screw 4 Fastening clip for housing of turn signal parking side marker and standing lamps 5 High and low beam headlamp cover 6 Fog lamp cover 7 Turn signal parking side marker and standing lamp bulb 8 Electrical connector for high and low beam headlamp bulb 9 Clamping ring for high and low beam headlamp bulb 10 Fog lamp bulb 11 Elect...

Page 87: ...ing up mount clamping ring 9 with tab facing down and turn clockwise Push electrical connector on securely Fog lamp bulb Halogen type H3 Compress the retaining clip of the cover 6 at the top while removing it upwards Pull off electrical connector 11 Disengage retaining clip and remove bulb 10 When replacing cover 6 make sure it clicks into place Taillamp Assemblies 1 Turn signal lamp 21 W 32 cp bu...

Page 88: ...bulb To replace the bulb pull tabs on both sides arrows using a screwdriver to release cover Press bulb down turn counterclock wise and remove License Plate Lamps 5 W bulb Loosen both the securing screws 1 remove lamp and take out bulb ...

Page 89: ...abel To gain access to the fuses release clamp 1 lift the fuse box cover up and remove Before replacing a blown fuse deter mine the cause of the short circuit Spare fuses are furnished inside the fuse box Observe amperage and color of fuse Always use a new fuse for replace ment Never attempt to repair or bridge a blown fuse After replacing the fuse engage the fuse box cover at the rear and secure ...

Page 90: ...ning in panel and place on the hex drive of the electric motor Turn socket wrench manually to open or close roof as desired To slide the roof closed or to raise the roof at the rear turn clockwise To slide the roof open or to lower the roof at the rear turn counterclockwise Manual Release of Fuel Filler Flap Bend the top of the right trunk panel down slightly Pull the manual release knob while sim...

Page 91: ...y roads will damage radia tor and supports Use wheel lift or flat bed equipment With the engine not running there is no power assistance for the braking and steering systems In this case it is important to keep in mind that a considerably higher degree of effort is necessary to brake and steer the vehicle Jump Starting If the battery is discharged the engine can be started with jumper cables and t...

Page 92: ... starting with the jumper cable connected to a heavy metal bracket in the disabled vehicle s engine compartment When removing each clamp make sure that it does not touch any other metal while the other end is still attached Important A discharged battery can freeze at approx 10 C 14 F In that case it must be thawed out before jumper cables are used Jumper cable specifications Minimum cable cross s...

Page 93: ...ipping or other damage Any damage should be repaired as soon as possible to pre vent the start of corrosion In doing so do not neglect the under side of the car A prerequisite for a thorough check is a washing of the underbody followed by a thorough inspection Damaged areas need to be re undercoated Your vehicle has been treated at the factory with a wax base rustproofing in the body cavities whic...

Page 94: ...h in particular one of the older installations rewipe the recessed sections in the taillamps designed to prevent soiling if neces sary No solvents fuels thinners etc must be used In the winter thoroughly remove all traces of road salt as soon as possi ble When washing the underbody do not forget to clean the inner sides of the wheels Note It is advisable to lock the trunk lid be fore using an auto...

Page 95: ...By lining the seats with a proper intermediate cover contact discoloration will be prevented MB Tex Upholstery Pour MB Plastic Cleaner onto soft lint free cloth and apply with light pres sure Warning Do not bleach or dye seat belts as this may severely weaken them In a crash they may not be able to provide adequate protection Leather Upholstery Wipe leather upholstery with a damp cloth and dry tho...

Page 96: ...ge i e chips from stones car doors etc Hard Plastic Trim Items Headliner etc Pour MB Plastic Cleaner onto soft lint free cloth and apply with light pres sure Light Alloy Wheels MB Autoshampoo should be used for regular cleaning of the light alloy wheels If possible clean wheels once a week with MB Autoshampoo using a soft sponge and an ample supply of luke warm water If the MB Autoshampoo does not...

Page 97: ...e seat cushion Push front of cush ion down until it locks in place Ashtrays To remove front ashtray By touching the cover lightly the ashtray opens automatically Push the sliding knob 1 toward the right to eject the insert To install Install insert into ashtray frame and push down to engage To remove rear ashtray Push the ashtray down while opening and remove To install Position ashtray squarely a...

Page 98: ...estraint to the desired position Spare Parts Service All authorized MERCEDES BENZ dealers maintain a stock of original spare parts required for maintenance and repair work In addition strategi cally located parts distribution centers provide quick and reliable parts service More than 300 000 different spare parts even for older models are available MERCEDES Benz original spare parts are subjected ...

Page 99: ...iper blade down ward 2 and remove Installation Press safety tab of new wiper blade down Insert wiper blade between the tabs 3 on the wiper arm and slide into end of wiper arm Then press safety tab upward until it locks in place Note Do not open engine hood with wiper arm folded forward Headlamp Wiper Blades Removal Fold wiper arm forward Pull wiper blade up to remove Installation Place wiper blade...

Page 100: ... on border of roof which are visible when doors are opened Layout of Poly V belt Drive 1 Automatic belt tensioner 2 Crankshaft 3 Air conditioning compressor 4 Alternator 5 Power steering pump 6 Coolant p u m p fa n Install the poly V belt by starting at the belt tensioner 1 and proceede with the other pulleys in numerical order For dimensions of the poly V belt see page 103 98 ...

Page 101: ...nformation Identification Plates 100 Theft Prevention 101 Vehicle Data Card 102 Warranty Coverage 102 Technical Data 103 Fuels Coolants Lubricants etc 104 Capacities 104 Engine Oils 106 Brake Fluid 106 Diesel Fuels 107 Coolants 108 Consumer Information 109 ...

Page 102: ...ehicle Identification No 4 Engine No 5 Body No and Paintwork No 6 Information Tag California version Vaccum line routing for emission control system 7 Emission Control Tag Identification Plates When ordering spare parts please specify vehicle identification and engine numbers 100 ...

Page 103: ...arts see illustration are labeled at factory the labels show the VIN num ber of this vehicle Spare parts are similarly labeled at factory in a different location The labels show the letter R for replace ment instead of the VIN number Note Do not remove these labels These labels are intended for parts identifi cation in case of theft When replac ing parts subject to labeling please make sure that t...

Page 104: ...arranty Policy Booklet and your authorized MERCEDES BENZ dealer will ex change or repair any defective parts in accordance with the terms of the following warranties 1 New vehicle limited warranty 2 Emission system warranty 3 Emission performance warranty 4 California emission control sys tems warranty State of California only unless purchased optionally for diesel models Loss of Owner s Service a...

Page 105: ...s 61 2J x 15 H 2 Wheel offset 49 mm 1 9 in Summer tires Radial plv tires 195 65 R 15 91 H Winter tires Radial ply tires 195 65 R 15 91 T M S Electrical System Alternator 14 V 70 A Starter motor 12 V 2 2 kW Battery 12 V 72 Ah Weights See certification tag Roof load max 100 kg 220 lb Trunk load max 100 kg 220 lb Main Dimensions Overall vehicle length 4755 mm 187 2 in Overall vehicle width 1740 mm 68...

Page 106: ... by us Inquire at your authorized MERCEDES BENZ dealer Fuels Coolants Lubricants etc Capacities Capacity Engine with oil filter 7 5 I 7 9 US qt Automatic transmission Initial fill 6 6 I 7 0 US qt Fluid change 5 5 I 5 8 US qt 104 Fuels coolants lubricants etc Recommended engine oils MB Automatic transmission fluid ...

Page 107: ...B Windshield washer concentrate S 2 Fuel tank including a reserve of approx 70 I 18 5 US gal approx 9 0 I 2 4 US gal Diesel fuels acc to ASTM D 975 grades 1 D and 2 D Cooling system approx 9 5 I 10 US qt MB Anticorrosion antifreeze Your authorized MERCEDES BENZ dealer will advise you on recommended brands Use MB Windshield Washer Concentrate S and water for temper atures above freezing or MB Winds...

Page 108: ...ng point of the brake fluid is continuously reduced through the absorption of moisture from the atmosphere Under extremely hard operating conditions this moisture content can lead to the formation of bubbles in the system thus reducing the system s efficiency The brake fluid must therefore be replaced annually preferably in the spring It is recommended to use only brake fluid approved by MERCEDES ...

Page 109: ...not available a certain quanti ty of kerosene may be added Mixing only to be done within the cars fuel tank Kerosene has to be filled in be fore the diesel fuel Engine power may drop according to the proportion of kerosene For this reason keep percentage of kerosene added to the minimum necessitated by the ambient temperature The following table can be used as a reference if adding of kerosene be ...

Page 110: ...should be used to bring it up to the proper level have cooling system checked for signs of leakage The water in the cooling system must meet minimum requirements which are usually satisfied by normal drink ing water If you are not sure about the water quality consult your authorized MERCEDES BENZ dealer Anticorrosion antifreeze Your vehicle contains a number of alu minum parts The use of aluminum ...

Page 111: ...e s ability to stop on wet pavement as measured under controlled conditions on specified gov ernment test surfaces of asphalt and concrete A tire marked C may have poor traction performance Warning The traction grade assigned to this tire is based on braking straight ahead traction tests and does not include cornering turning traction Temperature A B C The temperature grades of A the highest B and...

Page 112: ......

Page 113: ...Index ...

Page 114: ...ant level check 68 Coolants 104 108 Coolant temperature gauge 67 Cruise control 62 Diesel fuels 105 107 Doors 26 Driver checks 116 Driving instructions 15 Emergency tensioning retractors 41 Emission control 69 Emission control tag 100 Engine no 100 Engine oil and filter change 18 Engine oil consumption 66 Engine oil level check 74 Engine oils 106 Engine starting and turning off 14 Engine turning o...

Page 115: ...rols 10 Instrument cluster 12 Jack 78 Jump starting 89 Keys 25 Lamps exterior Fog lamps 84 Headlamps 84 High mounted stop lamp 86 License plate lamps 86 Switch 49 Taillamps 85 Lamps interior 54 Lighter 52 Literature 115 Lockable storage compartment 53 Lubricants 104 Maintenance 4 18 Oil pressure gauge 66 Orthopedic seat 33 Outside temperature indicator 68 Paintwork no 100 Parking 17 Parking brake ...

Page 116: ...g things 77 Sun visors 52 Supplemental restraint system SRS 37 Technical data 103 Theft prevention 101 Tire pressure 82 Tires 16 79 109 Towing 89 Transmission fluid level check 75 Traveling abroad 69 Turn signals 49 Turning off engine manually 76 114 Upholstery cleaning 93 Vanity mirrors 52 V belt 98 103 Vehicle data card 102 Vehicle identification no 100 Vehicle tools 77 Warranty 4 102 Wheels 79 ...

Page 117: ... 07645 Att Service and Parts Literature Tel 201 5 73 06 00 for Canada Mercedes Benz Canada Inc 849 Eglinton Ave East Toronto Ont Canada M 4 G 2 L 5 Att Technical Publications Tel 4 16 4 25 35 50 Telex 0 65 2 42 32 The above companies will be happy to handle any such requests from customers We consider this to be the best way to obtain accurate information for your vehicle Warning To help avoid per...

Page 118: ...east every two weeks For details see page 82 3 Battery Add distilled or tap water only see page 83 4 Fluid Level in Automatic Transmission See page 75 5 Coolant Level See page 73 6 Engine Oil Level See page 74 7 Windshield Washer System Headlamp Cleaning System See page 68 8 Brake Fluid See pages 105 and 106 Vehicle Lighting Check function and cleanliness For replacement of light bulbs see pages 8...

Page 119: ...ed engine oils see page 104 Automatic Transmission MB Automatic transmission fluid For level checks and replenishment refer to page 75 Coolant For normal replenishment use water potable water quality For further information e g anticorrosion antifreeze refer to page 108 Bulbs High and low beams Halogen type 9004 fog lamps Halogen type H 3 tail parking and standing lamps 10 W 6 cp turn signal parki...

Page 120: ...Mercedes Benz AG Stuttgart Untertuerkheim ...

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Summary of Contents for 300D 2.5 1990

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Mercedes-Benz 300D 2.5 1990, Owner'S Manual, Page: 117 / 121

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Summary of Contents for 300D 2.5 1990

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