Porsche 928 S 1984 Owner'S Manual Download Page 23

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Safety belt warning system

An audio-visual warning system is inter-
connected with the driver's safety belt.

Every time the ignition is turned on, the seat
belts warning light will come on for about 6

seconds as a reminder to buckle up. If the dri-
ver does not fasten the safety belt, the gong
will also come on for the duration of this six
second period. The gong will go off as soon as
the driver has buckled up.

Summary of Contents for 928 S 1984

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Page 2: ... Ave East Scarborough Ontario M1L2M2 Your car may have all or some of the components described in this manual Should you find explanations of a feature or equipment not installed in your car your Porsche dealer will be glad to assist you Also check with your dealer on other available options or equipment Text illustrations and specifications in this manual are based on the information available at...

Page 3: ...California emission control system warranty Califor nia USA only Always carry your Warranty Main tenance booklet with you when you take your Porsche to an authorized dealer for service It provides your Service Adviser with the information he needs and enables him to record each service If you sell your Porsche the Owner s Manual and the Warranty Mainten ance record should be left in the ve hicle t...

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Page 5: ...e gauge 31 Cooling system 67 69 Corrosion prevention 57 61 D Dashboard 37 Defogging defrosting 34 Dimensions 99 Directional signals 30 32 35 Doors locks 12 13 Driving hints 8 9 Ε Electrical system 80 90 Emergency flasher 34 Emergency service 63 Emergency starting 84 Emission control system 92 94 Engine compartment 60 hood release 47 number 6 oil 64 65 101 102 4 Engine specifications 97 98 speed ma...

Page 6: ...g 57 61 Power steering fluid 71 101 Powerwindows 13 Pressure tires 72 99 R Radiatorfan 31 Rear seats 18 Rear window defogger defroster 34 Rear window wiper switch 45 Rear view mirrors 19 Refrigerant 42 101 Roof rack 48 99 s Safe driving hints 8 9 Safety belts 20 22 Seats front rear electric 16 18 Selector lever 50 51 Shift points 49 Sliding roof electric 44 Snow chains 74 99 Spare tire collapsible...

Page 7: ...and prompt service Vehicle identification number In accordance with Federal Safety Regula tions the vehicle identification number of your car is located on the left windshield post and can be seen from the outside Engine number The engine number is stamped on the front reinforcing rib in the top half of the crankcase Paint number The paint number is on the doorjamb on the driver s side 6 ...

Page 8: ...nd the vehicle identification num ber of your car perforations as well as the Gross Vehicle Weight Rating and the Gross Axle Weight Rating Vehicle Identification Label The vehicle identification label is located un derneath the luggage compartment floor co ver next to the spare wheel well The label contains the following information 1 Vehicle Identification Number 2 Vehicle Code 3 Engine and Trans...

Page 9: ...eck engine oil level add if necessary Make it a habit to have engine oil checked with every fuel filling Check coolant level to assure sufficient en gine cooling Be sure you have a well charged battery Check brake fluid level If too low have brake system checked Replenish windshield washer fluid Check if engine hood is locked safely Replace worn or cracked wiper blades See that all windows are cle...

Page 10: ...and weather conditions Reduce speed at night and during incle ment weather Observe speed limits and obey road signs When tired get well off the road stop and take a rest Turn the engine off Do not sit in the vehicle with engine idling See WAR NINGS on Engine Exhaust When stopped or parked always set the parking brake Move the selector lever to P Automatic transmission or move the gearshift lever t...

Page 11: ...ey for ignition lock door locks and luggage compartment lock and fuel filler cap lock Do not remove the key from the steering lock while you are driving or as the car is rolling to a stop The steering column is locked when you remove the key and you will not be able to steer the car Because of the symmetrical shape of the key shaft there is no wrong way of inserting the key in the locks The new fo...

Page 12: ... provide your Porsche dealer with the key number to ob tain a duplicate key Tell him whether you need a master or an auxiliary key Key light One master key has a built in flashlight in the key head The beam from a small bulb in the key head illuminates the lower part of the key stem The flashlight is on as long as the contact but ton is depressed The flashlight is powered by a 1 5 Volt button batt...

Page 13: ...ed with an anti theft alarm system you will be given a duplicate set of the master S key illustrated above in stead of the regular master key The alarm system can only be activated or deactivated with the S key Functions for both S key and auxiliary key are locking operations Attempting to open the doors the rear lid or the engine hood by any other means or turning on the ignition when the alarm s...

Page 14: ...oth doors can be locked or unlocked by pressing the central locking button in the center con sole The button is illuminated when the doors are locked With the ignition key in Pos 0 the central locking system is operational by turning knob B Doors To open doors from outside pull the recessed door handle To open doors from inside pull recessed handle C above armrest The armrests have a built in stor...

Page 15: ...rtment light is located on which is operated by tilting the lamp lens as are as follows the hatchback The three switch positions are follows a light on continuously b light off c light on with front doors or hatchback open a light on with front doors or hatchback open a light on with front doors or hatchback open b light off b light off c light on continuously c light on continuously 14 ...

Page 16: ...Door warning lights The red spot lights in the rear doorjambs will come on when a door or the rear lid is opened mm 15 ...

Page 17: ... smooth three way seat adjustment are located at the outboard side of the seat Note Before operating the switches tilt the safety belt buckle at inboard side of seat out of the way to prevent the buckle from getting squeezed in between seat cushion and backrest which could damage both buckle and seat cover Manual operation If the electric mechanism fails the seat can be moved forward or backward b...

Page 18: ...easy access to the rear seats To release press the locking button on the side of the backrest ar row and at the same time tilt the backrest forward When the backrest is tilted back the lock will engage automatically Backrest adjustment Turn handwheel on the outboard side of the seat arrows with your body weight taken off the seatback WARNING Front seat passengers should not ride in a moving vehicl...

Page 19: ...der instrument cluster for desired positioning arrow then lock se curely Rear seats luggage compartment The backrests of the rear seats can be tilted forward to provide additional luggage space Unsnap the luggage compartment cover from the upright rear seat backrests and the rear cross wall To release backrest pull the lever on side of the backrest up and at the same time tilt the backrest forward...

Page 20: ...rror forward or rearward Heated outside mirrors with remote control When the rear window defogger defroster is switched on the outside mirrors are also heat ed electrically The outside mirrors can be ad justed from the inside by remote control when the ignition is turned on The control switch is located next to the side window vents in the armrest The electrically heated outside mirror for the pas...

Page 21: ...ar shoulder part of belt under your arm or otherwise out of position This would increase the possibility of serious injury in case of an accident Belts should not be worn twisted Do not wear belts over rigid or breakable objects in or on your clothing such as eye glasses pens keys etc as these may cause injury Several layers of heavy clothing may in terfere with proper positioning of belts Belts m...

Page 22: ... sure any slack is wound on the retractor To unfasten belt push in release button on buckle Belt will spring out of buckle To release a locked belt lean back to take the body pressure off the belt To store lap shoulder belt allow belt to wind up on retractor as you guide latch to its stowed position on doorpost Lap belts for rear seats The automatic retractor will lock the rear seat lap belt when ...

Page 23: ...lt Every time the ignition is turned on the seat belts warning light will come on for about 6 seconds as a reminder to buckle up If the dri ver does not fasten the safety belt the gong will also come on for the duration of this six second period The gong will go off as soon as the driver has buckled up 22 ...

Page 24: ...r Always set the parking brake when park ing your car Move the selector lever to P Automatic transmission or move the gear shift lever to reverse or first gear Manual transmission On hills also turn the wheels toward the curb The central warning light and the parking brake light will go out after the engine is started and the parking brake is fully released see Cen tral warning light system Loudsp...

Page 25: ...th the safe operation of your vehicle Do not ride the brakes by resting your foot on the pedal when not intending to brake Overheating and wear of the brakes is the result Before descending a steep grade re duce speed and shift transmission into a lower gear or driving position to con trol speed Do not ride the brakes or hold pedal down too long or too often This could cause the brakes to get hot ...

Page 26: ...ear depending on how the brakes are used Have the brake sys tem inspected at the intervals recommended in your Warranty Maintenance booklet New brake pads or linings Brake pads or linings may not have the highest possible braking efficiency when new There fore allow for longer braking distance during the initial 100 to 150 miles or 150 to 250 kilo meters of normal city driving if fewer stops are r...

Page 27: ...strument 11 Emergency flasher switch 12 Rear window defogger switch 13 Ignition starter switch with steering lock 14 Instrument illumination control 15 Turn signal headlight dimmer flasher parking light lever 16 Locking lever for steering wheel instrument cluster height adjustment 17 Automatic speed control lever 18 Windshield wiper and windshield head light washer lever 19 Intensive washer system...

Page 28: ... can in comparison with all other functions only be checked with the engine turned off and with the vehicle level 3 The starter is operated by turning the ig nition key to the right As soon as the engine starts release the key It will spring back to position 2 With the engine running the central and individual warning lights should go out The STOP LAMP will go out after depressing the brake pedal ...

Page 29: ... engine fails to start after 10 to 15 sec onds of cranking wait about 10 seconds before restarting Do not let the engine idle to warm it up After starting accelerate gradually and maintain moderate speed Avoid high rpm and full throt tle until the engine has reached normal oper ating temperature Stopping engine Turn key back to position 0 Do not stop engine immediately after hard or extended drivi...

Page 30: ...ill sound It is your reminder to switch off the lights Instrument illumination control With headlights on the brightness of the in strument illumination can be adjusted by turn ing the thumbwheel on the left side underneath the instrument cluster Fog lights With headlights on the fog lights can be turned on or off by depressing switch A The switch is illuminated when the fog lights are on Trip odo...

Page 31: ...t a higher rate In fifth gear the CASIS light is inoperative During maximum acceleration the CASIS ar row light will only light up at a point where en gine rpm is such that improved acceleration can be obtained by shifting into the next higher gear This means the CASIS arrow does not indicate any set shift point but that the com puter calculated shift points depend on the way you drive The arrow w...

Page 32: ...een signal indicator light in the instru ment cluster will flash with the selector lever in either up or down position If a turn signal bulb becomes defective the indicator light flashes at about twice the normal frequency Speedometer The speedometer indicates driving speed per hour In USA miles and kilometers per hour In Canada kilometers per hour The upper odometer records total distance driven ...

Page 33: ... factory installed air conditioner also check whether the electric fan in front of the air conditioner is working WARNING Before you check anything in the engine compartment let the engine cool down Hot components can burn skin on con tact The radiator fan switches on automati cally when the coolant reaches a certain temperature and continues to run even with ignition off until the coolant tem per...

Page 34: ...rned on The light will go out as soon as the headlights are switched on 32 COOLANT warning light comes on when the fluid level in the expansion tank falls below the required minimum Occasionally the light may come on when starting the engine As soon as the engine warms up the coolant in the re servoir will expand rise above the minimum level and the light will go out If the COOLANT warning light r...

Page 35: ...roken The belt should be in the regulator or the alternator it self In this case keep electrical consumption at a minimum and drive to the nearest work shop The central warning light and the warning lights in the combination instrument light up for a bulb check when the ignition is turned on They should go out as soon as the engine is started Also see Central warning light sys tem BRAKE FLUID warn...

Page 36: ...tment turn the engine off and let it cool down sufficiently Hot compo nents can burn skin on contact Rear window defogger defroster The rear window defogger defroster heating element is actuated by a push button rotary switch The switch is illuminated when the heating element is energized After the rear window has been cleared switch off the rear window defogger to avoid unnec essary drain on the ...

Page 37: ...ndicator lever to the resistance point The lever turns off automatically when released High beam low beam with ignition on and light switch in position 2 push lever forward to select high beam arrow 1 The blue indica tor light in the instrument cluster comes on when high beam is switched on Pull lever toward steering wheel arrow 2 to select low beam You can flash signal other motorists by re peate...

Page 38: ...he lever down arrow 2 and the preset speed will be resumed Switching system off To switch the auto matic speed control off move the lever toward you arrow 3 To resume the preset speed move the lever down arrow 2 To change the preset cruising speed Increase preset speed Accelerate by depressing the accelerator pe dal When the desired speed is reached push lever toward instrument cluster arrow 1 and...

Page 39: ...nt scratching the glass Spray on washer fluid first A scratched windshield will reduce visibility Always loosen blades frozen to glass be fore operating wipers to prevent damage to wiper motor WARNING Worn or dirty wiper blades will reduce visi bility making driving hazardous Clean blades regularly to remove road film and carwash wax buildup Use an alkohol base cleaning solution a lint free cloth ...

Page 40: ... button for central warning light 5 Center air vents 6 Safety belt warning light 7 Central door locking button 8 Glove compartment lock 9 Open storage shelf 10 Side view mirror adjuster 11 Front hood release lever 12 Horn 13 Power window switch 14 Electric sliding roof switch 15 Rear window wiper switch 16 Gearshift lever 17 Clock ...

Page 41: ...ll light up or flash together with the re spective individual warning light The control function of the central warning light system is divided into two major groups Group A engine oil pressure engine oil level brake circuit pressure failure brake fluid level Any malfunction reported by the system must be corrected immediately Group B brake wear pads indicator parking brake coolant level coolant t...

Page 42: ...gulator guarantees maximum heating up until the selected interior temperature has been reached To obtain maximum cooling move tempera ture control lever to the extreme left and turn the fan control knob to speed 4 In damp weather it is recommended to switch on the air conditioner even if the outside tem perature is low This dehumidifies the air and prevents the windshield from fogging up The air c...

Page 43: ...de windows 3 Air vents for passenger compartment 4 Air outlet nozzles for foot wells 5 Air nozzle inside glove compartment The side window and center air vents are ad justable to permit the regulation of air flow within the vehicle If the air flow becomes un comfortable the vents can be shut 40 ...

Page 44: ...uto matically operates at low speed even with the switch in 0 position By turning the knob clock wise fan speeds 1 4 can be selected to in crease the air volume Temperature control upper lever Move lever to desired temperature setting Program control lower lever Climate control system and fan motor off Air flow distribution only through side window and center air vents Air flow distribution throug...

Page 45: ...rn the air conditioner and observe refrige rant level through sight glass arrow in the reservoir Occasional bubbles are normal Foam or a constant stream of bubbles indicate that the system does not contain enough re frigerant In case the system requires recharging con tact your Porsche dealer He has qualified per sonnel and the necessary equipment 42 ...

Page 46: ... of the wrong design Clock The left hand push button beneath the dis play is used for setting the hour The right hand push button is used for setting minutes A brief press of a button best done with a ball point pen will set the time forward by one hour or one minute Prolonged pressure on the button s will cause the hours and or minutes to be displayed in sequence In order to set the time to the v...

Page 47: ... speeds may cause damage to the sunroof Manual operation If the electric drive mechanism fails the roof can be operated manually The crank handle provided for this purpose is in the tool kit Remove the cover from the electric drive mech anism at the rear of the headliner by pulling it down and disengaging the spring catch Remove screw and washer on bottom of drive mechanism Keep screw and washer w...

Page 48: ... the passenger side The wiper action disengages or engages auto matically when the luggage compartment lid is opened or closed When cleaning the rear window the wiper should be lifted only slightly The front sun visors can be moved to the sides as well as forward arrows The rear sun visors can be moved backward On cars equipped with an electric sliding roof the vanity mirror is located in the cove...

Page 49: ...r un locked with either the master or the auxiliary key An additional storage shelf is located un der the glove compartment WARNING Keep glove compartment door closed while driving to prevent injury during a collision Rear seat glove compartment To open the glove compartment press the button arrow and lift the lid The glove com partment is lockable 46 ...

Page 50: ...ch handle upward arrow Then lift up the hood The windshield wipers should not be tilted forward With light switch in either position 1 or 2 the engine compartment light will come on auto matically To close Lower the hood slowly and then push down with both hands until the lock snaps shut WARNING Should you notice at any time while driving that the hood is not secured properly please stop at once a...

Page 51: ...from sliding around while the car is in motion you can secure them with spider straps available through your dealer or other supply firms The eyelets for this purpose can be found behind the rear bolster and on the luggage compart ment floor WARNING Because of inherent hazards we do not recommend transporting objects larger than those fitting safely into the luggage compartment Keep the hatchback ...

Page 52: ...ust be depressed several seconds before shifting into reverse only then move the gearshift lever to the left overcom ing the spring resistance and to the front Both back up lights come on when the trans mission is put into reverse with ignition on Reverse should only be selected after the vehicle has come to a complete stop The gear positions are shown in the diagram above If you wish to shift fro...

Page 53: ...when the engine is running and the selector level is not in the P position Move the selector lever to P and apply parking brake Always make sure the selector level is in the P position when checking under the hood Otherwise any increase in engine speed may set the vehicle in motion even with the parking brake applied The driving ranges must never be used for holding the vehicle at rest uphill Alwa...

Page 54: ...se the accelerator pedal and move the selector lever from the range you are into the range you want Then step on the accelerator again WARNING Do not shift to a lower driving position until vehicle speed has dropped below the spe cified limits Engine speed will suddenly increase and may cause engine damage and loss of vehicle control Stopping When stopping temporarily at traffic lights for example...

Page 55: ...own When depressing the accelerator pedal you will find resistance at the throttle position By applying greater pressure the pedal can be pushed beyond this point to the kickdown po sition The transmission will now shift automat ically into the next lower gear to give you max imum acceleration and only shift up again after the engine has reached maximum speed in that particular gear Be careful whe...

Page 56: ...250 km This also applies to replacement brake pads Breaking in new tires New tires do not have maximum traction They tend to be slippery Break in new tires by driv ing at moderate speeds during the first 60 to 120 miles 100 to 200 km Engine Oil Consumption During the break in period oil consumption may be slightly higher than normal The rate of oil consumption depends on the quality and viscosity ...

Page 57: ... vehicle reduces fuel economy Always keep cargo to a minimum and remove all unnecessary items Organize your trips to take in several er rands Use air conditioner only when needed All electrical consumers contribute to in creased fuel consumption Government regulations in the United States and Canada require that automobiles meet specific emission regulations and safety stan dards Therefore cars bu...

Page 58: ...will prevent accidental pumping of leaded fuel into cars with a cata lytic converter Unleaded fuels may not be available outside the continental U S and Canada Therefore we recommend you do not take your car to areas or countries where unleaded fuel may not be available Octane ratings Octane rating indicates a gasoline s ability to resist detonation Therefore buying the correct octane gas is impor...

Page 59: ...ssion control systems Gasolines containing ethanol A mixture of unleaded gasoline and ethanol ethyl alcohol grain alcohol is sold in some areas This mixture is sometimes called Gas ohol You may decide to use gasohol in your Porsche provided it contains no more than 10 ethanol and the octane requirements for your vehicle are met However we strongly recommend switching back to gasoline with out etha...

Page 60: ...le or hazardous in other ways Only use spot removing fluids in well ventilated areas Do not wash wax or dry the vehicle with the engine running Do not clean the underside of chassis fenders wheel covers etc without pro tecting your hands and arms You may cut yourself on sharp edged metal parts Moisture and road salt on brakes may affect braking efficiency Test the brakes after each vehicle washing...

Page 61: ...ese oils are gra dually lost due to weather and similar causes they must be replenished through regular and proper care of the finish Given proper care the original finish will retain its luster for many years Ask your dealer for approved cleaning agents and preservatives The use of polishes is recommended only after it becomes evident that the normal preservatives no longer ac complish the job Du...

Page 62: ...therstrips To seal properly weatherstrips around hood windows and doors must be pliable To retain flexibility of the rubber spray with silicone coat with talcum powder or glycerine to retain flexi bility of the rubber and to protect against freez ing in the winter Antenna The telescopic radio antenna should be cleaned weekly Do not retract a dirty antenna as this may damage the electric mechanism ...

Page 63: ...er or with a solvent type vinyl or leather cleaning agent Occasionally apply a colorless vinyl or leather preservative to retain the material s luster and pliability Leather and leather trim To keep leather seats and trim beautiful and soft they should be cleaned and cared for regularly Clean leather with a soft white woolen cloth and a mild soap water solution Do not use chemical or abrasive clea...

Page 64: ...aired promptly Oil based protective sprays must not be applied Only tar or wax based anti corrosion protectors are compatible with the factory applied undercoating Before application road dirt and oily substances must be removed Whenever the lower body shell axle trans mission or engine assemblies are repaired the lost anti corrosion coating of the af fected surface should be renewed Let your Pors...

Page 65: ...jewelry or long hair from get ting caught in the fan blades the drive belts or any other moving engine parts Your Porsche is equipped with a tran sistorized ignition system with breaker less distributor When the ignition is on high voltage is present in all wires con nected with the ignition system there fore exercise extreme caution when working on any part of the engine while the ignition is on ...

Page 66: ...ift out tray fitted into the rear cross wall of the car To remove or replace the tray turn both holding knobs 90 arrows The tool kit contains tools needed for minor road side repairs or adjustments Regulations in some countries require addi tional tools Details should be obtained before leaving for a foreign country Car jack The car jack is located underneath the luggage compartment together with ...

Page 67: ...e engine wait a few minutes for the oil to return to the oil sump 1 Pull out dipstick and wipe it clean with a rag 2 Reinsert dipstick push it in all the way for an accurate reading 3 Pull dipstick out again The oil level is cor rect if it is between the max und min marks on the dipstick 4 If oil level is below min mark or not showing on dipstick add oil immediately The difference between the two ...

Page 68: ...ar ranty Maintenance booklet accompanying the vehicle apply to normal operating condi tions and must be adhered to including inter vals for oil filter change If you drive mostly short distances or if you operate the vehicle in dusty areas or under predominantly stop and go traffic conditions or when temperatures remain below freezing for extended periods the engine oil should be changed more frequ...

Page 69: ... the ATF level The ATF should be checked at the intervals listed in your Maintenance Schedule A cor rect ATF level is very important for the proper functioning of the transmission The reading should be done when the ATF is warm with the engine idling the selector lever in Neutral and the parking brake applied The level of the ATF can be checked visually through the transparent reservoir located at...

Page 70: ...ain in the cooling system for summer operation Cooling system capac ity and specified anti freeze and water ratios are listed under Filling Capacities Use any quality phosphate free anti freeze containing ethylene glycol available at your Porsche dealer Anti freeze other than spe cified by Porsche for aluminium engines and radiators may cause corrosion of the cooling system leading to engine over ...

Page 71: ...nt temperature warning light To avoid damage to the engine only add cold anti freeze and cold water to the cooling sys tem when the engine is also cold A warm engine should only be topped up if the coolant level has dropped appreciably below the filler mark Too much added coolant will escape through the pressure cap when cool ant warms up Bleeding cooling system If more than about 1 1 U S qt or 1 ...

Page 72: ...4 Unscrew and remove drain plugs arrow from left and right hand sides of crankcase and drain coolant 5 Replace seals for drain plugs on crankcase and the O ring for drain plug on radiator Tightening torques radiator plug 1 1 1 5 lbft or 1 5 2 0 Nm crankcase drain plugs 33 37 lbft or 45 50 Nm 6 Add coolant until level reaches edge of filler cap opening with heater lever set at warm 7 Run engine at ...

Page 73: ...er voir use only new and unused DOT 3 or DOT 4 brake fluid that meets SAE spe cification J1703 and conforms to Motor Vehicle Safety Standard 116 Do not use any other brake fluid or brake fluids that have absorbed moisture from the open air or brake fluid that is dirty It may cause premature wear or unre liable braking action Do not add or mix DOT 5 silicone type brake fluid with the brake fluid in...

Page 74: ...ent A dirty air cleaner not only reduces engine per formance but can lead to premature engine wear The filter element must be replaced at the intervals listed in your Maintenance Sche dule If driving is mostly done in areas where the air is very dusty the air cleaner should be checked and cleaned frequently perhaps daily 1 Detach air intake hoses from air cleaner housing Make sure that each hose s...

Page 75: ...pressure listed on the tire sidewalk Also refer to Technical data Cold tire inflation pres sure means when a car has not been dri ven for at least 3 hours or less than 1 mile Never let any air out of warm tires to meet cold tire pressure specifications Tire traction WARNING When driving on wet or slushy roads a wedge of water may build up between the tires and the road This phenomenon is known as ...

Page 76: ... tread depth etc This also applies to Porsche recommended alternate replacement tires In case of tire damage where it is uncertain whether there is a break in the ply with all its consequences or tire damage caused by ther mal or mechanical overloading due to a loss of pressure or any other prior damage we recommend that the tire be replaced for safety reasons If one faulty tire is replaced it sho...

Page 77: ...longed high speed Snow tires do not have the same degree of traction on dry wet or snowfree roads as a normal tire Further more snow tires wear rapidly under these conditions Snow tires do not fulfill their purpose if the tread depth is less than 5 32 in 4 mm Snow chains Should snow chains be necessary they must be mounted on the drive wheels only Check with local authorities for possible re stric...

Page 78: ...psi or 2 2 bar Check pressure with tire pressure gauge 4 Have flat road tire repaired and remounted on car at next service stop Remember the collapsible tire is for emergency use and short distances only When the air is released from the collaps ible tire it will return to its original shape after cooling down for several hours Store collaps ible tire in compartment underneath the lug gage compart...

Page 79: ...is not necessary to balance the wheels after installing lockable wheel nuts To lock a wheel 1 Remove protective plastic cap from wheel nut 2 Insert key all the way and slide lock sleeve over wheel nut 3 Make sure that the edge of the lock sleeve rests firmly against base of wheel nut 4 Press lock sleeve firmly against wheel nut while removing key 5 Replace protective plastic cap Changing a wheel W...

Page 80: ...cles deli vered with lockable wheel nuts by the ma nufacturer include in addition to the four keys a standard wheel nut for the spare It is permissible to interchange a standard wheel nut with a lockable wheel nut from another wheel Be sure the wheel nuts are inserted with the beveled edge toward the wheel When tightened crosswise the nuts will center the wheel correctly 6 Inflate the collapsible ...

Page 81: ... points illustrated on preceding page white arrows The rear lift points are located on the rear axle control arm mount illustrated above arrow Lifting car with floor jack The same lift points illustrated for the hoist also apply when using a floor jack The rear end of the car can also be lifted with a floor jack in the center of the rear suspension cross mem ber To avoid possible damage it is reco...

Page 82: ...rotective cover plate from fuse relay board 2 Turn fuses between contact springs until metal fuse strip faces upward In a blown fuse the metal strip is separated 3 Take out blown fuse by carefully depres sing the upper contact spring 4 Carefully install new fuse so that the metal strip is visible The fuse must fit tightly be tween the contact springs do not bend the contact springs 5 Replace cover...

Page 83: ... rear window wiper return 16 16 electric radiator fan 25 17 heating 25 18 rear window defogger 25 19 headlight motor 16 20 headlight washer 16 Relays To preclude any possibility of damage we recommend you have a defective relay check ed and exchanged by your Porsche dealer 21 power window controls central door locking system 25 22 fuel pumps 16 23 interior lights clock 8 24 high beam left high bea...

Page 84: ...ith a solution of water and baking soda to neutralize the acid and prevent damage to fabric and metal Checking the electrolyte fluid level The electrolyte fluid level in your battery can be checked by unscrewing and opening the filler vent caps of each cell The fluid level should meet the indicator mark in each cell If necessary top up with distilled water How often water must be added depends on ...

Page 85: ... of gas trapped in the ice Allow a frozen battery to thaw out first Never use a fast charger as a booster to start the engine This may seriously dam age the vehicle s electrical system and the charger Fast charging a battery is dangerous and should only be attempted by a com petent mechanic with the proper equip ment Slow battery charging WARNING Heed all warnings and follow instructions that come...

Page 86: ... caps from booster battery and discharged battery Preferably lay a cloth over open vents to reduce explo sion hazard How to use jumper cables WARNING To avoid serious personal injury and damage to the vehicle heed all warnings and instructions of the jumper cable manufacturer The jumper cables must be long Improper hook up of jumper cables can ruin the alternator Always connect POSITIVE to POSITIV...

Page 87: ...tive terminal of the booster bat tery Next connect clamp at end of negative cable to the negative terminal of the booster battery Then connect clamp at other end of negative cable to the en gine compartment strut rod arrow Caution The cable clamps must not contact each other and the plus cable leading to the positive post must not contact any metal part of the car Caution Do not try to start car b...

Page 88: ... the car When traveling abroad remember that some countries require spare bulbs as part of the safety equipment Sealed Beam Headlights Replacing light unit 1 Turn the ignition on 2 Turn light switch to position 2 to raise the headlights 3 Turn the ignition off 4 Unscrew the 3 Phillips screws arrows and remove headlight cover and trim ring 5 Unscrew the 3 small Phillips screws from sealed beam secu...

Page 89: ...hillips screws Take off lamp 3 Disconnect wire Push down holding clamp for bulb 4 Remove defective bulb and replace Be sure guide pins on bulb base fit into socket of reflector 5 Reinstall lamp Tighten screws Check functioning and adjustment of light 6 Install plastic trim and tighten retaining screws Tail lights The tail lights are housed in one unit A turn signal light C stop light Β tail light ...

Page 90: ...t on headliner and carefully pry out the lamp housing 2 Remove defective bulb between contact springs and insert new bulb 3 Insert one side of the lamp housing into cut out and press firmly on the other side Light unit will snap into place Ashtray light 1 Remove the two screws in ashtray hous ing and pull the housing upward and out 2 Slide bulb holder out of the housing and replace defective bulb ...

Page 91: ...moves left Driver s seat should be occupied by a person or a weight of approx 155 lbs 70 kg Tire pressure must be correct Roll car forward a few feet so that the sus pension seeks its normal position Each headlight and fog light has two adjust ing screws one for lateral setting and one for vertical By turning these screws left or right the corresponding adjustment in beam position is effected Scre...

Page 92: ...cting rod assembly is designed in such a way that it need only be turned to the left to either raise or retract the headlights WARNING Do not turn the knob on the drive shaft as long as the automatic mechanism is operating The motor may turn suddenly and cause injury Before turning the knob check whether the motor will work with the ignition in position 1 or 2 and the light switch in position 2 90...

Page 93: ...he recommen dations described in your Warranty Maintenance booklet Lack of proper maintenance as well as improper use of the vehicle will impair the function of the emission control system and could lead to damage Do not alter or remove any component of the emission control system unless approved by the manufacturer Do not alter or remove any device such as heat shields switches ignition wires val...

Page 94: ...ects the air fuel ratio so that the engine al ways receives an accurately metered air fuel mixture Crankcase Ventilation Through Crankcase Ventilation undesirable emissions from the engine crankcase are not permitted to reach the outside atmosphere These emissions are recirculated from the crankcase to the air intake system From here the emissions mix with the intake air and are later burned in th...

Page 95: ...0 Ignition distributor 11 Intake manifold 12 Throttle valve housing 13 Cold start injector 14 Aux air valve for cold start 15 Vacuum limiter vehicles with manual gearbox only 16 Venturi tube 17 El air valve 18 Control valve 19 Thermo time switch 20 from fuel tank 21 to fuel tank 22 to charcoal canister 23 to brake booster system 24 Secondary air pump 25 Air diverter valve 26 Check valve 94 ...

Page 96: ... of the engine is below a defined temperature Fuel vapors from the carbon canister will be mixed with fresh air taken from the engine compartment This mix ture will be directed via two vacuum controlled valves to the air intake system housing The temperature controlled ON OFF valve has the fol lowing functions To stop purging of the canister during idle the rich vapor flow from the canister would ...

Page 97: ...ng on fuel pumps in U S A Spark plugs Bosch WR 8 DS Beru RS 35 Spark plug gap 0 028 0 032 in 0 7 0 1 mm Battery capacity 12 Volts 88 Ah Alternator output 1260 W 90 A AC Firing order 1 3 7 2 6 5 4 8 Ignition timing 20 before TDC at 3000 rpm with distributor vacuum disconnected Ignition Transistorized ignition system with breakerless distributor Fan belts Alternator Polyrib Κ 4 858 cooling fan and a...

Page 98: ... cycle 4 stroke Cooling water cooled Lubrication pressure fed from sump Cylinder block and head light metal alloy Valve operation 1 overhead camshaft per cylinder bank Camshaft drive toothed V belt Crankshaft forged Fuel supply electric pump Fuel injection AFC Air Flow Control ...

Page 99: ... weight 4123 lbs 1870 kg Maximum axle load front 1985 lbs 900 kg Maximum axle load rear 2205 lbs 1000 kg Permissible rack load 165 lbs 75 kg Do not exceed maximum permissible weight With optional equipment up to 3439 lbs 1560 kg Dimensions at permissible max load Wheelbase 98 43 in 2500 mm Wheel track front 60 40 in 1549 mm Wheel track rear 59 90 in 1521 mm Turning circle curb to curb 31 ft 5 in 9...

Page 100: ...d half load capacity 2nd gear approx 39 5 2nd gear approx 30 5 4 7 3rd gear approx 25 3rd gear approx 14 5 2 6 4th gear approx 16 4th gear approx 7 5 1 8 5th gear approx 9 5 shortly climbing performance B r a k e S y s t e m Hydraulic dual circuit brake system with front and rear brake circuits Front and rear Disc brakes Brake power assist Parking brake acting on rear wheels Chassis Suspension Uni...

Page 101: ...transmission Approx 2 85 U S qts or 2 7 liters hypoid oil SAE 90 according to API classification GL 5 or Mil L 2105 B Powersteering Approx 0 74 U S qt or 0 7 liters ATF Dexron Fuel tank Approx 23 U S gals or 86 liters including a reserve of 2 11 U S gals or 8 liters Unleaded fuel only Minimum octane rating 91 RON 87 CLC or AKI rating on fuel pumps in U S A Brake fluid Approx 0 42 U S pint or 0 2 l...

Page 102: ...riations are no cause for alarm When using SAE 10 or SAE 5 W 20 engine oil avoid high speed long distance driving if outside temperature rises above the indicated limits Single grade oil Porsche recommends the use of single grade oils only if multi grade oils are not readily available However engine oil changes must then be per formed according to seasonal temperature changes to guard against engi...

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Page 107: ...h automatic transmission must not be started by pushing or towing See Emergency starting with jumper cables Seat adjustment Backrest Pull lever in front of seat Press button on side of seat back Fuses Relays The central fuse relay board is located in the passengers footwell under the floor panel Fuel recommendation 91 RON 87 CLC or AKI on U S fuel pumps minimum UNLEADED FUEL ONLY Fuel tank capacit...

Page 108: ... 5 liter Warning Before checking anything in the engine com partment let the engine cool down The fan blades will ro tate spontaneously even with ignition off until coolant temperature drops Engine oil Use only quality oil labeled API Service SF or SE Details under Engine Oils Filling ca pacity is 7 9 U S qts or 7 5 liters Check oil level as prescribed Manual transmission For manual transmission a...

Page 109: ...der Fil ling Capacities Use only additives recommend ed for aluminium engines and radiators See Cooling Sys tem Jack support points Black arrows Jackports for car jack White arrows Lift points for workshop hoist or floor jack Tire pressure front and rear 36 psi or 2 5 bar for summer and snow tires 32 psi or 2 2 bar for collapsible spare tire Spare tire jack Underneath luggage compartment Tool kit ...

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Porsche 928 S 1984, Owner'S Manual

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