BMW STO36 X5 Скачать руководство пользователя страница 35 | Manualshive

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Overview of EHC Control System

The control philosophy of EHC is to "Initiate a control sequence only when necessary". The
system offers the following advantages:

•

The control system operates independently from the vehicle’s engine (no engine driven
hydraulic pump system as per previous self leveling systems).

•

Individual control of the rear wheels is possible

•

An uneven load is identified and compensated for

•

Uneven road surfaces are identified and not compensated for

•

Automatic control is interrupted when cornering

•

The system is diagnosable using the DIS or MoDiC

The air suspension system consists of the following components:

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Содержание STO36 X5

Страница 1: ...6 Doors Mirrors 7 Interior 9 Climate Control Systems 15 Cargo Area 22 Tailgate 25 Drivetrain 28 Front Suspension 31 Rear Suspension 33 EHC Control System 35 Steering 46 Brakes 47 Wheels Tires 48 Fuel...

Страница 2: ...wing features Four wheel independent sus pension BMW tradition Full time all wheel drive planetary gear transfer case All road vehicle ON OFF road capabilities High ground clearance Unitized body and...

Страница 3: ...cally BMW yet produce an all wheel drive vehicle that can also be used off road This was achieved through the use of independent front suspension and multi link rear suspension components that are tak...

Страница 4: ...4 Specifications 00530011 1...

Страница 5: ...oss Weight 2600 kg Not Available Manual Trans Gross Weight 2625kg 2650kg Auto Trans Cargo Volume 16 1 54 4 cu ft 16 1 54 4 cu ft Towed Weight Braked 1600 kg Not Available Manual Towed Weight Braked 17...

Страница 6: ...grilles The grilles are integrated into the hood with the secondary hood latch springing out from the grille when the hood is opened The four round headlights complete the front end with Xenon low be...

Страница 7: ...on the sedans The mirrors are aero style that includes cascade lighting at the bottom of the mirror for vehicle entry at night The lights are switched on when the vehicle is unlocked to light the gro...

Страница 8: ...emoved by removing the torx screw through the access hole in the door Once the screw is removed the lock cylinder can be pushed out of the handle assembly The handle is removed by loosening the hex nu...

Страница 9: ...f the driver The instrument cluster variations high and base are taken from the E39 as are all driver information electronic systems The center console contains the radio or navigation system and the...

Страница 10: ...as well as two map reading lamps The switch provides a ground signal which the GM recognizes as a request to either turn the interior lights on or off If the switch is held 3 seconds the lights are s...

Страница 11: ...e available for the X5 The seats are mount ed high in the cabin for good visibility and offer 8 way power memory adjustments with lumber support The seat mirror memory control module and switch assemb...

Страница 12: ...up holders are installed in the center con sole below the IHKA outlet grilles which incorporates a separate blower fan for the rear seating area The rear seats have a 60 40 split with the fold down ce...

Страница 13: ...eft Right adjusting motors with gear drive and seat back hooks located behind the seat backs on the shock towers The rear seat backs lock into the D shaped hooks on the backrest adjustment linkage Lef...

Страница 14: ...lay and the switches provide the ground The switches in the D pillar receive KL 30 and allow seat back adjustment whenever the rear tailgate is opened to gain access to the switches The adjustment mot...

Страница 15: ...automatic IHKA systems The dryer cartridge and condenser are one component with the dryer integrated on the left side The dryer cartridge contains a replaceable filter screen and dryer unit The conden...

Страница 16: ...s used for the fresh recirculated air intake The IHKR incorporates the following features Fresh air intake grilles integrated into the hood the fresh air passes through the single micro filter install...

Страница 17: ...ule with oper ating panel IHKR heater air conditioner unit with 1 heat exchanger temperature sensor 1 evaporator temperature sensor 1 footwell temperature sensor Blower motor 1 stepper motor high spee...

Страница 18: ...ough the use of gear linkages and bowden cables The air can be set for Footwell or blended between footwell face vent or footwell and defrost Defrost or blended between footwell defrost or defrost fac...

Страница 19: ...d Request A C Compressor Recirculation Rear Defrost Temperature Control Evaporator Temperature Sensor Washer Jet Heater Blower Relay Blower Blower Motor Ouput Stage M Rear Window Defoger Relay Aux Fan...

Страница 20: ...Recirculation Control AUC Recirculation air flap control from the MFL REST function for residual heat when vehicle is stopped Service station feature that closes the water valves when stopped to prev...

Страница 21: ...21 IHKA Air Flow The micro filter for the IHKA system is installed in the engine compartment in the center of the fire wall 64530005 Warm Air Flow Stratified Air Flow 64530006...

Страница 22: ...the left and right sides in the rear The left side storage compartment contains the NAV computer when installed and the telephone transceiv er and CD changer The right side storage compartment contai...

Страница 23: ...n two steel rails The load floor is held in position by the locking bowden cable mechanism that latches when closed to prevent the floor for sliding while the vehicle is moving The load floor incorpor...

Страница 24: ...or the air springs located beneath the spare The battery is mounted below the LVA in a molded plastic battery box along with the EHC control module and the PDC control module If the optional trailer t...

Страница 25: ...micro switch for operation located between the two license plate lights The actuator locks into the lower tailgate section when closed A micro switch positioned in the center console switch panel is...

Страница 26: ...lgate and operates two latches though bowden cables The latches are positioned on the left and right sides of the tailgate Two springs are used to dampen the operation of the lower tailgate section Ad...

Страница 27: ...the right side of the inner trim cover Pulling the release tab will mechanically release the upper actuator The lower tailgate emergency release is accessed by removing the trim cover on the tail gat...

Страница 28: ...nter bearing while the front drive shaft is a single piece that is splined to the transfer case and bolted to the front differential The breather vents for both differentials and the transfer case are...

Страница 29: ...orque of the transmission is applied to the planetary carrier of the gear set The rear drive shaft is connected to the annulus gear and the front drive shaft is connected to the sun gear through the c...

Страница 30: ...conventional differentials The DSC system provides anti spin slip control for both the front and rear axles on the X5 The rear differential is the HAG 188K compact unit with a ratio of 3 64 1 The fro...

Страница 31: ...lic mounts for vibration absorbion The front suspension carrier incorporates an aluminum stiffening plate that is bolted to the carrier It adds to the front axle kinematics by reducing flex in the fro...

Страница 32: ...e in and camber The camber cor rection is limited to 12 minutes through the elongated slots at the top of the strut towers The locating pin at the strut mount is pressed in place and must be pried out...

Страница 33: ...ngs in the rear with the EHC system as an option The rear struts on the X5 are mounted to the body instead of the sub frame The rear axle sub frame is mounted to the body through four bushings larger...

Страница 34: ...e for Camber and Toe in Due to the limited space special tools have been produced for aligning the rear suspension The Camber is adjusted through the eccentric bushings at the upper control link arm T...

Страница 35: ...le s engine no engine driven hydraulic pump system as per previous self leveling systems Individual control of the rear wheels is possible An uneven load is identified and compensated for Uneven road...

Страница 36: ...running Door tailgate open closed The control module incorporates two filters slow rapid for processing the input signals from the ride height sensors Depending on the operating mode either the slow...

Страница 37: ...due to the compact design of the springs Rear Axle Level Sensors Hall effect sensors are mounted on the left and right sides of the rear suspension for ride height detection They are pivoted by a cou...

Страница 38: ...ior With the exception of the compressor relay individual replacement parts for the air supply system are not available If diagnosis determines a defect in any of the other air system components compl...

Страница 39: ...up to a working pressure of 11 4 Bar 0 8 1 5 Bar This is controlled through the pressure maintenance valve The air under pressure is fed through the dryer and check valve to the solenoid valve block...

Страница 40: ...40...

Страница 41: ...des basic operation Transport Mode Transport mode is set at the factory and raises the vehicle 30mm to prevent vehicle damage during transportation It must be deactivated with the DIS MoDiC prior to c...

Страница 42: ...e will constantly monitor the input signals from the ride height sensors and will activate a correction if the ride height deviates by at least 10mm Tailgate Operating Mode The tailgate operating mode...

Страница 43: ...ring To prevent unnecessary suspension adjustments while driving through corners a control interrupt is built into the system Above 30MPH the control module monitors the left right ride height sensors...

Страница 44: ...ta tus of the system The EHC control module stores up to three electrical electronic faults Diagnosis troubleshooting of EHC is carried out using the fault symptom troubleshoot ing program of the MoDi...

Страница 45: ...out to ensure that the vehi cles suspension has a base ride height level starting point The HEIGHT OFFSET is adjusted using the DIS or MoDiC The procedure is as follows Place the vehicle on a level su...

Страница 46: ...siderations The power steering pump is a vane cell design The turning radius of the X5 is 12 2 meters The steering column is electrically adjustable for length and height that includes the mem ory fu...

Страница 47: ...der with two central valves for DSC operation Brake fluid reservoir with reed contact Vented front rotors Solid rear Single piston calipers DSC hydraulic unit with integrated control module Pre load p...

Страница 48: ...ont and Rear 4 4 Liter version sports suspension Standard Wheels 9J x 19 EH2 FRONT 10J x 19 EH2 REAR Standard Tires 255 50R 19 Front 285 45R 19 Rear V rated The X5 uses a two piece lug bolt that incor...

Страница 49: ...ilter pressure regulator is mounted in front of the tank along with the charcoal canister The components are covered by a plastic plate to protect them when driving off road The liquid vapor separator...

Страница 50: ...olith catalytic con verters with pre and post oxygen sensors The two converters converge into one center muffler on the right side of the vehicle The two rear sections consists of the tail pipes and m...

Страница 51: ...ids in weight distribution As with all BMW vehicles the battery is equipped with the BST on the pos itive battery cable Power distribution for the vehicle and systems is through two fuse carriers moun...

Страница 52: ...52 Component Location...

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