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STO36 X5
TABLE OF CONTENTS
Subject
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Hood/Front Grille . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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 Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Exhaust System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Power Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
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Table of Contents
Related Manuals for BMW STO36 X5
Summary of Contents for BMW STO36 X5
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Page 1: Table Of Contents
STO36 X5 TABLE OF CONTENTS Subject Page Introduction ..........2 Body . -
Page 2: Introduction
Introduction The X5 marks BMW’s introduction into the luxury “Sports Activity Vehicle (SAV)” niche seg- ment of the Sport Utility Vehicle market. While carrying the designation X5, the vehicle is not based on the 5 Series but it is its own new car-like platform. The X5 is offered with two engine variants: •... -
Page 3: Body
X5 to assume a BMW identity. Yet the unique side and hood treatments as well as the large wheel house openings and high ground clearance set the X5 apart as its own distinctive vehicle. -
Page 4: Specifications
Specifications 00530011-1... - Page 5 Specifications DImensions: X5 3.0i X5 4.4i Doors Length 4666 mm 4666 mm Width 1872 mm 1872 mm Height 1717 mm 1717 mm Engine: X5 3.0i X5 4.4i Designation M54B30 M62 TU B44 Engine Management Syst. MS 43 ME 7.2 Horsepower (HP) 225@5900RPM 282@5400RPM Torque...
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Page 6: Hood/Front Grille
Hood/Front Grille The hood on the X5 is distinctive, with two IHKA air intake hood scopes in the center lead- ing down to the traditional BMW twin grilles. Hood Scoops 41530004 The grilles are integrated into the hood with the secondary hood latch springing out from the grille when the hood is opened. -
Page 7: Doors/Mirrors
Doors/Mirrors The doors on the X5 incorporate side bars which serve as side impact protection without the use of the metal hooks found 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 ground around the door. -
Page 8: Door Handle
Door Handle The door handles are similar in design to the E46 and pull out and upward for opening. Removal of the handles is also similar to the E46. There are no serviceable components on the lock/latch. The assembly must be replaced as a unit. -
Page 9: Interior
Interior/Seats The instrument cluster and dashboard layout is similar to other BMW models with all of the controls in easy reach of the driver. The instrument cluster variations (high and base) are taken from the E39 as are all driver information electronic systems. - Page 10 Interior Located above the windshield in the center is the overhead console that contains the uni- versal remote switch panel, interior lighting/map panel, sunroof switch and grille for the tele- phone hands-free microphone. The light panel contains a single bulb which is controlled by the ZKE, as well as two map reading lamps.
- Page 11 Interior/Seats Two interior seat options (comfort and sport) are 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 assembly is located on the side of the driver’s seat.
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Page 12: Rear Seats
Rear Seats The rear seating area on the X5 offers 1472mm width and 977mm of head room for com- fortable seating for the rear passengers. Rear cup holders are installed in the center con- sole below the IHKA outlet grilles which incorporates a separate blower fan for the rear seating area. - Page 13 Rear Seat Backrest Adjustment Electric rear seat backrest adjustment is available on the X5 as optional equipment. Each backrest can be adjusted individually up to 20 degrees. the backrest adjustment option consists of the following: • Left/Right adjusting motors with gear drive and seat back hooks - located behind the seat backs on the shock towers.
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Page 14: System Operation
System Operation The seat backs are adjusted from the two different locations as follows: • The switches in the interior light housing receive operating power through the seat back relay when the ignition is switched on KL 15. The GM controls the operation of the relay and the switches provide the ground. -
Page 15: Climate Control Systems
Climate Control Systems (IHKR/IHKA) Two climate control systems are offered on the X5, the manual IHKR system is standard equipment on the 3 liter X5 and the IHKA system is available as an option. The IHKR is a new system for US production and the IHKA is taken from the E39 vehicles. Condenser/Receiver Dryer The X5 incorporates a new design air conditioning condenser/receiver dryer for both the manual (IHKR) and the automatic (IHKA) systems. - Page 16 Climate Control System (IHKR) The manual system is controlled through the use of bowden cables for air distribution and electronic control for temperature regulation and blower speed. One stepper motor is used for the fresh/recirculated air intake. The IHKR incorporates the following features: •...
- Page 17 IHKR Control Unit • Integrated control module with oper- ating panel. TEMP 64530003 • 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 speed fresh/rcirc air)
- Page 18 IHKR Operation IHKR system operation is as follows: • Temperature Control - The desired interior temperature is set with the rotary knob on the control panel. Control of the interior temperature is carried out electronically by the con- trol module’s cycling of the water valve to regulate coolant flow through the heat exchanger.
- Page 19 IHKR IPO KL31 Washer Jet Heater KL30 KL15 IHKR Blower Relay Blower Fan Speed Request A/C Compressor Blower Motor Ouput Stage Recirculation Rear Window Defoger Relay Aux. Fan Speed Relay Control Rear Defrost Water Valve Temperature Control Fresh Air Flap Motor DIS &...
- Page 20 Climate Control System (IHKA) The IHKA is standard equipment on the X5 with the M62 engine and optional equipment on the M54 version. The IHKA system is taken from the E39 sedan and includes all func- tions and features of the IHKA currently installed in the E39. Features of the IHKA system include: •...
- Page 21 IHKA Air Flow The micro filter for the IHKA system is installed in the engine compartment in the center of the fire wall. Warm Air Flow Stratified Air Flow 64530005 64530006...
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Page 22: Cargo Area
Cargo Area The cargo area of the X5 offers 450 liters/15.9 cuft of space and has a load capacity of 440 pounds. The retractable, removable cargo cover is standard equipment. Storage com- partments are located on the left and right sides in the rear. 52530015 The left side storage compartment contains the NAV computer when installed and the telephone transceiv-... - Page 23 Cargo Area The sliding load floor is available as an option on the X5. It is mounted through two sliding bushing on two steel rails 51530000 The load floor is held in position by the locking bowden cable mechanism that Bowden Cables latches when closed to prevent the...
- Page 24 Cargo Area The full size spare tire is mounted below the load floor with the LVA air supply system for the air springs located beneath the spare. 36530001 The battery is mounted below the LVA in a molded plastic battery box, along with the EHC control module and the PDC control module.
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Page 25: Tailgate
Tailgate The tailgate on the X5 is two sections that open up and down. The upper section has a fixed bonded rear glass that incorporates the rear window wiper and motor assembly. Two gas strut pistons are used on the upper sec- tion for opening. - Page 26 Tailgate The lower tailgate section also uses an electric actuator for its operation. The actuator is positioned in the center of the tailgate 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.
- Page 27 Tailgate (Emergency Opening) Both sections of the tailgate incorporate emergency release mechanisms for opening the tailgate in the event of electrical or component failures. The upper tailgate release is a plastic pull tab positioned on the right side of the inner trim cover.
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Page 28: Drivetrain
Drivetrain The transfer case, driveshafts, final drives and half shafts make up the drivetrain assembly. The transfer case is always mounted in the same position on the X5. This applies to other markets and future models that will utilize different transmissions for different engine con- figurations. - Page 29 Drivetrain-Transfer Case The transfer case is manufactured by New Process Gear Division of New Venture Gear Company. It is identified as model NV 125. It incorporates a planetary gear set and chain to provide the torque split and all wheel drive. The output torque of the transmission is applied to the planetary carrier of the gear set.
- Page 30 Drivetrain-Final Drives The final drives for the front and rear axles are 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 26530006 The front differential is the VAG 174 unit with a ratio of 3.64 : 1.
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Page 31: Front Suspension
Front Suspension The front suspension design is taken from the E38/E39 double pivot system. The compo- nents are larger in size and made from all steel for the expected harder use that the X5 sus- pension will receive. This includes the sub-frame which is also larger in size and supported by two hydraulic mounts for vibration absorbion. - Page 32 Front Suspension Alignment The front suspension is adjustable for toe-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 for removal in order to make any camber corrections.
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Page 33: Rear Suspension
Rear Suspension The rear suspension is the “intragal” multi-link design taken from the E38/E39 vehicles. Several components AER made from aluminum to erduce the unsprung weight. The X5 with the M62TU engine uses the EHC (air spring) suspension system. The EHC functions the same as the E39 Sport Wagon with only minor differences to the components and lay- out of the system. - Page 34 Rear Suspension Alignment As with other BMW multi-link suspensions, the X5 rear suspension is adjustable 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.
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Page 35: Ehc Control System
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). •... - Page 36 EHC System Components Control Module The Control Module is mounted in the module carrier box in the luggage compartment on the right side. It contains the processing electronics and final stages for operation of the EHC system. The control module receives the follow- ing inputs for its processing functions: •...
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Page 37: Air Springs
Air Springs The air spring is made from a flexible rubber material. It forms an air tight cavity which provides the calculated spring rate required for the sport wagon. As the spring compresses downward the bottom edge of the rubber material rolls along the vertical surface of the base mount cylinder. - Page 38 Air Supply System (LVA) The air supply system is identified as the LVA in the diagnosis program and in the repair manual. It is mounted in the spare tire well compartment. The components are housed in a sound deadening carrier, through rubber bushings, to prevent operating noises from being transmitted through the vehicle’s interior.
- Page 39 Air Supply System (LVA) Operation The single stage piston compressor produces a maximum pressure of 13.5 Bar. The com- pressor is maintenance free - provided it is used in a dust free environment. This includes the compressor’s intake air filter. The compressor is driven by a DC motor that is controlled by the compressor relay through the control module.
- Page 41 EHC System Operation A fully functional EHC system is controlled by one of three different modes of operation. The operation mode is selected by the control module based on current conditions provid- ed by the monitored input signals. The main modes of operation are: •...
- Page 42 Normal Operation Mode Once the rear lid is closed, KL 15 switched ON and the engine started, the system switch- es into the normal operation mode. In the normal mode, the control module 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.
- Page 43 Special Operation Mode • Assembly Line Mode (New control module) The assembly line mode refers to control module manufacturing. New control modules are stored in a deactivated state. The control programming is not active and must first be ZCS encoded. After installing a replacement control module, it must be coded using the DIS or MoDiC.
- Page 44 EHC Service Information Diagnosis / Coding • The EHC control module is connected to the diagnostic link. The EHC control module activates the fault display in the instrument cluster to alert the operator of the off-line sta- tus of the system. The EHC control module stores up to three electrical/electronic faults.
- Page 45 DIS/Modic Service Funnction Program The Service Functions program of the DIS/MoDiC provides the Transport Mode activa- tion/deactivation and Ride Height Offset functions (see next page). Once the transport mode has been released, or if the system requires left to right side height adjustment, the ride height "OFFSET"...
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Page 46: Steering
Steering The X5 utilizes a power assisted rack and pinion steering system due to all wheel drive con- 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 function incorporated into the seat/mirror memory system. -
Page 47: Brakes
Brakes The X5 brake system is the dual circuit (black/white) division with Electronic Brake Force distribution (EBV) through DSC control. The system is similar to the E38 with: • Vacuum booster with tube jet amplifier • Tandem master cylinder with two central valves for DSC operation •... -
Page 48: Wheels & Tires
Wheels and Tires Light alloy wheels are standard equipment on the X5. The wheels sizes include: 3 Liter version • Standard Wheel - 7.5J x17 SEH2 • Standard Tires - 235/65R - 17 H rated all season Front and Rear 4.4 Liter version standard suspension •... -
Page 49: Fuel Supply System
Fuel System Supply The fuel tank is constructed from molded plastic and is mounted under the rear seat and extends along the left side of the vehicle. It is the saddle tank design with a siphon jet pump in the right side to transfer fuel to the left side where the fuel pump is mounted. The fuel filter/pressure regulator is mounted in front of the tank along with the charcoal canister. -
Page 50: Exhaust System
Exhaust System The exhaust system of the X5 is made from stainless steel and consists of three main pieces after the exhaust manifolds. The front section consists of two monolith catalytic con- verters with pre and post-oxygen sensors. The two converters converge into one center muffler on the right side of the vehicle. -
Page 51: Power Distribution
EHC compressor unit. The battery box is formed of molded plastic and the positioning of the battery aids in weight distribution. As with all BMW vehicles, the battery is equipped with the BST on the pos- 12530012 itive battery cable. -
Page 52: Component Locations
Component Location...
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