Steering and Wheel Alignment - Repair - e90 BMW M3 E90

32 00 620 Adjusting rear axle

Note. A camber change always means a toe change as well. The camber must therefore be adjusted first.

Adjusting camber

Replace nut (2) and tighten to 5 Nm.

Turn eccentric bolt (1) to adjust camber to setpoint value.

Tighten nut (2).

Tightening torque 33 32 9AZ .

Scheme 130

Adjusting toe

Replace nut (2) and tighten to 5 Nm.

Turn eccentric bolt (1) to adjust toe to specified value.

Tighten nut (2).

Tightening torque 33 32 7AZ .

Scheme 131

32 00 610 Adjusting toe-in and camber on front axle (M3)

Note. Camber and toe-in influence each other. Adjust the toe-in first in order to simplify the adjustment procedure. The centering pin may only be driven or twisted out if the camber is outside the specified tolerance after toe adjustment.

Move steering into straight-ahead position by means of markings on cap (1) and steering gear (2).

Align steering wheel and secure with steering wheel arrester.

Scheme 132

Adjust toe-in

Clean thread on tie rod.

Loosen screw (2).

Turn tie rod (3) and if necessary grip tie rod end (1) to adjust toe-in to setpoint value.

Tighten screw (2).

Tightening torque 32 21 2AZ .

If necessary, correct installation position of gaiter.

Scheme 133

Adjusting camber

Remove .

Unclip protective cap (1) and disconnect plug connection underneath.

Release nuts (2) and remove suspension cross-brace ring (3).

Scheme 134

Scheme 135

Clean wheel arch from below in area of support bearing with compressed air.

Twist out centering pin (1).

Move spring strut support bearing with a suitable screwdriver (2) to adjust the camber to the setpoint value.

If necessary, repair paintwork damage on spring strut dome.

Scheme 136

Fit suspension cross-brace ring (3).

Replace nuts (2) and tighten down.

Tightening torque 31 31 1AZ .

Note. Make sure protective cap is correctly seated.

Connect plug connection and fit protective cap (1).

Install LEFT (OR RIGHT) SUSPENSION CROSSBRACE .

After installation

1. Check directional stability of car; if necessary, repeat toe-in adjustment

32 10 005 Adjustment for active front steering

Note. Adjustment of the active front steering must be carried out

1. Before adjustment work on the front axle/steering
2. after all mechanical work on the steering system
3. after the battery has been disconnected or electrical plug connections on the steering column switch cluster have been disconnected
4. after replacement/programming or coding of the following components: Steering column switch cluster DSC control unit Active front steering control unit ARS control unit

Connect vehicle to BMW diagnosis system.

Select and carry out initial operation/adjustment for active front steering .

61 31 996 Carrying out steering angle sensor adjustment

Note. Steering angle sensor adjustment must be carried out: Before adjustment work on the front axle/steering after all mechanical work on the steering system E46 (all-wheel drive), E53, E83: after disconnecting the battery after replacement/coding/programming of the following components: Fixture for switches of steering column/switch cluster/steering angle sensor Dynamic Stability Control (DSC) control unit Control unit active anti-roll stabilization (ARS)

Connect vehicle to BMW diagnosis system or Software Service Station.

Select and carry out steering angle sensor adjustment under Service functions.

00 Danger of poisoning if oil is ingested/absorbed through the skin

Danger of poisoning!

Ingesting oil or absorbing through the skin may cause poisoning!

Possible symptoms are

1. Headaches
2. Dizziness
3. Stomach aches
4. Vomiting
5. Diarrhoea
6. Cramps/fits
7. Unconsciousness

Protective measures/rules of conduct

1. Pour oil only into appropriately marked containers
2. Do not pour oil into drinking vessels (drinks bottles, glasses, cups or mugs)
3. Observe country-specific safety regulations

First aid measures

1. Do not induce vomiting.

If the person affected is still conscious, he/she must rinse out their mouth with water, drink plenty of water and consult a doctor immediately.

If the person affected is unconscious, do not administer anything by mouth, place the person in the recovery position and seek immediate medical attention.

Scheme 137

A wheel/chassis alignment check See 3200150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or 3200155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD must be carried out after the following work

1. Release of following screw/bolt connections: Steering gear to front axle carrier Control arm to front axle carrier Support bearing to body (if centering pin is missing) Tie rod end to tie rod
2. Replacement of following parts: Front axle carrier Steering gear Gaiter (if the tie rod end has to be screwed off) Control arm Support bearing (if centering pin is missing) Swivel bearing Tie rod end Tie rod

Scheme 138

32 00... General information and definitions

Toe angle difference

a Toe difference angle

D Centre point of operating circle

The toe angle difference is the angle adjustment of the inner cornering wheel relative to the outer cornering wheel when negotiating a curve. Steering is designed in such a way that angular position of wheels changes as steering lock progresses.

Scheme 139

A correctly adjusted toe angle difference produces equal values for left and right lock with consideration of factory tolerances.

Toe angle difference provides information on corresponding operation of steering trapezoid for left or right steering lock from center position.

Camber

Inclination of the wheel from the perpendicular.

Scheme 140

Toe

Reduction in distance of front of front wheels to rear of front wheels. The toe-in prevents the wheels from moving apart during driving and thus

1. the wheels from vibrating and grinding
2. excessive tire wear
3. excessive strain on the steering linkage and its links/joints
4. heavy vehicle steering

Scheme 141

Measurement is performed in "straight-ahead mode".

Castor

Is the inclination of the kingpin in the direction of travel viewed from the side.

The line through the center point of the spring strut support bearing and the control arm ball joint corresponds to the "kingpin".

Thanks to caster, wheels are pulled and not pushed. In a similar manner to king pin inclination, when driving in curves or around corners, returning forces are reproduced to help return wheels to straight-ahead position.

Scheme 142

Geometrical driving axis 1

Is the angle bisector from the total rear-wheel toe.

Front-wheel measurements are taken in reference to this axis.

Symmetrical axis 2

Centre line running through front and rear axles.

Scheme 143

Wheel misalignment

Angle by which one front wheel is displaced more towards front or rear than the other front wheel. The wheel offset angle is positive when the right wheel is displaced towards the front and negative when it is displaced towards the rear.

Scheme 144

Kingpin offset/scrub radius

Is the distance from the center of the wheel contact face to the intersection point of the kingpin extension. The line through the center point of the spring strut support bearing and the control arm ball joint corresponds to the "kingpin".

The scrub radius is influenced by camber, kingpin angle and wheel offset of the wheel rim.

Scheme 145

32 00... Identification of suspension without label

Note. If the front spring strut does not have a label for suspension identification, the type of suspension can be identified from the part number in the Electronic Parts Catalogue.

32 00... Information on replacing steering gear after accident damage

Situation

In the event of accidents or driving conditions similar to accidents, shock-like loads can cause different types of damage to steering gears. When a steering gear is externally undamaged, it is sometimes only possible to identify damage with great difficulty and with great effort. However, damage of this nature poses an unacceptable risk to the vehicle because it can result in failure of the steering system.

Because of the disproportionate amount of effort involved, it is generally not sensible to check thoroughly all the individual components of the steering gear and as an alternative it is necessary to take into account other components which can be checked more easily.

Procedure

The steering gear must be replaced if one or more of the following points apply

1. Visible or noticeable damage to the steering gear Version with electric steering gear (EPS): Examine in particular the control unit with all plug connections for damage and hairline cracks.
2. Unacceptable torque increase and jamming when the steering gear is turned from lock to lock (without hydraulic/electrical assistance)
3. Permissible tolerances exceeded during axle/wheel alignment (include alignment record with invoice/report if necessary)
4. Fire damage
5. Damage, permanent deformation or fractures to: Wheel rims in the event of a negative result from the wheel/axle alignment check Spring struts, steering knuckles, wheel carriers Control arms struts or diagonal members or stabilizers with this function Body-side screwing/bolting points for wheel guide/control components Front axle support Pitman arms Tie rods Steering gear fixtures Steering Column

32 00 155 KDS chassis/wheel alignment check with ride height measurement without vehicle load

Note. Read and comply with GENERAL INFORMATION AND DEFINITIONS . Read and comply with GENERAL CHASSIS DEFINITION .

1. Check compliance with «TEST CONDITIONS»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-test-conditions-for-chassiswheel) , repair vehicle if necessary.
2. If necessary, prepare vehicle hoist.
3. Drive vehicle onto vehicle hoist. NOTE: The front and rear wheels must be positioned centrally on the rotary and sliding plates.
4. Remove locking pins from both rotary and sliding plates.

Scheme 146

Scheme 147

Scheme 148

1. Attach quick-clamping holder to vehicle and remove clamping levers in area of front wheels
2. Attach pickup to quick-clamping holder, align using bubble level and connect to turntables
3. If necessary, attach spoiler adapter.

Scheme 149

1. If necessary, switch on chassis alignment system.
2. Enter customer and vehicle data
3. Identify «CHASSIS VERSION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-identification-of-suspension-without) and select vehicle
4. Enter tire inflation pressure and tread depth
5. Measure and enter «RIDE-LEVEL HEIGHT OF VEHICLE»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-repair-e90__31-33-095-measuring-ride-level-height)
6. Install brake tensioner.

Scheme 150

E81, E82, E87, E88, E90, E91, E92, E93

Note. After the drive-in routine, reconnect the pickups to the quick-clamping holders/quick-clamping units, align using the bubble levels and secure in place.

1. Perform input measurement in accordance with equipment manufacturer's instructions.
2. Compare nominal values See «WHEEL ALIGNMENT E90, E91/ROUGH ROAD PACKAGE»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) ; «WHEEL ALIGNMENT E90, E91, E92, E93/LOW-SLUNG SPORT SUSPENSION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) or «WHEEL ALIGNMENT E90, E91, E92, E93/SERIES»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) with actual values.

Only in event of customer complaint (e.g. poor driving performance)

Slacken all screws/bolts (front axle support to engine support or body) and then retighten to specified torque.

Refer to Lowering front axle support.

If necessary, adjust FRONT AXLE AND REAR AXLE

1. Perform output measurement in accordance with equipment manufacturer's instructions.
2. Save and print out test record.
3. Carry out steering angle sensor adjustment/alignment for active steering See «6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) or «3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active)
4. Insert locking pins into both rotary and sliding plates
5. Remove chassis/wheel alignment system
6. Drive vehicle off vehicle hoist
7. If necessary, carry out «ALIGNMENT OF ACC SENSOR»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active)

32 00 150 KDS chassis/wheel alignment check with vehicle load up to design position

Note. Read and comply with GENERAL INFORMATION AND DEFINITIONS . Read and comply with GENERAL CHASSIS DEFINITION .

1. If necessary, prepare vehicle hoist.
2. Drive vehicle onto vehicle hoist. NOTE: The front and rear wheels must be positioned centrally on the rotary and sliding plates.
3. Remove locking pins from both rotary and sliding plates.

1. Attach quick-clamping holder to vehicle and remove clamping levers in area of front wheels
2. Attach pickup to quick-clamping holder, align using bubble level and connect to turntables
3. If necessary, attach spoiler adapter.
4. If necessary, switch on chassis alignment system.
5. Enter customer and vehicle data
6. Identify «CHASSIS VERSION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-identification-of-suspension-without) and select vehicle
7. Enter tire inflation pressure and tread depth
8. Move «VEHICLE INTO DESIGN POSITION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-moving-vehicle-into-design)
9. Install brake tensioner.

E81, E82, E84, E87, E88, E90, E91, E92, E93

Note. After the drive-in routine, reconnect the pickups to the quick-clamping holders/quick-clamping units, align using the bubble levels and secure in place.

1. Perform input measurement in accordance with equipment manufacturer's instructions.
2. Compare nominal values See «3200... MOVING VEHICLE INTO DESIGN POSITION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-moving-vehicle-into-design) ; «WHEEL ALIGNMENT E90, E91, E92, E93/LOW-SLUNG SPORT SUSPENSION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) ; «WHEEL ALIGNMENT E90, E91, E92, E93/SERIES»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) ; «WHEEL ALIGNMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) or «WHEEL ALIGNMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) with actual values.

Only in event of customer complaint (e.g. poor driveability)

Slacken all screws/bolts (front axle support to engine support or body) and then retighten to specified torque.

Refer to LOWERING FRONT AXLE SUPPORT .

If necessary, adjust front axle and rear axle See 3200620 ADJUSTING REAR AXLE or 3200610 ADJUSTING TOE-IN AND CAMBER ON FRONT AXLE (M3)

1. Perform output measurement in accordance with equipment manufacturer's instructions.
2. Save and print out test record.
3. Carry out steering angle sensor adjustment/alignment for active steering See «6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) or «3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active)
4. Insert locking pins into both rotary and sliding plates
5. Remove chassis/wheel alignment system
6. Drive vehicle off vehicle hoist
7. If necessary, carry out alignment of ACC sensor

32 00... Moving vehicle into design position

Necessary preliminary tasks

1. Move «VEHICLE INTO NORMAL POSITION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-moving-vehicle-into-normal)

1. Version with air spring system: Remove ignition key If necessary, pull fuse for air supply system control unit
2. Add/distribute weights in area of spring struts until the vehicle ride height is within the tolerance (refer to Technical Data See «REAR AXLE - RIDE HEIGHT»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#rear-axle-technical-data-e90) or «REAR AXLE - RIDE HEIGHT E90»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#rear-axle-technical-data-e90) ). Measure «RIDE-LEVEL HEIGHT OF VEHICLE»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-technical-data-e90)

32 00... Moving vehicle into normal position

Necessary preliminary tasks

1. Check compliance with «TEST CONDITIONS»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-test-conditions-for-chassiswheel) , bring vehicle to a stop if necessary.

1. Version with air spring system: Carry out ride-height calibration
2. Check vehicle interior and luggage compartment (incl. luggage compartment recess) for load, unload vehicle if necessary Introduce DIN load (refer to «TECHNICAL DATA»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-technical-data-e90) ) into vehicle
3. Determine NOTE: If the vehicle ride height is not inside the tolerance (refer to Technical Data See «REAR AXLE - RIDE HEIGHT»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#rear-axle-technical-data-e90) ; «REAR AXLE - RIDE HEIGHT E90»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#rear-axle-technical-data-e90) ; «FRONT AXLE - RIDE HEIGHT»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-technical-data-e90) or «FRONT AXLE - RIDE HEIGHT»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-technical-data-e90) ), the vehicle must be repaired (coil spring/leakage).

Scheme 151

Scheme 152

32 00... Performing rim runout compensation

Note. Rim runout compensation involves electronically recording the lateral runout of the rim and the possible clamping error of the quick-clamping unit for one wheel rotation and compensating the toe and camber for measurement/alignment.

Raise body.

Perform rim runout compensation in accordance with equipment manufacturer's instructions.

Compress/deflect car.

00...... Raising vehicle with trolley jack

1. Use only BMW-distributed/approved trolley jacks which have rubber plate contact points.
2. Trolley jacks must be regularly serviced and always checked for functional reliability before they are used!
3. Check the rubber plate on the trolley jack prior to each use, replacing if necessary.

Scheme 153

1. Car jacking point on reinforcement strut (rear-wheel drive)
2. Side car jacking points
3. Rear differential

Scheme 154

Risk of damage: It is not permitted to raise the vehicle at the rear differential cover!

1. Car jacking point on front axle carrier (all-wheel drive)

Scheme 155

Scheme 156

A wheel/chassis alignment check See TED-TED-TDMUC3100-E90HOEHEB1S1 FRONT AXLE - RIDE HEIGHT or 3200155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD must be carried out after the following work

1. Release of following screw/bolt connections: Camber arm to rear axle carrier/wheel carrier Trailing arm to rear axle carrier/wheel carrier Guide arm to rear axle carrier Toe arm to rear axle carrier/wheel carrier Control arm to rear axle carrier
2. Replacement of following parts: Rear axle carrier Camber arm/rubber mount/ball joint Trailing arm/rubber mount Guide arm Wheel carrier/rubber mount/ball joint Toe arm Control arm

00 Risk of injury if oil comes into contact with eyes and skin

Danger of injury!

Contact with eyes or skin may result in injury!

Possible symptoms are

1. Impaired sight
2. Irritation of the eyes
3. Reddening of the skin
4. Rough and cracked skin

Protective measures/rules of conduct

1. Wear protective goggles
2. Wear oil-resistant protective gloves
3. Observe country-specific safety regulations

First aid measures

1. Eye contact: Rinse eyes immediately with plenty of water for at least 15 minutes; if available, use an eye-rinsing bottle. If irritation of the eyes persists, consult a doctor.
2. Skin contact: Wash off with soap and water immediately. If irritation persists, consult a doctor. NOTE: Do not use solvents/thinners.

00 Safety information for working on vehicles with automatic engine start-stop function (MSA)

Observe safety precautions when working on MSA vehicles

Before carrying out practical work on the engine, always ensure that the MSA functionality is deactivated so as to prevent automatic engine starting while work is being carried out in the engine compartment.

MSA function is deactivated by

Scheme 157

Scheme 158

1. Deactivate MSA by means of button (1) in passenger compartment
2. Open seat belt buckle and driver's door
3. Open engine bonnet/hood and ensure that engine hood/bonnet contact is not in workshop mode Workshop mode A = 10 mm Basic setting (engine hood/bonnet open) B = 7 mm To make sure that the engine hood/bonnet contact is at the basic setting, if necessary press the hood/bonnet contact up to the limit position before starting work and slowly release.

When working with diagnosis tools

1. Observe instructions in diagnosis tool

00 Safety instructions for handling oil

Recycling

Observe country-specific waste-disposal regulations.

Measures if oil is unintentionally released

1. Personal precautionary measures: Danger of slipping! Keep non-involved persons away from the work area. Wear personal protective clothing/equipment.
2. Environmental protection measures: Prevent oil from draining into drain channels, sewerage systems, pits, cellars, water and the ground.
3. Limiting spread: Use oil blocks to prevent the surface spread of oil.
4. Cleaning procedure: Bind and dispose of escaped oil with nonflammable absorbents. NOTE: Do not flush oil away with water or aqueous cleaning agents.

32 00... Test conditions for chassis/wheel alignment check

Observe the following test conditions prior to the chassis/wheel alignment check

1. Correct and identical rim and tire sizes.
2. Correct tread depth. The tread depth for each axle may differ from left to right by max. 1-2 mm.
3. Correct tire inflation pressure (see instruction plate on car).
4. Wheel bearing clearance OK
5. Steering backlash OK
6. Condition of suspension and shock absorbers OK: Visually inspect for breakage, etc.
7. Cars with ride level control: Pull fuse of air supply unit so that there is no controlling down or up.

Situation

In the event of accidents or driving conditions similar to accidents, shock-like loads can cause different types of damage to steering gears. When a steering gear is externally undamaged, it is sometimes only possible to identify damage with great difficulty and with great effort. However, damage of this nature poses an unacceptable risk to the vehicle because it can result in failure of the steering system.

Because of the disproportionate amount of effort involved, it is generally not sensible to check thoroughly all the individual components of the steering gear and as an alternative it is necessary to take into account other components which can be checked more easily.

Procedure

The steering gear must be replaced if one or more of the following points apply

1. Visible or noticeable damage to the steering gear Version with electric steering gear (EPS): Examine in particular the control unit with all plug connections for damage and hairline cracks.
2. Unacceptable torque increase and jamming when the steering gear is turned from lock to lock (without hydraulic/electrical assistance)
3. Permissible tolerances exceeded during axle/wheel alignment (include alignment record with invoice/report if necessary)
4. Fire damage
5. Damage, permanent deformation or fractures to: Wheel rims in the event of a negative result from the wheel/axle alignment check Spring struts, steering knuckles, wheel carriers Control arms struts or diagonal members or stabilizers with this function Body-side screwing/bolting points for wheel guide/control components Front axle support Pitman arms Tie rods Steering gear fixtures Steering Column

This guideline is binding for all accident repairs to BMW and MINI vehicles.

32 11... Notes on checking steering backlash on vehicles with rack-and-pinion steering (with front axle raised)

Note. When the front axle is raised, the applied force is distributed via the tie rod into horizontal and vertical forces. If there is now no electric or hydraulic assistance, the forces created cause the thrust member (1) to be unloaded against the spring (2). The play created in this way is incorrectly referred to as steering backlash.

3 = Rack

Scheme 159

Note. For checking purposes, the steering gear must be pressurized by means of electric or hydraulic assistance.

1. Hydraulic steering assistance: Start engine
2. Electro-hydraulic steering assistance: Switch ignition on
3. Electric steering assistance: Turn on ignition and start engine

32 11 100 Replacing gaiter for steering gear on left or right

Necessary preliminary tasks

1. Except M3: Remove front assembly underside protection

Clean tie rod.

Release band clamp (1).

Mark screw-in depth of tie rod (2) or count thread turns.

Release screw (3).

Twist tie rod (2) out of tie rod end (4).

Installation

Replace microencapsulated screw.

Tightening torque 32 21 2AZ .

Scheme 160

Release EAR CLAMP (1).

Detach gaiter (2) from tie rod (3).

Installation

Clean rack and check surface for damage (e.g. by corrosion).

Grease rack (refer to STEERING AND WHEEL ALIGNMENT - OPERATING FLUIDS ).

Clean tie rod and apply grease to taper.

This ensures that the gaiter is not rotated when the tie rod is rotated.

Scheme 161

After installation

1. Perform chassis alignment check See «3200150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-150-kds-chassiswheel-alignment) or «3200155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-155-kds-chassiswheel-alignment)
2. Carry out steering angle sensor adjustment/adjustment for active steering See «6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) or «3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active)

32 13 006 Bleeding power steering unit

Note. To avoid mix-ups when filling with hydraulic fluid, mark the fluid reservoirs or their caps with identification marks.

ATF Automatic transmission fluid

CHF Pentosin CHF11S

Scheme 162

1. Thoroughly clean fluid reservoir and its immediate surroundings
2. Check and correct fill level NOTE: The fill level can come to rest above the "MAX" mark when the engine is at normal operating temperature. This is dictated by the design in that the marking on the dipstick is referred to a fluid temperature of 20°C. With the engine at normal operating temperature (approx. 50-60°C fluid temperature) adjust a fill height 10 mm above the "MAX" mark. Do not under any circumstances draw off the fluid to the "MAX" mark when the engine is at normal operating temperature. Hydraulic fluid: See «STEERING AND WHEEL ALIGNMENT - OPERATING FLUIDS»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-operating-fluids)
3. Start engine
4. Turn steering wheel left and right twice in each case up to full lock; if necessary, top up hydraulic fluid (e.g. if hydraulic system is completely drained)
5. Move steering wheel to straight-ahead position and turn off engine
6. Check and correct fill level with engine stopped
7. Check hydraulic system for leaks

Situation

In the event of accidents or driving conditions similar to accidents, shock-like loads can cause different types of damage to steering gears. When a steering gear is externally undamaged, it is sometimes only possible to identify damage with great difficulty and with great effort. However, damage of this nature poses an unacceptable risk to the vehicle because it can result in failure of the steering system.

Because of the disproportionate amount of effort involved, it is generally not sensible to check thoroughly all the individual components of the steering gear and as an alternative it is necessary to take into account other components which can be checked more easily.

Procedure

The steering gear must be replaced if one or more of the following points apply

1. Visible or noticeable damage to the steering gear Version with electric steering gear (EPS): Examine in particular the control unit with all plug connections for damage and hairline cracks.
2. Unacceptable torque increase and jamming when the steering gear is turned from lock to lock (without hydraulic/electrical assistance)
3. Permissible tolerances exceeded during axle/wheel alignment (include alignment record with invoice/report if necessary)
4. Fire damage
5. Damage, permanent deformation or fractures to: Wheel rims in the event of a negative result from the wheel/axle alignment check Spring struts, steering knuckles, wheel carriers Control arms struts or diagonal members or stabilizers with this function Body-side screwing/bolting points for wheel guide/control components Front axle support Pitman arms Tie rods Steering gear fixtures Steering Column

This guideline is binding for all accident repairs to BMW and MINI vehicles.

32 13 060 Removing and installing (replacing) power steering gear (M3)

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir
2. Remove «REINFORCEMENT PLATE»(/bmw/m3/e90-2007-2013/remont/axle-shafts/#front-axle-repair-e90__31-10-010-removing-and-installingreplacing)
3. Remove both «TIE ROD ENDS FROM SWIVEL BEARING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-21-151-replacing-left-or)
4. Replacement only: Remove both «TIE ROD ENDS FROM TIE ROD»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-21-151-replacing-left-or)
5. Remove «LOWER STEERING SPINDLE FROM POWER STEERING GEAR»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-070-removing-and-installingreplacing)

Release nut (1) for return line (2).

Installation

Replace self-locking nut.

Scheme 163

Unscrew nut (1) and bolts (2).

Disconnect pressure line (3) from front axle carrier holder.

Installation

Replace self-locking nut.

Scheme 164

Release screws (1).

Fold both holders (2) downwards.

Installation

Scheme 165

If necessary, remove heat shield from power steering gear.

Disconnect plug connection (1) on Servotronic electrohydraulic converter.

Release banjo bolts (2).

Disconnect pressure line (3) and return line (4) from power steering gear.

Installation

Replace all sealing rings.

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.

Scheme 166

Release nuts and remove screws (1) towards bottom.

Remove power steering gear towards front.

Installation

Replace screws and nuts.

Tightening torque 32 00 1AZ .

Scheme 167

After installation

1. Fill and bleed «HYDRAULIC SYSTEM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-13-006-bleeding-power-steering)
2. Check pipe connections for leaks
3. Perform chassis alignment check See «3200150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-150-kds-chassiswheel-alignment) or «3200155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-155-kds-chassiswheel-alignment)
4. Carry out «STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering)

32 10... Teaching in end stop software for electric steering gear (EPS)

Note. The end stop software must be taught in

1. after the steering gear is replaced
2. after programming/coding

Connect vehicle to BMW diagnosis system.

Select and perform end stop under Service functions.

32 41... Instructions for removing and installing ear clips

Note. The work steps are show on assorted components.

Ear clip must always be replaced.

To remove an ear clip, place special tool 32 1 260 PLIERS at right angles to ear and cut ear open.

Scheme 168

The ear clip can be fitted not only axially but also radially after the hook fastener has been opened.

Scheme 169

Attach hook fastener and press ear together with special tool 32 1 260 PLIERS .

Scheme 170

The diagonal cutting pliers of special tool 32 1 260 PLIERS can be used in areas which are difficult to access.

Scheme 171

Scheme 172

32 21 231 Replacing (removing and installing) left or right tie rod

Necessary preliminary tasks

1. Remove «TIE ROD END FROM SWIVEL BEARING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-21-151-replacing-left-or)
2. Remove «GAITER FROM STEERING GEAR»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-11-100-replacing-gaiter-for) and slide back

Release joint (1) with special tool 32 3 160 SOCKET WRENCH on steering gear rack.

Tightening torque 32 21 1AZ .

Installation

Clean rack.

Check surface of rack for damage (e.g. corrosion).

Scheme 173

Power steering gear only: Grease rack (refer to STEERING AND WHEEL ALIGNMENT - OPERATING FLUIDS ).

On replacement, assemble new part with gaiter

1. Determine measurement (A) to simplify following adjustment of front axle

Installation

Slacken clamping screw (1) and screw off tie rod end.

Slide gaiter with ear clamp and band clamp on tie rod.

Screw in tie rod end to measurement (A).

Tightening torque 32 21 2AZ .

Scheme 174

After installation

1. Only if replacing/removing tie rod end: Perform chassis alignment check See «3200150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-150-kds-chassiswheel-alignment) or «3200155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-155-kds-chassiswheel-alignment)
2. Carry out steering angle sensor adjustment/adjustment for active front steering See «6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) or «3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active)

32 21 151 Replacing left or right tie rod end

Note. If the tie rod end to tie rod screw/bolt connection is released, it is necessary after reinstallation to carry out a wheel/chassis alignment check.

Necessary preliminary tasks

1. Remove «FRONT WHEEL»(/bmw/m3/e90-2007-2013/remont/wheel-tire-system/#wheel-and-tires-repair-e90__36-10-300-remove-or-install)

Release nut (1); if necessary, grip at Torx socket.

Remove tie rod end (2) from swivel bearing.

Installation

Keep tie rod end to swivel bearing connection clean and free from oil and grease.

Replace self-locking nut.

Tightening torque 32 21 3AZ .

Scheme 175

Determine measurement (A) to simplify following adjustment of front axle.

Release bolt (1).

Screw off tie rod end; if necessary, grip tie rod with open-end wrench.

Installation

Check GAITER for damage, replace if necessary.

Screw tie rod end onto tie rod to measurement (A).

Tightening torque 32 21 2AZ .

After installation

1. Perform «CHASSIS ALIGNMENT CHECK»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-150-kds-chassiswheel-alignment)
2. Carry out «STEERING ANGLE SENSOR ADJUSTMENT/ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-00-155-kds-chassiswheel-alignment)

32 31 020 Removing and installing/replacing lower section of steering column trim

Necessary preliminary tasks

1. Remove «UPPER SECTION OF STEERING COLUMN TRIM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-003-removing-and-installingreplacing)
2. Move steering column into "top" and "extended" position and do not secure with adjusting lever

Press detent lugs outwards a little and unclip steering column trim downwards.

Installation

Align steering column trim by means of detent lugs to steering column and press up as far as it will go.

Press steering column trim on both sides together a little and then press upwards completely until detent lugs snap into place.

Scheme 176

Check installation position, correct if necessary.

32 31 070 Removing and installing/replacing lower section of steering shaft

Necessary preliminary tasks

1. Remove «UNIVERSAL JOINT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-201-replacing-universal-joint)

Release clamping screw (1).

Detach steering spindle lower section (2) from power steering gear.

Installation

Clean thread to remove all remnants of screw securing adhesive.

Lower section of steering spindle can only be attached in one position to the power steering gear.

Replace clamping screw.

Clamping screw must rest in groove of power steering gear.

Scheme 177

No kinking permitted!

Tightening torque 32 31 1AZ .

After installation

1. Turn steering wheel in both directions to full lock. The airbag warning lamp must not light up in the process.
2. Carry out «STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) .
3. Check directional stability of car.

32 31 082 Removing and installing/replacing steering angle sensor

Note. Steering angle sensor is integrated in the STEERING COLUMN STALK FIXTURE .

After installation

1. Replacement only: Carry out vehicle programming and encoding.
2. Carry out steering angle sensor adjustment/adjustment for active front steering . See «6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) or «3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active) .

32 31 090 Removing and installing/replacing steering column

Note. Cars produced up to 12/2004 have a steering column with a 3-pin plug connection for electric steering column locking. Cars produced after this date have a 4-pin plug connection. Spare parts are offered for both variants.

Necessary preliminary tasks

1. Remove footwell heating duct
2. Remove steering column trims . See «3231003 REMOVING AND INSTALLING/REPLACING UPPER SECTION OF STEERING COLUMN TRIM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-003-removing-and-installingreplacing) or «3231020 REMOVING AND INSTALLING/REPLACING LOWER SECTION OF STEERING COLUMN TRIM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-020-removing-and-installingreplacing) .
3. Disconnect all plug connections at fixture for steering column stalk
4. Disconnect plug connection on electric steering column lock
5. Remove wiring harnesses from steering column
6. Slide sleeve for steering spindle on steering column upwards.

This operation is described in Replacing steering spindle sleeve

Installation

Press sleeve into bulkhead and check installation position, correct if necessary.

Release clamping screw (1) on steering column (2).

Installation

Tightening torque, see 32 31 1AZ in 32 31 STEERING COLUMN .

Clean thread to remove all remnants of screw securing adhesive.

Replace clamping screw.

Clamping screw must rest in groove of steering column.

No kinking permitted!

Scheme 178

Release screws (1).

Tightening torque, see 32 31 2AZ in 32 31 STEERING COLUMN .

Secure steering column against falling out.

Unfasten screws (2).

Tightening torque, see 32 31 2AZ in 32 31 STEERING COLUMN .

Remove steering column towards rear.

Installation

Prior to installing, slide sleeve onto steering column.

Scheme 179

Replacement

1. Modify airbag unit
2. Modify steering wheel
3. Modify fixture for steering column switch

After installation

1. Replacement: Lock and unlock electric steering column lock and clear fault memory in Car Access System (CAS).
2. Replacement: Turn steering wheel in both directions to full lock. The airbag warning lamp must not light up in the process.
3. Carry out steering angle sensor adjustment /adjustment for active front steering.
4. Check directional stability of car.

32 31 003 Removing and installing/replacing upper section of steering column trim

After installation

1. Read out fault memory and delete entries

Move steering column in "bottom" and "extended" position.

Scheme 180

Tilt steering column trim (1) towards front.

Unclip steering column gap cover (2) from steering column trim.

Installation

Tilt steering column trim towards rear, align by way of locks to lower section (of steering column trim) and press down.

Scheme 181

Replacement

1. E88, E93: Remove hands-free microphone from steering column trim.

32 31 241 Replacing adjusting lever for steering column

Necessary preliminary tasks

1. Remove «STEERING COLUMN»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-090-removing-and-installingreplacing) (except on E84)

If necessary, remove cable duct from steering column.

Unclip adjusting lever.

Installation

Align adjusting lever to steering column and attach straight to prevent the locks from being damaged.

Check locks after attachment, replace adjusting lever if necessary.

Scheme 182

32 31 102 Replacing steering spindle sleeve

Necessary preliminary tasks

1. Remove «LOWER SECTION OF STEERING SPINDLE»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-31-070-removing-and-installingreplacing)

Push steering spindle into steering column.

Pop sleeve (1) out of bulkhead, press together and remove.

Scheme 183

Installation

Detach pull-in lug from sleeve and lubricate gap with silicone grease.

Press sleeve together, slide onto steering column, align to opening in bulkhead and insert in bulkhead.

Note. To prevent the sleeve from slipping out and to avoid complaints by the customer about noise, make sure that sealing lip (1) on engine compartment side rests against bulkhead all round and sealing lip (2) in inside the car rests against the damping.

Scheme 184

Installation

Scheme 185

After installation

1. Carry out steering angle sensor adjustment See «6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__61-31-996-carrying-out-steering) or «3210005 ADJUSTMENT FOR ACTIVE FRONT STEERING»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-10-005-adjustment-for-active) /adjustment for active front steering

32 31 201 Replacing universal joint for upper section of steering shaft

Necessary preliminary tasks

1. Remove «INTAKE FILTER HOUSING»(/bmw/m3/e90-2007-2013/remont/fuel-system/#fuel-system-repair-e90__13-71-000-removing-and-installingreplacing)
2. Remove left or right microfilter housing lower section See «6431062 REMOVING AND INSTALLING/REPLACING LEFT LOWER MICROFILTER HOUSING SECTION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-062-removing-and-installingreplacing) or «6431063 REMOVING AND INSTALLING/REPLACING RIGHT LOWER MICROFILTER HOUSING SECTION»(/bmw/m3/e90-2007-2013/remont/automatic-hvac-system/#heating-and-air-conditioning-repair-e90__64-31-063-removing-and-installingreplacing)
3. Remove left ignition coil cover

Disconnect plug connection (1) and remove auxiliary water pump (2) towards top from body.

Set down auxiliary water pump (2) on valve cover; if necessary, remove water hoses from hose holder(s).

Installation

Insert auxiliary water pump into body so that bearings slide correctly in associated mountings.

Scheme 186

Release clamping screws (1).

Move steering column in "top" and "extended" position.

Detach universal joint (2) first from steering column and then from lower section of steering spindle.

Installation

Clean thread to remove all remnants of screw securing adhesive.

Universal joint can only be attached in one position to steering column and lower section of steering spindle.

Replace clamping screws.

Scheme 187

Clamping screws must rest in groove of steering column or lower section of steering spindle.

No kinking permitted!

Tightening torque, see 32 31 5AZ in 32 31 STEERING COLUMN .

After installation

1. Turn steering wheel in both directions to full lock. The airbag warning lamp must not light up in the process.
2. Carry out steering angle sensor adjustment
3. Check directional stability of car

32 33 010 Removing and installing/replacing sport steering wheel

Note. Wheel/chassis alignment is not necessary after the steering wheel has been removed and installed or replaced.

Necessary preliminary tasks

1. Remove «AIRBAG UNIT»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-34-030-removing-and-installingreplacing)

Set road wheels/steering wheel to straight-ahead position.

Disconnect plug connection (1).

If necessary, disconnect plug connection (2) for steering wheel heating.

Release screw (3) and remove steering wheel (4).

Installation

Make sure connecting lead(s) is/are correctly laid.

Tightening torque 32 33 1AZ .

Scheme 188

Installation

IF NECESSARY, MODIFY SHIFT PADDLES (5)

Installation

Align sport steering wheel using markings (1) to steering column and attach.

Replacement

1. Modify «SPORT STEERING WHEEL COVER/SWITCHES»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#general-electrical-system-repair-e90__61-31-229-removing-and-installingreplacing) .

Scheme 189

65 77... Notes on scrapping BMW vehicles with gas generators (central airbag control unit, airbag system)

The gas generator is a pyrotechnic component of

1. Airbag module Driver's/passenger airbag Side airbags Head airbag Knee airbag
2. Seat belt tensioner
3. Belt buckle tensioner
4. Battery safety terminal

1 Series: E81, E82, E87, E88

3 Series: E46, E90, E91, E92, E93

5 Series: E60, E61 from build date 09/2005

6 Series: E63, E64 from build date 09/2005

X3: E83

X5: E53, E70

Z4: E85, E86

Gas generators that have not fired constitute a hazard (also to the environment)!

In accordance with accident prevention regulations and specific national regulations, gas generators must be rendered unusable before they are scrapped. This is necessary because pyrotechnical objects can cause injury if improperly activated (e.g. scrapping with flame cutters).

For vehicles mentioned above that are scheduled for scrapping, it is always essential prior to draining and further disassembly work to ensure that all the gas generators in the vehicle are fired. The fired gas generators can then be scrapped together with the vehicle.

Firing failure

If correct triggering is not possible, the relevant components must (while observing the safety regulations for handling airbag system components) be removed and disposed of by special disposal companies!

If a triggering operation has failed

1. Disconnect the triggering device from the battery and
2. approach the vehicle only after a few minutes

The components of an airbag system must always be disposed of. Such components must not be sold on as used parts.

Ignition

Triggering of the gas generators may only be carried out by expert personnel and under the supervision of a responsible person. Other standard accident prevention regulations (safety goggles, ear defenders etc.) must also be observed.

The gas generators must be fired from the outside in the vehicle scheduled for scrapping with the doors closed but with the tailgate, door windows and sunroof open. To fire the gas generators, use the BMW-developed triggering device with the corresponding cables.

1. Vehicles with central airbag control unit (all airbags, seat belt tensioners, battery safety terminal)

1. 1.1 Expose «AIRBAG CONTROL UNIT»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#audio-navigation-anti-theft-restraint-repair-e90__65-77-016-removing-and-installingreplacing) .
2. 1.2 Connect "Airbagmaster". For subsequent procedure, refer to SEDA operating instructions.

72 12... Procedure after airbag triggering as result of an accident

Check and/or replace following components after airbag triggering

Satellites (control unit + sensor)

1. Components Satellite, A-/B-pillar, left/right Satellite, front door Satellite, rear seat Satellite, driver's/front passenger seat Satellite, vehicle center
2. Procedure Inspect visually for mechanical damage Read fault memory Disconnect battery and observe waiting period Rectify faults Connect battery and observe waiting period (at least 10 seconds) Delete fault memory Turn off ignition and wait at least 2 minutes (no consumers may be switched on during this period such as e.g. inside lights, radio, etc.) Switch on ignition (wait at least 10 seconds) Clear fault memory and if necessary rectify faults

Cables and plugs

1. Components and procedure Check cables and plugs for damage, replace if necessary. (e. g. corrosion, correct engagement, bent pin)

Belt system

1. Components Retractor mechanism Belt buckle tensioner Seatbelt height adjustment Anchor fitting tensioner
2. Procedure Check components, replace if necessary

Seats

1. Components Seat Airbag module Active head restraint
2. Procedure Check seats (function check of seat mechanism), replace if necessary Check seat screw/bolt connections Replace gas generator, active head restraint system If the severity of the impact has not caused any other damage to the seat, only the triggered gas generator needs to be replaced. External feature: The triggered head restraint is folded forwards and engaged. The repair work can be carried out in the car with the rear panel removed. The entire system can be pushed back into its original position and the new gas generator installed. The gas generator can be replaced up to 5 times. Replace airbag module and, if necessary, seat cover with padding

Driver's airbag

1. Components Airbag module Steering Wheel Steering column (if damaged)
2. Procedure Replace faulty components Replace steering wheel

Front-passenger airbag

1. Components Airbag module Trim, instrument panel Supporting tube (if damaged)
2. Procedure Check components; replace if necessary

Side airbag, front/rear

1. Components Airbag module Door panel Door in white Seat
2. Procedure Check components; replace if necessary

Head airbag

1. Components Airbag module Trim, A-pillar Roofliner Trim, B-pillar (if damaged) Trim, C-pillar (if damaged) Connection/mounting (on side frame)
2. Procedure Check components; replace if necessary

Knee airbag

1. Components Panel (driver's side) Lower section of glovebox Active knee protector (driver's and passenger sides)
2. Procedure Replace faulty components

Passive knee protector

1. Components Trim panels (driver's side) Glovebox incl. knee protector (passenger side)
2. Procedure Replace faulty components Check fastening elements

32 34 020 Removing and installing/replacing airbag unit

1. Comply with «SAFETY REGULATIONS»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__72-00-safety-regulations-for-handling) for handling components with gas generators.
2. Do not exert any force on the airbag unit.
3. Use only specified tools for releasing the airbag unit.

Note. Incorrect handling may result in triggering of the airbag unit and thereby cause serious injury.

Necessary preliminary tasks

1. Disconnect «BATTERY NEGATIVE LEAD»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#general-electrical-system-repair-e90__61-20-900-disconnecting-and-connecting)

Insert Torx screwdriver (T20) roughly straight from below into opening on reverse side of steering wheel up to stop (approx. 5.5 cm).

Swing Torx screwdriver (T20) with handle sideways until airbag unit is unlocked.

Repeat procedure on other side.

Installation

Make sure electrical lead is correctly positioned.

Scheme 190

Snap airbag unit with uniform pressing force plane-parallel in direction of steering column shaft into steering wheel.

Tilt airbag unit towards rear.

Disconnect plug connection and remove airbag unit.

Scheme 191

32 34 030 Removing and installing/replacing airbag unit (sport steering wheel)

1. Comply with «SAFETY REGULATIONS»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__72-00-safety-regulations-for-handling) for handling components with gas generators.
2. Do not exert any force on the airbag unit.
3. Use only specified tools for releasing the airbag unit.

Note. Incorrect handling may result in triggering of the airbag unit and thereby cause serious injury.

Necessary preliminary tasks

1. Disconnect «BATTERY NEGATIVE LEAD»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#general-electrical-system-repair-e90__61-20-900-disconnecting-and-connecting)
2. Remove shift paddles for automatic transmission

Insert Torx screwdriver (T25) at an angle into concealed opening on reverse side of steering wheel until a spring resistance is felt (approx. 1.5 cm).

Increase pressure on spring leg (concealed) using Torx screwdriver (T25) until airbag unit is unlocked.

Repeat procedure on other side.

Installation

Make sure electrical leads are correctly positioned.

Scheme 192

Snap airbag unit with uniform pressing force plane-parallel in direction of steering column shaft into steering wheel.

Tilt airbag unit forwards.

Disconnect plug connections and remove airbag unit.

Installation

Connect plugs to connections of same color on airbag unit.

Scheme 193

72 00... Safety regulations for handling components with gas generators

It is essential to comply with the regulations as specified in the law relating to the use of explosives when working on airbag units and seat belt tensioners.

Airbags, seat belt tensioners etc. are pyrotechnical objects. Pyrotechnical objects are assigned to different danger classes on the basis of the quantity of propellant that they contain. The assignment can be ascertained from the identification marking on the product

This applies in particular to the following components

1. Airbag modules (driver's/front passenger airbags, side airbags)
2. Buckle/belt tensioner
3. Head airbag
4. Active knee protection
5. Active head restraint
6. Safety battery terminal

1. Regulations

The regulations quoted in the following refer to the Federal Republic of Germany.

In all other countries, the relevant legislation and regulations must be observed in each case. Country-specific legal regulations that go beyond this information or court decisions based thereon must be followed in each case or given precedence over these regulations.

The following components used by BMW

1. Pyrotechnical restraint systems are subject to danger class PT1
2. Gas generators are pyrotechnical objects belonging to danger class T1.

Handling, transporting and storing non-fired gas generators are subject to the "Explosive Materials Act" (law relating to the use of explosives dated 13/09/1976).

The relevant trade supervisory authority must be notified at least 2 weeks before pyrotechnical objects are handled for the first time. Here the relevant authority must be notified in writing of the person responsible (e.g. dealership owner, holder of general power of attorney or if necessary workshop supervisor). A certificate of qualification, i.e. specific training, is not required for the person responsible.

2. Disassembly and assembly

1. Inspection, testing and installation work may only be carried out by expert trained personnel in BMW Service.
2. Work on components of the airbag system should only ever be carried out with the battery disconnected, the negative terminal post covered and the plug connection of the cable leading to the gas generator disconnected. If only the battery is disconnected, the following prescribed waiting period must be observed without fail: 30 minutes for vehicles up to 9/93; 1 minute for vehicles from 9/93
3. In the event of breaks in work, a component with a gas generator that has been removed must be secured against access by other persons.
4. Individual components must never be repaired. Instead, always replace them.
5. Do not treat airbag system components with cleaning agents or grease.
6. Components of the airbag system must not be exposed to temperatures in excess of 75°C.
7. Airbag system components, including electronic diagnostic components, which have been dropped from heights in excess of 0.5 m must not be reinstalled in the vehicles.
8. Before installing, subject components such as housing, connector pins etc. (including electronic diagnostic components) to a visual inspection for damage and replace if necessary.
9. Airbag system components may only be electrically tested while they are installed and only with the BMW ISTA.
10. Danger of injury: The airbag module may only be set down with the airbag itself facing upwards. Otherwise the generator will be thrown upwards if it is fired.
11. Do not point the firing pellet of a gas generator at other persons.
12. Components with gas generators must not be fired while they are removed. They must be disposed of by special disposal companies or returned to BMW in the packaging of the new components.
13. When carrying out straightening and welding work with an electric welder: Disconnect battery Cover negative terminal (post)
14. Avoid all contact with the skin when removing a fired airbag module - wear gloves. Wash with water after contact with the skin.

3. Transport

1. Components with gas generators must be sent off in the packaging of the new components.

4. Storage

1. Observe the regulations of the relevant trade supervisory authority and the applicable national regulations.

Using contaminated equipment to add fluid may introduce dirt particles into the fluid reservoir and significantly reduce the service life of the power steering system. Do not use any filler funnels or similar!

The fill level may only be checked or adjusted when the engine is stopped! The fluid temperature should be approx. 20°C here.

Ensure that the cap is fully screwed in prior to the fill level check.

Note. To avoid mix-ups when filling with hydraulic fluid, mark the fluid reservoirs or their caps with identification marks.

ATF Automatic transmission fluid

CHF Pentosin CHF11S

1. Thoroughly clean fluid reservoir and its immediate surroundings
2. Check and correct fill level NOTE: The fill level can come to rest above the "MAX" mark when the engine is at normal operating temperature. This is dictated by the design in that the marking on the dipstick is referred to a fluid temperature of 20°C. With the engine at normal operating temperature (approx. 50-60°C fluid temperature) adjust a fill height 10 mm above the "MAX" mark. Do not under any circumstances draw off the fluid to the "MAX" mark when the engine is at normal operating temperature. Hydraulic fluid: «STEERING AND WHEEL ALIGNMENT - OPERATING FLUIDS»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-operating-fluids)
3. Start engine
4. Turn steering wheel left and right twice in each case up to full lock; if necessary, top up hydraulic fluid (e.g. if hydraulic system is completely drained)
5. Move steering wheel to straight-ahead position and turn off engine
6. Check and correct fill level with engine stopped
7. Check hydraulic system for leaks

Note. The work steps are show on assorted components. Ear clip must always be replaced.

To remove an ear clip, place special tool 32 1 260 PLIERS at right angles to ear and cut ear open.

The ear clip can be fitted not only axially but also radially after the hook fastener has been opened.

Attach hook fastener and press ear together with special tool 32 1 260 PLIERS .

The diagonal cutting pliers of special tool 32 1 260 PLIERS can be used in areas which are difficult to access.

32 41... Instructions for using special tool 32 4 000

Depending on the pressure hose connection on the pump, the special tool 32 4 000 must be assembled.

1 = Connection, pump

2 = Connection, steering gear

Scheme 194

Pressure hose connection to pump with M14 x 1.5 banjo bolt

Mount special tool 32 4 000 DEVICE with banjo bolt (1) M14 x 1.5 and 2 sealing rings to special tool 32 4 000.

Mount special tool 32 4 011 to pump and connect special tool 32 4 004.

Mount special tool 32 4 006/32 4 012 to special tool 32 4 000 and connect pressure hose with banjo bolt M14 x 1.5 and 2 sealing rings.

Scheme 195

Pressure hose connection to pump with M16 x 1.5 banjo bolt

Mount special tool 32 4 000 DEVICE with banjo bolt (1) M14 x 1.5 and 2 sealing rings to special tool 32 4 000.

Mount special tool 32 4 005 to pump and connect special tool 32 4 000 DEVICE .

Mount special tool 32 4 006 to special tool 32 4 000 and connect pressure hose with banjo bolt M16 x 1.5 and 2 sealing rings.

Scheme 196

Pressure hose connection to pump with M16 x 1.5 union screw

Mount special tool 32 4 000 DEVICE with banjo bolt (1) M14 x 1.5 and 2 sealing rings to special tool 32 4 000.

Connect special tool 32 4 004 to pump.

Mount special tool 32 4 006/32 4 005 to special tool 32 4 000 and connect pressure hose.

Scheme 197

32 41... Notes on hydraulic line with quick-connect coupling

1) Quick-connect coupling with ID marking

Scheme 198

Removing

Push quick-connect coupling (1) against pipe (4) (thereby relieving strain on spring (2)).

Press plastic ring (3) into quick-connect coupling (1) and remove coupling (1).

Assembly

Markings (K) on coupling (1) and pipe (4) must be flush.

Push quick-connect coupling (1) onto pipe (4) until a "click" can clearly be heard.

To check that quick-connect coupling (1) has been installed correctly, pull it back forcefully.

2) Quick-connect coupling with indication pins

Scheme 199

Removing

Press plastic ring (2) into quick-connect coupling (1) and remove coupling (1).

Assembly

When replacing hydraulic line: remove transportation lock (T).

Push quick-connect coupling (1) onto pipe (3) until both indication pins (4) can be seen and felt to point outwards at outside diameter of housing.

To check that quick-connect coupling (1) has been correctly fitted, feel indication pins (4) at outside diameter of housing. When correctly seated, indication pins (4) cannot be pressed into housing.

32 41 060 Removing and installing (replacing) vane pump for power steering (S65)

Note. Because of a change to the belt drive, there are counterclockwise- and clockwise-rotating vane pumps.

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir
2. Remove «BELT PULLEY»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-41-100-removing-and-installingreplacing)
3. Remove «DRIVE BELT TENSIONER»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-28-020-replacing-tensioning-device)

Unclip cover (1), release screw behind and remove deflection pulley (2) from oil filter housing.

Installation

Pin (3) of deflection pulley must be correctly seated in oil filter housing.

Scheme 200

Release banjo bolt (1) and detach pressure line (2) from vane pump.

Release hose clamp (3) and detach suction line (4) from vane pump.

Installation

Replace all sealing rings.

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.

Scheme 201

Release screws (1) and remove vane pump towards front.

Installation

Scheme 202

After installation

1. Fill and bleed «HYDRAULIC SYSTEM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-13-006-bleeding-power-steering)
2. Check pipe connections for leaks

32 41 100 Removing and installing/replacing belt pulley on vane pump for power steering

Note. Carry out preliminary work as described in the document " REPLACING DRIVE BELT ".

Slacken screws (1)

Relieve tension on DRIVE BELT and remove from belt pulley (2).

Unscrew bolts (1) and remove belt pulley (2).

Installation note

Lettering on belt pulley (2) must point forwards.

Scheme 203

32 41 250 Removing and installing/replacing fluid reservoir for power steering

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir

N45, N46, M47T2

1. Remove intake duct if necessary with gaiter

M57T2 335d

1. Unclip coolant hose on coolant expansion tank

Release screw (1).

Note. If necessary, raise and/or turn fluid reservoir in order to gain better access to hose clamps.

Scheme 204

Unfasten hose clips.

Disconnect suction line and radiator return line from fluid reservoir.

Lift out fluid reservoir.

Installation

Make sure hydraulic lines are laid without tension and with sufficient spacing to adjoining components.

After installation

1. Fill and bleed «HYDRAULIC SYSTEM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-13-006-bleeding-power-steering)
2. Check pipe connections for leaks

32 41 341 Replacing cooler return line for power steering

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir
2. Remove «FRONT UNDERBODY PROTECTION»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-47-490-removing-and-installingreplacing)
3. N51, N52, N53, N54: Remove intake filter housing
4. M47T2, M57T2, N47: Remove intake duct

Remove FLUID RESERVOIR FROM BRACKET .

Release hose clamp (1) and detach cooler return line (2) from fluid reservoir.

Installation

Make sure radiator return line is laid without tension and with sufficient spacing to adjoining components.

Scheme 205

Expose cooler return line up to connection on power steering coil.

Release QUICK-CONNECT COUPLING and seal power steering coil connection with a suitable plug.

Installation

Make sure radiator return line is laid without tension and with sufficient spacing to adjoining components.

Scheme 206

After installation

1. Fill and bleed «HYDRAULIC SYSTEM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-13-006-bleeding-power-steering)
2. Check pipe connections for leaks

32 41 332 Replacing pressure line for power steering (S65)

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir
2. Remove «FRONT UNDERBODY PROTECTION»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-47-490-removing-and-installingreplacing)
3. «REMOVE COMPRESSOR DRIVE BELT»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-28-050-replacing-ac-compressor)

Release banjo bolt (1) and detach pressure line (2) from vane pump.

Installation

Replace all sealing rings.

Make sure pressure line is laid without tension and with sufficient spacing to adjoining components.

Scheme 207

Expose pressure line up to connection on power steering gear.

Release banjo bolt (1) and remove pressure line (2).

Installation

Replace all sealing rings.

Make sure pressure line is laid without tension and with sufficient spacing to adjoining components.

Scheme 208

After installation

1. Fill and bleed «HYDRAULIC SYSTEM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-13-006-bleeding-power-steering)
2. Check pipe connections for leaks

32 41 351 Replacing return line for power steering (S65)

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir
2. Remove «FRONT UNDERBODY PROTECTION»(/bmw/m3/e90-2007-2013/remont/door-locks-anti-theft-systems/#body-equipment-repair-e90__51-47-490-removing-and-installingreplacing)

Release QUICK-CONNECT COUPLING and seal cooling coil connection with a suitable plug.

Installation

Make sure return line is laid without tension and with sufficient spacing to adjoining components.

Expose return line up to connection on power steering gear.

Release banjo bolt (1) and remove return line (2).

Installation

Replace all sealing rings.

Make sure return line is laid without tension and with sufficient spacing to adjoining components.

Scheme 209

After installation

1. Fill and bleed «HYDRAULIC SYSTEM»(/bmw/m3/e90-2007-2013/remont/manual-power-steering/#steering-and-wheel-alignment-repair-e90__32-13-006-bleeding-power-steering)
2. Check pipe connections for leaks

32 41 311 Replacing suction line for power steering (S65)

Recycling

Catch and dispose of hydraulic fluid in a suitable container.

Observe country-specific waste-disposal regulations

Necessary preliminary tasks

1. Draw off and dispose of hydraulic fluid from fluid reservoir
2. Remove «DRIVE BELT TENSIONER»(/bmw/m3/e90-2007-2013/remont/mechanical/#engine-repair-e90__11-28-020-replacing-tensioning-device)

Release hose clamp (1) and detach suction line (2) from fluid reservoir.

Installation

Make sure suction line is laid without tension and with sufficient spacing to adjoining components.

Expose suction line up to connection on vane pump.

Release hose clamp (1) and detach suction line (2) from vane pump.

Installation

Markings on suction line and vane pump connection must match up.

Scheme 210

After installation

1. Fill and bleed power steering unit.
2. Check pipe connections for leaks

Note. Adjustment of the active front steering must be carried out

1. Before adjustment work on the front axle/steering
2. after all mechanical work on the steering system
3. after the battery has been disconnected or electrical plug connections on the steering column switch cluster have been disconnected
4. after replacement/programming or coding of the following components: Steering column switch cluster DSC control unit Active front steering control unit ARS control unit

Connect vehicle to BMW diagnosis system.

Select and carry out initial operation/adjustment for active front steering.

See also:
• ADJUSTMENT OF THE ACC SENSOR
• 33 32 9AZ
• 32 21 2AZ
• 31 31 1AZ
• LEFT (OR RIGHT) SUSPENSION CROSSBRACE
• RIDE-LEVEL HEIGHT OF VEHICLE
• WHEEL ALIGNMENT E90, E91/ROUGH ROAD PACKAGE
• LOWERING FRONT AXLE SUPPORT
• REAR AXLE - RIDE HEIGHT
• RIDE-LEVEL HEIGHT OF VEHICLE
• STEERING AND WHEEL ALIGNMENT - OPERATING FLUIDS
• REINFORCEMENT PLATE
• 32 1 260 PLIERS
• FRONT WHEEL
• STEERING COLUMN STALK FIXTURE
• 32 31 STEERING COLUMN
• 00 9 323 SCRAPER
• INTAKE FILTER HOUSING
• 6431062 REMOVING AND INSTALLING/REPLACING LEFT LOWER MICROFILTER HOUSING SECTION
• 6431063 REMOVING AND INSTALLING/REPLACING RIGHT LOWER MICROFILTER HOUSING SECTION
• IF NECESSARY, MODIFY SHIFT PADDLES (5)
• SPORT STEERING WHEEL COVER/SWITCHES
• AIRBAG CONTROL UNIT
• BATTERY NEGATIVE LEAD
• DANGER OF POISONING
• DRIVE BELT TENSIONER
• REPLACING DRIVE BELT
• FRONT UNDERBODY PROTECTION
• operation/adjustment for active front steering
• INITIAL OPERATION/ADJUSTMENT FOR ACTIVE FRONT STEERING
• 3200150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION
• 3200155 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD
• GENERAL INFORMATION AND DEFINITIONS
• GENERAL CHASSIS DEFINITION
• TEST CONDITIONS
• CHASSIS VERSION
• FRONT AXLE AND REAR AXLE
• VEHICLE INTO DESIGN POSITION
• 3200610 ADJUSTING TOE-IN AND CAMBER ON FRONT AXLE (M3)
• VEHICLE INTO NORMAL POSITION
• DANGER OF POISONING
• RISK OF INJURY
• EAR CLAMP
• TIE ROD ENDS FROM SWIVEL BEARING
• LOWER STEERING SPINDLE FROM POWER STEERING GEAR
• HYDRAULIC SYSTEM
• GAITER FROM STEERING GEAR
• UPPER SECTION OF STEERING COLUMN TRIM
• UNIVERSAL JOINT
• 3231020 REMOVING AND INSTALLING/REPLACING LOWER SECTION OF STEERING COLUMN TRIM
• Replacing steering spindle sleeve
• STEERING COLUMN
• AIRBAG UNIT
• SAFETY REGULATIONS
• PROCEDURE AFTER AIRBAG TRIGGERING
• STEERING WHEEL
• BELT PULLEY
• FLUID RESERVOIR FROM BRACKET
• QUICK-CONNECT COUPLING