Removal
AC B. Replacing steering column and ignition switch (700/940), with SRSSpecial tools: 998 8695, 999 1801, 999 2724
Warning!
Take the recommended precautions when working with cars equipped with the SRS system. The battery must not be connected when the steering wheel module is removed or installed.
Note!
Connect special tool 998 8695 when the passenger module is removed. The tool is used to prevent a diagnostic trouble code (DTC) being stored when the engine is started.
AC B1
Removing steering wheel
The following description is based on a 1995 model year 940. The procedures described are applicable to all the principal components in earlier models of the 940 and 700 series cars when these are equipped with the SRS system.
AA C2
Preparations
- Make a note of radio code if anti-theft coded radio is installed.
- Ignition off.
- Disconnect battery negative lead.
AA C3
Ensure that the steering wheel lock is unlocked
Warning!
The battery must not be connected when the steering wheel module is removed or installed.
- Turn ignition switch to position "1" so that the steering wheel lock is unlocked.
AA C4
Remove screws to steering wheel module
Undo screws (2 x Torx 30) from countersunk holes on back of steering wheel. Turn the steering wheel (90 in both directions) to access the screws.
AA C5
Remove steering wheel module
- Carefully lift out the steering wheel module and disconnect the connector from reverse of the module.
- Remove steering wheel module.
Warning!
The steering wheel module must never be taken apart, repaired or moved to another vehicle.
Warning!
Under no circumstances use an ohmmeter or other live measuring instrument to take readings on a disconnected, non-deployed airbag module. This could deploy the airbag!
Warning!
If a non-deployed passenger module is removed temporarily, it should be placed with the metal Side (rear) downwards in a protected place (the cargo compartment for example).
AA C6
Installing special tools
- Install special tool 998 8695 to SRS ignition cable connector.
- This makes it possible to drive the car without the SRS on-board diagnostic (OBD) system registering a diagnostic trouble code (DTC).
- It the ignition is switched on when neither steering wheel module nor special tool are connected, an open-circuit diagnostic trouble code (DTC) will be stored. (Any diagnostic trouble code (DTC) must be erased.)
AA C7
Adjusting the front wheels
Undo but do not remove the steering wheel center bolt.
- Slacken off the steering wheel center bolt (with 18 mm socket wrench), but do not unscrew it completely!
- It should be possible to unscrew the bolt by hand in the next operation.
AA C8
Adjust the front wheels so that they point straight ahead.
- Connect battery negative lead.
- Drive the car straight and/or backwards on a level surface so that the front wheels point straight ahead.
Caution!
It is always important to point the wheels straight ahead when carrying out work that requires the removal of the steering wheel and/or contact reel.
Warning!
Do not drive the car further than necessary to align the front wheels. The steering wheel is not properly tightened and the steering wheel module has been removed!
Removing steering wheel
AA C9
Disconnect battery negative lead.
Caution!
This and the following operation should be carried out without disturbing the steering wheel position (front wheel direction).
AA C10
Remove special tool
AA C11
Remove the steering wheel center screw
- Do not disturb steering wheel.
AA C12
Remove screw from the parking hole
- Do not detach the screw from the plastic strip.
AA C13
Remove the steering wheel
- Lift out the steering wheel straight, without turning it. Allow the cable and the plastic strip to pass through the hole in the steering wheel.
AC B2
Remove left-hand side soundproofing panel and knee bolster
AC B3
Removing steering wheel covers and switch
Remove:
- screws (2 x Torx 10) from the upper cover
- screws (2 x Torx 25) from the lower cover
- upper and lower cover from steering shaft
- screws (4 x Torx 25) from the turn signal lamps and the intermittent wiper switch
- switches from the steering shaft. Leave the switches hanging in the cables.
AC B4
Remove contact reel
Remove:
- screws (2 x Torx 25).
- contact reel, lift out carefully
- anchor plate
- connector (2-pin) for SRS ignition cable
- connector (1-pin) for the signal cable
- cable to the signal.
AC B5
Slacken off the steering shaft in the engine compartment
- Locking pin and screw on the upper steering shaft joint.
- Locking pin on upper screw for lower joint.
- Slacken off the screw
- Release the lower steering shaft from the steering column by sliding the steering shaft towards the steering gear.
AC B6
Remove the lower bearing from the firewall
Early version:
- Remove the screws for the lower bearing.
Later versions:
- Remove the nuts for the lower bearing. The nuts are accessible from the engine compartment.
- The later version was introduced into production during week 9405.
AC B7
When replacing ignition switch; slacken off the bearing housing locking screws
Note!
This point applies only if the ignition switch is to be changed as well.
Use a center punch and tap them loose or center punch bolts and drill a hole of suitable diameter and depth for screw extractor tool.Do not yet unscrew the screws fully.
Slacken the locating pin screw.
AC B8
Remove the circlip and spacer from the steering shaft
Use circlip ring pliers
Counterhold with one hand under the dashboard when the circlip is released.
AC B9
Turn the ignition switch to position "1"
AC B10
Push steering column down through bearing housing
If only the spacer rings are to be changed:
- Remove the lower spacer, washer/washers and spring.
- Install new spacers according to: Installation AC B29.
AC B11
Lift out steering column under dashboard
AC b12
Corrective action when replacing steering column
Remove:
- Steering column.
- Lower bearing from steering column.
- Lower spacer ring, washer/washers and spring.
AC B13
Removal as applied to cars with electronic immobilizer
Note!
The following action applies only to cars with electronic immobilizer.
- Remove the panel around the ignition switch.
- Remove the antenna ring from the ignition switch. The connector for the antenna ring does not need to be removed.
AC B14
To replace the ignition switch remove the following
Remove:
- Ignition key
- Ignition switch locking screws in the member
- The screw in the locating pin.
Lift up the bearing housing. Press the ignition switch with a finger. Remove the bearing housing and ignition switch under the dashboard.
Note!
If the car is equipped with an ignition switch interlock the cable to the ignition switch interlock must be released before the bearing housing and ignition switch can be removed, see the next operation.
Note!
Remove the connector from the ignition switch.
AC B15
Removal as applied to cars with ignition switch interlock
Note!
The following actions apply only to cars equipped with ignition switch interlock.
- Move bearing housing and ignition switch under the dashboard so that the locking tab to the ignition switch interlock is accessible.
- Put gear selector in position P.
- Turn the ignition switch to position 1 or 2.
- Release the cable from the ignition switch by pressing down the upper lock lug with a drift (dia. 3 mm) and pull out the cable from the ignition switch.
- Remove the bearing housing and ignition switch under the dashboard.
AC B16
Remove the ignition switch from the bearing housing
Tap security screw loose or center punch bolts and drill a hole of suitable diameter and depth for screw extractor tool.
AC B17
Check the bearings in the bearing housing
Replace if necessary, see point AC B20.
AC B18
Check lower steering shaft bearing tracks
Check position of the lower steering shaft bearing track and that the surface is not scratched.
The track should lie 50.5 mm from the edge.
Caution!
Take care not to damage the bearing track edges.
AC B19
Check the steering shaft length
Check that the collapsible coupling has not collapsed. The correct length of the shaft should be 727.2 mm ± 1 mm (28.63 in. ± 0.039 in.).
Note!
In the illustration the upper bearing is mounted.
AC B20
Tap out the bearing in the upper bearing housing
Note!
If the bearings are removed they cannot be reinstalled. They must be replaced.
Knock out the inner bearing track first and then the outer one. Use a drift.
AC B21
Install bearings
Install bearings, use:
- Drift 999 2724 and bar 999 1801.
- Installation paste.
Replacing ignition switch
Note!
For cars from the 1988 model year and later a protective panel has been introduced. The protective panel is positioned behind the dashboard and has been introduced to increase anti-theft protection. If the car is equipped with protective panel the ignition switch replacement is carried out according to the description under the method for replacing steering column and ignition switch. See:
- AC A. Replacing steering column and ignition switch, without SRS system .
- AC B. Replacing steering column and ignition switch, with SRS system.
AC C1
Removing ignition switch
- Remove soundproofing panel under the dashboard.
- Detach connector from ignition switch.
- Remove upper steering column cover and the panel by the ignition switch.
- Slacken off screw holding ignition switch.
- Insert the key into the ignition switch and turn to the starting position
- Press the catch in through the hole in the holder with an appropriate implement and remove the lock.
AC C2
Installing ignition switch
Install as follows:
- insert key into lock, turn, push the catch in and remove the key.
- place lock into opening, release the catch by inserting the key again.
- tighten the locking screw and test the function.
- Later version 940: Tap in a new blind cover plug over catch.
- Reinstall steering wheel cover and panel by ignition switch.
- Connect connector to ignition switch.
- Reinstall soundproofing panel under dashboard.