Removing and Installing Steering Column
Removing and installing steering column
Preliminary work
1. Ignition key in position 1. Then ignition key in position 0 = (switch ignition off but do not remove key so that electronic steering wheel locking does not lock). Then disconnect battery.
2. Remove airbag unit for driver.
3. Turn steering wheel to a straight-ahead position and remove it.
Information
^ For better accessibility, move the height adjustment (steering wheel) of the steering column to the appropriate position and close the locking lever.
4. Remove main headlight switch. To do this, press in rotary knob on the light switch (not to the stop) and turn the switch clockwise. Pull out the light switch in this position. Release and remove connector.
5. Remove trim panel (lower part of dashboard). Unscrew the fastening screws -1- and swivel the cover under the dashboard on the driver's side -2- downwards -Arrow A-.
Removing trim panel (lower part of dashboard)
6. Release plug connections -1, 2, 3- and remove -Arrows A-.
Disconnecting the electrical plug connections
7. Remove clutch pedal on vehicles with manual transmission.
Removing the steering column
Caution
Increase risk when handling airbag modules.
^ Injury and material damage may occur if airbag units are not handled correctly.
-> Observe safety regulations for handling airbag modules.
Information
^ The height adjustment (steering wheel) of the steering column must be in the lower stop and the locking lever closed.
^ The electronic locking unit (ELV) must be open (ignition key plugged in, then disconnect battery).
As a spare part, the steering column -A- is delivered complete with steering shaft.
Overview, steering column
A - Steering column with steering shaft
1. Remove trim panel of steering column switch and remove steering column switch.
2. Loosen strut on retaining frame (arrow shows mount on steering column).
Strut on steering column
3. Remove KESSY/PAS control unit.
4. Loosen lower steering column mount. To do this, loosen the lock nut -1- approx. 3 turns. Then unscrew the pedal bearing axle on the hexagon -2- approx. 2 turns (anti-clockwise).
Steering column mounting
5. Loosen upper steering column mount (loosen lock nut -3-/remove hexagon-head bolt -4-) and extend the steering column.
6. Remove front underbody panel.
7. Loosen fastening screw -Arrow- and pull off steering shaft (universal joint) on the steering gear.
Steering shaft to steering gear
Installing the steering column
Caution
Increase risk when handling airbag modules.
^ Injury and material damage may occur if airbag units are not handled correctly.
-> Observe safety regulations for handling airbag modules.
Information
^ Observe the tightening sequence on the mounting bracket.
^ Once the battery is disconnected, perform the work required for full restoration of normal driving.
^ Calibrate steering-angle sensor.
^ If the steering column is replaced (new steering column), the electric steering column locking mechanism (ELV) must be taught with the PIWIS Tester in the PAS system, menu Learning functions >> Teach ELV << You can get the necessary Teach Enable Code (TEC code) from PAS or from your importer using the vehicle identification number.
^ Always replace the fastening screw for the universal joint of the steering column.
^ Replace locking screws and nuts.
^ Replace the clamping washer (strut mount to steering column).
^ Carry out a visual inspection of all parts.
^ Observe correct tightening torques.
Individual components cannot be disassembled and/or replaced.
1. Before installing the steering column, mount the strut -Arrow- without play on the steering column.
Strut to steering column
2. Put steering gear in center position. Make sure that the clip for steering gear pinion is present (steering shaft assembly aid). Mount the steering shaft (universal joint) to the steering gear in the correct position using new hexagon head bolt -Arrow-.
Steering shaft to steering gear
3. Insert the steering column and pay attention to the block teeth of the steering shaft (the steering shaft can only paired be in one position! 2. worker required). Tightening sequence for mounting:
Steering column tightening sequence
1. - Pedal bearing axle on a/f 10 mm hexagon -2- (tightening torque 8 + 2 Nm (6 + 1.5 ftlb.))
2. - Lock nut right -1a- (tightening torque 10 Nm (7.5 ftlb.)). Then lock nut for steering column -1b- (tightening torque 46 Nm (34 ftlb.)).
3. - Lock nut of upper mount -3- (tightening torque 46 Nm (34 ftlb.))
4. Install front underbody panel.
5. Install KESSY/PAS control unit.
6. Put steering column in the lowermost adjustment position and close the locking lever again. In this position, fasten the strut to the structure (this allows the adjustment range to move smoothly in all positions).
7. Install the steering-column switch and the trim panel from the steering-column switch.
Subsequent work
1. Install clutch pedal on vehicles with manual transmission.
2. Mount linings under dashboard.
Installing lining
3. Install main headlight switch. To do this, insert the connector until it is felt to engage. Push in the light switch to the stop and turn the rotary switch anti-clockwise.
4. Install steering wheel.
5. Install airbag unit for driver.
6. Connect the battery.
Information
If the steering column is replaced (new steering column), the electric steering column locking mechanism (ELV) must be taught with the PIWIS Tester in the PAS system, menu Learning functions >> Teach ELV << You can get the necessary Teach Enable Code TEC code) from IPAS or from your importer using the vehicle identification number.
7. Read out all fault memories and delete them, if necessary.
8. Carry out suspension alignment.
9. After the suspension alignment, with the position of the wheels >> straight ahead << calibrate the steering-angle sensor on the measuring platform.
10. Carry out a test drive and check the operation (continuous easy steering movements, steering column adjustment, electronic steering column lock).