481319 Removing and installing steering column casing

WM 481319 Removing and installing steering column casing

Preliminary work

Preliminary work for removing and installing steering column casing

WARNING

Incorrect handling of airbag units

- Triggering of airbag unit
- System faults can occur

-> Switch off ignition and remove ignition key.
-> A voltage supply (e.g. battery charger) must not be connected to the external power supply/jump-lead starting terminals.
-> Disconnect the battery and insulate the ground strap so that all contact with a ground carrier is avoided.
-> Wait 1 minute after disconnecting the battery.
-> Only pull off connector on the triggering unit after the waiting time has elapsed.
-> Make sure that no foreign objects are located in front of the airbag unit during installation.
-> Replace damaged parts during removal.
-> Always position the airbag unit in such a way that the airbag opening is facing upwards.
-> If removed for an extended period, the airbag unit must be stored in a safe place.
-> Airbag units must not come into contact with grease, oil, detergents, liquids, or similar substances.
-> Do not expose airbag units to temperatures above 90°.
-> Do not remove the short-circuit spring on the plug-in contacts.
-> Ignition and preparations may only be carried out by skilled staff, supervised by a second responsible person.
-> Before disposal, the airbag unit must be rendered harmless by electrical ignition performed in accordance with all precautionary measures, thereby preventing it from being used incorrectly.

1. Remove steering wheel. -> 481019 Removing and installing steering wheel - section on "Removing" 481019 Removing and installing steering wheel
2. Remove switch for height and fore-and-aft adjustment. -> 482919 Removing and installing switch for height and fore-and-aft adjustment - section on "Removing" Service and Repair

Removing steering column casing

1. Unclip upper part of casing -1- through the openings on the front panel -2- using a suitable screwdriver.





Unclipping upper part

2. Fold upper part of steering column casing -1- up and unclip the clips on the dust boot -2-.





Unclipping dust boot

3. Remove upper part of steering column casing -1-.
4. Unscrew screws -2, 3- from lower part of steering column casing -1-.





Screws on lower part

5. Remove lower part of steering column casing -1-.

Installing steering column casing

1. The steering column casing is installed in reverse order to removal.

Subsequent work

Subsequent work for removing and installing steering column casing

WARNING

Incorrect handling of airbag units

- Triggering of airbag unit
- System faults can occur

-> Switch off ignition and remove ignition key.
-> A voltage supply (e.g. battery charger) must not be connected to the external power supply/jump-lead starting terminals.
-> Disconnect the battery and insulate the ground strap so that all contact with a ground carrier is avoided.
-> Wait 1 minute after disconnecting the battery.
-> Only pull off connector on the triggering unit after the waiting time has elapsed.
-> Make sure that no foreign objects are located in front of the airbag unit during installation.
-> Replace damaged parts during removal.
-> Always position the airbag unit in such a way that the airbag opening is facing upwards.
-> If removed for an extended period, the airbag unit must be stored in a safe place.
-> Airbag units must not come into contact with grease, oil, detergents, liquids, or similar substances.
-> Do not expose airbag units to temperatures above 90°.
-> Do not remove the short-circuit spring on the plug-in contacts.
-> Ignition and preparations may only be carried out by skilled staff, supervised by a second responsible person.
-> Before disposal, the airbag unit must be rendered harmless by electrical ignition performed in accordance with all precautionary measures, thereby preventing it from being used incorrectly.

1. Install switch for height and fore-and-aft adjustment. -> 482919 Removing and installing switch for height and fore-and-aft adjustment - section on "Installing" Service and Repair
2. Install steering wheel. -> 481019 Removing and installing steering wheel - section on "Installing" 481019 Removing and installing steering wheel