Removing and Installing Wiring For Electrically Adjustable Seat
Removing And Installing Wiring For Electrically Adjustable Seat
Tools
Preliminary Work
Remove front seat.
Removing wiring for electrically adjustable seat
CAUTION:
Danger of injury and material damage if airbag units are not handled correctly.
- The airbag unit must always be stowed so that the airbag opening faces upwards.
- If removed for an extended period, the airbag unit must be kept in a locked place.
- Remove ignition key. Disconnect battery. Route or isolate ground strap so that all contact with a ground carrier (e.g. body, seat frame) is avoided.
- After the battery is disconnected, always wait for 1 minute before disconnecting the airbag plugs.
1. Disengage plastic strips of backrest cover -Arrows A-.
2. Cut tie-wrap -a-.
3. Move floor light holder to the left to release -Arrow B-, then to the right to remove -Arrow C-.
4. Release plugs -Arrows D- and remove from floor light -Arrow E-.
5. Compress locking mechanism of airbag plug -Arrow A- and pull off the plug -Arrow B-.
6. Release ground connector -1- and central connector -2- for backrest -Arrows A- and pull off both connectors -Arrows B-.
7. Release both connectors -Arrows A- and unplug from switch for power-seat controls -Arrows B-.
8. Press together the locking tabs of the clip -Arrows A- and pull out the connector, together with the clip, in a downward direction -Arrow B-.
9. Press the locking tab to the side -Arrow C- and remove the connector from the clip -Arrow D-.
INFORMATION: If necessary for reasons of space, remove the seat-belt buckle plug beforehand.
10. Remove front belt lock.
11. Push central lock on the side in a downward direction -Arrow A- until the retaining hook is released, then push the central connector downwards from the clip -Arrow B-.
12. Release connector -Arrow A- and disconnect it from the seat heater control unit -Arrow B-.
INFORMATION: Disconnect the connector axially from the motor. Otherwise the retaining lugs can break off and this can prevent the connector from locking securely.
13. Unplug connectors from adjusting motors -Arrow-.
14. Push the retaining hooks on the inner spring upwards -Arrow A- and remove the socket housing sideways -Arrow B-.
15. Unclip wiring harness from inner spring using a disassembly tool, universal NR.21 -Arrows-.
16. Unclip wiring harness from seat frame -Arrows- and remove.
Installing Wiring For Electrically Adjustable Seat
1. Clip wiring harness to inner side of seat frame -Arrows-.
2. Clip wiring harness into inner spring -Arrows-.
3. Press socket housing into the inner spring at the side -Arrows- until the locking mechanisms are felt to engage.
4. Insert ground connector of airbag -1- and central connector of backrest -2- into seat wiring harness -Arrows A- until locking tabs -Arrows B- are felt to engage.
5. Compress airbag connector -Arrow A- until the locking mechanism -Arrow B- is felt to engage.
6. Push connectors onto adjusting motors -Arrow- until they are felt to engage.
7. Push clip onto airbag connector -Arrow A- until locking mechanism is felt to engage -Arrow B-.
8. Insert airbag connector into the retainer plate -Arrow C- until the clip is felt to engage in the retainer plate.
9. Push central connector onto the retaining clip -Arrow D- until it is felt to engage.
10. Insert plug into seat heater control unit -Arrow E- until it is felt to engage.
11. Insert connector into floor light -Arrow A- until the locking tabs are felt to engage -Arrows B-.
12. Fasten line with a new tie-wrap -a- to the holder.
13. Slide in holder with footwell light to the left -Arrow C-, then move it to the right -Arrow D- until the latch is felt to engage.
14. Engage plastic strips of backrest cover on the inner spring -Arrows E-.
Subsequent Work
Install front seat.
Connect battery and carry out work instructions after disconnecting the battery.