720119 Removing and Installing Front Seat

WM 720119 Removing and installing front seat

Technical values






Removing front seat

CAUTION

Danger of injury and damage to property as a result of incorrect handling of airbag units. Always observe the safety regulations for handling airbag units => Safety regulations for handling airbag and.

- The airbag unit must always be deposited so that the airbag opening faces upward.
- If removed for an extended period, the airbag unit must be kept in a locked place.
- After the battery is disconnected, always wait for 1 minute before disconnecting the airbag plugs.

Information

- In the case of faulty fore-and-aft or vertical adjustment, the seat can only be removed together with the seat frame. => Removing and installing front seat frame





1. Move backrest all the way forward. Move front seat all the way up and all the way forward.
2. Unlock the covers -arrows C- and remove the rear seat rail caps -arrows D-.





3. Unscrew rear seat rail fastening screws -3-.
4. Pull out seat belt cover at the front -A- and remove by pulling it forward -B-.





5. Unlock retaining clip on the belt end fitting using a suitable screwdriver -arrow A-.





6. Push belt end fitting over the retaining pin -arrow B- until the lug under the retaining pin loosens the clip.
7. Remove belt end fitting from the retaining pin -arrow A- and pull seat belt out through the belt guide -arrow B-.





8. Move the driver's seat back fully and lower rear seat area.
9. Remove ignition key. Disconnect the battery. Route or insulate the ground strap so that any contact with a ground carrier (e.g. body, seat frame) is avoided => 90 Work instructions after disconnecting the battery.
10. Unlock the covers -arrow A- and remove the front seat rail caps -arrow B-.





11. Unscrew front seat rail fastening screws -4-.
12. Tilt seat backwards.
13. Unlock belt lock connector -arrow A- and remove it -arrow B-.





14. Unlock central connector -arrow C- and pull it off -arrow D-.
15. Press protective cover on airbag plug down -arrow A- and hold at this position.





16. Unlock airbag plug -arrow B- and remove it -arrow C-.
17. Unlock connector on seat control unit -arrow A- and remove it -arrow B-.





18. Unclip wire harness.
18.1. Press the clip up and off the seat frame -arrow A-.





Detaching wiring duct from seat

18.2. Remove wiring duct by pulling it forward -arrow B-.
19. Remove seat.

Installing front seat

DANGER

Incorrect information for AWS control module.

- Passenger's airbag is triggered differently.

-> If the passenger's seat was removed and re-installed, the AWS control module must be calibrated.
-> If the seat bracket was replaced, the AWS control module must be calibrated.
-> If the AWS control module was replaced, the AWS control module must be calibrated.

1. Place front seat in car and tilt backwards.
2. Insert central connector -1- and belt lock connector -2- until the locking lugs -arrow- click into place.





3. Insert airbag plug -arrow A- until the lock -B- engages securely.





4. Insert connector into the seat control unit -arrow A- until the locking lugs -B- engage securely.





5. Clip wire harness into place.
5.1. Fit wiring duct onto the seat frame -arrow A-.





Securing wiring duct to seat

5.2. Clip line onto the seat frame from above -arrow B-.
6. Fold seat forward -arrow A- and align on seat frame with centering pin -arrow B-.





7. Connect the battery => 90 Work instructions after disconnecting the battery.

CAUTION

Risk of material damage to screw connections for seat and seat frame.

-> The fastening screws for seat and seat frame are coated and must be replaced after being unscrewed.
-> Before screwing in the new fastening screws, clean the thread holes with an M10 x 1.5 tap.

8. Move front seat all the way back. Screw in front fastening screws -4- only until the seat rails touch the seat frame.





9. Move front seat all the way forward and secure the seat to the seat frame at the rear -3-.=> Tightening torque: 45 Nm (33 ftlb.).





Securing seat at the rear

10. Install rear caps
10.1. Fit the caps at the rear onto the seat rail -arrows A-. Ensure that the inside of the cover -a- only rests against the lugs -b- of the metal clip and is not guided by it.
10.2. Press the covers down -arrows B- until they engage securely.





Installing rear seat rail caps

11. Move front seat all the way back and screw seat to seat frame at the front -4- => Tightening torque: 45 Nm (33 ftlb.).





12. Push front caps onto the seat rails -arrows C- and press down the covers -arrows D- until these engage securely.
13. Push seat belt through the belt guide at the seat -arrow A-.





14. Position belt end fitting on the retaining pin -arrow B- and pull upwards -arrow C- until the retaining clip locks with an audible click.
15. Engage seat belt cover on the seat trim -arrow A- and push it in -arrow B- until it engages securely.





16. Carry out work instructions after disconnecting the battery => 90 Work instructions after disconnecting the battery.