Backrest Adjustment Motor
Power Front Memory Seats
• From 07.2006, the usual wiring harness routing to connector station under front seat => [ Connectors, Disconnecting ] Power Front Memory Seats Overview has been replaced with modular wiring routing => [ Modular Wiring Routing, from 07.2006, Assembly Overview ] Standard Front Seats Overview.
• The modular wiring routing has not been implemented for all countries.
• Check version of front seat and of vehicle and perform repairs accordingly.
• Note the two possible versions of the modular wiring routing, Modular Light or Modular => [ Modular Wiring Routing Versions ] Standard Front Seats Overview.
Backrest Adjustment Motor
Special tools, testers and auxiliary items required
• Engine and transmission holder (VAS 6095)
• Fixture for seat repair (VAS 6136)
1 Lumbar support adjustment motors (Qty. 2)
2 Seat height adjustment motor
3 Motor for seat inclination adjustment
4 Longitudinal seat adjustment motor
5 Backrest adjustment motor
• Removing
- Remove seat => [ Power Front Memory Seat ].
- Mount the fixture for seat repair (VAS 6136) on the engine and transmission holder (VAS 6095).
- Attach the front seat to the fixture for seat repair (VAS 6136).
- Remove side trim on sill side => [ Side Trim, Sill Side ].
- Remove side trim on tunnel side => [ Side Trim, Tunnel Side ].
- Remove backrest cover panel => [ Backrest Cover ].
• A passenger seat backrest is shown in the illustration.
- Remove bolt from motor for backrest adjustment => [ Removing mount for motor for backrest adjustment ].
- Pry out spring washer - 5 - on side of backrest motor with a screwdriver at - B -.
- Tap shaft - 4 - through the side of the backrest frame using a hammer and drift punch.
- Pull out shaft - 4 - just far enough out of backrest frame - 1 - until motor for backrest adjustment can be removed.
• Installing
- Adapt the splines of new motor for backrest adjustment => [ Preparing backrest adjustment motor ].
- Slide shaft - 4 - through motor for backrest adjustment and through backrest frame - 1 -.
- Set seat aside.
- Lay wood block - 2 - on opposite side of backrest adjustment motor below shaft - 4 - - A -.
- Using a socket (11 mm) - 3 -, drive spring washer - 5 - onto shaft - 4 - - C -.
- Install screw on backrest adjustment motor and connect connector.
Further installation is performed in the reverse order of removal.
- For seats with seat memory: After installing seat, perform a basic setting for backrest or seat.
1 Backrest frame
2 Wood block
3 Socket 11 mm
4 Shaft
5 Spring washer
Removing mount for motor for backrest adjustment
- Disconnect connector - 5 -.
- Pull cover - 3 - and anti-crush fleece - 2 - aside.
- Remove screw - 4 -.
Preparing backrest adjustment motor
- Using a screwdriver, turn the locking pin of splines - 1 - so it aligns with shaft of backrest frame.
Backrest Cover
• In the illustration, removal and installation of backrest cover is shown on a front seat with the active head restraint system.
• Removing and installing the backrest cover on a front seat without the active head restraint system is the same.
1 Front seat
2 Retaining strip
• Always on tunnel side
3 Clips (Qty. 3)
• must be replaced