Front Backrest
Front Seats
• From 06.2006, the usual wiring harness routing to connector station under front seat. Refer to => [ Connectors, Disconnecting ] Front Seats has been replaced with modular wiring routing => [ Modular Wiring Routing Assembly Overview, from June 2006 ] Front Seats.
• 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. Refer to => [ Modular Wiring Routing Versions ] Front Seats.
Front Backrest
1 - Backrest
Removing
CAUTION!
For vehicles with side airbags, observe safety precautions for side airbags. Refer to => [ Side Airbag Safety Precautions ] Airbag Safety Precautions.
- Remove seat.
• Check which version of the wiring routing is installed, Modular Light or Modular. Refer to => [ Modular Wiring Routing Versions ] Front Seats.
- 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 backrest adjustment wheel. Refer to => [ Backrest Adjusting Wheel ] Backrest Adjusting Wheel.
- Remove seat height adjustment handle. Refer to => [ Seat Height Adjustment Handle ] Seat Height Adjustment Handle.
- Remove side trim on sill side. Refer to => [ Side Trim, Sill Side ] Side Trim, Sill Side.
- Remove side trim on tunnel side. Refer to => [ Side Trim, Tunnel Side ] Side Trim, Tunnel Side.
CAUTION!
Before handling airbag units (e.g. when disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching door striker, for example.
- Disconnect connectors - 7 - (Qty. 3).
• The side airbag connector - 7 - is discontinued from MY 2006.
- Remove the cable on the rails.
Vehicles with wiring routing Modular Light
Vehicles with Modular Light have only one wiring harness, from the side airbag through the coupling station => [ wiring
routing ] Front Seats.
- Remove corrugated tube. Refer to => [ Modular Wiring Routing with Corrugated Tube on Front Seat ] Front Seats.
Vehicles with wiring routing Modular
Using wiring routing Modular is only on vehicles with the bladder system and is not used in all markets. Refer to => [ wiring routing ] Front Seats.
- Remove corrugated tube. Refer to => [ Modular Wiring Routing with Corrugated Tube on Front Seat ] Front Seats.
Procedure for all vehicles
- Remove bolts - 2 - (Qty. 4).
- Tip backrest - 1 - forward on seat.
- Push cushion aside and carefully disconnect cable harness from seat pan - 8 -.
- Remove backrest - 1 -.
- Lay the backrest down - 1 - so padding faces upward.
Installing
CAUTION!
Before handling airbag units (e.g. when disconnecting the connector), the person handling it must "discharge static electricity". This can be done by touching door striker, for example.
- Ensure connectors engage completely (audibly).
- Replace bolts - 2 - (Qty. 4).
- Cut threads in backrest frame before installing screws - 2 - (Qty. 4).
- Continue to install backrest - 1 - in reverse order of removal. Observe the following when doing so:
- Install front seat.
- Switch on ignition.
CAUTION!
Ignition must be on when connecting battery. If pyrotechnic components (e.g. airbag, belt tensioner) are not repaired correctly, they may deploy unintentionally after connecting battery. There must not be anyone inside the vehicle when connecting the battery.
- Connect battery ground wire with ignition switched on.
- If Airbag Malfunction Indicator Lamp (MIL) (K75 ) indicates a fault after installation, DTC memory must be checked, deleted and checked again. Refer to => Vehicle Diagnosis, Testing and Information System (VAS 5051B).
2 - Bolts
• Qty. 4
• 20 Nm
3 - Backrest Adjusting Wheel
4 - Plastic Rivet
• Qty. 2
5 - Seat Height Adjustment Handle
6 - Side Trim (Sill Side)
7 - Connector
• Qty. 3 - through MY 2005
• Qty. 2 - from MY 2006
8 - Seat Pan
9 - Side Trim (Tunnel Side)
10 - Plastic Rivet
• Qty. 2