52 14 001 Removing and installing front seat, driver's side

Necessary preliminary work: 

• Remove CRASH-ACTIVE HEADREST 
• Remove COVERS ON SEAT RAILS 
• Remove OUTER COVER 
• Disconnect BATTERY NEGATIVE CABLE

Installation: 

• Powerlok screws must be replaced and must not  be reused
• Powerlok screws are mechanical screw locks with tri-lobular threads

Move front seat towards rear.

Release screws (1).

Installation: 

Replace screws.

Tightening torque 52 10 1AZ .

Fig 1: Identifying Front Seat Screws

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Move front seat forwards.

Release screws.

Installation: 

Replace screws.

Tightening torques 52 10 1AZ .

Fig 2: Identifying Front Seat Screws

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Release screw (1).

Tightening torque 72 11 7AZ .

Remove lock washer.

Pull belt strap (2) out of end fitting pretensioner.

Fig 3: Pulling Belt Strap Out Of End Fitting Pretensioner

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Installation: 

Carpet must not project between seat rail and floor board in area of screw-down points (grinding noises).

Unclip cover (1) towards front.

Release cable tie on plug connection.

Installation: 

Replace defective cable tie.

Unfasten plug connection (2) and disconnect.

Unclip wiring harness from seat mechanism.

Fig 4: Disconnecting Plug Connection

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Carefully lift out front seat.

Installation: 

Make sure wiring harness is correctly routed in order to avoid grating noises, jamming or collisions.

Clip in cable holder for wiring harness.

Lay wiring harness only in area (1) of cover.

Fitting the wiring harness between the carpet and the cover in control unit area (2) will result in grating noises.

Carry out a complete longitudinal adjustment (forward/back) with front seat.

Fig 5: Identifying Wiring Harness Installing Area

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