Door Locks: Service and Repair

Door Lock Assembly, Removing And Installing

The window regulators, door lock and speaker are secured to the door assembly carrier.

The door lock can only be removed with the assembly carrier.

The assembly carrier can only be removed when the window regulator clamping brackets are removed. To do this lower door window to assembly holes in assembly carrier and loosen clamping brackets.

If power windows cannot be lowered then correct the condition first.

Interrogate comfort locking systems Diagnostic Trouble Code (DTC) memory (address word 46) with VAG 1551

Correct any electrical Diagnostic Trouble Code (DTC) before proceeding.

If the power window motor is the cause, proceed as described.

Removing

- Remove door trim
- Removing lock cylinder housing.







- Remove clip -1- from door handle.







- Pry out cap -1-.
- Lower window until window bolts are accessible.


NOTE: If work cannot continue due to Diagnostic Trouble Codes (DTC) related to the power window motor, remove motor to slide window down.


- Loosen bolts -2- and press clamps apart.
- Push window upward and secure in position (e.g. with adhesive tape).
- Remove hood release lever.
- Remove lower A-pillar trim







- Disconnect multi-pin connector -1- on A-pillar -2-.







- Take cover -1- for wiring harness -2- out of body opening in the inner A pillar.







- Pull wire harness boot -1- out of A-pillar.







- Disconnect all connections -arrow-.
- Remove screw -1- and disconnect wiring harness guide panel -2- from door.
- Guide wiring harness with boot through door.







- Remove bolts -2-, torque: 20 Nm (15 ft.lb).







- Remove bolts -arrows-.
- Pull top of assembly carrier from door, lift and pull out of door toward hinges.
- Turn assembly carrier and pull connector off door lock.







- Drive out clips -1- with a drift.







- Disconnect cable -2- from clip -1-.
- Carefully pry door lock off assembly carrier using a screwdriver -3-.


NOTE: The retaining bracket is not part of the items supplied with the door lock. Secured to door lock with a bolt and a pop rivet.







- Disconnect rod -1- by turning door lock in direction of arrow.
- Disconnect cable -2-.
- Turn cable nipple through 90° and remove from eye.

Installing

- Pull lock operating lever -1- in direction of arrow.







- Tension spring -2- which is secured on door lock, in direction of arrow with a screwdriver and hook locking lever into spring.


NOTE: Connecting the operating lever activates the lock. Incorrectly attaching bowden cable (lock can release) is prevented.


- Insert assembly carrier in door.







- Loosely install all bolts. Tighten bolts in sequence. Torque: 8 Nm (71 in.lb).
- Press door window glass -1- into window guide -arrow- and tighten clamps with bolts -2- 10 Nm (89 in.lb).
- Continue installation in reverse sequence.
- Check function.