Front Door Window Motor: Service and Repair

Carrier Assembly, Removing And Installing

Window regulator, door lock and loudspeaker are secured to carrier assembly.

Window regulator is part of carrier assembly delivery casing.

Carrier assembly can only be removed when door window has been removed at clamping brackets of window regulator. For this purpose, door window must be driven down to height of installation holes in carrier assembly and clamping brackets loosened.

If it is not possible to drive down door window by electrical window regulator, first exact cause of malfunction must be determined.

To do so, using Scan Tool (ST) V.A.G1551, check DTC Memory of comfort system (address word 46).

If there is an electrical fault via window regulator motor, this can be removed from carrier assembly.

Removing
- Removing front door trim.
- Removing and installing lock cylinder housing.







- Pry off caps - 1 -.
- Lower door window until securing bolts of door window are accessible.

NOTE: If work step is not possible due to a malfunction via electrical window regulator, window regulator motor can be removed to be able to slide window down.

- Loosen bolts - 2 - and press clamping brackets apart.
- Slide door windows upward and secure (e.g. using adhesive tape).







- Disconnect all connectors - arrows -.







- Remove bolts -2 -.

Tightening torque: 20 Nm







- Remove bolts - arrows -. Remove upper carrier assembly from door, lift and lift out from door toward hinge side of door.
- Rotate carrier assembly and disconnect connector from door lock.
- Then, unclip clips for electrical wires from rear side of carrier assembly.

Installing







- Pull operating lever - 1 - in direction of - arrow -.
- Using a screwdriver, tension spring - 2 - secured to door lock in direction of - arrow - and engage lock lever into spring.

NOTE: Lock is secured by engaging operating lever. Thereby later incorrect clipping-in of Bowden cable is prevented.

- Insert carrier assembly into door.







- Tighten all bolts. Tighten bolts marked - 1 - and - 2 - in specified sequence.

Tightening torque: 8 Nm

- Remaining bolts can be tightened in any sequence.
- Insert door window - 3 - through window recess without additional force into clamping brackets and align at rear window guide - arrow -.
- While doing this, make sure that window stands parallel to window guide.
- Tighten clamping brackets with bolts - 4 -.
- Tightening torque: Plastic clamping brackets 9 Nm, aluminum clamping brackets 11 Nm.

- Then, perform in reverse order of removal.
- Then, perform a function load test.