Front Door Window Regulator: Service and Repair
WM 573019 Removing and installing door sub-frame
Technical values
Preliminary work
1. Disconnect electric lead for door. -> 973219 Removing and installing wiring harness for door - section on "Removing" 97321900 Removing and installing wire harness for door
2. Remove door trim panel. -> 705919 Removing and installing door trim panel - section on "removing" 705919 Removing and installing door panel
3. Remove power window motor. -> 645219 Removing and installing front power windows - section on "Removing" 645219 Removing and installing front power windows
4. Remove head airbag. -> 696619 Removing and installing head airbag unit - section on "Removing" 69661900 Removing and installing head airbag unit
Removing door sub-frame
Covering door with adhesive tape
Overview, door unit carrier
Information
- Adhesive tape protects the door from paint damage when removing the door unit carrier.
1. Cover door in marked area with adhesive tape.
Covering door with adhesive tape
Disconnecting electrical plug connection
Installation position of rear-view mirror
1. Disconnect the plug connection of the mirror housing -3-.
Disconnecting plug connection
Releasing door sub-frame
Overview of door sub-frame
Information
- A second person is required for removing the door unit carrier to avoid damage.
1. Press rubber sleeve for electric line -1- and bowden cable -2- inwards.
Pressing in rubber sleeves
2. Release the power window regulator -1- from the door sub-frame -2- at the retaining clip -arrows A- and press it in -arrow B-.
Releasing power window regulator
3. Release retaining clip -1- on bowden cable for power windows -arrows-.
Releasing bowden cable
4. Unscrew fastening screws -2- on the door sub-frame -1-.
Releasing door sub-frame
5. Press the rubber sleeve on the wire harness inwards and pull the wire harness out through the door aperture.
Pulling out wire harness
6. Pull the bowden cable -2- out of the sub-frame -1-.
Pulling out bowden cable
Disconnecting electrical plug connection on microswitch
Overview, door unit carrier
Information
- A second person is required for removing the door unit carrier to avoid damage.
1. Unlock the electrical plug connection for the microswitch -1- by pressing the locking tab -arrow A- and remove -arrow B-.
Disconnecting the microswitch plug connection
Disconnecting the door lock electrical plug connection
Overview, door unit carrier
Information
- A second person is required for removing the door unit carrier to avoid damage.
1. Unlock the electrical plug connection for the door lock -1- by pressing the locking tab -arrow A- and remove -arrow B-.
Disconnecting the door lock plug connection
2. Remove door unit carrier.
Installing door sub-frame
Locking electrical plug connection for door lock
Overview, door unit carrier
Information
- A second person is required for removing the door unit carrier to avoid damage.
1. Lock electrical plug connection for door lock -1- until the plug audibly engages.
Locking plug connection for door lock
Locking electrical plug connection for microswitch
Overview, door unit carrier
Information
- A second person is required for removing the door unit carrier to avoid damage.
1. Lock electrical plug connection for microswitch -1- until the plug audibly engages.
Locking plug connection for microswitch
Securing door sub-frame
Overview of door sub-frame
Information
- A second person is required for removing the door unit carrier to avoid damage.
1. Slide bowden cable -2- through the sub-frame -1-.
Pushing bowden cable through
Information
- Make sure that the wiring harness is not twisted through the door opening when fitted.
2. Slide the wire harness through the door aperture from inside and press the rubber sleeve on the wire harness into the door aperture from inside.
Pushing wire harness through
3. Use assembly string -1- to clip a new retaining clip on the bowden cable for power windows -2- and pull the assembly string through the door sub-frame -3- ( -arrow- ) until the retaining clip engages securely.
Securing bowden cable
4. Cut off the assembly string with side cutters.
5. Install rubber sleeve for electric line -1- and bowden cable -2- in the sub-frame until it engages securely all the way around.
Installing rubber sleeves
6. Tighten fastening screws -2- on the door sub-frame -1-. => Tightening torque: 9.7 Nm (7.5 ftlb.)
Securing door sub-frame
7. Press in power window regulator -1- on the door sub-frame -2 - ( -arrow- ) until the retaining clip engages securely.
Clipping in power window regulator
Locking electrical plug connection
Installation position of rear-view mirror
1. Connect the plug connection of the mirror housing -3-.
Locking plug connection
Removing adhesive tape
Overview, door unit carrier
1. Remove adhesive tape, clean marked area if necessary.
Remove adhesive tape.
Subsequent work
1. Install head airbag. -> 696619 Removing and installing head airbag unit - section on "Installing" 69661900 Removing and installing head airbag unit
2. Install power window motor. -> 645219 Removing and installing front power windows - section on "Installing" 645219 Removing and installing front power windows
3. Install door trim panel. -> 705919 Removing and installing door trim panel - section on "installing" 705919 Removing and installing door panel
4. Lock electric lead for door. -> 973219 Removing and installing wiring harness for door - section on "Installing" 97321900 Removing and installing wire harness for door