Power Mirror Control Module: Service and Repair

Replacing The Lens And The Bulb







Removal
- Fold down the cover.
- Press the catches outwards. Remove the lens
- Remove the bulb. Use a weatherstrip tool or similar.

Replacing the lens and the bulb

Installation
- Install the bulb
- Press the lens into place
- Press the cover into place.

Replacing the bulb holder in the rear view mirror unit
The upper electronic module (UEM) is integrated in the rear view mirror.

Removal







- Remove the lens
- Remove the 2 screws at the front edge
- Press the 2 rear catches forward
- Press two of the catches on one side inwards. Remove the bulb holder
- Disconnect the 2 connectors
- Disconnect the ground lead.

HINT: Only certain versions of the upper electronic module (UEM) have a ground lead.

%�a:

- Remove the cover over the connector for the rear view mirror and control module.
- Flip the anti-dazzle button toward the lens. Disconnect the connector in the rear view mirror and control module by pressing the catch through the opening. Use a screwdriver
- Remove the bulb holder together with the rear view mirror and control module.

Replacing the bulb holder in the rear view mirror unit

Installation
- Connect the connector for the rear view mirror and control module
- Reinstall the cover for the rear view mirror and control module connector
- Connect the 2 connectors
- Install the ground lead
- Press the bulb holder into place
- Install the 2 screws at the front edge.

CAUTION: Check that the microphone cable is not trapped (if applicable).

- Install the lens.

HINT: Only certain versions of the upper electronic module (UEM) have a ground lead.

Replacing the switch for the interior lighting

Removal
- Remove the lens.
- Remove the bulb holder.
- Remove the bulbs
- Remove the screws
- Remove the back piece from the switch
- Detach and remove the printed circuit board and switch.

To replace the switch for the sun roof.

Replacing the switch for the interior lighting

Installation
- In reverse order.

Rear view mirror, replacing

NOTE: A rear view mirror with manual function cannot be replaced with automatic anti-dazzle or vice versa. The car will store diagnostic trouble codes (DTCs).

The upper electronic module (UEM) is integrated in the rear view mirror. To remove the rear view mirror.

Replacing the upper electronic module (UEM), or the rear view mirror

Preparations

NOTE: Read off data from the control module before replacing the control module. Program this data back into the new control module.

Programmed data is read off via VADIS vehicle communication.

CAUTION: New software can only be ordered after the control module has been installed in the car. VADIS reads off the new control module identity which is required to order the correct software.

Always check the control module and connector on the control module box for bent or damaged pins or sockets. This may have caused the fault.

Removing the control module







- Remove the lens
- Remove the 2 screws at the front edge
- Press the 2 rear catches forward
- Press two of the catches on one side inwards. Remove the bulb holder
- Disconnect the 2 connectors
- Disconnect the ground lead.

HINT: Only certain versions of the upper electronic module (UEM) have a ground lead.







- Remove the control module connector cover.







- Flip the anti-dazzle button toward the lens. Disconnect the connector in the control module by pressing the catch through the opening. Use a screwdriver
- Remove the screw from the control module
- Remove the control module.

Check
Check that the control module connectors are intact.

Installing the control module
- Screw the control module screw into place
- Connect the connector for the control module
- Reinstall the cover for the control module connector
- Connect the 2 connectors
- Press the bulb holder into place
- Install the ground lead
- Install the 2 screws at the front edge
- Install the lens.