Upper Electronic Module (UEM)/Rearview Mirror, Replacing

Upper electronic module (UEM)/rearview mirror, replacing

Removal

Preparatory information

Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Note! A rear view mirror with manual function cannot be replaced with automatic anti-dazzle or vice versa. The system will store diagnostic trouble codes (DTCs). The upper electronic module (UEM) is integrated in the rear view mirror.

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 VIDA vehicle communication.

Caution! New software can only be ordered when the control module is installed in the car. VIDA reads off the new control module identity which is required to order the correct software.

Note! Always check that the control module and control module box connectors do not have bent or damaged terminals or socket / sleeves. This may have been the cause of a fault.

Preparatory work
Remove the interior lighting. See Interior lighting, replacing Replacing Interior Lighting.

Removing the rear view mirror/control module




- Remove the cover over the connector for the rear view mirror and control module
- Remove the cable spring using a screwdriver
- For rear view mirrors with manual anti-dazzle: Flip the anti-dazzle button toward the lens.




Disconnect the connector by pressing the catch using a small screwdriver.

Installation

Installing the rear view mirror and control module
Connect the connector.
- The cable spring
- The connector cover
- The interior lighting. See Interior lighting, replacing Replacing Interior Lighting.

Ordering software
Order software according to the table below.