Center Mounted Brake Lamp: Service and Repair

High-Mounted Brake Lamp (M25)

Special tools, testers and auxiliary items required

• Plastic Wedge (T10039/1)

• Failure of LEDs in high-mount brake lights:

• Individual LEDs (Light Emitting Diodes) in auxiliary brake lights are combined into groups of up to four LEDs and are supplied with power as a group.

• The high-mount brake light is designed in such a way that it still meets legal requirements when one LED group fails.

• If another LED group fails, these legal requirements are no longer met.

• When one LED group fails, the intact LEDs are given a higher load, by which failure of other LED groups can be assumed in the near future.

• If more than four individual LEDs in auxiliary brake light have failed, the auxiliary brake light must be replaced (repair measure).

Removing

- Turn off the ignition and all electric consumers and remove the key.

- Cover the area of the rear lid above the brake light with a strip of adhesive tape - 1 -.






Optional Equipment

• Cover the area above the brake lamp in the roof edge spoiler with a strip of adhesive tape.


When removing high-mount brake light, ensure seal is not damaged.

- Place the (T10039/1) - 1 - at the top between the high-mounted brake lamp - 2 - and the rear lid.






- Release the retainer for the High-mounted brake lamp by pushing the wedge - 1 - in the drive direction.






- Remove the high-mounted brake lamp bulb from the rear lid while being careful of connected wires.

- Release the locking mechanism - 2 - in - direction of arrow A - and at the same time push the compact connector - 1 - in - direction of arrow B - out of the retainer.






- Press the locking mechanism - 1 - in - direction of arrow - and remove the connector - 2 - upward.






Installing

• When installing High-mounted brake lamp bulb (M25) , ensure seal is seated correctly. Seal must not have any bulges and must not be damaged.

- Connect the harness connector and engage the compact connector to the brake lamp.

- Clip brake light into rear lid again.

- Check the High-mounted brake lamp bulb for correct function.