Brake Lamp: Service and Repair

High-Mount Brake Lights

--> [ High-Mount Brake Light, Sedan ]

--> [ High-Mount Brake Light, Wagon ]

High-Mount Brake Light, Sedan

• 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).

CAUTION!
• Turn off the ignition and all electrical consumers.

• Remove ignition key.

Removing

- Remove the roof end strip.

- Disconnect connector - 1 -.





- Press the High-mount Brake Light (M25) - in direction of arrow - toward rear window.

Installing

Install in reverse order of removal, noting the following:

- When installing High level brake light bulb (M25), ensure seal is seated correctly.

High-Mount Brake Light, Wagon

The High-mount Brake Light (M25) is located in the roof edge spoiler above the rear window.

The light for the High-mount Brake Light (M25) is generated by LEDs.

The High-mount Brake Light (M25) cannot be disassembled.

If damaged, the entire High-mount Brake Light (M25) must be replaced.

Special tools, testers and auxiliary items required

• Trim removal wedge (T10039/1)

CAUTION!
• Turn off the ignition and all electrical consumers.

• Remove ignition key.

• When removing and installing components in a visible area (switches, covers, trim, etc.), cover areas where a prying tool (T10039/1), trim removal wedge (VAS 3409) or a screwdriver) will be used with commercially available adhesive tape.

• When removing the High-mount Brake Light (M25), ensure the seal around it is not damaged.

Removing

- Place the (T10039/1) between the upper edge of the high-mount brake light (M25) and the roof edge spoiler as illustrated.





- Push the high mounted brake lamp bulb (M25) with the (T10039/1) and disengage the upper tabs.

- Pull High-mount Brake Light (M25) toward rear out of installation opening in roof edge spoiler, paying attention to lengths of connected wires.

- Disengage and disconnect harness connector - 1 - and remove High-mount Brake Light (M25) - 2 -.





Installing

• Make sure seal has proper fit when installing High-mount Brake Light (M25). Seal must not have any bulges and must not be damaged.

- Connect the connector on the High-mount Brake Light (M25).

- Clip the High-mount Brake Light (M25) back into the roof edge spoiler, beginning with the bottom edge.