How to Replace a Mercedes 3rd Brake Light Assembly


1. Turn off the vehicle's engine.
2. Remove the lens cover on the third brake light by removing the four screws plainly visible. Pull off the lens.
3. Disconnect the assembly by pushing in the tab on the electrical connector at the rear of the assembly.
4. Disengage the two clips on the assembly and pull it out. Install the new assembly and connect the electrical connector to the rear of the assembly.
5. Reattach the lens cover and install the screws.