How to Replace a Mercedes 3rd Brake Light Assembly

by Daniel Valladares

The third brake light assembly, also known as the high-mount brake lamp, is an important safety component of your Mercedes-Benz vehicle. Replacing the brake light assembly entails purchasing an entirely new assembly from your local Mercedes-Benz dealer. The replacement process is very simple and only requires the use of a Phillips-head screwdriver. The entire procedure takes only a few minutes.

Turn off the vehicle's engine.

Remove the lens cover on the third brake light by removing the four screws plainly visible. Pull off the lens.

Disconnect the assembly by pushing in the tab on the electrical connector at the rear of the assembly.

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.

Reattach the lens cover and install the screws.

Items you will need


About the Author

Daniel Valladares began his career as a medical writer in 2008. He has written patient education brochures for several pharmaceutical companies and has worked as an auto mechanic at Kim's Speedy Auto Service since 2007. Valladares holds a Bachelor of Arts in English from Rice University and is currently studying to become a personal trainer.