Why is the back light and brake light not working on my mercedes

While I'm not overly familiar with Mercedes, I'd assume that it still has a brake light switch located on the bar of the brake pedal itself. This switch is typically just a "plunger" style switch, where when you push the pedal down as if applying the brakes, the plunger extends outward turning the brake lights on. When the pedal is released, as if letting off the brakes, the plunger is depressed causing the lights to shut off. If that plunger gets stuck in a depressed position, the lights will remain off at all times. Check that first, along with the brake light fuse and/or relay. Good luck.

Hi. Thanks for your question. For issues related to brake warning lights on dash illuminated for Mercedes C180, 1996 saloon. You can visit https://www.reliable-store.com and download the entire workshop manual which includes all the information along with the diagrams for better understanding. Good day!

they dont realse a lot of info on those cars . check the brake light switch in the brake pedal could have a short in it .

Rick,
The brake lamps on your Mercedes are computer-controlled. I would recommend scanning your computer network for possible fault codes.

You have a simple plunger switch on the brake pedal. This can be lubricated or replaced. Simple job.

It is OK to drive it I recommend you fix it when you can It is most likely the stop lamp switch located on the back of the brake pedal part is 25-35 dollars depending on where you live have it tested before replacing. If it tests good you have a faulty brake sensor in one of your wheels check brakes

check and make sure the brake light are working, the brake light circuit must be activated to release the safety park interlock system, this system uses a solenoid, if the brake lights do work then the solenoid may be bad or the pin is stuck in the shifter.

Try checking the brake light sending unit. Are your brake lights even working. Many newer vehincles will not shift out of park unless the brake pedal is depressed. However, a faulty sendind unit located on the pedal itself can keep you from moving anywhere. Just check to see if your brake lights are working to know if the sending unit is working.