Q: Brake lights not working in 2001 Mercedes-Benz SLK320

asked by on

My brake lights won't work, but all the other back lights work. I don't think it's the actual bulb.

If both brake lights are out, you might be having an issue with your "BOO" or brake on/off switch. This is the switch that actually detects when you’re stepping on the brake pedal and sends the electrical signal to the lights. One things that is sometimes used to narrow down things is to try to turn on your cruise control. Usually if the BOO is not working, your cruise control won’t engage either. This is because it uses the signal from the switch to cancel when you step on the brake. If there is a problem with the switch it simply wont engage. I would certainly suggest seeking the aid of a professional mechanic, such as one from YourMechanic, to accurately diagnose your brake light issue. This is especially important since driving without brake lights is a safety issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Brake lights not working in 2001 Mercedes-Benz SLK320

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car noisy and losing power

There have been many reports of the turbocharger on your engine failing. Lack of power, noise, and white smoke being the top three symptoms. This is an expensive repair. If you have a power train warranty through Mazda or a...

Q: 3rd brake light on

Hello. From what you describe it would appear that your vehicle is experiencing some sort of electrical issues. If only the third brake light stays illuminated, not the left and right side brake lights, then that is a sign that...

Q: 1997 Mercedes-Benz S420 sat for months, jumped and shut off totally

It sounds as if your battery may just be completely drained on your 1997 Mercedes-Benz Tracer. A vehicle cannot sit so long without being started once in a while, or at least charging the battery from time to time to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...