Q: Frequent flickering of interior / dash board lights.

asked by on

I have a problem with flickering interior lights/dashboard illumination. This now happens rather frequently. In one instance I decided to floor the accelerator pedal to check how the engine would react. Car responded very well but at high rpm it jerked once or twice. A little while later at the fuel station while idling and waiting to be served, the car just went dead. All lights went off like the battery was disconnected. In less than 3 mins, lights came back on their own and I was able to start and operate vehicle normally. I am wondering what the problem is ?

My car has 55000 miles.
My car has an automatic transmission.

Your car has about a dozen modules spread around the body that control various functions. I have dealt with a similar problem in the past and eventually found a connector on one of the SAM’s (signal acquisition modules) that was not pushed all the way onto it’s socket. When the car hit a bump, it would temporarily lose many of its electrical functions. Finding this kind of problem can be very time consuming because the electrical system of your car is so complicated. But the diagnosis would begin at the batteries and charging system and work through the car. If you contact Your Mechanic, they can send a technician to your home or office to check out your Mercedes and tell you what it will take to solve your problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Frequent flickering of interior / dash board lights.

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: How to fix jammed safety belt.

You may have to remove the rear seat to get to the retractor for the seat belt. The only suggestion is to try and pull it out very slowly. If it has a bad locked retractor the retractor would need...

Q: What's wrong with my gas pedal?

Hello. This may be related to what is called a throttle position sensor. This is a small sensor inside the intake system of your car that monitors the position of your foot on the gas pedal and relays this information...

Q: Red Lightning symbol on dash

Hi There, The red lightning bolt symbol indicates that there is something wrong with the throttle body in your fuel injection system. This may be a faulty throttle body, the throttle body sensor or possibly the throttle body control motor...

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...