Electrical System Problems of Mercedes Benz C320

Mercedes Benz C320 owners have reported 72 electrical system related problems since 1996. Table 1 shows the 16 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (23 problems). The second most common problem is related to the vehicle's battery (14 problems). For details of each of the problem category, use the links in the table.


Recently reported Electrical System problems of Mercedes Benz C320

The Electrical System problem

The contact owns a 2003 mercedes-benz C320. The contact stated that the sunroof had failed to open, and the sunshade cover failed to close, causing the sunrays to penetrate the vehicle. The vehicle was taken to the dealer, where an unknown assessment was made. The vehicle was not repaired.   Read details...

The Battery problem

The contact owns a 2002 Mercedes Benz C320. The contact stated that the battery continued to fail each time the vehicle was started. The vehicle was taken to the dealer who advised that the seat module was draining the battery that was located under the front driver and passenger seats.   Read details...

The Car Will Not Start problem

Tl- the contact owns a 2002 Mercedes Benz C320 wagon. The contact stated that the battery continued to drain after turning the vehicle off and the vehicle would not start. The vehicle was taken to the local mechanic who diagnosed the driver side electrical seat module was faulty causing the battery   Read details...

The Battery Dead problem

My battery keeps draining. When I look at the display screen it only states that the front right light is out. When I had two mechanics look at it and they stated that my battery is being drained due to my seat function not working properly. After not using my battery for hours it dies.   Read details...

The Alternator/generator/regulator problem

I have a 2002 mercedes c-320 car that the battery will not hold a charge! I had the mercedes dealer come to my home and put in a new battery. After spending $300 and 2 days later the new battery was dead. I was told it could be the alternator/regulator by the mb dealer and the cost would be $1,200.   Read details...




C320 Service Bulletins
C320 Defect Investigations