Mercedes Benz 300 owners have reported 13 electrical system related problems since 1996. Table 1 shows the 7 most common electrical system problems. The number one most common problem is related to the vehicle's wiring (3 problems). The second most common problem is related to the vehicle's car will not start (3 problems). For details of each of the problem category, use the links in the table.
Wiring harness caught fire while in shop for repairs. Read details...
The contact owns a 1999 Mercedes Benz 300. The contact stated that he attempted to start the vehicle but the engine would not start. The contact exited the vehicle and tried to lock the doors but noticed that the key was not working. Read details...
The contact stated the battery ran down without any cause or warning. The vehicle was taken to the dealership three times and they were unable to duplicate the problem. The repairs will be made under warranty. Read details...
Car is mis-firing and was told by the mechanic that the engine harness just crumbled when he touched it. The entire harness needs to be replaced. Read details...
Driving at 70 mph on cruise control and electronics on front dash went blank, car decelerated, and I had to get off the road before it stopped. Car would not start for approximately 30 minutes. Was able to restart and drive to safety. Read details...