Electrical System Problems of Mercedes Benz R500

Mercedes Benz R500 owners have reported 5 electrical system related problems since 1996. Table 1 shows the 3 most common electrical system problems. The number one most common problem is related to the vehicle's starter (2 problems). The second most common problem is related to the vehicle's electrical system (2 problems). For details of each of the problem category, use the links in the table.

Table 1. Electrical System related problems of Mercedes Benz R500

Problem Category Number of Problems
Starter problems
2
Electrical System problems
2
Wiring problems
1

Recently reported Electrical System problems of Mercedes Benz R500

The Starter problem

As per recall#2006040002 is the exact problem I am having now. The starter wiring harness is defective and exposed, and car is disabled at mercedes mechanic site. Mbusa says it is only to certain R500s and VIN specific. I am confused since this is limited production.   Read details...

The Electrical System problem

The vehicle's rear drivers side brake or reverse light would not go off for a week (to my knowledge) and while sitting in the passenger side I turned on the heat warming device and there was no problem.   Read details...

The Wiring problem

After diagnostics found that the front sam had been under water shorting the sam and almost causing vehicle to catch fire. Would need the front sam and wiring repair along with connector replacement to move forward with diagnostic. The water is coming from the firewall on the passenger side.   Read details...




R500 Service Bulletins