Mercedes Benz ML350 owners have reported 157 electrical system related problems since 1996. Table 1 shows the 15 most common electrical system problems. The number one most common problem is related to the vehicle's electrical system (120 problems). The second most common problem is related to the vehicle's wiring (10 problems). For details of each of the problem category, use the links in the table.
In mid-trip as we were going down the highway went to change lanes and the turn signals were no longer functioning. No errors, no alerts, no warnings they just stopped working. After pulling over and turning off the vehicle and turning back on they work for a time then stop working again. Read details...
Faulty wiring in the brake light harness that could cause fire. Wiring commonly arcs causing the bulbs to burn out and could potentially cause a fire. Mercedes has other cars with this same problem, but won�t address it on the Ml350�s. Read details...
While vehicle is stationary, turning key in the ignition switch may or may not start the vehicle Read details...
My m-350 had no power. The harness cable (163-540-28-32) located behind and against the battery had completely been destroyed by the battery acid environment. The cable supplies the operational power to the electrical functions of the auto. Read details...
While driving down the highway I smelled what smelled like wires burning then my windshield wipers turned on by itself and wiped at a very fast pace, then the horn started blowing (on its own) very loudly, I pulled over at a tire shop and I noticed smoke coming from the rear passenger door panel. Read details...