Wiring Problems of Mercedes Benz GL450

While driving at highway speed in the left lane of a divided highway, the vehicle suddenly and without notice lost engine power and power steering. The weather condition was light rain and the road was wet. I was able to move over to the shoulder of the highway and restart the engine but it died within two to three seconds. I then restarted the engine several more times and was able to maintain a running engine after about 5 restart cycles. The engine loss of power has been traced back by a mercedes repair center to a malfunction of the electrical wiring harness connected to the fuel pump in the gas tank. This incident demonstrates that the electrical system malfunction reported under item #10745399 occurs in wet road conditions and not just when traveling over a puddle. Mercedes refuses to repair this safety related defect under warranty.

See all problems of the 2012 Mercedes Benz GL450 🔎.

Head lights went off in the while traveling due to defecting wiring system. According to experts mb used an inferior and unsuitable material for the insulation on the electrical wires of some of the Gl450 models. This insulation prematurely disintegrates under normal use causing the wires it is designed to protect and insulate, to short causing many problems.

See all problems of the 2007 Mercedes Benz GL450 🔎.