Table 1 shows one common exterior lighting related problems of the 2007 Mercedes Benz E63.
| Problem Category | Number of Problems |
|---|---|
| Brake Light problems |
Several tail lamps quit working. I had a warning on the car display listing numerous lights on the trunk inoperative. The license plate lamp, 3rd brake light, and the auto open and close of the trunk were inoperative. Also, the emergency trunk release function inside the trunk would not light up and would not open the trunk. I searched a mb web forum to see if anyone else had the same problem. There are numerous cars from several year groups that are having the same problem. I traced the problem to 1 broken wire in a wiring bundle attached to the left hinge of the trunk. It appears that the design and placement of this wiring bundle is causing the wiring bundle to flex and over time, with the opening and closing of the trunk, the wires are breaking. Since I had reduced capability in brake lights, I accomplished the fix myself to repair the broken wire. This fix only lasted several months before the same thing happened again. I have now "fixed" it myself 3 times. I have my car at the Mercedes Benz dealer currently and mentioned the problem to them. They are aware of it and want to charge me to fix it. I feel this should be a covered service bulletin since it is happening to numerous cars now. This is a design flaw in the location and placement of this wiring bundle and could lead unexpectedly losing some, if not all, brake lights. Also, if someone gets locked in the trunk and the wire is broken, they have no way of opening the trunk.