Mercedes-Benz Electrical Nightmare – Fire caused by convertible pump

Is your 2008 Mercedes-Benz CLK550 convertible top not working, and there’s no sound coming out from the radio? One possible issue causing the problem is a fire caused by a convertible pump, and Mercedes-Benz owners and mechanics call it an electrical nightmare where the cables are burnt.

The side windows only go down a little as you press the button to open the top. Then nothing happens. Scanning the car gave a code for the convertible top pump having an open circuit.

We decided to check the fluid level and fuses.

As we accessed the convertible top pump on the left side of the trunk, we were shocked to find out that the whole wire harness was completely burned up.

Right above the convertible top pump is the amplifier. The wire harness for the amplifier and also the optical lines were melted. This explains why there is no sound from the head unit even though it turns on.

In addition, the hydraulic lines to operate the trunk during the convertible operation were damaged.

Since the lines had melted, they had leaked all the hydraulic fluid. This is what many Mercedes-Benz owners and mechanics call an electrical nightmare.

The cause of this fire seems to have been the convertible top pump. It is hard to tell exactly if it was the relay by the pump or the pump itself, as almost everything on this pump is burned up. While this is not a cheap repair, looking on the bright side, the whole car didn’t burn down.

We hope you find the Mercedes-Benz Electrical Nightmare – Fire caused by convertible pump guide helpful. Check these troubleshooting and repair guides for more help on your Mercedes-Benz.