Two problems related to electrical system have been reported for the 2007 Mercedes Benz SL550. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Mercedes Benz SL550 based on all problems reported for the 2007 SL550.
I purchased this vehicle in a private sale in September 2025. The battery warning light was on and the radio was not working either. I had the vehicle inspected by the mercedes dealer and was told the batteries were being drained because the bcm (battery control module) I was told there was nothing they can do because mercedes discontinued the replacement parts. So I started to investigate the bcm issue in this model and come to find out when they go bad the vehicles will get on fire, many owners around the world have posted the burned bcm & cars as well. I manage to take my bcm out and opened for inspection and is burned out, I was lucky the car did not catch fire. I have pictures. This should be a recall, anything that could ignite the vehicle should be a recall.
Complete failure of the instrument cluster. . . Fuel gauge / odometer / speed / tachometer / turning signals / temperature.
| Electrical System problems | |
| Trunk Wiring problems |