Electrical System Related Problems of the 2007 Mercedes Benz SL550

Table 1 shows two common electrical system related problems of the 2007 Mercedes Benz SL550. The number one most common problem is related to the electrical system (two problems). The second most common problem is related to the trunk wiring (one problem).

Table 1. Electrical System related problems of Mercedes Benz SL550

Problem Category Number of Problems
Electrical System problems
2
Trunk Wiring problems
1

Recently reported Electrical System problems of the 2007 Mercedes Benz SL550

The Electrical System problem

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   Read details...

The Trunk Wiring problem

This vehicle caught fire on its own while parked in a locked garage. The fire was in the trunk and involved various electrical and mechanical components and wiring harnesses. The car filled with dense smoke which coated everything with thick soot.   Read details...


Electrical System related problems in other Mercedes Benz SL550 model year vehicles:



SL550 Service Bulletins
SL550 Defect Investigations