Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi, my name is***** overvoltage protection relay located in the right rear corner of the engine compartment powers the cold starting system and the fuel mixture control. If the relay is bad or the fuse in the top of the relay is blown the car will be hard to start and will not run well until it warms up. Click on the attachment below for the relay location. You can barely see it in the picture. It sits down behind the silver relay with the block knob on top of it.
Let me know if you have any questions. Please remember that you must rate my service in order for the website to credit me for answering your question.