PeachParts Mercedes-Benz Forum - View Single Post - ignition buzzer and dome light relay location

Jeremy5848 · #7 01-30-2009, 01:56 AM

Yes, you can either buy a factory tool (pair of hooks), an aftermarket version of the same thing, or make a pair from stiff wire (coat hanger wire works fairly well). Insert the hooks at the left and right edges of the cluster where they will catch on serrations built into the plastic casting. You may want to disconnect the battery first; not absolutely necessary but nice if you are pulling the cluster for the very first time.

If the cluster has never been out, it will be a tough pull the first time (the rubber pads tend to stick), just keep at it. You need to release the speedo cable from its hook at the base of the steering column, then pull the cluster out enough to get your hand in and unscrew the cable from the speedometer. Then unplug all of the various cables. I like to start at the right side but do whatever works best for you. The lamps in the right-hand row come out on pigtail leads while the ones on the left side stay with the cluster. Once all the wires are unplugged, the only thing left is to unplug the rubber hose for the "Economy" gauge and the cluster is free. Adjust the steering wheel all the way out to make room and carefully lift the cluster out. With the cluster out, you will be able to see into the hole and determine whether that relay is unplugged.