PeachParts Mercedes-Benz Forum - View Single Post - W124 OM 606 electrical issues- gauges dead, won't start now

Jeremy5848 · #3 10-11-2009, 02:14 AM

You have a "transition" model with the W124 body and the OM606NA engine so I'm not sure what it has in the way of an over-voltage protection relay. It may have the same kind of OVP that the older 124s have or it may have a K40 relay like the W210 cars. Either way, it sounds like something has failed, taking out the tach and gauges and now the ability to start. We need to hear from someone who is more familiar with this specific year-model. In the meantime, follow Junkman's recommendations and check the basics.