Quote:
Originally Posted by VickMorrow64
I have been advised it is a bad fuel pump - diagnosis by an ex mercedes dealership - they kept the repair center going. I see an online vendor has them for $134 delivered and I have found posts on forum on how to replace fuel pump on a R107
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Since the engine will start when the key is in the START position, it is receiving fuel at sufficient pressure. Since it is receiving fuel, you may conclude that the pump is working. In addition to the relays mentioned above, it is possible that the start is being accomplished on the Cold Start Injector (CSI) only, and when the key is returned to RUN, both a relay and the CSI are shut off. In any event, pump operation is required to obtain any start at all.
Also, try posting in the SL section.