This 10/89 300SEL (126.025) has a MAS control unit, instead of a fuel pump relay, to handle fuel pump and cold start functions (despite the fact that the wiring diagrams all say that the MAS substitution didn't start till 5/90). The cold start valve on this car has three wires going to it, one circuit has brown w/ violet and the other circuit has two red w/ gold wires. None of the diagrams show three wires. I'd like to know where these three wires go (don't see these wires going into the MAS). Can anyone refer me to the correct fuel delivery/start wiring diagram? Thanks.
10-15-2008, 01:37 PM
Linear Mode
