dale1

my 2003 MB C230 Kompressor fuel pump went out so I bought one online. Like everyone else the plugs do not match. I bench tested my old unit and it works. I decided to keep the new unit and buy the sender unit which will match the new fuel pump. Everything in, almost done and I'm connecting the sender pin to the car wire. The sender has a 5 pin connector and the car wire connector is a 4 pin. now what? please any suggestions would be much appreciated. thanks