My glow plug timer seems to have stopped working on my 1980 300CD. The dash
light flashes but will not stay on with the ignition switch at position 2. I
went through the diagnosis section in the mercedes engine manual and everything
checked out. I replaced the glow plug timer and the new one acts the same as
the old one. There is still no current going the glow plugs.
I've checked the resistance of all the glow plugs along with the lines to the
plugs. I've also checked the resistance of the lines to the temperature
sensors? I believe there are two in the head. The sensors seem fine. Now I'm
really annoyed, plus I have a $174 part which I hope is not defective. The
glow plug timer on my 1980 300CD was used for exactly one model year.
Any suggestions are most welcome.