1985 300d. The lone electric microswitch on the valve cover. Looks like it gets triggered only at full throttle. What does this do? Mine actually seems to be out of adjustment so even at full throttle you need to push it in just a bit further with your finger before you can hear the click. What is the purpose of this switch? I found lot's of info on earlier model year "3/2" valves with vacuum lines running on the valve cover, but this is distinctly different, only two small electrical wires going to this one.

__________________
1985 300D 231K anthracite grey w/black int.

Turns off the A/C compressor at WOT.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Thanks. Wanted to make sure it had nothing to do with the vac system

__________________
1985 300D 231K anthracite grey w/black int.