Here's the deal....I have the common racing idle after warmup. After a while it goes back down again...then up.

A while ago I tested just about every suggestion I found on the board. I proceeded to remove my control unit and resoldered any joints I could.

Still have the problem. I purchased a used unit off Ebay and the problem was worse. It actually started with a very high idle and stayed there....just wouldn't kick down. I suspect the piece was not tested and I couldn't return.

So, does anyone have a known working Idle control unit I can borrow to test? If the price is fair I'll purchase if possible. If I can't purchase at least I'll know the true cause of my idle dilemma.

The Mercedes# on the part is 002 545 33 32 and looks like the pic below.

Thanks in advance.

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__________________
Rick

'85 380 SL (sold)
'85 Carrera Flatnose
'71 280 SL Signal Red/Cognac