PeachParts Mercedes-Benz Forum - View Single Post - Idle Hunting Behavior on 617 Turbo Engines

JHZR2 · #6 11-28-2010, 09:10 PM

May be true...

I had idle shake and the hunting since I got the car. Starting wasnt perfect either, but generally no big deal. Adjusted rack damper to fix idle, made starting tougher, no real fix. Pulled rack damper out and starting got easier, still have the shake.

Tested (cold) compression, got good numbers, though #4 may be off a tad.

Not sure if the #4 cylinder or a possible air leak would be the culprit. I dont noticeany air leaks, though it did seam tough to reprime the system after changing the secondary filter...