BenzWorld Junior Member
Date registered: Jul 2013
Vehicle: 1989 300E 3.0L auto German Import
Location: Helena MT
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My first MB. 89 W124 with a rough idle
I picked up a 300e. It runs great, lots of power and smooth shifting. It however doesnt like to idle. So much so that it won't run without holding throttle. So far I found that the throttle linkage was missing a small micro switch under the air cleaner, and repaired that, with some improvement, and I found a vacuum leak, a small vacuum line from the front of the intake manifold to a small valve/sensor on the front of the head and back under the car. I don't know that this sender/sensor/valve is, but one ear is broken off and not repairable. Help ID'ing it?