Yep -- the microswitch.

I recall your earlier comments about the TPS, but don't know where the throttle valve shaft is (I only examined the throttle linkage for the first time last week.)

I know for sure microswitch is faulty, and will check the TPS next, once I find it.

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2008 E350 4matic / Black/Anthracite

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Gone but not Forgotten:
2001 E430 4matic, 206,xxx miles, Black/Charcoal
1995 E320, 252,xxx miles, Black/Grey
1989 260E, 223,00 miles, Black/Black