My bet is on the firewall contraption also! (Accelerator Pivot Mount
Part Number: 30-037 ) If it wiggles excessively or slides apart then it's broken. Those durn things only last twenty years or so...
Click on the Buy Parts button at the top of the Forum page and ask Hunter or Phil...

Since my car was new in '82 I have carefully used brushed-on white Lithium grease for the throttle linkages. That was on Ma Benz and the dealer's head mechanic's advice. He had been a Porshe and MB dealer in Nashville until 1960and decided to continue his love of wrenching on the Mercedes. I lucked out knowing him and still value his advice, essentially getting mentored by a craftsman.

Motor on

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Bama1


2008 SLK 280, Firemist Red - "Hurricane"
2001 F150 Lariat 4x4, Black on Black - "Badboy"
1982 240D 4 speed survivor -"Pearl" - Donated to Vietnam Veterans
1962 Oldsmobile Dynamic 88 -"Gertrude"

1954 model original owner - ~2.5M
Gray softtop/solid exterior/modified chassis