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Cruise Control Issue on 85 500SEL

922 views 1 reply 2 participants last post by  mclare 
#1 ·
Hi Folks,

On my 500SEL the cruise control appears to be trying to work but hunts with wide throttle excursions. What I mean by that is that when trying to maintain speed going up a grade, it will go to WOT then back off then WOT then back off. Since my experience with Mercedes cruise controls is limited to 123's and those tend to either work or are completely dead I'm puzzled. Since the car was only driven around town by the PO, I am guessing that the linkage is sticky and needs to be cleaned and lubricated. Any suggestions or pitfalls I may run into? I don't want to be chasing flying circlips all over the yard if at all possible.

Any suggestions would be appreciated.
 
#2 ·
Replace the cruise control amp.
 
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