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-   -   A quick and easy cruise control fix (http://www.peachparts.com/shopforum/diesel-discussion/146045-quick-easy-cruise-control-fix.html)

tenknots 02-20-2006 09:17 AM

A quick and easy cruise control fix
 
I've had four MB's over the past three years and all of them came to me with non-operational CC units. The first, a 240D just needed a rebuilt amp. The second, a 300SD, needed that plus an actuator. The last one, Strider, had a factory amp ($550!) installed a couple of years before I bought it. The CC didn't work in that one either, but since I knew I likely had a good amp, I tried a known good actuator. Problem fixed. But then I put the old actuator in my wife's car and it worked fine. Hmm. Then Strider's CC began to faintly surge. I poked around and the next day everything was OK again. The next week, the surge started again and got worse until it was surging +/- 5 mph. I use my cruise at least 2 hours a day and can't handle it not working for long.

This time, I removed the big actuator connector (located on the driver's side fender) and cleaned the pins and coated them with dielectric grease. The connector seemed a bit loose, so I used a couple of nylon wire ties to keep it firmly in the recepticle. That was a month ago and the CC has been perfect since. I think that sometimes the surging problem may be caused by a poor connection at the actuator, not necessarly a bad actuator or amp. It's worth a try!


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