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Cruise Control Surging/Bucking
I'll start of by saying that the cruise control in my 1983 300d always has worked fine since I bought the car. It engages, accelerates, decelerates, and cancels fine with the stalk on the steering column. That being said, since I got the car, when the cruise was on and I operate either turn signal, the car will surge along with the "clicks" in the signal.
Recently, however, I've been having more and more instances of it surging and bucking (the gas-brake-gas-brake feeling) even whith no turn signals on. The car started out doing this only when I'd hit a bump in the pavement (small hole, joints in the road, etc). I didn't think much of it, but then I noticed that I could duplicate the surging when I banged on the steering wheel...a little whack would start the car surging. This morning I noticed that it was doing it ALL the time...not just on bumps or on bangs to the steering wheel. I've adjusted the linkage and it is not loose, so I'm thinking it might be something electrical in the column, maybe at the stalk that is either loose or shorting out. Any ideas? Thanks, Joe
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1983 300D - 314,640 miles (not all by me) - Daily Driver --Sold-- 1983 300d - 215,000 miles (approximately) Last edited by jmcgill; 01-29-2010 at 07:28 AM. |
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Answer
The cruise stalk is bad.
The stalk is the primary issue: * It is in the column by the multi function switch. * It is directly subject to vibration when you whack the steering wheel. Fastlane: Cruise Control Column Switch http://catalog.peachparts.com/item.wws?sku=W0133-1606561 Cruise Control Repair Articles http://www.peachparts.com/shopforum/diesel-discussion/123036-cruise-control-repair-articles.html#post883130 Have a great day.
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ASE Master Mechanic https://whunter.carrd.co/ Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 2003 Volvo V70 https://www.boldegoist.com/ Last edited by whunter; 06-07-2011 at 03:54 PM. |
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Thanks!
Is it tough to remove that switch for replacement? I suspected it was something related to the column....those road vibrations are directly translated to the column.....
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1983 300D - 314,640 miles (not all by me) - Daily Driver --Sold-- 1983 300d - 215,000 miles (approximately) |
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Also before you go replacing the steering column unit open your hood and have an assistant push down on the go pedal. Do this while the engine is off of course.
See if there is any play in the linkages. My car bucked slightly before I lubcricated the linkages. Take a look and see if this is the case.
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-Typos courtesy of my mobile phone. |
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Was a new stalk the fix? Mine surges as well. It also takes about 10-15 seconds to engage initially.
Thanks,
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John Breslin 93 500E, 92 500E, 86 190E 16V, 62 220SEb Music City Chapter MBCA |
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I had the same problem and it was the cruise amp. I ran a soldering iron through it and it's all fixed.
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08 R320 CDI current Past 95 E420 87 300D Turbo 5spd 90 300TE 83 300SD 85 300TD 92 400E 85 190D |
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If I were you, I would call Peter at GDL and describe your symptoms. He's got a ton of experience with MB cruise systems.
http://gdl-online.com/begin.html
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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 156k miles 06 E320 CDI "Rutherford", Black on Tan, 173k mi, Stage 1 tune, tuned TCU 91 300D "Otis", Smoke Silver on Tan, 143k mi, wastegate conversion, ALDA delete 19 Honda CR-V EX 67k mi Fourteen other MB's owned and sold 1961 Very Tolerant Wife |
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