CLK-Class (W208) 1998-2002: CLK 200, CLK 230K, CLK 320, CLK 430 [Coupes & Cabriolets]

Magic Accelerator

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Old Jan 17, 2011 | 01:32 PM
  #1  
Highpass's Avatar
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01 CLK430
Magic Accelerator

When driving in D and at around 20-30mph, my car will automagically rev up and back down from 1200 to 1000rpm over and over again, despite pressure on accelerator remaining the same. Why is this?
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Old Jan 26, 2011 | 10:33 AM
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Lot of people looked in here but not a word in response... have I got a unique problem or have I missed a previously covered topic in the search results?
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Old Jan 26, 2011 | 04:20 PM
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From: Isleworth Nr London UK of A
W208 CLK55
Odd to say the least - have you any fault codes when you've put it on Star - just a guess MAF??
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Old Jan 26, 2011 | 06:06 PM
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I have yet to take it anywhere for diagnosis, I was hoping it'd be a little simpler.

The car is misfiring upon quick release of the accelerator, but I had put that down to a buggered fuel filter due to the wife letting it run on empty. A lot.

Thanks for looking, guess I better arrange a Star diag
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Old Jan 27, 2011 | 03:47 AM
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From: Isleworth Nr London UK of A
W208 CLK55
Find your local indi who has a Star - saves a lot of guesswork and it not worth throwing parts at it if its something simple - the Star will find most problems in seconds - problem solved and your sound a bit dangerous
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Old Jan 27, 2011 | 08:13 AM
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Dangerous? Ouch... thanks i'll go find a Star indy
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