C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

funny behavior of my Coupe.

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Old Sep 28, 2007 | 09:14 PM
  #1  
fanito's Avatar
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02' C230k Sport Coupe
Unhappy funny behavior of my Coupe.

Lately my car at a "steady" high speed (70mph) is experiencing a little bit of a pulsating jerk. This is kinda wierd because it doesn't happen in lower speeds. Feels like the car is slightly pushed from the back in a constant, non stop manner. Any ideas

BTW, it has 70k miles already
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Old Sep 28, 2007 | 10:49 PM
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Originally Posted by fanito
Lately my car at a "steady" high speed (70mph) is experiencing a little bit of a pulsating jerk. This is kinda wierd because it doesn't happen in lower speeds. Feels like the car is slightly pushed from the back in a constant, non stop manner. Any ideas

BTW, it has 70k miles already
I had this and the dealer replaced the MAF.
Try cleaning it, maybe all thats wrong.

Also it's a good time to replace the fuel filter, which can be fairly easily done
with the rear of the car on ramps...AND while you're at it do the spark plugs if they haven't been done.
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Old Sep 28, 2007 | 11:11 PM
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C55 ///AMG, 535xi
I've had that experience as well....I think i might have to replace the MAF
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Old Sep 29, 2007 | 08:33 PM
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02' C230k Sport Coupe
Ha! well, I learn new things every day. I asked the MAF around and the sucker is pretty expensive (+$300). What do you think about this one? Looks kosher? is not bad at all (considering the other ones) http://cgi.ebay.com/ebaymotors/ws/eB...m=180159311640
Do you guys have by any chance the part number?
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Old Oct 4, 2007 | 02:14 PM
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02' C230k Sport Coupe
no answers? helpy please?
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Old Oct 4, 2007 | 04:21 PM
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That's the lowest priced one I've seen or heard of. There's been some complaints about getting a bad MAF from ebay but I believe most of the problems were with the installation/set up. A new MAF, even if it's good, doesn't necessarily make the car run better until after it's been in the car for a while <or> if the adaptation values have been reset to normal (requires Star diag).
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Old Oct 4, 2007 | 05:34 PM
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Don't replace it yet. Try cleaning it first... unless yer made of moo-lah. Go to Advance Auto and get MAF cleaner. It's in a spray can that is white, black and red and says right on it "MAF cleaner". It'll set ya back about $5 to $6. Fixed the exact same problem I had.
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Old Oct 4, 2007 | 09:25 PM
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done. ima go to autozone and see if theres this MAF cleaner!
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