2006 C230S - Transmission "Valve Body" cracked - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 06-15-2010, 12:55 PM Thread Starter
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2006 C230S - Transmission "Valve Body" cracked

*Was urged to post this in a "newer" forum, not sure if this is the right place, but here goes. Mods, please let me know if this is a problem)

Dad purchased a 2006 C230 Sport brand new, and since about 6-8 months ago we've been having an issue with the transmission. To sum up, the engine simply does not switch gears properly, and often stays "stuck" on 1st or 2nd gear when driving. The "check engine" light has also come on a few times. Figured that it was just in need of a transmission flush, so I brought it into service. After taking it into service, I was told that the issue is that the "valve body" in the transmission is cracked, as a result of hard upshifts or downshifts.

What stumps me is the following:
-The car has NEVER been driven hard at all, always on "D." We never used the "tiptronic" shifting capability.
-Car is now out of warranty, so we're being quoted $2K+ to fix this issue
-Car has been babied, and all the usual normal service has been done at the *gulp* dealership... no problems were noticed before.

What I wanted to see was if anyone else had a similar problem like this? Even the service guy told me that this is an extremely RARE issue, and I'm beginning to wonder if it's due to a defect...

Any helpful thoughts would be appreciated, especially if someone has had a similar issue.
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post #2 of 3 (permalink) Old 06-15-2010, 01:35 PM
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Hey niceaznguy

Hey niceaznguy,
Can you be more specific on what kind of car? There are 3 versions of C230 kompressor coupe, sedan, or just regular c230. There are two types of trans in this car 722.6 and 722.9 trans. Now i do have both in stock and if i stock them then yes it is very common for both. I have sold six in the last 2 months. Now as for the price of 2k sounds about right. Now we sell it for less but the average of list price on parts at a dealership $1450.00 and labor about 4hrs at average labor rate at $120.00 x 4 =$480.00. You really can't do it yourself because they have to program your valve body to the tranny.

Last edited by MBNANUET1; 06-24-2010 at 06:49 PM.
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post #3 of 3 (permalink) Old 06-15-2010, 01:55 PM Thread Starter
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yeah, that's what i've been quoted thus far.

it's a 2006 C230 Sport Sedan.
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