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2006 Mercedes-Benz ML500

Question: From time to time suddenly the transmission stuck to a geer and do not shift????

Question

SalemOregon, Hialeah, FL, January 29, 2012, 21:56
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I own a 2006 ML500 with 81K miles. From time to time suddenly the transmission stuck to a geer (I don't know which one, sometimes geer 2, sometimes geer 4 and sometimes geer 1) and do not shift at all. I stop and put it into P, then it will not shift at all. BUT as soon as I shutoff the engine then start it up again, the transmission shifts fine and back to normal for at least a month or so then it happens again.
One day it happens after I gone over a bad bump on the road.
One shop told me it is related to the brain controller of the transmission which cost more than $2K as part only!!! well, if it is electronic problem then how come it goes and comeback from time to time??? any thoughts???

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  • Answer #1

    Bavaria Automotive (2268 Answers) , Fort Lauderdale, FL - (954) 791-6400
    benzbimmerguy January 30, 2012, 04:35
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     Enthusiast

    Hi
    This transmission is a huge disappointment. Do you have codes?? Has latest software been uploaded???
    Cost of transmission is appox 3500 and valve body appox 2200. Do not do valvebody for 2200 when for 1300 more you can buy entire unit. Was car scanned ??

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    SalemOregon, January 30, 2012, 23:09
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    Thank you for your kind answer.
    I did my search about this valve body which should also include the conductor plat too and found the below topics.
    I will take this to my dealer and respond to you all soon.

    Thanks

    http://www.benzworld.org/forums/w163-m-class/1373758-2005...
    also, see this link with pictures
    http://www.benzworld.org/forums/r129-sl-class/1188618-97-...

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  • Answer #2

    Jonmbftl January 30, 2012, 06:25
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     Enthusiast

    Hi my name is Jonathan. I work at Mercedes Benz of Ft Lauderdale. First it sounds like a valve body issue. With out having the vehicle here to scan for codes, or do some of our own diag, i wouldn't be for sure. You are correct that the valve body is about $2200, but it is parts and labor. The new unit if around $4000, but that does not include labor to replace it. I would recommend the valve body it that was the case. I would be happy to look at it, no charge to you. Please give me a call to set up an appointment to get it check. I can be reached at 954-713-1049. Thank you

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    SalemOregon, January 30, 2012, 23:11
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    thank you for your kind offer.

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