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  #1  
Old 12-11-2007, 11:06 PM
apb apb is offline
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Join Date: Mar 2001
Location: Houston, Texas
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1997 E420 transmission software

I never really liked the way my transmission shifts (still the same as 120000 miles ago). I recall the dealer doing a valve body upgrade 4 years ago or so. Is there a better software that would make the transmission downshift better (that is my main complaint, the delay). I almost always drive the car moving the shifter when I need to download and pass. Thought I would asked those in the know if there is a software upgrade, or a particular version I need to ask the dealer to make sure is installed.

Any help would be appreciated. My car was manufacture in October 1997, end of production for the 97 E420 (I now have 142k happy miles).

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2008 S550
2010 GLK350
1997 E420 (retired)
2005 CLK500 (retired)
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  #2  
Old 12-12-2007, 08:01 AM
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If the valve body was replaced with the "later" version the trans computer SHOULD have been replaced at the same time!

New valve body & old computer is a mis-match.
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  #3  
Old 12-12-2007, 02:31 PM
apb apb is offline
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Ok, thanks! It is just one annoying transmission, but I can live with it

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2008 S550
2010 GLK350
1997 E420 (retired)
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