S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Rough shift quality...

Old Mar 15, 2006 | 03:52 PM
  #1  
konigstiger's Avatar
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From: North Scottsdale, AZ
'71 Pinto
Rough shift quality...

Current MBUSA transmission bulletin includes the 221:

P-B-27.60/61b JAN06 7G-Tronic Transmission Rough Shift Quality

Last edited by konigstiger; Jul 1, 2006 at 06:31 PM.
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Old Mar 15, 2006 | 04:37 PM
  #2  
Nevada Jack's Avatar
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From: Las Vegas, NV
2011 E350 Cabriolet..White and Almond Mocha
Originally Posted by konigstiger
Current MBUSA transmission bulletin includes the 221:

P-B-27.60/61b JAN06 7G-Tronic Transmission Rough Shift Quality
I note this one deals with some small clip as opposed to the Valve Body cure. I had the problem in my S430 and they replaced the Valve Body and that was in January. Smooth as silk since.

Thanks for posting...
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Old Mar 16, 2006 | 12:16 AM
  #3  
Germancar1's Avatar
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2013 650i Coupe, 2010 IS250 AWD, 1999 S500
I must say that MB really needs to get a grip on this little niggling problems. I mean it really isn't a "big" deal, but it keeps them from getting good marks in the surveys. Something that simple should have been caught long time ago and cars in production every since they found the problem shouldn't have this problem.

M
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Old Mar 16, 2006 | 08:09 AM
  #4  
Nevada Jack's Avatar
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From: Las Vegas, NV
2011 E350 Cabriolet..White and Almond Mocha
Originally Posted by Germancar1
I must say that MB really needs to get a grip on this little niggling problems. I mean it really isn't a "big" deal, but it keeps them from getting good marks in the surveys. Something that simple should have been caught long time ago and cars in production every since they found the problem shouldn't have this problem.

M
I agree but this appears to be a different problem than the Valve Body thing. This deals with some kind of "clip" It is a fantastic transmission and smooth as can be. Hopefully they will have all the bugs out of it now and the down shifting thunk will be history.
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