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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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  #1  
Old 10-31-2015, 09:39 AM
QMAX1234 QMAX1234 is offline
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Location: Chicago
 
Join Date: May 2010
Posts: 416
Mein Auto: 1997 BMW 528I
Indy Repair shop gives codes as 4F81 & 51AD

Hi everyone,

In getting my transmission looked at because of random transmission fault codes, the indy dealer showed:

4F81 EGS: Ratio Monitoring, Clutch A

And,

51AD Transmission Control: No message from Dynamic Stability Control

Can someone give insight on this, I was told initially it was a trans issue later they backed up and said no it's a clutch issue, please advise
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  #2  
Old 10-31-2015, 10:33 AM
Andra V12 Andra V12 is offline
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Location: UK
 
Join Date: Jan 2014
Posts: 76
Mein Auto: 2005 760i
I had the same codes and some other random codes when the transmission bridge adapter seal leaked so I replaced all the seals associated with the valve block and had the transmission hot flushed and everything is now good .

Last edited by Andra V12; 10-31-2015 at 10:34 AM.
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  #3  
Old 10-31-2015, 10:35 AM
QMAX1234 QMAX1234 is offline
Officially Welcomed to the 'Fest
Location: Chicago
 
Join Date: May 2010
Posts: 416
Mein Auto: 1997 BMW 528I
Quote:
Originally Posted by Andra V12 View Post
I had the same codes and some other random codes when the transmission bridge adapter seal leaked so I replaced all the seals associated with the valve block and had the transmission hot flushed and everything is now good .
Hi Andra is there a DIY for the valve block? thanks.
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  #4  
Old 10-31-2015, 10:39 AM
Andra V12 Andra V12 is offline
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Location: UK
 
Join Date: Jan 2014
Posts: 76
Mein Auto: 2005 760i
Lt max is the man to help you . If you ask he can give you more info .
See my thread when I had the same fault .http://www.bimmerfest.com/forums/sho...719&highlight=.

Maybe consider having the work done by a transmission specialist .
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