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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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Old 12-14-2014, 07:30 AM
wildcat1212 wildcat1212 is offline
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Location: FL
Join Date: Sep 2009
Posts: 16
Mein Auto: 2006 750Li
2006 BMW trnasmission fault -intermittently


i have 2006 BMW 750li with 72K miles.

lately I have been having problem with repeated appearance of trnasmission fault warning, it says
" transmission fault.
possible reduced acceleration.
have checked by nearest BMW Ctr."

i have aver noticed that it happens near toll booths in other words when you are at 70-80 MpH apprroach tha tool both, slow doen to 25 MpH, then push the accelerator and boom sign will show up.

if I stop turn off the car for few seconds and start again sign goes away and car runs fine.

i have been to dealer, they scan the car no fault code stored so they can't find any issue with tranny.

this issue is fairly reproducible, last night it happened 3 times. I still have extended warranty so if we find the problem it will get fixed.

Dealer has already changed transmission pane, fluid, mechatronic sleeve.

any suggestions?
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Old 12-14-2014, 07:45 AM
chamilun chamilun is offline
Officially Welcomed to the 'Fest
Location: TN
Join Date: Jul 2009
Posts: 271
Mein Auto: 2008 535 ix
Id have them check tranny temp sensor
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Old 12-14-2014, 09:30 PM
CLEVER750Li CLEVER750Li is offline
Registered User
Join Date: Dec 2014
Posts: 41
Mein Auto:
I have that problem with my 2006 750Li I had a new transmission put in and I was told to take it to the nearest BMW center to have them program the computer on the car, because of the new transmission.
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