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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 01-09-2011, 04:23 PM
CT BMW Boy CT BMW Boy is offline
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Rough Shifting Transmission Problem

I just bought a 2003 745Li, my first BMW. Everything about the car seems to be in mint condition except the transmission. I know these cars have transmission problems, but I bought the car at really good price... Ive searched the posts here and not seen a problem exactly like mine so I figured Id ask. When the car is in normal DSC mode there frequently is a rough shift, sometimes felt as a strong bump, when the transmission shifts after having gone through a brake, then coast, then accelerate sequence, such as in slow traffic. It seems to happen more between 1st and 2nd, but has happened in higher gears. In addition, at times the transmission seems to shift less smoothly than it could. Also, when slowing down, the transmission seems to downshift sooner than is should, making the car want to lurch forward. When I turn on the DTC the issue seems reduced to the point of being barely noticeable. The car also shifts more smoothly in manual mode too. All fluid levels seem correct. To me, it seems more like a problem with either the DSC program and/or the sensors than an actual mechanical problem with the transmission (many times the transmission shifts through the gears smooth as silk). Has anyone encountered this type of a problem or heard about a successful resolution to this type of problem? Thanks in advance for your replies.
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  #2  
Old 01-09-2011, 04:36 PM
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7Figurez 7Figurez is offline
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Welcome to bmwfest buddy.


Use the search feature again. This problem has been discussed many times over. look for Urban Trans Programming there are a number of threads.
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Old 01-09-2011, 05:34 PM
CT BMW Boy CT BMW Boy is offline
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Thank you for the gentle redirection.
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Old 01-09-2011, 05:38 PM
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7Figurez 7Figurez is offline
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There is also a thread that has the Service Bulletin about this issue on it. I think you need to search for Transmission and SIB
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Old 01-09-2011, 05:51 PM
CT BMW Boy CT BMW Boy is offline
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Thanks again. Very helpful. Lot's to learn...
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