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Old 05-18-2010, 06:03 PM
stbsf22 stbsf22 is offline
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Location: San Francisco, CA
 
Join Date: May 2010
Posts: 2
Mein Auto: 2005 545i Sport
'05 545 transmission surge

My trans issue is a subtle power loss at about 37 mph. Sort of a stutter. Dealer hasn't been able to replicate the issue. Each time after a service, the problem is gone, then reappears about two weeks later. Dealer suggested I shift the trans to sport mode. This takes care of the surge but means I burn more fuel and have to shift back and forth. Unacceptable. Dealer told me the MECHATRONICS fix referenced in these pages is not for the 545, but for the 6 series. I'm taking my car back to the dealer as I think I can demonstrate the problem during a road test BEFORE a service.
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