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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 04-04-2014, 10:45 AM
Todd inMA Todd inMA is offline
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Location: Groton MA
 
Join Date: Aug 2013
Posts: 1
Mein Auto: 328xi
[B]2007 335xi - turbo lag after dealer oil change[/B]

Took my '07 335xi (6 speed manual, 82k miles# in for an oil change at the dealer. Afterward the guy moving the car to the front door slid on some ice into a snow bank and cracked the front bumper and right side fog light. Dealer covered the repairs - had the car for 2 weeks - gave me a loaner (2014 X1).

I picked my car up late last week and immediately noticed a turbo lag when I'm accelerating onto the highway.

Prior to the work, the car would react immediately with prompt and significant acceleration. No noticeable lag - Now it gets up to about 4k RPMs and feels like it's "governed" at that speed. I shift to a higher gear and when I get to 5th or 6th gear, then after 2 to 3 seconds I feel the turbo kick in.

This isn't right!

Could this have anything to do with the driver adaptation of the car and I need to wait for it to re-learn my driving habits? And if so, how long should that take? #It's been a week with no change#.

Thanks,
Todd inMA

Last edited by Todd inMA; 04-04-2014 at 10:47 AM. Reason: Want to bold the text in the title
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Old 04-04-2014, 11:51 AM
jburke4689 jburke4689 is offline
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Location: Ellicott City, MD
 
Join Date: Apr 2008
Posts: 628
Mein Auto: 2007 335i
More than likely it was a software update. BMW put one out to reduce the chance that cars would present with the waste gate rattle. It caused a noticeable turbo lag in my car. I got the update that eliminated it.

See here. http://www.bmwblog.com/2008/11/18/bm...rbo-lag-issue/

See if they updated software at all. It might be your problem. Your car is from that window.
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Old 07-02-2014, 06:51 PM
misterjim misterjim is offline
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Location: Pittsford, NY
 
Join Date: Jan 2009
Posts: 75
Mein Auto: 08 335i 6MT convertible
Quote:
Originally Posted by jburke4689 View Post
More than likely it was a software update. BMW put one out to reduce the chance that cars would present with the waste gate rattle. It caused a noticeable turbo lag in my car. I got the update that eliminated it.

See here. http://www.bmwblog.com/2008/11/18/bm...rbo-lag-issue/

See if they updated software at all. It might be your problem. Your car is from that window.
I read the article. Does this mean that the dealer will re-program the car with the older laggy software or will they use the newer post 2009 sw? Or do you have to specifically ask for it?
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