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  #1  
Old 12-12-2012, 11:00 PM
normsbimmer normsbimmer is offline
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Performance drop after dealer software update.

Hello,


I recently went to the dealer to get the wind noise fixed on my 2012 328i sedan passenger window. When I spoke to my service adviser, he told me that I also needed a software update. Well its been a week and I've noticed that my car doesn't pull as fast as it used to. anyone else have this issue? Thanks in advance!
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  #2  
Old 12-13-2012, 06:40 AM
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Orient330iNYC Orient330iNYC is offline
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when a car is updated, the adaptations for the engine and transmission are reset. the car needs to relearn your driving style.
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Old 12-14-2012, 11:49 PM
AntBabeee AntBabeee is offline
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I read things about this with previous models. people said it happened to them when the power performance kit was getting released.
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Old 12-15-2012, 08:54 AM
Redrokit8 Redrokit8 is offline
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I would always ask if they were going to access the PCM. IN the past I learned a hard lesson by not asking that question and my custom tune flew out the window. Of course I was told that there were a lot of erroneous codes and thank God I came in when I did !
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Old 12-15-2012, 03:15 PM
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Quote:
Originally Posted by Orient330iNYC View Post
when a car is updated, the adaptations for the engine and transmission are reset. the car needs to relearn your driving style.
About this, is the memory for the engine and tranny kept for each driver's key? My wife's driving style is far different than my own.
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Old 12-26-2012, 04:04 PM
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UPDATE:

So its been a few weeks since they did a software upgrade. My car is still not the same when I got it. Its still slower. How long do you have to wait before it adapts? Or is BMW detuning cars prior to the performance package release?
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Old 12-26-2012, 04:15 PM
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Maybe they screwed up something else?
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