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      05-15-2010, 01:23 PM   #1
96GS#007
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2007 Auto Transmission Question

Hello,

I have a 2007 335i sedan, automatic transmission, paddle shifters, sport package, premium package, I-Drive, etc.

When starting from a complete stop, the transmission seems like it's slipping...ie the rpms increase to ~1500rpm as I pull away but the acceleration from the car seems to be less/inconsistent with what would reasonably be expected. It's feels like someone who is slow to let out the clutch on a manual transmission car...the revs go up but the car doesn't accelerate consistent with the increase in rpm. The up/down shifting is firm/quick the rest of the time.

Is this normal (I just got the car)? It has 20k miles on it and has the balance of the factory warranty. I used the search feature but didn't see this addressed. My appologies if I missed it.

Other than the above "quirk", I really like this car! It's my DD and with a 100mile daily commute, it makes the time much more enjoyable.

Thank you,

Jim
2007 335i
Sport, Winter, & Premium Packages, I-Drive
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      05-15-2010, 01:27 PM   #2
mkiv
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i have the samething and my SA told me its the hill assist. i dont know its ture or not tho.
i have heard newest software will fix this by disable the feature.
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      05-15-2010, 02:02 PM   #3
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From your description, it sounds like an issue that I recently experienced. The dealer reset the transmission adaptation and everything is fine.
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      05-15-2010, 09:14 PM   #4
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Thank You for the responses. Looks like I'll make an appointment with the dealer and have them update the software.

Jim
2007 335i
Sport, Winter, & Premium Packages, I-Drive
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      05-15-2010, 10:49 PM   #5
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I would try resetting the adaptation before updating the to the latest software...because your car is an '07 like mine, it's PROGMAN is likely pre-29.2. I consider that to be a "good thing."

It looks like you only have a couple of posts...if you haven't, I suggest skimming through the 29.2 thread...take a look before updating your software in haste:

http://www.e90post.com/forums/showthread.php?t=147781
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      05-15-2010, 11:59 PM   #6
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Read how to reset your transmission.

I barely press the pedal down from a light, maybe 5-10 percent and it goes just fine. Then again I flog my car regularly. My transmission knows I mean business.
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      05-16-2010, 05:47 PM   #7
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Quote:
Originally Posted by 808AWD325xi View Post
I would try resetting the adaptation before updating the to the latest software...because your car is an '07 like mine, it's PROGMAN is likely pre-29.2. I consider that to be a "good thing."

It looks like you only have a couple of posts...if you haven't, I suggest skimming through the 29.2 thread...take a look before updating your software in haste:

http://www.e90post.com/forums/showthread.php?t=147781
I just got finished resetting the adaptation. Much improved! Heck of a read on the 29.2 s/w, thank you for the link. I have a Lot to learn regarding this car.

I've been an instructor for the BMW CCA, PCA, Corvette, etc for years but this is the first BMW I've owned. I always enjoyed them from the right seat as an instructor on the race track. The car is a blast as a DD.

My track day toy is a little north of 500hp, has suspension mods, etc and I know every inch of the car. For those that are curious ...



I do my own work...


The 335i...



Definitely looking forward to learning about the BMW!

Jim
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      05-16-2010, 06:04 PM   #8
808AWD325xi
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Sweet track car.

Welcome to e90post!
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