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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > 6 speed transmission weird behavior



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      04-09-2012, 05:34 PM   #1
autoque
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Exclamation 6 speed transmission weird behavior

Most noticeable when I'm doing the parking maneuver, sometimes when I shift between drive reverse or park, the car suddenly gains momentum to go forward as if something has bumped into the vehicle and is pushing it from behind. It's sort of like shifting into gear when the engine's rpm is higher than the idle rpm. And it's also like shifting into park on an incline without the sidebrake. Even on a perfectly flat surface, after shifting into Park the car somehow still has the momentum to go forward and after I let go of the brakes, I can feel the parking pawl resisting the car from going forward as the car's nose dips moderately. If put in Neutral and let go of the brakes, the car rolls forward upto 3 feet. How I know this is about to happen is when I shift into Drive, I feel more than usual load from the brake pedal and it's exactly when I know the transmission is misbehaving and shifting into Park or Neutral will result in what's described above. It doesn't happen all the time, but when it does it's pretty annoying.
All of this started after the transmission replacement. Any idea?
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      04-09-2012, 07:06 PM   #2
TheTal0n
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Do you come to a complete stop before putting it into park?
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      04-09-2012, 09:45 PM   #3
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Hold the brake a little longer after putting it in park

Edit: just read what you wrote and doesn't apply to your case

This is no professional diagnosis but if it started happening after transmission work then it is probably that...
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      04-10-2012, 03:41 PM   #4
autoque
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Quote:
Originally Posted by TheTal0n View Post
Do you come to a complete stop before putting it into park?
Yes, I do.
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      04-10-2012, 05:13 PM   #5
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Wear skinnier shoes.
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      04-10-2012, 05:42 PM   #6
autoque
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^I'm not really getting the joke.
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      04-10-2012, 05:59 PM   #7
MCoupeInsanity
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Quote:
Originally Posted by autoque View Post
^I'm not really getting the joke.
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      04-11-2012, 12:55 AM   #8
TheTal0n
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Maybe something go be a little hay wire with your Start off assitance?
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      04-11-2012, 01:57 AM   #9
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i dont think its anything because thats the number one things ive noticed about my car i tend to have a habit of throwing my car from drive to neutral while waiting at lights sometimes even with a flat surface the car tends to roll forward a little after throwing it in neutral and sometimes i gotta brake to stop it but then it wont roll after completley stopping.
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