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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Auto Tranny Issue



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      12-24-2011, 05:58 PM   #1
DJ Apex
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Auto Tranny Issue

Ok guys while i was out doing some late xmas shopping. Im on this two lane road with lights ever half mile or so.

So you can see the light from another light your stopped at well as i come closer to the light it turns red well i put my car in to Neutral and coast up to the light and to my luck it turns green befor i hit my brakes.

Well as i put it back in to Drive i notice everytime it kinda slips and catches into gear and when i let off the throttle it drops and idles like i put it back into Neutral then when i give it throttle it pickes up catches in to gear and goes.

This happened for a while till i came to a stop light made a compleate stop and put my car in to DS then back to Neutral and it shifts normal again.
This is also not the 1st time ive noticed this it happened once befor over a year ago.

So anyone have a clue as to what might have caused that?

I also noticed when im doing about 60mph and i hit the throttle 100% when it down shifts it slams the gear hard enought for the car to jerk. And me to be like shit did i brake something. Ive over looked tranny mounts rear end mounts and all. And nothing they are all still good.

So i wonder has this happened to anyone else as well?
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      12-25-2011, 09:51 AM   #2
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66 views and no responce
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      12-25-2011, 09:54 AM   #3
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Bro it might be time for a new car with all of these recent problems lol
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      12-25-2011, 10:22 AM   #4
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Bro it might be time for a new car with all of these recent problems lol
lol i wish but im stuck with her! unless houston has a flood anytime soon!
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      12-25-2011, 10:45 AM   #5
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You shouldn't drop you car into nuetral to and then try to reengage the transmission while moving....that's your problem.
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      12-25-2011, 10:52 AM   #6
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You shouldn't drop you car into nuetral to and then try to reengage the transmission while moving....that's your problem.
lol i guess
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      12-25-2011, 10:57 AM   #7
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transmission gear ratio (D)
Sounds like its on its way out.
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      12-25-2011, 11:00 AM   #8
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This is what you do
Warm up the car by driving.
Come to a stop in drive and wait. If you feel vibrations and sort of a kicking thing (light will come up) it sounds like your gear ratios.
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      12-26-2011, 09:38 AM   #9
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Quote:
Originally Posted by Beemw335 View Post
This is what you do
Warm up the car by driving.
Come to a stop in drive and wait. If you feel vibrations and sort of a kicking thing (light will come up) it sounds like your gear ratios.
A gear ratio is not a part. A gear ratio is a mathematical comparison between the input gear and the output gear.

"you hear the bell ringing...."
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      12-26-2011, 12:41 PM   #10
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Its called transmission gear ratio D thats the name of the code that is most probably coming. Up on hia car

And its most probably the transmission megatronic that failed.
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