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Weird Transmision Feeling

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Old 05-21-2010, 07:09 PM
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hey guys, just wanted to post this up... Seen's i bought the car i been noticing a problem..

usually in early in to driving . An Automatic Lci 528i 2008 39000 miles

1. Full Stop in a traffic light or a stop sign,
2. Let go of the brake pedal to engage the gas
3. and the car rocks very little back like if it's a stick
4. after rocking back very little, u feel the gear ingage
it feel as if when i make a full stop the car goes into neutral and when i let go of the brakes it ingages first gear.
and all this while on regula drive not Sport
took it to the stealer and nothing, the idrive tells them nothing ,, so they can do NOTHING.


Thank u in advance
Old 05-21-2010, 09:01 PM
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have a similar feeling with my '06 550. It seems like the gear doesn't engage right away sometimes. Don't know if this is normal or not but planning to bring it to an indy shop for a second opinion. Planning to get the transmission oil change soon anyway.

If anyone has any similar problem as mine, please chime in. Hoping it's not something serious since factory warranty has expired and no extended warranty.
Old 05-22-2010, 04:56 AM
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thats exactly the feeling as if thelike the gear doesn't engage right away sometimes.
Old 05-22-2010, 07:07 AM
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What you are feeling is "normal" but if it's very noticeable you may want to have your ATF level checked (it may be low for one reason or another). The reason for this feeling is that these ZF automatics actually disengage the torque converter when stopped, to keep the load off the drivetrain and save gas.

From Wikipedia:

The ZF 6HP26 uses a Lepelletier epicyclic/planetary gearset, which can provide more gear ratios with significantly fewer components. This means the ZF 6HP26 is actually lighter than its 5-speed predecessors. It also has the capability to achieve torque converter lock-up on all six forward gears, and disengage it completely when at a standstill, dramatically closing the fuel efficiency gap between automatic and manual transmissions.
Old 05-22-2010, 11:11 AM
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Maybe resetting the tranny might help....

Just turn the key two clicks (do not start the car)
Press the gas pedal all the way down, past the kick down resistance
hold for a good 25 sec
release gas pedal
done

How know it may help..if not it will at least drive smoother afterwards..

GL!
Old 05-22-2010, 02:07 PM
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thanks guys for the info... and the last post how can i do that with a push start
Old 05-22-2010, 02:13 PM
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Originally Posted by stevenbeboo
thanks guys for the info... and the last post how can i do that with a push start
was about to post the same thing? exactly how do you restart the tranny if you have a push start type starter.

Thanks

RCT
Old 05-22-2010, 06:06 PM
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Originally Posted by stevenbeboo
thanks guys for the info... and the last post how can i do that with a push start
found it...hopefully this will help you fix the problem. I'll try it tomorrow.

BOL

https://5series.net/forums/topic/400...age__hl__trick
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