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-   -   rough shifts when transmisison is cold (http://www.bimmerfest.com/forums/showthread.php?t=406437)

codog2 10-20-2009 09:43 AM

rough shifts when transmisison is cold
 
Now that the weather is a colder in the morning I've noticed that for the first 1/2 mile or so when I first drive my X3 the transmission shifts a little rougher (especially downshifts).

Nothing major, but noticeable. Just wondering if this is normal? I remember in the owners manual of my 01 accord, honda wrote that it was typical for the transmission to shift a little rougher until fully warmed up (which it did)

AzNMpower32 10-20-2009 09:48 AM

Yes, it's normal. I'm sure your body wouldn't be happy either if you were asked to sprint a few kilometres right off the bat in 0° weather.

enamoured 10-20-2009 09:58 AM

Yep, it happens. I noticed it on my first winter with car and now "baby" it till the temp gauge is at least one notch above the blue mark. Idling the car does not help as it does nothing to warm up the tranny. I normally start the car, wait ten seconds and drive strictly under 2k rpm/under 50 kmph till I reach highway which is ~2kms.

Evlengr 10-20-2009 12:54 PM

Yup, normal in every German designed MT I have owned.

Gerryz 11-03-2009 01:31 PM

Itīs the same behavior of "cold" shifting in Germany ;) - no difference to my Mercedes.

UncleJ 11-04-2009 07:34 AM

Same problem with cold shifts in balmy CA. Just needs a bit of time to get the juices flowing right. Same as any other transmission, german, japanese, or domestic I have ever owned. Even the M/T was a little hard to shift on frosty mornings.

AzNMpower32 11-04-2009 11:23 AM

My old Lexus with the 4-speed automatic wouldn't upshift out of 2nd until the engine was slightly warmed up or you exceeded 3500rpm. Very annoying when it means you're limited to about 35mph.


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