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-   -   Car is having a hard time to move when cold (http://www.bimmerfest.com/forums/showthread.php?t=658215)

KenN 11-14-2012 03:11 PM

Car is having a hard time to move when cold
 
Since the weather gets cold, usually under 45 degree. Every morning, my 2001 E46 is having a hard time to move fordward/reverse eventhough I try step on the gas, and the engine is revving. This would only last for 5 mins and everything becomes normal. No faulty code or light. The car has 112k on it. Is anyone here having this issue? How do you fix it?

Siskin 11-14-2012 04:05 PM

So, to clarify, this is an automatic? When you apply throttle, the engine responds but the vehicle moves at a slower pace than normal?

Have you checked your ATF level?

KenN 11-14-2012 04:09 PM

This is auto transmission. I have not checked ATF level. Thx for reply!

Siskin 11-14-2012 04:15 PM

I would start by checking the fluid. ATF is not a dual weight oil and will not circulate as well at colder temperatures. If the fluid level is good, it may still need a change. Any contamination can influence the viscosity.

BMW says the fluid is good for the life of the vehicle, but c'mon, man... that's why these trannies grenade themselves at 200k.

halltristan 11-14-2012 04:17 PM

Quote:

Originally Posted by KenN (Post 7195248)
Since the weather gets cold, usually under 45 degree. Every morning, my 2001 E46 is having a hard time to move fordward/reverse eventhough I try step on the gas, and the engine is revving. This would only last for 5 mins and everything becomes normal. No faulty code or light. The car has 112k on it. Is anyone here having this issue? How do you fix it?

You have a vacuum hose leak. It isn't the transmission. The fact that the car doesn't have any trouble after it has heated up is the key. I had a Suzuki that did the exact same thing. You probably have a vacuum hose with some holes - as the car heats up the hose expands and self seals. Good news is, this shouldn't be an expensive fix. The bad news is you or a mechanic may have a hard time finding the leak.


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