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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 04-24-2012, 06:22 PM
Zema Zema is offline
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Location: Norway
 
Join Date: Apr 2010
Posts: 16
Mein Auto: E46 BMW 323iA
Shaking/vibrations under 2000 rpm E46 323i 99'

Hi.

The whole last year I've been experienced some strange shaking/vibrations from the driveline someplace between 1800 to 2000 rpm and only when the car has some resistance. Like in small uphils. The car is equipped with an ZF automatic tranny that operates perfect.
During this year I've checked all parts in the driveline, changed alle parts with signs of wearing, but still the shaking occurs just bellow 2000 rpm.

It sounds and feels like it comes from the final drive unit, but there is a strange thing...it seems like this only occurs when the tranny is in the D-modus, and not in the S-modus.

Even if the tranny seems as good as new normaly, could it still be the problem in this case? Or is it most likely something with the final drive unit (or even something else)?

Anyone experienced something like this? Solutions?
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