2001 325xi transmission fluid change !!! - Bimmerfest - BMW Forums

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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 09-21-2008, 08:49 PM
zb325xi zb325xi is offline
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Location: Hilliard, OH
Join Date: Sep 2008
Posts: 6
Mein Auto: 2001 325xi
2001 325xi transmission fluid change !!!

As many of you know auto transmission on E46 325xi has nothing to do with BMW. It is made by GM and filled with synthetic blend fluid. I have a transmission shop next to mine so I asked the guy what should I do and he said: "flush the transmission and fill it with AMSOil transmission fluid". He also recommended changing differential fluids (also AMS) and transfer box fluid. Transfer box fluid is nothing more than GM transmission fluid dyed green insted of red.

So we changed the filter,flushed the transmission first with Dexron III fluid and than with AMS OIL synthetic fluid, replaced diff. fluids with AMS OIL severe gear fluid and transfer box with AMS trans. fluid.

It's like having a new transmission, it shifts so smooth and the car seems to be rolling a lot easier.

So don't listen to BMW and change your transmission fluid, before it blows up !!!

Last edited by zb325xi; 09-21-2008 at 09:20 PM.
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