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Old 01-17-2013, 08:31 PM
awdrev awdrev is offline
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Location: Maryland
Join Date: Dec 2012
Posts: 82
Mein Auto: 2004 BMW X3 3.0 Auto Tran
Originally Posted by x3brian View Post
Your friends shop might have a trans power flush machine. I have used them before and they work great (not the x3 though). Essentially what you do is disconnect the trans cooler return line and hook up the machine to take the old fluid out while new fluid gets pumped back in while the engine is idling. They typically run off of the shop air compressor.
Interesting, I'll ask my bud but I was under the impression that these trannys hate the "flushing" procedure. What I was thinking is to do a drain/fill, drive for about 50 miles, and then do the full change, etc.

That should get most of it out.

Alternatively, I was thinking to unplug the cooler line and drain as much as possible out of there too.

But all said and done, I am not sure if I would do either because of the extra time, work, and money. I will just get the fluid and do a drain, filter change, and refill.

I have not hear of other owners that have had problems because of fluid mixing, etc.

New Challenge: Find cheap DEX-VI!!! lol

Last edited by awdrev; 01-17-2013 at 09:11 PM.
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