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      12-01-2011, 12:12 AM   #1
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Drives: 07 BMW 335i E90
Join Date: Sep 2011
Location: Anaheim

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How do I check/add ATF to my 07 bmw 335i E90

How do I add ATF to my 07 bmw 335i E90. I have a small leak from my transmission pan and its either from the sensor or the gasket and I dont have the spare money to just drop into it right now. The transmission is just starting to get a little rough when cold and I dont know how to even check, or add ATF to my car. If there is a video or walk through someone has a link I would love to see that if not some instructions would be great too.

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      12-01-2011, 03:28 AM   #2
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Drives: 06 330i
Join Date: Feb 2010
Location: Tampa

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There are some great DIYs in the DIY forum.

Your leak could be from the sealing sleeve, its an area that a connector passes thru and it commonly fails and leaks.

Basically, to check atf level, the car must be up on jackstands or a lift, remove underbody panels, car must be perfectly level, remove the fill plug, make sure the atf in the tranny is in a certain specified range (car must be warmed up), top up until fluid flows out fill hole, close up and put her back together.

honestly i wouldn't risk driving it around with a leak. get it fixed.

new fluid has to be to spec, don't just buy something off the shelf.

these guys sell good stuff...
2006 330i - Jet Black - 19" E46 M3 wheels - HR Sport - 206,000 Miles...

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      12-01-2011, 10:29 AM   #3
Been there, wrecked that.

Drives: '07 E93 335i
Join Date: Jul 2009
Location: SoCal

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This is from ZF:
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File Type: pdf 6HP26-28_ Test and Oil Refill procedure.pdf (196.8 KB, 455 views)
~199K miles. I -still- don't fear my 335i.
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