Please verify @ reoloem.com

I am just assuming this is your transmission -> The A5S-440Z (also known as the 5HP24)


BMW Automatic Transmission – V8 – Slow Reverse – A5S-440Z, 5HP24, 540i, 740i, 840i, X5 | Bavarian Autosport Blog

ZF Updates
http://blog.bavauto.com/wp-content/u...ce-letter1.pdf

EDITS:

I have never owned a BMW with a ZF transmission, most owners recommend Life Guard AT Fluid only and BMW OE filter/gasket kit.

You need to get your vehicle scan/diagnose by GT1 or autologic it will read all BMW specific module - BMW Indy shops or dealership

Good luck!

__________________
Build Date: 06/2004

2004 E53 3.0L 6 Cyl
Engine Code: M54
AT: 5L40-E/GM5 (A5S 390R)
http://s101.photobucket.com/user/lho...in/library/E53

2004 E46 M3 Coupe 3.2L 6 Cyl
Engine Code: S54
MT: S6S 420G - 6 speed
http://s101.photobucket.com/user/lho...in/library/E46
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Build Date: 10/2008
2009 E90N 328xi Sedan 6 Cyl
Engine code: N51
AT: GA6L45R/GM6
http://s101.photobucket.com/user/lho...in/library/E90