What transmission do I have? 3.0D

[SMOKEY53]

Hi guys

Just trying to establish what transmission is in my car

It's a 2005 3.0D

Real OEM based on my VIN says I should have a GA6HP26Z - RealOEM.com * Diagram Selection

I have been under the car and the transmission is stamped with (GA)6HP26X (Can provide pic)

I can't find any info on a GA6HP26X so I'm just wondering what the 'X' is all about.

I can tell that this transmission has come off at some stage as there are score mark on the bolts - so want to make sure that the right transmission is living there, not some lesser replacement.

Reason being, I'm trying to establish the max torque rating of the transmission as I plan to chip it.

This extract from the manual says a GA6HP26Z is designed to take 600nm - which is bang on what the chip says it will deliver.

BMW Workshop Manuals > X Series E53 X5 4.8is (N62-S) OFFRD > 6 SI Techniques > 24 Automatic Transmission (AUT) > 2 SBT 6-speed Automatic Transmission E53, E60, E61, E63, E64, E65, E66, E70, E81, E83, > Page 3512