Which Gearbox Do I Have 2011 xDrive 23d?

[markaz]

After much confusion and research I am no wiser!

Please can anyone confirm which model of ZF-6HP gearbox is fitted to the above?

realoem.com lists it as a ZF-6HP-19X but this has a 400Nm maximum torque limit which is the output of the engine.

After reading some posts on Facebook is transpires it my be fitted with a ZF-6HP-21X which has a 450Nm max torque limit which would seem more sensible.

I'm looking into a remap and don't want to take it over the max limit of the gearbox.

Thanks

Mark.

[markaz]

ZF have confirmed it's the 21X