My 2009 3.0TDI is starting to feel a little sluggish in the gearbox department (probably due to me pushing 480ft.lb + through the transmission) and I've been thinking of doing some preventative maintenance.

Can anyone tell me which version of the ZF-6hp28 is in these cars, so that I can order the correct solenoids for the valvebody.
The solenoid kit I'm looking at is for version 1068-010-093.
How easy is it to read the version from the box? Can it be done without removing too much or is it a box out exercise?