There's loads of codes on there. Most are for trim designations, so T91 could mean 'rear headrests'; that sorta thing. I've tried decyphering mine a while back, I managed to get the meaning of about half of them - it's a bit of a PITA. The process involves looking through VW's software system, trying to find the specific codes, then writing down what it means.
I'm such an anorak.
Your codes will include rear headrests, the interior colour, ABS brakes, AC, etc etc. Even down to the type of battery/alternator used...
