Well hello hello Eventually got a RT VCDS cable (from Nigel) so I've been messing about with some changes already. I'm not sure how to (or if I can) post attachments so here's a link to an .xls (Audi A3_VCDS Menus.xls 7.31MB) that I made earlier. Basically its just to keep track of my settings but its screen grabs of all the modules on my car and all of their adaption/coding/codingII sections. Might be helpful to someone else if trying to find that specific byte/bit. (MODS if its not OK to post a link please delete I won't be offended ) http://dl.dropbox.com/u/17485710/Audi A3_VCDS Menus.xls So I've had a few changes made in the past which you'll probably notice from the excel file attached. There's a few I'd be interested in doing but not sure exactly how or if they're possible. First thing is that I have heated seats in front/rear installed from factory but in 09-Cent. Elect Coding Byte 2 - Bit 7 (Seat Heating Installed) This is not ticked?? Now my heated seats work perfectly but just wondering why its not ticked? Next is TPMS I know there are 2 types of TPMS, one with the sensors at each wheel and one that is ABS based. I know that it can be controlled from the DIS or from a button...like my Octy vRS had. I also know on my Yeti that even without the button it can be enabled without the button/DIS and reset from VCDS. It takes approx 1 hr of driving to set its new values......details can be found on briskoda. The disadvantage of that is the fact you need VCDS to reset it every time you get a flat/puncture but I'd not be worried about that. So is it possible to enable TPMS on an 05 plate A3 8P2 Sportback? If I -16384 from coding in my ABS module, that should change to "with TPMS" Then in CAN Gateway in Coding if I enable Byte 01 bit 7 (65-Tyre Pressure Monitoring) that would show up TPMS module, but that doesn't sound right, that sounds like the other system that needs a module for the sensors on the wheels? I can't see anything in my Instruments module but I didn't search each channel in adaption yet. TPMS can then be reset from Adaptation menu on ABS module. I then drive until TPMS light deactivates, like on Yeti?