Update time, after removing the throttle body (god for bid i have to remove it again!) i see nothing wrong, an EXTREMELY thin layer of soot or carbon near the valve, inside all of the contacts (all 2 of them) seem fine, so before i take the leap and buy a new throttle body i want to ask a few questions
1. Is there any diagrams or tables where i can test the pins with a multimeter to see if anything is at fault?
2. is there a chance that the damage is in fact in the wire, but further up the loom?
3. it might be a considence but i noticed on the day that it happened A LOT it was on a day with heavy rain, is there a chance that it might play a factor in this and possibly redirect my attention somewhere else?
4. kind of like question 1, is there any way i can test resistance or something between the cables going into the throttle body and where they terminate (cant find any info on where THAT is) and be able to see if the cable is a problem?
I know i havent been on this forum long and to be frank thats wholey because i havent owned a GTI for that long, and honestly i'd rather question people from a forum with experience then get charged to high heaven from a dealer, just for the problem to persist.
With that said, as always many thanks in advanced to any/all that read this/can help with this
Last second EDIT, i noticed the production date on the throttle body is dated AFTER the car was registered for the first time, meaning its been replaced before but no evidence in the FULL service history (not so full me thinks )