Well basically went to main VW dealers and they charged £90 telling me everything I already knew what was wrong with the car... (broken wing mirror, new wipers needed, top up coolant, airbag light on due to non standard seats etc)...
I told them there was a misfire, and when they looked they couldn't find anything. Driving it home the misfire was still there! They also said they had trouble with my car as it was lowered and couldn't get it onto the ramp, when it has been on about 5 other ramps and never had a problem!
Gonna go back tomorrow and complain really!