Personally, i'd check a dealer price first and if poss a TPS at a dealer as its going to be possibly cheaper for the same item.But if you think something is up i'd check that first, as if there is nothing wrong then its money being spent for nothing
TPS = Trade Parts Specialistshttp://www.thetradepartsspecialists.co.uk/ Matt
im in twickenham area mate with vagcom , i have my daughters this weekend but you are more than wellcome to drive over and i will scan your car for you and if time might log your boost as well.Rob.