Just got back from running a mate to Gatwick and the S3 seems to have developed a niggle.
Boosts fine up to about 4000-4500rpm but then seems to hold back and struggle after that. Seems like its straining to pull past 60mph in third and I'm thinking that cant be right.
I have heard that it could be a faulty N75 valve.
Do you think its worth replacing that straight away or do you think I need it checking on Vag Com first. Dont really want to get stung by the stealers for a diagnostic but don't know anyone with Vag Com.
Any help or advice appreciated