So I bought an a3 2.0t 2 months ago and within a month I could feel that the turbo wasn't boosting properly it went back in the garage I purchased from and they replaced the n75 and it was working fine.
BUT last week it went back to feeling sluggish again and I sent it back to the garage and they said their are no fault codes on VAGCOM that could cause sluggishness only a issue with the instrument panel which we are currently awaiting the parts on (all under warranty thankfully)
I cannot hear the turbo recirculating as usual which suggests no boost being held
so my question is
Are their any known problems regarding turbo/sluggishness and lack of boost that wouldn't necessarily show up on the VAGCOM system?
the garage is trying to tell me it's fine which is annoying because it most defiantly is not.