My '17 version of this car, with 61,000 had the EPC and the Engine Management Light on, and wouldnt come off even when the codes were erased. The error code was a P334B.

I took it to, albeit 2 non-specialist VAG independent garages, and they all said "new turbo" - a new turbo being quoted at £750+VAT plus upto 8hrs of labour because its a bugger to get off.

Anyway I eventually found this video:

- YouTube

In turns out a bit of grease/WD40 solves it - still cost me 5hrs labour but much better than "new turbo" response.

Just thought I'd post for others facing this supposedly common problem with these 1.0, 1.2 and 1.4 TSI engines in a range of VAG vehicles.