Diagnostic Consultation and Engine Carbon Clean on an Audi A4 2.0 TDI (2007 – 73,396 miles)
โ ๏ธ Vehicle not as quiet, smooth, responsive or economical as it used to be? ๐ Here we have an Audi A4 2.0 TDI (2007 – 73,396 miles). โน๏ธ Having recently passed its MOT without any advisories, but getting thirsty on fuel and with a slight judder during the engine warm