Audi
Poor MPG? Diagnostic Consultation and Engine Carbon Clean – Audi Q7 3.0 TDI (2008 – 169,720 miles)
๐ ‘Adrian came and carried a diagnostic and a clean on our Audi Q7, with 170K on the clock. He also advise a thermostat swap which we had done. I took the Q7 for a good run to work a couple of days after the clean and changing the thermostat.