1.9 Liter TDI
Car: 2006 Beetle TDI, 105000 miles, auto transmission.
When we bought the car, we got 36-38 MPG around town (normal driving). For the last three tanks, we got 30 MPG. While we had teh timing belt replaced at 100,000 miles, the MPG was the same after that.
What to do and check?
Thanks.