I have just bought a 54 plate 1.7CDTI with 49K on the clock.
It drives well and I get 54MPG but between 1500 and 2000RPM there is a loud resonance from the engine/exhaust?. This is more noticable in 4th and 5th when accelerating.
My old 1.6 petrol astra I would drive around in 5th ffrom 30mph up, but I seem to have to drive aroung in 3rd at 30mph and 4th at 50mph to keep the RPM above 2K.
Is this normal, if not what could it be?
I took it back to the dealer and they said this is normal.