urgent help from tdi experts

[vwnige]

hello everyone,
i have just bought a vento tdi 90bhp,the car is a minter and only done 37000 miles,the guy who had it was an old boy who only drove 4500 miles per year.
there is a catch though,the diesel engine is very very noisy,so noisy that when i got home last night my ears were hurting.
the car sounds like there is no sound proofing,there is lots of vibration and resonance at low revs,the guy i bought it off say he had the belts changes by a toyota mechanic at the dealership where he works so i wondering if maybe the timing is slightly out or maybe if how the car has been driven all these years is to blame,can anybody help.

[Lex Luthor]

You've not told us much about the car, but as I recall, on the older models, the timing is done initially with locking pins, then refined with VAGCOM or the dealer system.
If the belt was done at a non-specialist then that was probably not done.