Audi a6 avant

[Rob1967]

I have audi a6 avant 2.7 tdi.do these have timing belt or chain and how often do they need changing.
Thanks

 

[Simon968]

They have a chain driving the cams, but there is a belt driving the fuel pump.

 

[RAV tdi]

V6 tdi motors have chain for cams but too they have two belts, one poly v belt and one toothed belt.
Poly V belt is for move aux. elements.
Toothed belt is for diesel pump. The chain driving doesn't need changing and belts need changing after 90,000 miles.

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