alternator 1.9 pulley ??

[alleywalley15]

when starting from cold their a large noise from this area is better to change the alternator and pulley together or just the pulley ,i been told that their is a bearing in the centre of the pulley that goes wrong, ps also on full lock

[martin1810]

The alternator pulley or the tensioner could be making noise. Take the belt off and give them a spin. The alternator pulley should drive the alternator in one direction and spin freely in reverse. The tensioner should just spin freely, no noise.

[paul b]

As Martin says. And no, don't just change the whole alternator, change the pulley or tensioner as required only. The pulley is a common problem on TDIs, have changed it myself on my A6 and T5.