[Vwdiesel] TDI alternator pulley

[travis gottschalk]

Most of the time the alternator pulley is what causes the tensioner to fail. If you have vibration at idle on the serp belt then I would replace that as well. 

I'm still tempted to replace the alternator clutch, but I really should 
> start trying to not fix what's not broken.  It's just that the stuff 
> that works is always easier to fix than all of the stuff that really is 
> broken.