Join Date: Oct 2009
Nominated 1 Time in 1 Post
TOTW/F/M Award(s): 0
Thanked 78 Times in 76 Posts
Re: scenic 1.9 dci aux belt tensioner making noise
this almost certainly your alternator pulley.
it has a clutch on it to free wheel when needed and when this siezes, your tensioner will vibrate around a lot. get it replaced , you can get the pulley on its own.