[s-cars] How-to: AAN Serpentine Belt Tensioner Rebuild

Paul Heneghan paul.heneghan at bbc.co.uk
Sun Aug 6 19:26:20 EDT 2006

Hello Fred & JR and others.

My S6 Avant developed a serp belt tensioner problem hours before a
holiday in France.  Fortunately, I was able to swap in the one from my
wife's saloon (took about 15 mins), so the holiday went ahead.

Now I'm back, and need to fix the tensioner.  Apparently Fred Munro
wrote up a how-to on replacing the bearing.  Was this the bearing for
the idler wheel (which is fine), or the bearing for the tensioning bit
(which is in a really bad state)?

Any BTDTs or pointers to the pdf gratefully received.


p.s. now I know why the serpentine belt broke last month - the tensioner
was pressing the edge of the idler into the middle of the belt.

Paul Heneghan, 
Lecturer (Computers and Networks)
BBC Training & Development 
*	Work:   	01386 4 20120  
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