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Fw: S-car Fuel Tank Corrosion Heads-up




----- Original Message -----
From: Fred Munro <munrof@isys.ca>
To: AUDI S Cars Discussion List <audi-s-cars@lists.boldfish.com>
Sent: Thursday, October 14, 1999 10:44 PM
Subject: Fuel Tank Corrosion Heads-up


>     I've just been going over my new (to me :o) '94 S4. One thing you've
got
> to give Audi - they are consistent! The S4 has the same problem as my
200q -
> the aluminium composite heat shield over the rear muffler touches the seam
> on the fuel tank. In the presence of sand, water, & road salt, this sets
up
> a nice electrolysis cell which accelerates corrosion of the tank seam and
> the heat shield.
>     On my S4, there was a pile of wet sand trapped between the tank and
the
> heat shield. The heat shield has a large hole corroded in it and the tank
> seam was rusty. The seam is now painted and the shield pulled away from
the
> tank. It might be worth a look for listers in northern climes.
>     I also note Audi has retained the seized rear caliper guide pin
feature
> :o)
>
> Fred Munro
> '91 200q  281k km
> '94 S4  90k km
>