[BiturboS4] s4 engine noise

California Fields cfields72 at hotmail.com
Thu Oct 16 13:47:00 EDT 2003


Are you able to get Audi to cover the turbo replacement?


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<DIV>Carter Fields, San Francisco</DIV>
<DIV>2001.5, GIAC-X, Miltek 3" cat-back, Strat. shifter, Strat. DVs,
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>From: Michael Kuriger <michael at isuzu-mods.com>
>To: Robin Gibson <robingibson at cowanlinn.co.uk>
>CC: BiturboS4 at audifans.com
>Subject: Re: [BiturboS4] s4 engine noise
>Date: Thu, 16 Oct 2003 09:03:59 -0700
>
>On my 2001 S4, the turbos started whining almost immediately after
>installing the X chip at 8000 miles.  the turbos failed last week at
>20,000 miles and there was no warning.  I just hit the gas and all of a
>sudden i was shooting tons of smoke out the back end.  :-(
>
>Mike
>
>Robin Gibson wrote:
>
>>This is a multi-part message in MIME format.
>>--
>>[ Picked text/plain from multipart/alternative ]
>>Hi
>>
>>I run a 1999 S4 manual with ABT chip (310bhp) which was fitted 2 years
>>ago.  Over the last 6 months I have noticed more induction-type noise from
>>the turbos; rather than the usual crisp high pitched whistle from 1500rpm,
>>it sounds like a muted moaning sound between 1500-2000rpm, almost like one
>>of the turbos is slow to speed up and slow down.  It is most noticeable on
>>light throttle or when decelerating.  No noises or problems when driven
>>hard.  Feels like some loss of response below 3000rpm, but difficult to
>>tell if much loss at higher revs.  Sound familiar to anyone?
>>
>>Robin
>>
>>e-mail: robingibson at cowanlinn.co.uk
>>
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>>
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>>
>
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