[s-cars] NurSC - What's loud at dawn then silent untiltwilight...

[Taka Mizutani]

I forgot to mention my car was chipped the whole 60k.
Taka
On Jan 16, 2011 1:08 PM, "Wylie Bean" <theringmeister at triad.rr.com> wrote:
> I had 120K on my 99.5 A4 1.8T when I sold it, somewhere in that
neighborhood on our 01 allroad. Both totally stock. Never a problem out of
any of the 3 turbos on either one.
> Wylie Bean
> TheRingmeister at triad.rr.com
> 90 cq
> 91 90q20v
> 92 UrS4
> 08 Q7 3.6
> via BlackBerry®
>
> -----Original Message-----
> From: John Cody Forbes <cody at 5000tq.com>
> Sender: s-car-list-bounces at audifans.com
> Date: Sun, 16 Jan 2011 12:31:52
> To: Vincent<s.sikss at gmail.com>
> Cc: <s-car-list at audifans.com><s-car-list at audifans.com>
> Subject: Re: [s-cars] NurSC - What's loud at dawn then silent until
> twilight...
>
> 100k on K03's is actually very high. I've seen then fail at many less
miles than that numerous times. On the 2.7tt the K03's are too small and run
too hot.
>
> -Cody (mobile)
>
> On Jan 16, 2011, at 12:13 PM, "Vincent" <s.sikss at gmail.com> wrote:
>
>> ... 100Kmiles K03.
>>
>>
>>
>> I’ve been urSless for a while now, but when Audi Gods and Turbo Gods
start a
>> fight, my first move is still to duck under the cover of this list’s
wisdom
>> rather than an allroad forum.
>>
>>
>>
>> I bought the allroad last July with perfectly silent turbos. When the
>> temperature cooled down, I started to hear the soft whine of turbos in
the
>> light of dawn. But only for the first 5 minutes or so of driving: an
aging
>> turbo sound I was used to with the S-Bitch and I didn’t worried much
since
>> the S-Bitch has been whining softly when cold for over 100Kmiles until it
>> died of unrelated sickness. Then, in the past few days, the cold whining
>> turbo went quickly from soft to quite louder but still becoming silent as
>> soon as the water temperature approach 60C/140F (water gauge has barely
>> moved). This afternoon, after being parked inside for the day (about
60F),
>> the turbo went fairly mad the first time I hit 2000rpm, barely on boost,
>> almost covering all noises (traffic, engine, me), so I went limp mode
until
>> the water gage started to move and, sure enough, silent turbo. I even
>> hammered it from 2Krpm to 4Krpm when the engine was properly warmed up,
not
>> a sound from the turbo.
>>
>>
>>
>> Now, from all my readings, it seems that a failing turbo goes from soft
>> whine when cold to soft whine all the time, _then_ to louder and louder,
but
>> I have no BTDT. Besides, the K03 are still teens, at 100Kmiles, too young
to
>> die. So I’m wondering if it’s really that I should plan on going RS4
sooner
>> than expected or could it be some oil/oil feed problem that _will_ force
me
>> to go RS4 sooner than expected if not fixed ASAP, something I would
rather
>> avoid since the RS4 budget is not yet completely, properly, barely,
funded
>> (read: a dime or two so far but I think I may add a quarter this month).
>>
>>
>>
>> For information, the patient is 8 years old, just passed 100Kmiles. It
has
>> been dealer maintained (including oil changes... and wipers!) until I put
>> my pawns on it so I expect, hope (should I, really, knowing dealers?)
that
>> the K03s have only seen Audi-approved synthetic oil of the recommended
>> weight while in PO’s hands. Inspection on purchase revealed only very
small
>> traces of oil at the bottom of intake hoses and ICs. Oil has been changed
to
>> Mobil1 0W30 in the first weeks of ownership then, since early December,
K03
>> are seeing Mobil 1 5W30 (plain old Wal-Mart Mobil 1, no synth, no
European
>> formula, no snake oil), one step up the 0W30 ideal weight but still in
the
>> recommended weight range (0W30, 5W30 or 5W40), trying to tame down a
small
>> valve cover leak until the weather warms up and I can fix it. Since the
>> temperature has rarely dropped below 15F in the morning this winter, I
don’t
>> think the switch 5W30 would cause that noise.
>>
>>
>>
>> So, what kind of offering do you, priests of the Turbo Gods and Audi
Gods,
>> think could put the Gods at peace?
>>
>>
>>
>> Thanks for reading that far.
>>
>>
>>
>>
>>
>> Vincent.
>>
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