[Biturbos4] S4 Biturbo newbie

[Grant]

Yep, it does.
Idling can occur with the car moving, basically.

Grant
On Dec 22, 2004, at 9:42 AM, northrup wrote:

> there is quite a debate about turbo cooling... essentially what i do 
> is to
> stay off the boost as i near my destination, thus letting the oil and
> coolant do their job of cooling down the engine and turbo parts.
> Following this, and depending on the situation, I may idle for 30-120
> seconds... or not.
>
> For example, my work place allows for a downhill coast before parking
> which lasts about 30 seconds.... so, IMHO, that 30 counts toward my 
> cool
> down period.
>
> wilson '00s4
>
> On Wed, 22 Dec 2004, Paul Jones wrote:
>
>> Outstanding info! But I must admit I'm a tad confused about the "cool 
>> it
>> down before shutting the engine off" bit. What are you supposed to do?
>>
>>
>>> From: Grant <gfl1 at optonline.net>
>>> To: Paul Jones <elsey12 at hotmail.com>
>>> CC: biturbos4 at www.audifans.com
>>> Subject: Re: [Biturbos4] S4 Biturbo newbie
>>> Date: Tue, 21 Dec 2004 19:24:25 -0500
>>>
>>> Mine's been pretty good.  Very solid car.
>>> The turbos are a costly, fragile part however.  For starters, there 
>>> are
>>> two.  They need to be replaced in pairs, supposedly.  Replacement 
>>> requires
>>> engine removal, so its costly.  On the other hand, Audi has equipped 
>>> it for
>>> longevity. The turbos are water-cooled, and there is an after-run 
>>> pump to
>>> keep H2O circulating after you shut it off.
>>>
>>> There is no maintenance possible per se, btu precautions that apply 
>>> to ANY
>>> turbo car:
>>>
>>> 1. Easy when its cold
>>> 2. Cool it down before shutting the engine off
>>> 3. Use synthetic oil, which resists coking at the higher 
>>> temperatures that
>>> exist at the turbo
>>> 4. Change it frequently, I do it ~5k with Mobil 1
>>>
>>> Problem with a used one is "what did the previous owner, who didn;t 
>>> plan to
>>> keep it long anyway, do?".  frequently, not much.  Audi does NOT pay 
>>> for
>>> synthetic in 6-cyl turbos, so it got regular oil for the first 50k, 
>>> unless
>>> the owner carried a bag of mobil 1 to the dealer twice a year (like 
>>> I did).
>>>  Did he cool it down?  Warm it up?
>>> You'll just have to feel out the owner and hope for the best.  Do 
>>> listen
>>> for excessive whining under load ( a bad sign).
>>>
>>> Other than that, the timing belt service is a bit costly, and should 
>>> be
>>> done at (let the debates begin) ~75k.  Figure $900-1500, depending 
>>> on who
>>> does it, with the water pump, thermostat, idler and tensioner all at 
>>> the
>>> same time.
>>>
>>> Tie rods fail early, as do some control arms.  Life goes on.
>>>
>>> Despite all this, the car has been very solid.  Heavy duty 
>>> throughout.
>>> 20mpg "normal", with 25+ on the highway.
>>>
>>> Oh, yea, tune ups are a bear for the DIY, but do-able. Also, careful 
>>> of the
>>> 17" wheels with 45-series tires.  They bend.  You can get 16' on for 
>>> snows,
>>> but only a select few 16" will clear the big brakes.
>>>
>>> Mine now has 73k, no rattles, burns almost no oil, no major repairs 
>>> save
>>> the tie-rods and a couple control arms.  And once done, it drove 
>>> *like
>>> new*.
>>>
>>> Grant
>>>
>>> On Dec 21, 2004, at 10:21 AM, Paul Jones wrote:
>>>
>>>> Hi all. I have recently sold my '93 V8 and I am considering buying 
>>>> a '00
>>>> S4. Having had no previous experience with turbo Audi's I am in 
>>>> need of
>>>> some basic info. on the cars. What are the major problem spots? 
>>>> What are
>>>> the major buyers guidelines? Plus, is there any special 
>>>> maintainence that
>>>> must be performed on the turbos themselves?
>>>>
>>>>
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>>>> http://www.audifans.com/mailman/listinfo/biturbos4
>>>>
>>>
>>
>>
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