Thanks for input on S4 Avant

[Ti Kan]

TM writes:
> I stand corrected on the afterrun system. I've gotten our A4tqw hot enough
> that I could see the turbo housing glow bright red at night- I'm not
> shutting
> the car down with that heat still there, had to pop the hood and let the car
> idle for nearly 5 minutes to cool the turbo down. At least I'm running
> Mobil 1 to lessen the chance of coking in the oil lines.
> 
> Does the 2.7T have an auxiliary water pump as part of the afterrun system,
> or is it just the electric fan that actuates? AFAIK, the 1.8T has nothing
> of the sort. If it does, I'd be interested in knowing where it's located,
> as I do not have the Bentley for the A4/S4.

Yup, the 1.8T doesn't have an afterrun system, but the 2.7T biturbo does,
and so does the non-turbo 2.8 V6 30V.  These employ a secondary electric
coolant pump with a temperature sensor.  The location and plumbing of the
pump differs between the two engines, but they are there.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
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