Mystery coolant leak continues

Eyvind Spangen eyvind.spangen at
Mon Sep 2 17:26:18 EDT 2002

On Mon, 2 Sep 2002 02:37:06 -0500 (CDT), you wrote:

>reservoir tank is full and no leaks appear anywhere. Also at the same
>time the AC is now only blowing hot air where it was very cool before.
>And now the boost is only 1.3 where it was 1.7 before.

That looks exactly like a bad multifunction sensor (the big one in the
water manifold under the intake manifold), it sends a false overheat
warning that causes the AC compressor to disengage and the ECU to
limit boost..

E. Spangen
'89 Audi 80 2.0E quattro
('90 Audi 200TQ20v - garasjedronning)

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