Re: 4-way temperature switch

[rgb@usa1.com]

>quattro-digest        Thursday, April 10 1997        Volume 04 : Number 594
 Hello,
        Can anyone tell me where a 4-way temperature switch is located in a
1990 Audi 90?  I've heard that it's located near the front of the engine bay
just behind the grill. Does anyone know how it functions and what it's role
is in the operation of the vehicle? Also can anyone direct me to a source of
info esp. diagrams of this particular model as I would like to work on it
myself 
but am hoping to avoid the cost of a shop manual. I bow to you're automotive
greatness and prowess. Thank you, Rich  rgb@usa1.com