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Impossible to change thermostat on 4000S?
Is it impossible to change the thermostat on an Audi 4000S 1987?
If anyone has changed one please advice.
I tried it yesterday, so I could put in a lower thermostat because
the car overheats frequently. I have the Hanes *%*# manual, which
showed it to be behind the waterpump on the 4 cylinders, and simply said
to unscrew it and remove it -- right! I got down there and removed the
hose for better visibility. After contorting my body extensively, I
was able to see one of the bolts, but not access it with a socket and
barely a wrench. The other bolt, I could feel but not see or access
it with any tools! It appears to be a job for a full time mechanic!
Question #2. The car has overheated frequently during my three years
ownership. While I am carefull, there seems to be some reasons which
I have compiled below. I am not a mechanic and am only guessing!
1. tiny cooling system and plastic radiator-- About 1 1/3 gallons of fluid.
2. tiny oil cooling capacity--about 3.2 US quarts-the least of any car I know.
3. twin radiator fan but only one motor- most cars like my 86 Honda Civic have
two motors. My Audi fan/motor/fuse has broken twice, and the pulley for
the tanden fan broke once. The car always runs hot and with a
malfunctional fan it overheats, even at a stop light.
4. Can't change the thermostat to put in a low 160F one.
5. The car works hard and revs high on highway (crying for another gear).
I don't think the car has an overdrive. The fifth gear feels like
4th and is called for by the shift indicator at 40 MPH
(common for 4 th gear).