I have a "Hot" problem. I have a 2004 A6 4.2L. Last ThursdayI was driving and running my mouth on the "Cellular Death-Trap w/hands-free", when all of a sudden I see the "Flashing" thermo warning in the dash console, and I didn't hear the audible, because of my "Fly-trap" und die radio! To make a long nightmare, painless[:@].

Anyone with input, as towhat may have caused this "Steer-Shiza", please do share. I lost a hose and the expansion tank looks done. It will turn-over, but shoots straight to "Hot".

Thank you in advance[&o]

 

Don't confuse an over temp issue with low fluid. When the resovoir gets low an icon that looks like a thermometer shows up on the dash. The temp gage tells you the temp. If you have low antifreeze the icon shows up immediatly.

 

Well I had them both, by the time I looked at them. Flashing, audible and needle pegged to the right!!!!

 

You're looking for the cause of the overheat in the first place. Its the overheating that blew the hose and tank.

Sooo, its either a clogged system somewhere (usually the radiator) or a stuck thermostat. The thermostat is most likely but does take either 5 hours of your time (and 20 bucks in parts) or a gob of money for a shop to replace. The radiator is unlikely expecially given the time frame in which it started overheating but possible.

Now when you've let it sit for a good long time and then turn it on how fast does it overheat? How does it sound when its running? Anything odd out of the exhaust?