my car would start to overheat if i floor it one time. is there anything i can do to keep the engine cooler?

 

Get new headgaskets and flush the cooling system. Make sure your fans are coming on. Make sure t-stat is opening at the right temp.

 

At idle with the AC running, both electric fans should be running. Where does your temp needle stay most of the time. Should stay rock solid in the middle. Give us some more information about how and when it occurs.

 

Get IR thermometer. Use it to get some radiator temps, my guess is the thermostat is stuck closed & not letting coolant into the radiator.

 

check your thermostat, either installed improperly or sticking closed.,
cooling system leaks, from either hose connections or from the cylinder head due to overheating.
fan, might be from faulty fan clutch
water pump, belts and hoses, check belt tension and condition. A loose belt that slips may prevent the water pump from circulating coolant fast enough and/or the fan from turning fast for proper cooling.
and audi 4000 radiator, older copper and aluminum radiators tend to get clogged, restricting the flow of coolant.

 

my 2000 a6 is overheating,coolant bottle is full,is it my fan or the thermostat ?

 

Like 2k said, Thermostat is probably stuck closed. Check the fan make sure its running and get a reading on the temp. check your manual for troubleshooting tips. Also Check to see if you have leaks or broken seals could be venting into atmosphere through the hoses.

 

where is the thermostat located ?and is it easy to change?2000 Audi A6 2.7t auto

 

http://www.audidiy.com/
Trini Everything you need to know is on this website. If you can't find it Ill ask 2ks4 Because I dont remember where it is.

 

You don't want to know!

It's under the timing belt on the passenger side, by the water pump. It takes about 4-6hrs to get to it.