dalegroven

Hello..
I am new to this forum. I have had my 2002 Audi TT Roadster 225 for about 2 years. It has about 63000 original miles on it. I had recently had the waterpump and drive belts all replaced after a waterpump failure. A week ago we had a day about 80 degrees on the mountain pass and a decided to take it for a drive. I noticed that when I had it in 5th or 6th and climbing hills the temp would creep up and stabilize at about 7/8 of the way up the temp gauge. The first time I noticed it I had parked and saw the temp was up but just then a fan kicked on and the temp dropped quick. Drove it some more and temp was stable until I again drove it up hill in high gear. As soon as I slowed and shifted down the fan would kick on and the temp would drop to normal. Seemed to generally happen when climbing hills. Any suggestions?

Vegas-roadsTTer

There have been reports of similar problems if a non-OEM thermostat was installed, even if it was made by the same manufacturer of the OEM, Wahler. I had the same symptoms in my car whith a non-OEM thermosatat. I replaced it with an Audi and solved the problem. The non-OEM opens slightly later.

dalegroven

Thanks.. I don't think my t-stat was replaced..?? Still the same I think.. I will look into it.