Audi Tt Mk1 Overheating 🔥 1 8t Radiator Fan Not Working Properly What To Check Diy Guide 🔧

Audi Tt Mk1 Overheating рџ ґ 1 8t Radiator Fan No The radiator fans on the audi tt roadster restoration aren't working properly at all. i' i can't believe how close i am but there's something tripping me up. the radiator fans on the audi tt. There are only 3 issues that cause this. first is the temp sensor that screws into the radiator. if that does not close the connection at a certain temp it will not allow the voltage to be relayed to the relay box under battery thus the fans will not come on when car is getting warm. second is the relay box itself.

Tt Mk1 Overheating Solved Audiworld Forums If you want to test the fans, get to the connector to the thermal switch on the rad. it's a three pin connector. one pin is the common ve 12v feed one pin is the feed to the low speed fans. one pin is the feed to the high speed fans. the low speed fans should be able to run with the ignition off. the high speed need the ignition on to run. Caused by corrosion & poor connection of fuses etc. hopefully replacing fuse housing etc will cure your prob. quite a high amperage connection, so a poor connection will cause lots of heat. 1 for this solution. my ac and cooling fans failed on the same day. first green fuse has got hot and had a bad contact. To test it out of the car, you just need to wire it across the terminals of the battery. if the fan works when you test it, then it might be the fan controller which is near the thermal switch, under the battery. this is an older thread, you may not receive a response, and could be reviving an old thread. 2003 audi tt 1.8t the symptoms are as follows: both fans only operate on high speed. both fans only operate when ac is on. no after run fans. fans cycle on high speed for a few seconds on and off. not overheating, ac works fine. both fans were replaced about 3 years ago.

Overheating Warning Audi Tt Forum To test it out of the car, you just need to wire it across the terminals of the battery. if the fan works when you test it, then it might be the fan controller which is near the thermal switch, under the battery. this is an older thread, you may not receive a response, and could be reviving an old thread. 2003 audi tt 1.8t the symptoms are as follows: both fans only operate on high speed. both fans only operate when ac is on. no after run fans. fans cycle on high speed for a few seconds on and off. not overheating, ac works fine. both fans were replaced about 3 years ago. This video shows the location of the temperature sensors for the coolant and the radiator sensor and a fix for the fans. Your engine temperature sensor is responsible for relaying your engine temp to the ecu. once the temp gets so hot, the ecu commands the radiator fan to come on. if your tt has a bad engine temp sensor the radiator fan won’t know to come on, because the ecu won’t know how hot the engine is. you’ll need to locate and test the engine temp.

The Audi Tt Forum вђў View Topic Help Please With Overheating Mk1 225 Sorted This video shows the location of the temperature sensors for the coolant and the radiator sensor and a fix for the fans. Your engine temperature sensor is responsible for relaying your engine temp to the ecu. once the temp gets so hot, the ecu commands the radiator fan to come on. if your tt has a bad engine temp sensor the radiator fan won’t know to come on, because the ecu won’t know how hot the engine is. you’ll need to locate and test the engine temp.