Car wont heat up, fan turn on and off erratically

[Mattman25]

Hi, I recently bought a 1999 A3 1.8T. Seems to have a problem with the cooling system tho as it wont seem heat up past 20 degrees when driving normally. when its driving at low speeds I can hear the fan erratically turning on and off in 10 second bursts.

When the outside temperature is below 0 the engine warning light comes on and then disappears after a few mins.

There is no loss in coolant, the coolant is clean.

Im just wondering if any of you guys have had a similar problem and how you fixed it. Ive bought a new thermostate to replace but am beginning to wonder if it could be something else due to the fans turning on and off.

any ideas?

thanks

Matt

 

[Vex182]

Have a check of the fuses on top of the battery, remove them and check the connections are all good and clean.

 

[Jay A3]

I would suggest to Get it scanned. Coolant Temperature sensor?

 

[rraghvani]

Could be Coolant Temperature Sensor (prone to failure) or Thermostat.