This is my 3rd post about this, can someone help??
Just replaced the cylinder head on my a3 since it was cracked (early 2.0 2004). its all back together and running sweet just one issue, i cant get the fans to cut in at operating temp. the heaters inside stay cold, sometimes go hot for a bit but mostly cold, i can see that their is coolant circulating so just wondering if its badly air locked. cant even drive the car 10 miles without the coolant being forced out of the overflow on the cap, resulting in low coolant light coming on, car never overheats. left the car ticking over to get to operating temp with cap on and with out cap and its still not working, this morning i could here like a bubbling sound from the heater matrix when the heaters did blow hot, starting to give up now