johndoh1966
Registered User
I am seeking information or flow diagrams for the heater/cooling system for a4 1.8t, the common problem of heater not working until the revs have been increased. All leaks have been repaired and water pump has been replaced,it has been bled by every method I could come up with .Bleeding it properl has helped but the problem still exists. That is the heater does not function well at low revs. There just seems to be very poor flow at low revs.:thumbsup: