Heating problem

Hi all!

I have had problems with my heating in my TD5 Defender 90. If i let the engine get to running temp and turn the blowers on i get hot air for about 10 seconds then it goes cold. I am presuming my cooling system has an air blockage as i renewed my coolant recently. I have tried bleeding it but im not getting any air bubbles out of the bleed hole.

Any ideas anyone?

Thay are a bitch to bleed sometimes. Assuming you do not have a physical blockage then bleed system until hot air blows from heater at idle. Otherwise you may have a dodgy stat

T