Radiator/Interior heating issues

[babyblueCE]

Hello all, i had to change my radiator last week and was changed a Nissens rad. The heating for the interior of the car was working greqat when one morning the heater wasn't as warm as i was hoping and was blowing lukewarm heat. I thought this maybe because the car was still warming up but after an hour of driving the heater was still blowing lukewarm heat. Does anyone know what could be causing this problem?

 

[st13phil]

Possibly an airlock in the heater circuit?

 

[babyblueCE]

how would i need to get rid of this airlock?

 

[st13phil]

Try following Grober's suggestions in this post http://www.mbclub.co.uk/forums/1381815-post3.html