06 MINI NOT TAKING COOLANT
 

Hey I work for a body shop and have a 06 mini here that we replaced a radiator in. I was wondering if any of you guys have had problem when refilling these with coolant. We can not seem to get this car to "burp" and it keeps overheating on us.

Any suggestions?? Is there a valve we should be opening or anything like that?

Thanks In advance.