car over heats changed water pump and thermstat still overheats on 1990 BMW 325i

bubbles out of radiator and i see small air like bubbles

by in Las Vegas, NV on December 22, 2011
1 answer
ANSWER by on December 22, 2011
Why did you change the water pump and thermostat? I'm guessing because it overheated, right. Have the cooling system check for HYDROCARBONS. Suspect you have a blown head gasket.