2004 BMW X3 Q&A
2004 BMW X3 Question: WHAT CAUSES OVERHEATING UNDER THE HOOD AND LIQUID GUSHES DOWN IMMEDIATELY?
I WAS DRIVING WHEN THE NEEDLE ON HEAT SENSOR WENT TO RED AND IMMEDIATELY SMOKE CAME OUT UNDER THE HOOD. Liquid (or water) then gushed out.I had my car towed to the BMW dealer/service. They told me about plastic housing, expansion tank, hose and coolant. How could this problem be prevented? I had an extended warranty (100 mi./6 yrs) and my car was regularly serviced and checked up until 2 weeks ago. TKS FOR YOUR RESPONSE. - chingkee
There are 2 common problems on this cooling system which could cause overheating: 1, the electrical thermostat fails 2, the plastic impeller of the water pump separates from the shaft. It also very important to use the factory or equivalent coolant (blue color) in these cooling systems - I don't think the dealer would use anything else, but many independent shop wouldn't know the importance of it. Zee - ZeeTech