Cooling system

Tiny
CASANOVA201
  • MEMBER
  • 1997 BMW 528
  • 200,000 MILES
My car was overheating and when I stopped to check my coolant level it was completely empty. When I attempted to add coolant I realized the reservoir was not holding any of the coolant because it had a major crack in the side. So I replaced the radiator reservoir and my car still continues to overheat. Is it a thermostat problem or could I possible have added the coolant in such a way to cause an air bubble in my coolant system causing my car to continue to overheat?
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Monday, May 20th, 2013 AT 9:34 AM

1 Reply

Tiny
KHLOW2008
  • EXPERT
The system self bleeds after a little running but if there are too much air in system, you would need to allow the enigne to cool down before topping up coolant again. You might need to repeat the process a few times.

If coolant level is correct and overheating is still ccurring, it could be the thermostat or even a blown head gasket.
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Monday, May 20th, 2013 AT 10:10 AM

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