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Cooling system overheating

Tiny
VINCE.STEVENTON
  • MEMBER
  • 2003 MINI ONE
  • 1.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 115,000 MILES
Hi, I have a problem with my car. The coolant is boiling in the header tank and the heater is blowing cold air. I have changed the thermostat and thermostat housing and the radiator cap, but still overheating. I have now taken the thermostat out to rule out any issues with this part.

Do you have any ideas?

Kind regards.

Vince.
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Saturday, December 23rd, 2017 AT 6:35 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hi Vince.

This sounds like you have a blown head gasket which fills the heater core with exhaust which causes it not to work.

Here is a guide to help you confirm the failure:

https://www.2carpros.com/articles/head-gasket-blown-test

Please let us know what you find.

Cheers, Ken

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Sunday, December 24th, 2017 AT 11:00 AM

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