Can smell warm coolant after driving thirty minutes

2007 VAUXHALL ZAFIRA
150,000 MILES • 1.8L • MANUAL
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NEIL WILLIAM GRIMMER
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  • 2 POSTS
When my car has been on a run after about half an hour I can smell warm coolant inside the car through the heaters.
May 30, 2019 at 12:30 PM
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JONNYB1963
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 263 POSTS
My experience with this sort of symptom is that the heater core is leaking, or related one of the related hoses/fittings is leaking.

Are you able to notice any steam inside the vehicle under the dashboard?

Regards
Jon
May 30, 2019 at 12:46 PM
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NEIL WILLIAM GRIMMER
  • MEMBER
  • 2 POSTS
Hi, there's no steam or anything and my coolant level stays the same but the engine feels really hot after half an hour.
May 30, 2019 at 12:52 PM
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JONNYB1963
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 263 POSTS
Well, the safe thing to do here is to have your coolant system pressure tested. You can do this yourself if you have the right tools.

See this link on how to do it:
https://www.2carpros.com/articles/radiator-pressure-test

Regards,
Jon
May 30, 2019 at 1:28 PM