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Matt
Matt, Mechanical Engineer
Category: BMW
Satisfied Customers: 21708
Experience:  BEng hons Mech engineering, in auto industry 22 years
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When I bleed my bmw of airlocks it runs fine all day then temperature

Customer Question

When I bleed my bmw of airlocks it runs fine all day then temperature gauge hits max but runs fine when bleed
Submitted: 3 years ago.
Category: BMW
Expert:  Matt replied 3 years ago.
Hello

if you keep getting air in the system then you may have a head gasket leak

so the thing to try is a head gasket / block test kit as these take a coolant sample and analyse it for any signs of combustion gas - if present this would indicate the head gasket is on its way out

http://www.uktools.com/block-tester-p-12508.html

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