hmfctal
Member
Registered: 1st Sep 08
Location: Falkirk
User status: Offline
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Where is the valve to let air out the cooling system on a corsa? i heard theres prob an air lock in my heater matrix. Changed the thermostat. Can see air bubbles in the system. Any idea where the valve(s) are?
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Ellis
Member
Registered: 11th Sep 07
Location: Aberdeenshire
User status: Offline
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Take the cap of the expansion bottle and run it up until it boils over slightly, that should get rid of the air lock
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Simon_16v
Member
Registered: 14th Aug 06
Location: Yorkshire
User status: Offline
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Coolant cap off, leave engine running until the fan kicks in but put your heaters on hot and as fast as they go.
When the heaters get hot the airlock should have gone 
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hmfctal
Member
Registered: 1st Sep 08
Location: Falkirk
User status: Offline
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The heaters don't get hot. Thats my problem. Tried all that cap off stuff. Ive been searching google and said airlock in heater matrix, needing to find the bleeder valve, or take pipes off to let it out.
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barneykarl
Member
Registered: 29th Jul 06
Location: Stevenage
User status: Offline
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Lots of these heater not working/ suspected air locks lately, as far as I know there is no bleeder valve, its just trial and error and drain the system and start again.
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