Vehicle & Technical > Discovery

Air lock !!!!!

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loony landy:
Just done the head gasket on my 300tdi and have done 90 odd miles since, the water levels are fine and the heaters were working fine so all seemed well.

Wentout today in it and the heaters came on ok and everything was as it should be but then the temp gauge wentup and down lke a yo yo and the heaters went cold !!!

Got out to check the water etc and the levels were fine ut i had a lot of air gurgling from the system!!

My question is what is the best way to get rid f this air as it seems i have a lot of trapped air in the system.


cheers


tony

squaddie_fox:
everytime ive had an air lock its been in the heater matrix unless u got a air bleed valve on heater matrix pipe the way i do it is to have heaters on full an leave expansion cap off an rev car get it nice an warm an watch the air come out or i take the heater matrix water pipe off an fill it up via that pipe an then do what i said at beginin of posts some cars will bleed really easy an some can be a right pain to do

loony landy:
i tink it is the heater matrix as it is hot one min and cold the next !!!!  really pisses me off though as you think it is ok lol

squaddie_fox:
yep i know the feelin when heater workin perfect for 20 mins while its tickin over then u go for a drive an 5 mins into journey starts blowin cold air an u hear that gurglin noise comin from behind the dash lol

J.D.:
At the back of the engine bay is the heater matrix pipe, undo the jubliee clip and do them up until the air is out of the heate rmatrix. If the problem persists it may be that the heater matrix is leaking.

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