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[medwaykent]

just going out to mess with our heating bloody cold outside been dreading it but misses moaning as shes the one that uses the car ..

[medwaykent]

well i spent about 4 hours messing about under bonnet got the matrix hoses off at HBV (finally) washed through matrix with hose pipe reassembled using jubilee clips instead off the orginal ones (mutch easier) and whoppeeeeeeeeeee heat in car .... 

[omega trev]

great news mate im glad youve sorted your problem ill do the same thing and see what happens cheers

[GaryBC]

This all sounds horribly familiar!! I've just changed my HBV and flushed the matrix and all I've achieved is to warm the air up from ambient to tepid!! I'm waiting to see if a few days motoring percolates any air out of the system.

[Jusme]

Hope i'm not hijacking your thread, but same problem.
Heater was working fine then some weeks ago started getting cooler until now,  'nothing warm'. My mate changed the hbv at my insistance although he said the old one was working perfectly, which it was. Today he flushed out the matrix with a hosepipe, the water ran out immediately and was clean, still no joy. The top hose to the matrix seems to be getting warm/hot, but the bottom one feels cold ? What I have found confusing is, whatever steady speed I travel at there is just cold air at the vents, 'but', gun the old girl for a few seconds and we get warm air, turn on the fan and it just gets progressively colder, but if I drive erratically by continually gunning the engine, we get warm air almost continuously ??  As my Son was really cheesed off continually rubbing the ice off the inside of the screen on the school run today, any help would be greatly appreciated. Thanks.