worked a treat cheers guys, took the heater matrix out, what a bastard it was! A fair bit clogged up with brown sludgey crap, flushed it out with got warm water and it's all now clear. Hot heaters again :)

yeah engine temperature is fine runs as normal.. just not getting hot, will take it off tomorror and give it a good flush out just read haynes manual doesn't sound to tricky. Just takes ages to defrost car with it only gettin warmish lol.

Sounds like a blocked matrix to me, I take it the engine temperature is still normal? Shame its winter really, just buy yourself an extra coat and save a days work

yeah, it's just about getting warm but not very warm like they should be. All pipes are hot in the engine, no pressure now. So i guess the matrix is slightly blocked? Would this cause it not to get as hot?

its a pipes off and drain job really. never changed one myself but a mates had the same problem and flushing it fixed it for about a year

ah rite, where's best to clamp the hoses or should i just drain it all out? Are they expensive new?

Yep it can, its a pain in the arse to change I think but you can take the pipes off it and flush it both ways with a hosepipe, will porbably work but might not last forever becuse it never fully unblocks

can the matrix get full of crap?

will have a look :)

as above check cable is opening the control on the matrix first.

The pulley cable on the heat controller dial might have come off its clips, take the bottom passenger shelf off and have a look, simple problem mine had :)

yeah have done this as well when replaced the thermostat, new coolant. How do i bleed it properly?

Air lock?

try flushing the coolant and bleeding the system through with new coolant/anti freeze.

can the matrix get blocked up?

thermostat is new.

Could be the thermastat, that was the cause for my car.

Hi, my heater in my corsa are oinly getting to a warm temperature no were as hot as it should get. It's got an xe in, plenty of water in expansion bottle, when you let the car warm up should there be pressure in the pipes so when you take off the cap the presure should be released? Or is it something to do with the heater matrix? If so how do i solve the problem? Thanks