Peugeot 306 dt sport ive got a dreadful heater

scottishpaul · Post by **scottishpaul** » 07 Dec 2009, 18:48

ive tryed to flush out heater matrix with little joys of getting any heat at all ....new thermostat fitted a while ago so lets the temp come up at least ....how big a job to change matrix.......... is there a vacuum that makes the flaps on controls distrabute the heat to different areas as i dont hear one doing anything on my car the only place im getting any form of heat is out middle vents on dash ,at my feet and windscreen its allways cold the now

evilally · Post by **evilally** » 07 Dec 2009, 23:25

Hi Paul,

Before you go to all that trouble, are you sure it's the matrix? As I think it's a foul job on the 306 that's best avoided. Could it be a mixer flap stuck on cold? Do the hoses going in and out of the heater matrix in the engine bay both get hot?

scottishpaul · Post by **scottishpaul** » 07 Dec 2009, 23:29

evilally wrote:Hi Paul,

Before you go to all that trouble, are you sure it's the matrix? As I think it's a foul job on the 306 that's best avoided. Could it be a mixer flap stuck on cold? Do the hoses going in and out of the heater matrix in the engine bay both get hot?

i need to have a look and see ....i think ive changed a matrix on one before and im sure it was a dash out ....but with the weather the now a heater is a must .will let u know once ive had a look the morra ....paul

evilally · Post by **evilally** » 07 Dec 2009, 23:43

Yeah, neighbour had to change one, and it was dash out. His car was in bits for months and he was always moaning about it.....and he's a mechanic!

Post by **CitroJim** » 12 Dec 2009, 22:21

I take it you've bled the cooling system well Paul. the matrix pipes are a common place for an airlock to find a comfy home. There should be a bleed valve on one of the matrix pipes.

Shame on a mechanic to take months to swap a heater matrix Ally

We Xantia lads can do them in a day comfortably and it's just as horrendous as a 306

A duff matrix normally just leaks. A total blockage is unusual - unless someone before you has stuffed the cooling system full of a low quality rad sealer product.