heater matrix replaced but still no heat - needs some kind of valve?

[Horney]

It's to stop the water pressure blowing your matrix up. It was fitted as a recall when VW realised there was a problem. If your matric has been replaced with a MKIII one then you don't even need the valve anymore.

Nick

[Andy Jeffries]

It's to stop the water pressure blowing your matrix up. It was fitted as a recall when VW realised there was a problem. If your matric has been replaced with a MKIII one then you don't even need the valve anymore.

Nick

ahh..so is there a valve that connects to the heater control slider to regulate the temp also? and can this one fail?

I told the guy at the garage to fit a mk3 one because of this but he said that they were the same..guess im gettin a big lesson in why not to trust a garage!

[Horney]

There is no valve to control the heat. The slider just moves a flap to give you hot, cold or mixed air. I could be he hasn't connected the flap up properly, when you move the heat one can you feel the resistance change as it moves along, can you hear a flap moving in the dash?

Nick

[cняis]

There is no valve to control the heat. The slider just moves a flap to give you hot, cold or mixed air. I could be he hasn't connected the flap up properly, when you move the heat one can you feel the resistance change as it moves along, can you hear a flap moving in the dash?

Nick

i assume you connected all the heater control cables back up? 

*cough*