Hi Guys,
Thanks form your replies

I got the matrix from B and B components on ebay. I know......ebay :embarassed: but in all fairness it was new and there feedback was good. I thought a heater matrix was just a heater matrix

I had it fitted at a garage, not sure if I can take it back? the heater blows.....but I could blow harder! it gets warmish but nowhere near what it should. Pipes are all pretty new. Temperature is ok at the mo, It's making some really strange noises, coming from behind centre console, like gurgling and sucking noises. As I am just a girl lol and know bits and bobs, I not sure about trying to fix it myself.
Might just have to bypass it AGAIN and be cold, I'm pretty skint now ater paying for it to be fitted and two front tyres

Thanks
Ali