The Black S3 appears to have a heater problem. It's not overly warm even on Hi and doesn't blow air out of the passenger side into the footwell. Anyone have any ideas?
Im suffering a similar fault,but no air problems just heater not getting hot just warm ish.
So far ive done the waterpump,thermostat etc.
Used vcds to check the operation of the hot/cold flap etc and watched it while it was moving still no problems there,tonight ive removed the matrix pipes and flushed it but nothing came out just clear water but did notice the walls of the heater hoses coated in crud from years of use,if they are in the pipes then they are in teh matrix.
So ive come to the conclusion that the matrix is just not as efficient as it was when new,so do i rip the dash out....? dont know its not bad enough fro me to do at the mo,but im going to try that rad flush to see if it can dissolve any nastys in the matrix and then replace the coolant.
If no joy then ive got to do the matrix......******