I bought a 2015 rapid spaceback 

1.6 diesel sport in February and notice at weekend that the heater not working properly 

It has climatronic system and despite a long run heats  not much more than lukewarm 

when I put on max windscreen heat the driver’s side is tepid warm yet passenger side not warm 

I have checked  cabin filter and it was immaculate 

noticed in summer when air con on the blower was coming and going almost like it was choking

winter approaching and would appreciate any suggestions or help on this 

 

Does the car reach normal temp as in gauge in the middle ? It could be one of the flap motors in the dash and if so you need to run diagnostics on the car, see if anybody near you has  VCDS. 

Yeah car getting up to temp, had the temp flap motor out and it’s working as are the other flaps I can see

wondernow if matrix could be blocked hence getting some heat but mostly at the one side

Diagnostic did read temp flap motor fault but it’s def operating as it should