Heater issue on 2005 GC CRD.
On our RHD 2005 GC CRD 3.0L the heater works okay on manual, but if you switch it to "Auto" on the left hand side of the climate control with the right hand selector to body and feet, you need to have the temp control right over to the red dot to feel any benefit, otherwise it is cold air blowing in
If you move it only one notch down, no more heat and you freeze your butt off. If you leave it on the red dot after awhile it gets too hot to tolerate. No fault code is showing.
Any one experience similar and is there a fix? Thanks.