sv4

I have a problem with the AC in my C230K that has left my regular independent mechanic stumped. On first start in the morning ( or after leaving the car parked for 5-6 hours ), the AC will only start blowing cold air after 6-10 minutes although the fan starts immediately. Previously, the cool air would come on fairly quickly, at least within a minute of turning on the AC. Once the cool air comes on, though, the AC performs very well. The AC would then also blow cool air almost immediately after short periods of stopping/restarting the car.

Full check on the airconditioning system revealed no leaks and refrigerant remains fully charged. Winstar diagnostics revealed a faulty evaporator temperature sensor which was promptly replaced. However,while further diagnostics revealed no more faults, the proble, persists. I would appreciate any suggestions, thanks.