2017 MS P100D took delivery Dec 5 and I believe this behavior exists since day 1 although cannot be normal. Two visits to Dania, FL SC and still the same.
Early morning or night when outside temp is cooler , usually less than 78, A/C works perfect and blows cold air at all times relative to cabin temp setting.
During the day when temp is above 85. If A/C is on and car is stopped, A/C works perfect and blows cold air at all times relative to cabin temp setting
During the day when temp is above 85 and vehicle is moving, cycles of cold air followed by intervals of uncomfortable hot air becomes a repeating cycle. Sometimes if vehicle is at highway speeds of 60 or above to thy cycles to not occur.
I have tried full auto as well as manual settings with temp set as far down as LO and the end result is the same.
SC changed pressure switches and temperature control module but it has not fixed it. They have a wiring harness on order know but I feel doubtful that that is the problem.
Anybody experienced anything like this?
Early morning or night when outside temp is cooler , usually less than 78, A/C works perfect and blows cold air at all times relative to cabin temp setting.
During the day when temp is above 85. If A/C is on and car is stopped, A/C works perfect and blows cold air at all times relative to cabin temp setting
During the day when temp is above 85 and vehicle is moving, cycles of cold air followed by intervals of uncomfortable hot air becomes a repeating cycle. Sometimes if vehicle is at highway speeds of 60 or above to thy cycles to not occur.
I have tried full auto as well as manual settings with temp set as far down as LO and the end result is the same.
SC changed pressure switches and temperature control module but it has not fixed it. They have a wiring harness on order know but I feel doubtful that that is the problem.
Anybody experienced anything like this?