I can understand hope, but after 8 months of Model X ownership, I have such little hope left, I am resolved to "What it is"
And regarding this thread I started, I now have my conclusion, shared by at least one, but Thanks to All for the discussion.
After thorough testing with wind meters in different ambient temperatures comparing 5-seat vs 6-seat configs, I am now educated and better understand the need to separate cooling from air flow, although they are intermixed when it come to what a person feels.
Given all Model X configs have the same A/C compressor, the cooling capacity is the same for all. The difference lies in the different seating configs air flow, since the 5-seater has only one fan for all the vents, while the 6/7 seater has two separate fans and venting systems.
Without a doubt, the lack of a second fan in the 5-seater is a CLEAR DISADVANTAGE to the 2nd row passengers in a hot environment, who presence in the seat makes no difference on activating the single fan, unlike the 2-fan system.
In testing, it takes the 5-seater single fan on HIGH PLUS 2 of 4 front vents closed to equal the air flow from the B-pillars as compared to the same B-pillar vent air flow when the 6/7-seater rear fan was on HIGH, both of which measured at 5 MPH on my meter. Open up all the front vents, and the 5-seater B-pillar air flow drops to 3 MPH, obvious even to the hand, especially the sweating face.
As far as cooling a person, it is a combination of humidity, air temp and air flow to provide cooling effect, and 2nd row passengers entering a hot vehicle and hoping for a solid air flow of cool air will be disappointed in a 5-seater when it is hot outside, more so if it is humid.
This is a significant deficit for the 5-seater, of which only now is this being realized given the initial delivery late last year in hte cooler months
Plus, given all the overhead glass that has the standard heat transmission of factory glass, this will significantly work against the A/C cooling, but the addition of a quality thermal-blocking tinting throughout the MX makes a real difference in the summer heat of the warmer climates.
My personal experience with adding Huper Optik everywhere including above the visor level of the windshield made a huge difference last summer.
Now that I am moving to a 5-seater in a month, I will once again add a thermal tint, and am resigned to closing up to 2 of the 4 front vents in the rare event I have 2nd row human passengers if they need that for cooling.
Such a shame that in the most high-tech vehicle with a price tag starting over $80K, that this sort of maneuvering is essential.
So the Poll at the top is accurate in it's prediction, and should it be refreshed, changed from predicting to current experience, and filled out only by 5-seat owners, I am sure it would be over 90/10, and if specifically focused on the 2nd row seat, all would agree to the inadequacy of the cooling effectiveness of the 2nd row passengers in the summer heat.
Undoubtedly, pre-cooling is not just a luxury, it is essential for comfort, especially in the summertime of a 5-seater 2nd row passenger.
And regarding this thread I started, I now have my conclusion, shared by at least one, but Thanks to All for the discussion.
After thorough testing with wind meters in different ambient temperatures comparing 5-seat vs 6-seat configs, I am now educated and better understand the need to separate cooling from air flow, although they are intermixed when it come to what a person feels.
Given all Model X configs have the same A/C compressor, the cooling capacity is the same for all. The difference lies in the different seating configs air flow, since the 5-seater has only one fan for all the vents, while the 6/7 seater has two separate fans and venting systems.
Without a doubt, the lack of a second fan in the 5-seater is a CLEAR DISADVANTAGE to the 2nd row passengers in a hot environment, who presence in the seat makes no difference on activating the single fan, unlike the 2-fan system.
In testing, it takes the 5-seater single fan on HIGH PLUS 2 of 4 front vents closed to equal the air flow from the B-pillars as compared to the same B-pillar vent air flow when the 6/7-seater rear fan was on HIGH, both of which measured at 5 MPH on my meter. Open up all the front vents, and the 5-seater B-pillar air flow drops to 3 MPH, obvious even to the hand, especially the sweating face.
As far as cooling a person, it is a combination of humidity, air temp and air flow to provide cooling effect, and 2nd row passengers entering a hot vehicle and hoping for a solid air flow of cool air will be disappointed in a 5-seater when it is hot outside, more so if it is humid.
This is a significant deficit for the 5-seater, of which only now is this being realized given the initial delivery late last year in hte cooler months
Plus, given all the overhead glass that has the standard heat transmission of factory glass, this will significantly work against the A/C cooling, but the addition of a quality thermal-blocking tinting throughout the MX makes a real difference in the summer heat of the warmer climates.
My personal experience with adding Huper Optik everywhere including above the visor level of the windshield made a huge difference last summer.
Now that I am moving to a 5-seater in a month, I will once again add a thermal tint, and am resigned to closing up to 2 of the 4 front vents in the rare event I have 2nd row human passengers if they need that for cooling.
Such a shame that in the most high-tech vehicle with a price tag starting over $80K, that this sort of maneuvering is essential.
So the Poll at the top is accurate in it's prediction, and should it be refreshed, changed from predicting to current experience, and filled out only by 5-seat owners, I am sure it would be over 90/10, and if specifically focused on the 2nd row seat, all would agree to the inadequacy of the cooling effectiveness of the 2nd row passengers in the summer heat.
Undoubtedly, pre-cooling is not just a luxury, it is essential for comfort, especially in the summertime of a 5-seater 2nd row passenger.
