Ventilated seats
#1
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It was a hot one today and needed to take a long drive in my new XF. The air conditioning worked perfectly cooling the car down very quickly after baking outside all day. However I cannot say the same for the ventilated seats. I tuned it on, could hear the fan-like sound but the seat did not cool down. Once I got home I got out and tried to feel air coming from the seat but felt nothing - just a hot seat. My ride was long enough that something should have happened.
Any ideas?
Thanks
Any ideas?
Thanks
#4
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I have never experienced ventilated seats until I turned them on in the wife's Lexus last week. I was not very impressed and didn't think they were working at all. However, I noticed that, after 20 minutes of having the seat on full cool, that the seat was not as warm as it normally would be, so there was some cooling going on. I think, perhaps, seat heating is easier and quicker than seat cooling..
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#12
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The Owner's Manual is a bit coy about this. Although there are three levels of "cooling" I suspect this is just fan speed.
There would be no reason to cool the seat itself and unless the airflow blows up through the seat ( I assume it draws air down through the seat cushion) cooling the seat by drawing air down through the cushion would be impossible. Just getting AC air separately fed to the seat cushion would be quite elaborate. The cabin air is at the correct "cool" temperature anyway as it has already been through the air conditioner. Most of the sensation of heat in the car seat is due to lack of airflow, any level of airflow is going to feel cool.
There would be no reason to cool the seat itself and unless the airflow blows up through the seat ( I assume it draws air down through the seat cushion) cooling the seat by drawing air down through the cushion would be impossible. Just getting AC air separately fed to the seat cushion would be quite elaborate. The cabin air is at the correct "cool" temperature anyway as it has already been through the air conditioner. Most of the sensation of heat in the car seat is due to lack of airflow, any level of airflow is going to feel cool.
#13
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See the attached SAE document and Benzworld discussion....apparently Jaguar and some other manufacturers use thermoelectric technology to cool the seats.
http://Cooling Seats - Benzworld_org- dicussion forums
http://Cooling Seats - Benzworld_org- dicussion forums
#15
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Just tried an experiment with my XF. Turned climate control completely off and then activated seat cooling. Seat and seat back started to cool almost immediately and after a minute or so felt very cool. This would indicate thermoelectric cooling only is used for the seats because the A/C and ventilation remained off.
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