AMG GLE 63 S Tire Pressure
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Joined: Nov 2022
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2023 Mercedes AMG GLE 53 4-Matic
AMG GLE 63 S Tire Pressure
I have had my 2023 GLE 63 for 2 weeks now.
I checked the readout for tire pressure and it read 44/42 front and 38 for back tires.
After letting it sit overnight in my pole barn it has climbed to 50/48 front and 44/43 rear.
Temps have been mid 80’s here in Minnesota. Regardless this seems too high. I have not added air so I am wondering why the pressure climb?
How would you be able to adjust pressure if the outside temp affected the reading?
Inside the gas cap I think the indicated pressure is 42/36.
I have not tried manually checking pressure, just what the vehicle shows on MBUX
I checked the readout for tire pressure and it read 44/42 front and 38 for back tires.
After letting it sit overnight in my pole barn it has climbed to 50/48 front and 44/43 rear.
Temps have been mid 80’s here in Minnesota. Regardless this seems too high. I have not added air so I am wondering why the pressure climb?
How would you be able to adjust pressure if the outside temp affected the reading?
Inside the gas cap I think the indicated pressure is 42/36.
I have not tried manually checking pressure, just what the vehicle shows on MBUX
Senior Member
Joined: May 2021
Posts: 251
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From: North of Houston, Texas
2013 CL 63, 2002 E 55, 04 Jaguar XJ8, 66 Jaguar XKE
Pressure increase is due to the temperature increase. PV=kT where k is a constant. T goes up, V stays constant, P goes up. It is due to the increased kinetic energy of the gas molecules in the tire. I would just go by the pressure chart on the fuel filler lid. One has to adjust when the temperature changes significantly. Hope that helps.
MBWorld God!
Joined: Dec 2019
Posts: 32,467
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Pressure increase is due to the temperature increase. PV=kT where k is a constant. T goes up, V stays constant, P goes up. It is due to the increased kinetic energy of the gas molecules in the tire. I would just go by the pressure chart on the fuel filler lid. One has to adjust when the temperature changes significantly. Hope that helps.
MBWorld God!
Joined: Dec 2019
Posts: 32,467
Likes: 6,342
MBWorld God!
Joined: Dec 2019
Posts: 32,467
Likes: 6,342
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