S-Class (W223) 2021 to Present

Tire Pressure: Conflicting Recommendations

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Old Feb 20, 2023 | 10:03 AM
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2025 AMG GT 63, 2023 S500, 2022 GLE53
Tire Pressure: Conflicting Recommendations

I’m a little confused what tire pressure I should be using. The door jam recommends an eye-opening 40/46 while the fuel tank flap recommends 33/35 normal or 34/41 max. Which one is right? That 40/46 seems awfully high.



Fuel flap

Door jam
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Old Feb 20, 2023 | 10:14 AM
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The label on fuel filler door is correct. My 2022 has the same labels. Mercedes-Benz: The Best or Nothing!
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Old Feb 20, 2023 | 11:37 AM
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23 S580 Executive
Fuel flap. If your tires get below that you'll have a lot of faults with the driving aids which cancan be fixed by airing back up to the min. The car rides best at the min and you don't need to worry about performance driving: As you've likely already noticed the car doesn't exactly encourage hooliganism even though it will move out if you absolutely insist.

Last edited by crabman; Feb 20, 2023 at 11:40 AM.
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Old Feb 20, 2023 | 11:41 AM
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I accidentally hit the spoiler button but can't figure out how to get rid of it.... *Facepalm*
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Old Feb 20, 2023 | 12:11 PM
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Thanks, everyone.

I think I figured out why the door jam is so high. If you look at the fuel door there’s a note that says add 5 PSI for 100+ MPH. The door jam is the max fuel door value with that +5 added.

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Old Feb 20, 2023 | 01:31 PM
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Never made that connection, thanks!
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