04-16-2023, 11:30 AM | #1 |
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what tire pressure should I have ?
I have a 2021 540 xdrive with the 19 inch sport wheels and tires. All are same size and width.
I always thought the tire pressure should be same for all tires. When I took the car to a service a couple of months ago they made the tire pressure a lot lower in the front wheels then back wheels. And now when I go into the tire pressure screen recommendation it’s showing it should be lower in the front vs rear tires. Is that a error ? |
04-16-2023, 11:40 AM | #3 |
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04-16-2023, 01:33 PM | #4 |
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04-16-2023, 03:29 PM | #5 |
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That’s obviously for cold tyres
I use the idrive display which compensates for temperature so if the tyre is warm, it’s recommended pressure takes that into account I have a shortcut button asdhh in gamed to that so I can check the pressures every journey If the ambient temperature changes significantly ( keep an eye on the weather) then you will probably habe to adjust your pressures This will all ensure that you get the best and even wear out of tyres especially if you have run flats , thes mask under inflated tyres very well! |
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04-16-2023, 07:57 PM | #6 | |
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04-17-2023, 06:22 AM | #7 |
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for my 21 m550 the recommended is 38 in the front and 35 in the rear, if i recall correctly. back is less than the front for sure. the odd part is for 2018 m550i they recommend the front to be higher.
I would just go off the door label. |
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04-29-2023, 12:02 AM | #11 | |
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mine is minimum 42PSI on the door! up to 50+ when loaded! (20" RFTs) |
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04-29-2023, 12:04 AM | #12 |
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could you please post a picture of your door card and if you could tell us the tire size so I know what to do if i move away from these wheels?
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