Front tire pressure 50 PSI ?

HerkHealer · 10-20-2023, 12:53 PM

Took her out for a nice stroll this morning, and got the low tire pressure warning. Checked pressure and it was 46 PSI, which always has been recommended previously. However, now its saying recommended pressure is 50 PSI ???

Went into settings and reset everything to Summer Tire, 20" wheel and speed above 100 mph. Still saying recommended pressure is 50 PSI.
First time i've seen this. Previously it was always recommended to 46 PSI.

Anyone have a fix for this ?

Mach550 · 10-20-2023, 01:04 PM

reset tire settings and let it relearn pressures?

HerkHealer · 10-20-2023, 01:06 PM

Quote:

Originally Posted by Mach550

reset tire settings and let it relearn pressures?

I did that twice. Drove around for about 20 miles, still saying 50 PSI.
Just started out of the blue today for some reason.
i may reset I Drive and see if that does anything.

Joe-BMW33 · 10-20-2023, 01:37 PM

That is strange. My tire pressure recommended settings is 41 front and 44 rear. 46 up front? Aren't we running the same setup? Michelin Summer?

Chappers 71 · 10-20-2023, 02:05 PM

Those pressures are pretty high, must be the difference between 19’s & 20” the G31 runs @ 2.4 BAR (34.8psi)

HerkHealer · 10-20-2023, 03:05 PM

Quote:

Originally Posted by Joe-BMW33

That is strange. My tire pressure recommended settings is 41 front and 44 rear. 46 up front? Aren't we running the same setup? Michelin Summer?

Yes Joe, we are. PS4S for me.
Just went and started it up, and its back to 46 PSI again. Now that you mention your settings, I remember mine being that way too. I wonder what the fuck is going on here? Have to figure it out because I got a warning cannot go over 80mph, and I cant have that.

Neusser · 10-20-2023, 04:22 PM

Quote:

Originally Posted by HerkHealer

Took her out for a nice stroll this morning, and got the low tire pressure warning. Checked pressure and it was 46 PSI, which always has been recommended previously. However, now its saying recommended pressure is 50 PSI ???

Went into settings and reset everything to Summer Tire, 20" wheel and speed above 100 mph. Still saying recommended pressure is 50 PSI.
First time i've seen this. Previously it was always recommended to 46 PSI.

Anyone have a fix for this ?

46 psi?

That must be like driving on rollerskates. I run about 30 on the 540i Touring and I get perfect wear and a very connected feel. Highest I ever went was 44 and aside from turn-in, the handling was horrible.

HerkHealer · 10-20-2023, 04:40 PM

Quote:

Originally Posted by Neusser

46 psi?

That must be like driving on rollerskates. I run about 30 on the 540i Touring and I get perfect wear and a very connected feel. Highest I ever went was 44 and aside from turn-in, the handling was horrible.

Yea, I need to fix this shit asap.
Problem is I Drive freaks out thinking I have a flat or something going on and limits me to 80 mph or less. Going to try and reset I Drive and maybe cycle through different tire sizes/setups to get it back to normal.

Neusser · 10-20-2023, 05:02 PM

Quote:

Originally Posted by HerkHealer

Yea, I need to fix this shit asap.
Problem is I Drive freaks out thinking I have a flat or something going on and limits me to 80 mph or less. Going to try and reset I Drive and maybe cycle through different tire sizes/setups to get it back to normal.

Assuming no other weird issues, go into Idrive and choose "other" for tires. Then you can run whatever you want.

LogicalApex · 10-20-2023, 09:59 PM

Was it parked on a hot street or checked after driving?

The recommended pressure reads tire temperatures to give you an accurate recommendation. Normal recommendations are on a “cold” tire.

BMW012 · 10-21-2023, 06:12 AM

on my 23 m550i the recommendations changes around as well. can see it change on the mybmw app. i think it takes into consideration the last drive and outside temp?

HerkHealer · 10-21-2023, 07:20 AM

Quote:

Originally Posted by LogicalApex

Was it parked on a hot street or checked after driving?

The recommended pressure reads tire temperatures to give you an accurate recommendation. Normal recommendations are on a “cold” tire.

No, I live in Nashua NH.
Temps were mid to high 50 degrees. I think something is screwy with it because 50 PSI is ridiculous for a high performance street tire (PS4S).

Chappers 71 · 10-21-2023, 07:54 AM

Recommended m550i tyre pressures for staggered 20” wheels copied & pasted below

Recommended tire pressure for 2021 BMW M550i xDrive is 38 psi to 42 psi for front tires and 35 psi to 39 psi for rear tires.

I though 46psi was rather high

AP · 10-21-2023, 08:50 AM

I think 46psi is the highest recommendation I’ve seen on my m550 with 20 inch tyres

HerkHealer · 10-21-2023, 11:33 AM

Quote:

Originally Posted by AP

I think 46psi is the highest recommendation I’ve seen on my m550 with 20 inch tyres

For 3 hours yesterday, with temps just under 60 degrees, I was getting low pressure messages and could not go over 80 mph because I was not at 50PSI for the front tires. I will take pics if it happens again. I think 50 psi is ridiculous.

AP · 10-21-2023, 11:37 AM

Yeh that does a bit too high

Neusser · 10-23-2023, 04:51 AM

Quote:

Originally Posted by AP

Yeh that does a bit too high

It is way too high. The US pressures are far too high in general, as the legislation that forces manufacturers to post high pressures came from the old Firestone court case.

Best to check Euro half-load pressures and adjust up or down from there, depending on tire and wear.

2022M550i · 10-23-2023, 04:00 PM

Quote:

Originally Posted by Neusser

It is way too high. The US pressures are far too high in general, as the legislation that forces manufacturers to post high pressures came from the old Firestone court case.

Yep, you got it!

APMX101 · 10-25-2023, 01:42 AM

Have the same issue here. Just changed tires to winters a week ago.

10-20-2023, 12:53 PM	#1
HerkHealer Lieutenant Colonel 1718 Rep 1,639 Posts Drives: G30/M550 Join Date: Aug 2021 Location: Nashua NH iTrader: (0)	Front tire pressure 50 PSI ? Took her out for a nice stroll this morning, and got the low tire pressure warning. Checked pressure and it was 46 PSI, which always has been recommended previously. However, now its saying recommended pressure is 50 PSI ??? Went into settings and reset everything to Summer Tire, 20" wheel and speed above 100 mph. Still saying recommended pressure is 50 PSI. First time i've seen this. Previously it was always recommended to 46 PSI. Anyone have a fix for this ? __________________ 2020 M550 / Dark Graphite / Napa Saddle Brown / DHP Pkg / Exec Pkg / Luxury Pkg / Parking Asst Pkg
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10-20-2023, 01:04 PM	#2
Mach550 Captain 472 Rep 888 Posts Drives: 2019 M550i Join Date: Aug 2018 Location: Tampa Bay iTrader: (0) Garage List 2019 BMW M550i [8.00]	reset tire settings and let it relearn pressures? __________________ M550i Build
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10-20-2023, 01:37 PM	#4
Joe-BMW33 Major General 7338 Rep 6,749 Posts Drives: '18 M550i\|'21 X5\|'03 540i Join Date: Apr 2021 Location: Boston iTrader: (1) Garage List 2013 VW Tiguan [0.00] 2015 Infiniti QX60 [0.00] 2021 BMW X5 [0.00] 2003 BMW 540i [0.00] 2018 BMW M550 [10.00]	That is strange. My tire pressure recommended settings is 41 front and 44 rear. 46 up front? Aren't we running the same setup? Michelin Summer? __________________ 2018 M550ix\|Carbon Black\|Dinan Modifications\|2003 540i\|Jet Black\|M-Sport\|2021 X5 Mineral White Prior BMW's: 1987 325e\|1993 740i\|1998 740il\|2001 530i\|2002 745li\|2007 750li\|2006 750li\|2001 530i\|2012 535xi\|
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10-20-2023, 02:05 PM	#5
Chappers 71 Major General 5485 Rep 5,422 Posts Drives: Beige G31 40ix m sport Join Date: Feb 2016 Location: Kent, The Garden of England iTrader: (0) Garage List 2018 G31 xdrive 40i ... [4.00] 2006 E92 335i SE [9.50]	Those pressures are pretty high, must be the difference between 19’s & 20” the G31 runs @ 2.4 BAR (34.8psi) __________________ G31 40ix M Sport E92 335i. E36 328is coupe E39 540i V8 6SP manual E34 3.6 M5. E34 525i sport. VW Jetta Mk2 GTI 16v. 1679cc 1967 resto-cal beetle
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10-20-2023, 09:59 PM	#10
LogicalApex Colonel 2026 Rep 2,946 Posts Drives: 2020 BMW 530xe Join Date: Jul 2019 Location: Farmington, NY iTrader: (0) Garage List 2020 BMW 530xe [0.00]	Was it parked on a hot street or checked after driving? The recommended pressure reads tire temperatures to give you an accurate recommendation. Normal recommendations are on a “cold” tire.
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10-21-2023, 06:12 AM	#11
BMW012 Major 1008 Rep 1,176 Posts Drives: 2023 M550i CBM/Ivory Join Date: Nov 2021 Location: NJ iTrader: (0) Garage List 2025 X6 BG/Silverstone [0.00] 2023 M550i CBM/Ivory [0.00]	on my 23 m550i the recommendations changes around as well. can see it change on the mybmw app. i think it takes into consideration the last drive and outside temp?
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10-21-2023, 07:54 AM	#13
Chappers 71 Major General 5485 Rep 5,422 Posts Drives: Beige G31 40ix m sport Join Date: Feb 2016 Location: Kent, The Garden of England iTrader: (0) Garage List 2018 G31 xdrive 40i ... [4.00] 2006 E92 335i SE [9.50]	Recommended m550i tyre pressures for staggered 20” wheels copied & pasted below Recommended tire pressure for 2021 BMW M550i xDrive is 38 psi to 42 psi for front tires and 35 psi to 39 psi for rear tires. I though 46psi was rather high __________________ G31 40ix M Sport E92 335i. E36 328is coupe E39 540i V8 6SP manual E34 3.6 M5. E34 525i sport. VW Jetta Mk2 GTI 16v. 1679cc 1967 resto-cal beetle
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10-21-2023, 08:50 AM	#14
AP Major General 2783 Rep 5,095 Posts Drives: G30 M550 Join Date: Apr 2011 Location: UK iTrader: (0)	I think 46psi is the highest recommendation I’ve seen on my m550 with 20 inch tyres
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10-21-2023, 11:37 AM	#16
AP Major General 2783 Rep 5,095 Posts Drives: G30 M550 Join Date: Apr 2011 Location: UK iTrader: (0)	Yeh that does a bit too high
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10-25-2023, 01:42 AM	#19
APMX101 New Member 6 Rep 16 Posts Drives: 2023 M550i xDrive Sedan Join Date: Feb 2023 Location: Toronto, Ontario, Canada iTrader: (0) Garage List BMW M550i [0.00] 2023 BMW M550i [0.00]	Have the same issue here. Just changed tires to winters a week ago. Attached Images
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