TPM question

weingarm · 04-16-2019, 02:54 PM

I just got my base M5 April 5th. I have a question about the Tire pressure monitor.

It keeps warning me that tire pressure is low even though all tires are at or above 32-33psi which is the recommended pressure on the door frame sticker and as listed in the owners manual. I have it set for the correct size rear 20 inch summer tires for travel <100mph. The iDrive displays recommends the pressure be 42 psi or higher!

Why? I can't seem to reset this. Any thoughts? See pictures.

x5man · 04-16-2019, 03:26 PM

I had the same problem. Tried changing different settings but the light kept coming up. When I dropped a car off for 1000 mile service, they fixed it.

Simon H · 04-16-2019, 03:48 PM

Are you setting the pressures when the tyres are cold ?.

Pimpsy · 04-16-2019, 04:06 PM

Dealership set my tire pressure to 42psi to resolve...

MysticBlue · 04-16-2019, 07:55 PM

32-30 is the normal pressure that they warn you they are low. Pressure should be higher.

dardeca · 04-16-2019, 08:06 PM

Quote:

Originally Posted by MysticBlue

32-30 is the normal pressure that they warn you they are low. Pressure should be higher.

+1

limeypride · 04-16-2019, 09:20 PM

Quote:

Originally Posted by weingarm

I just got my base M5 April 5th. I have a question about the Tire pressure monitor.

It keeps warning me that tire pressure is low even though all tires are at or above 32-33psi which is the recommended pressure on the door frame sticker and as listed in the owners manual. I have it set for the correct size rear 20 inch summer tires for travel <100mph. The iDrive displays recommends the pressure be 42 psi or higher!

Why? I can't seem to reset this. Any thoughts? See pictures.

The recommendations now take heat into account. First thing in the morning here in WA at say 49F ambient, the car will suggest 36psi front and rear. As the temperature increases, it changes accordingly. I try to get it with 1 or 2 psi of the recommendation.

At 60F ambient (90F+ in the tire), it's suggesting 38psi front and 39psi rear.

Important note that just occurred to me: I have custom tires on standard Comp wheels and configured the car as such--I'm running Michelin Pilot SuperSports 295/30/20 rears and 285/35/20.

weingarm · 04-16-2019, 10:46 PM

Quote:

Originally Posted by Simon H

Are you setting the pressures when the tyres are cold ?.

Quote:

Originally Posted by Simon H

Are you setting the pressures when the tyres are cold ?.

Yes, these are the cold tire pressures on my iDrive (32-33psi). Sounds like the consensus is the cold pressure in the tires should be set to the recommend iDrive pressures - I guess around 42 psi even though that seems pretty high to me (and higher than the door frame sticker and owners manual suggest).

NYG · 04-16-2019, 10:57 PM

Quote:

Originally Posted by Pimpsy

Dealership set my tire pressure to 42psi to resolve...

Yep, sounds like a BMW dealership.

dalixz25 · 04-16-2019, 11:52 PM

After you adjust the tire pressures, confirm the tire settings and you'll want to allow the TPM to reset itself before the notification disappears.

Simon H · 04-17-2019, 02:45 AM

Quote:

Originally Posted by weingarm

Yes, these are the cold tire pressures on my iDrive (32-33psi). Sounds like the consensus is the cold pressure in the tires should be set to the recommend iDrive pressures - I guess around 42 psi even though that seems pretty high to me (and higher than the door frame sticker and owners manual suggest).

This should be correct then. If you set them cold, then the heat and pressures should rise accordingly, and the TPM should be fine. Ive set my pressures to the quoted numbers on the door sticker, and they have been fine, no problems.

NASTY-M5 · 05-02-2019, 07:17 PM

Came here for the same thing. Switched from my winters to my summers and the warning light won't go out. Keeps asking for 45psi. Door sticker and tires say 32.

limeypride · 05-02-2019, 07:22 PM

Quote:

Originally Posted by NASTY-M5

Came here for the same thing. Switched from my winters to my summers and the warning light won't go out. Keeps asking for 45psi. Door sticker and tires say 32.

Have you told it what tires you're running--there's a setting in the same screen you view the tire temp/pressure.

NASTY-M5 · 05-02-2019, 07:23 PM

Quote:

Originally Posted by limeypride

Quote:

Originally Posted by NASTY-M5

Came here for the same thing. Switched from my winters to my summers and the warning light won't go out. Keeps asking for 45psi. Door sticker and tires say 32.

Have you told it what tires you're running--there's a setting in the same screen you view the tire temp/pressure.

Yes. I might try the "other tire" option tomorrow.

limeypride · 05-02-2019, 07:32 PM

Quote:

Originally Posted by NASTY-M5

Yes. I might try the "other tire" option tomorrow.

Here's what mine is set to actually running different tires than what I've selected (I have MPSS 295R and 285F) but this was the closest.

PS: I love that your car is a typo. Hahahaha.

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CanadianF90M5 · 05-02-2019, 07:40 PM

I just changed my idrive to "other tire" option which solved the problem.

devondragon · 05-03-2019, 10:12 AM

Is anyone running the 100+ MPH pressures (44/46? or whatever)? How's the ride? My F13 M6 had higher pressures for 100+ but if I remember right the jump wasn't as big. While I"m not going 100+ all the time, I've been known to venture up there on occasion and I'm thinking it might be nice to have the added safety of the recommended higher pressures. Does it make normal DD driving overly firm as far as bump transmission?

limeypride · 05-03-2019, 12:02 PM

Quote:

Originally Posted by devondragon

Is anyone running the 100+ MPH pressures (44/46? or whatever)? How's the ride? My F13 M6 had higher pressures for 100+ but if I remember right the jump wasn't as big. While I"m not going 100+ all the time, I've been known to venture up there on occasion and I'm thinking it might be nice to have the added safety of the recommended higher pressures. Does it make normal DD driving overly firm as far as bump transmission?

Man, the recommendations seem to vary wildly from car to car. You can see the recommendations I'm getting in my earlier post and I'm set for >100mph. It only gets into the low 40s as the temperature really gets up there.

//EDIT: actually, I didn't post a pic of the recommendations. It starts at 37psi I believe in 50F ambient.

04-16-2019, 02:54 PM	#1
weingarm Captain 857 Rep 702 Posts Drives: M3 Join Date: Sep 2007 Location: NY iTrader: (0)	TPM question I just got my base M5 April 5th. I have a question about the Tire pressure monitor. It keeps warning me that tire pressure is low even though all tires are at or above 32-33psi which is the recommended pressure on the door frame sticker and as listed in the owners manual. I have it set for the correct size rear 20 inch summer tires for travel <100mph. The iDrive displays recommends the pressure be 42 psi or higher! Why? I can't seem to reset this. Any thoughts? See pictures. Attached Images __________________ 2023 M3: Isle of Man Green 2021 X7 40i: Phytonic Blue
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04-16-2019, 03:26 PM	#2
x5man Private First Class 81 Rep 100 Posts Drives: 2024 M8 Gran Coupe Join Date: Aug 2015 Location: Boston, ma iTrader: (0)	I had the same problem. Tried changing different settings but the light kept coming up. When I dropped a car off for 1000 mile service, they fixed it.
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04-16-2019, 03:48 PM	#3
Simon H Major 876 Rep 1,319 Posts Drives: M5 Competition Join Date: Mar 2010 Location: UK iTrader: (0)	Are you setting the pressures when the tyres are cold ?.
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04-16-2019, 04:06 PM	#4
Pimpsy Captain 420 Rep 862 Posts Drives: 2019 M5C Join Date: Jan 2012 Location: NJ iTrader: (0)	Dealership set my tire pressure to 42psi to resolve... __________________ Retired 2016 BMW 550i xDrive MSport \| 2013 BMW 550i xDrive MSport \| 2012 BMW 535i xDrive \| 1988 BMW 325ic \| 1984 BMW 318i
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04-16-2019, 07:55 PM	#5
MysticBlue Lieutenant Colonel 369 Rep 1,887 Posts Drives: '20 M5C, '09 M3 DCT Coupe Join Date: Apr 2008 Location: Eastern Oregon... They call 'em rigs here iTrader: (0)	32-30 is the normal pressure that they warn you they are low. Pressure should be higher. __________________ M5C 20% tint, Xpel full front, partial sides and rear. Spacers, 15mm front, 12mm rear. Turner Motorsport Oil Cooler Guard. M3: Active Autowerke filter, Dinan underdrive pulley, Dinan full exhaust and software, 3.45 Differential, Springs, Brakes, Dinan/HRE wheels, 275/30-19 w/10mm spacer, 295/30-19 w/3mm spacer, painted front reflectors, 30% tint, Escort 8500i & Lidar Jammer, LUX H8 V5 halos, Euro rear foglights, 3M ClearBra.
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04-16-2019, 11:52 PM	#10
dalixz25 Private First Class 42 Rep 114 Posts Drives: 991.2 GT3 RS, Tesla M3P Join Date: Feb 2019 Location: SF Bay Area iTrader: (0)	After you adjust the tire pressures, confirm the tire settings and you'll want to allow the TPM to reset itself before the notification disappears.
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05-02-2019, 07:17 PM	#12
NASTY-M5 Second Lieutenant 46 Rep 217 Posts Drives: 2019 M% Competition Join Date: Aug 2018 Location: Halifax, NS, Canada iTrader: (0)	Came here for the same thing. Switched from my winters to my summers and the warning light won't go out. Keeps asking for 45psi. Door sticker and tires say 32. __________________ BMW newbie, please be kind and patient 2019 M5 Competition.
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05-02-2019, 07:40 PM	#16
CanadianF90M5 Second Lieutenant 125 Rep 258 Posts Drives: 2019 BMW F90 M5 Join Date: Mar 2019 Location: Edmonton iTrader: (0)	I just changed my idrive to "other tire" option which solved the problem. __________________ Previous: 2005 BMW E60 545
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05-03-2019, 10:12 AM	#17
devondragon Lieutenant 153 Rep 427 Posts Drives: 2019 M5 Competition Join Date: Oct 2011 Location: Boulder, CO iTrader: (0) Garage List 2014 BMW M6 Coupe [8.50]	Is anyone running the 100+ MPH pressures (44/46? or whatever)? How's the ride? My F13 M6 had higher pressures for 100+ but if I remember right the jump wasn't as big. While I"m not going 100+ all the time, I've been known to venture up there on occasion and I'm thinking it might be nice to have the added safety of the recommended higher pressures. Does it make normal DD driving overly firm as far as bump transmission?
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