Tire pressure

dvu · 07-30-2021, 06:41 AM

Featured on BIMMERPOST.com

Hey guys. Question for those of you who have non run flat 21 inch tires. The sticker on the door jam reads 32 front and 38 rear. My dealer has my tires at 36 front and 40 rear and the vehicle status shows the tires to be in the green. Should I leave it there or lower to sticker specs? Thanks.

MystroX5 · 07-30-2021, 09:00 AM

Are your tires 21” Continental Cross Contact AS?

unfoundnemo · 07-30-2021, 09:08 AM

Quote:

Originally Posted by dvu

Hey guys. Question for those of you who have non run flat 21 inch tires. The sticker on the door jam reads 32 front and 38 rear. My dealer has my tires at 36 front and 40 rear and the vehicle status shows the tires to be in the green. Should I leave it there or lower to sticker specs? Thanks.

Is the recommendation in the vehicle status showing 36/40 as well? The TPMS in iD7 is pretty smart, and it will raise the recommended pressure according to the running temperature, it's pretty rare that I'll ever see the recommendation on screen equal to that of the cold pressure recommendation on the door jam.

Auricom · 07-30-2021, 10:05 AM

Understanding the difference between driver's door pillar tire pressure label, tire pressure table in physical Owner's Manual, TPMS and target pressures in iDrive.

Note, my write up was for G05 but G07 is identical in functionality:

https://g05.bimmerpost.com/forums/sh...38;postcount=3

dvu · 07-30-2021, 10:33 AM

Quote:

Originally Posted by unfoundnemo

Quote:

Originally Posted by dvu

Hey guys. Question for those of you who have non run flat 21 inch tires. The sticker on the door jam reads 32 front and 38 rear. My dealer has my tires at 36 front and 40 rear and the vehicle status shows the tires to be in the green. Should I leave it there or lower to sticker specs? Thanks.

Is the recommendation in the vehicle status showing 36/40 as well? The TPMS in iD7 is pretty smart, and it will raise the recommended pressure according to the running temperature, it's pretty rare that I'll ever see the recommendation on screen equal to that of the cold pressure recommendation on the door jam.

So my measured cold pressures are exact with the idrive measurements. The car came with Bridgestone alenza sport. Car only has 1700 miles on it. I guess I didn't realize the vehicle stays showed recommended pressure as well. I'll look tonight.

thenew3 · 07-30-2021, 08:41 PM

I have the same tires and run 35/40 ft/rear.

dvu · 07-30-2021, 11:17 PM

Quote:

Originally Posted by thenew3

I have the same tires and run 35/40 ft/rear.

Thanks

MystroX5 · 07-31-2021, 07:50 AM

Quote:

Originally Posted by thenew3

I have the same tires and run 35/40 ft/rear.

I have to decide what pressure to run as I use these as my mixed weather wheel/AS tire setup. I was currently running the lower pressure but had a feeling 35/40 might be more appropriate for the weight.

rich5741 · 07-31-2021, 10:16 AM

I run 38/40 on the standard Contiental 21 RFTs. I let the air out once to get to the Idrive specs, but the car felt a lot less comfortable in that configuration (oddly enough I felt bumps more acutely) so I ended up pumping the air back up.

07-30-2021, 06:41 AM	#1
dvu Private 12 Rep 90 Posts Drives: '21 X7 40i Join Date: May 2021 Location: Texas iTrader: (0)	Tire pressure Featured on BIMMERPOST.com Hey guys. Question for those of you who have non run flat 21 inch tires. The sticker on the door jam reads 32 front and 38 rear. My dealer has my tires at 36 front and 40 rear and the vehicle status shows the tires to be in the green. Should I leave it there or lower to sticker specs? Thanks.
	Appreciate 0 Tweet Quote

07-30-2021, 09:00 AM	#2
MystroX5 Major General 6290 Rep 5,324 Posts Drives: 2020 X7 M50i/ 911 Join Date: Dec 2018 Location: Central Pa. iTrader: (0)	Are your tires 21” Continental Cross Contact AS?
	Appreciate 0 Quote

07-30-2021, 10:05 AM	#4
Auricom Brigadier General 4362 Rep 4,246 Posts Drives: 2020 X5 xDrive40i M Sport Join Date: Jan 2012 Location: DMV iTrader: (0)	Understanding the difference between driver's door pillar tire pressure label, tire pressure table in physical Owner's Manual, TPMS and target pressures in iDrive. Note, my write up was for G05 but G07 is identical in functionality: https://g05.bimmerpost.com/forums/sh...38;postcount=3 __________________ Current BMWs - '20 X5 xDrive40i M Sport, '20 BMW M550i \| Past BMWs - '03 E39 540iT M Sport, '06 E53 4.8is, '11 E70 M Sport LCI
	Appreciate 0 Quote

07-30-2021, 08:41 PM	#6
thenew3 Lieutenant Colonel 639 Rep 1,588 Posts Drives: 2020 X7, 2016 X3, 2021 MME Join Date: Oct 2015 Location: Central coast CA iTrader: (0)	I have the same tires and run 35/40 ft/rear.
	Appreciate 2 dvu11.50 MystroX56289.50 Quote

07-31-2021, 10:16 AM	#9
rich5741 Second Lieutenant 72 Rep 268 Posts Drives: BMW X7 xDrive40i Join Date: Feb 2021 Location: New York, NY iTrader: (0)	I run 38/40 on the standard Contiental 21 RFTs. I let the air out once to get to the Idrive specs, but the car felt a lot less comfortable in that configuration (oddly enough I felt bumps more acutely) so I ended up pumping the air back up.
	Appreciate 0 Quote