Replacing run flats

Darien335is · 08-11-2015, 08:27 AM

I'm replacing the OEM run flats on my 2011 335is with a set of 19" Pilot Sports. As they need to be inflated to a lower PSI than the OEM run flats, anybody know how to update the setting in the car for the new recommended (non-run flat) inflation?

blackhawkk22 · 08-11-2015, 08:34 AM

Use iDrive to go to Vehicle info, then TPMS and calibrate/Reset it. Your car will learn the new PSI and let you know the deviation from that baseline you just set with your new tires

Wilt · 08-11-2015, 09:40 AM

Or without iDrive simply start engine, then

click up/down on the switch on the turn signal stalk until you see Tire symbol and 'Reset' below it
push in on the switch at the end of the turn signal stalk
push in and hold that switch for 5 sec. until you see 'Reset (checked)'
start driving to actually cause TPMS to learn current pressures in tires

floydarogers · 08-11-2015, 09:48 AM

Quote:

Originally Posted by Darien335is

I'm replacing the OEM run flats on my 2011 335is with a set of 19" Pilot Sports. As they need to be inflated to a lower PSI than the OEM run flats, anybody know how to update the setting in the car for the new recommended (non-run flat) inflation?

Have you tried reading the manual to find out how to reset tpms?

04gto · 08-11-2015, 09:50 AM

Quote:

Originally Posted by floydarogers

Quote:

Originally Posted by Darien335is

I'm replacing the OEM run flats on my 2011 335is with a set of 19" Pilot Sports. As they need to be inflated to a lower PSI than the OEM run flats, anybody know how to update the setting in the car for the new recommended (non-run flat) inflation?

Have you tried reading the manual to find out how to reset tpms?

+1

Wilt · 08-11-2015, 10:00 AM

You guys expect someone to RTFM?! History has proven that so many owners never open the manual (witness the hundreds of thousands VCRs with flashing clock displays in the past!!!) that many products assume that an INTERESTED owner will go online to download the manual, and you are lucky the product manufacturer includes a printed Quick Start sheet! (what I had to do with my new smartphone just this month) And maybe the car was purchased used, and the earlier owner never included the Owner documentation that came with the car.
No, easier to ask on the web than to download a manual and read it.

fazman · 08-11-2015, 10:00 AM

Quote:

Originally Posted by Darien335is

I'm replacing the OEM run flats on my 2011 335is with a set of 19" Pilot Sports. As they need to be inflated to a lower PSI than the OEM run flats, anybody know how to update the setting in the car for the new recommended (non-run flat) inflation?

Why would you run less air on a go flat tire (as opposed to the RFT)? You should use the recommended PSI that is in the door jam regardless of if it a RFT or non RFT.

If anything I would run more air in a go flat tire because it doesn't have the added support of a stronger side wall to support the vehicle as designed. Just don't put in over 39 psi on a newly mounted tire because the beads need to seal properly... after a week or so you can run 40 or more (but not greater than what the max is written on the side wall of the tire).

on my 18's i like to run 36 front and 40 rear with go flat tires

Darien335is · 08-11-2015, 10:24 AM

Indeed, it's easier to ask a message board with fellow enthusiasts than it is to head out to my car in the rain and dig out the owner's manual.

Where's the sense of community?

PTinVT · 08-11-2015, 10:35 AM

TPMS doesn't care whether you're running RFT or not, and I don't think it cares what the desired PSI is - it only cares about what the current PSIs are when you RESET the system, and then it lets you know when it deviates from that. I imagine people run different PSI front/back and don't have to dial that into the computer?

PTinVT · 08-11-2015, 10:36 AM

Oh, and you can find the manual online from BMW with your VIN. I don't recall that being too difficult

jt335i · 08-11-2015, 10:48 AM

Quote:

Originally Posted by Darien335is

Indeed, it's easier to ask a message board with fellow enthusiasts than it is to head out to my car in the rain and dig out the owner's manual.

Where's the sense of community?

Most topics like this, or similar discussions, are on this site which you can easily search for without beating a dead horse.
Just an FYI.

fazman · 08-11-2015, 03:29 PM

Quote:

Originally Posted by PTinVT

TPMS doesn't care whether you're running RFT or not, and I don't think it cares what the desired PSI is - it only cares about what the current PSIs are when you RESET the system, and then it lets you know when it deviates from that. I imagine people run different PSI front/back and don't have to dial that into the computer?

That's correct.

I believe the car only cares that:
1) Warn you if the PSI is below 29 PSI to say the tire is low on air
2) Warn you if the PSI change is a drop of greater than 10% since the car was shut off (last reading).

The TPMS will only send back 2 values
1) Battery percentage
2) Tire pressure in BAR's (https://en.wikipedia.org/wiki/Bar_%28unit%29)

Walkingtree87 · 08-11-2015, 04:20 PM

+1 for Wilt
not many people have time to read a manual when you can just ask online.

08-11-2015, 08:27 AM	#1
Darien335is Private 43 Rep 87 Posts Drives: 2011 BMW 335is Join Date: Apr 2013 Location: CT iTrader: (0)	Replacing run flats - how to reset TPMS in car I'm replacing the OEM run flats on my 2011 335is with a set of 19" Pilot Sports. As they need to be inflated to a lower PSI than the OEM run flats, anybody know how to update the setting in the car for the new recommended (non-run flat) inflation?
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08-11-2015, 08:34 AM	#2
blackhawkk22 They don't want you to drive a 335i - DJ Khaled 126 Rep 444 Posts Drives: 2010 AW 335i AT M-Sport Join Date: Dec 2014 Location: Chicago iTrader: (0)	Use iDrive to go to Vehicle info, then TPMS and calibrate/Reset it. Your car will learn the new PSI and let you know the deviation from that baseline you just set with your new tires
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08-11-2015, 09:40 AM	#3
Wilt Major 228 Rep 1,045 Posts Drives: 2011 328i Join Date: Mar 2015 Location: SF Bay area iTrader: (0)	Or without iDrive simply start engine, then click up/down on the switch on the turn signal stalk until you see Tire symbol and 'Reset' below it push in on the switch at the end of the turn signal stalk push in and hold that switch for 5 sec. until you see 'Reset (checked)' start driving to actually cause TPMS to learn current pressures in tires
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08-11-2015, 10:00 AM	#6
Wilt Major 228 Rep 1,045 Posts Drives: 2011 328i Join Date: Mar 2015 Location: SF Bay area iTrader: (0)	You guys expect someone to RTFM?! History has proven that so many owners never open the manual (witness the hundreds of thousands VCRs with flashing clock displays in the past!!!) that many products assume that an INTERESTED owner will go online to download the manual, and you are lucky the product manufacturer includes a printed Quick Start sheet! (what I had to do with my new smartphone just this month) And maybe the car was purchased used, and the earlier owner never included the Owner documentation that came with the car. No, easier to ask on the web than to download a manual and read it.
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08-11-2015, 10:24 AM	#8
Darien335is Private 43 Rep 87 Posts Drives: 2011 BMW 335is Join Date: Apr 2013 Location: CT iTrader: (0)	Indeed, it's easier to ask a message board with fellow enthusiasts than it is to head out to my car in the rain and dig out the owner's manual. Where's the sense of community?
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08-11-2015, 10:35 AM	#9
PTinVT armchair enthusiast 221 Rep 1,019 Posts Drives: 18 340xi, 02 325Cic, 93 850Ci Join Date: Feb 2009 Location: Burlington, VT iTrader: (3)	TPMS doesn't care whether you're running RFT or not, and I don't think it cares what the desired PSI is - it only cares about what the current PSIs are when you RESET the system, and then it lets you know when it deviates from that. I imagine people run different PSI front/back and don't have to dial that into the computer? __________________ '18 340i xDrive EB/Dakota, 6-speed manual, M-sport '02 325Cic vert AW/Montana leather, 5-speed manual, premium/removable hardtop '93 850Ci Oxford Green/Parchment, auto '71 Buick Riviera, 455 V8 land yacht
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08-11-2015, 10:36 AM	#10
PTinVT armchair enthusiast 221 Rep 1,019 Posts Drives: 18 340xi, 02 325Cic, 93 850Ci Join Date: Feb 2009 Location: Burlington, VT iTrader: (3)	Oh, and you can find the manual online from BMW with your VIN. I don't recall that being too difficult __________________ '18 340i xDrive EB/Dakota, 6-speed manual, M-sport '02 325Cic vert AW/Montana leather, 5-speed manual, premium/removable hardtop '93 850Ci Oxford Green/Parchment, auto '71 Buick Riviera, 455 V8 land yacht
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08-11-2015, 04:20 PM	#13
Walkingtree87 New Member 2 Rep 23 Posts Drives: 2008 BMW 328Xi Join Date: Oct 2014 Location: Boston,MA iTrader: (0)	+1 for Wilt not many people have time to read a manual when you can just ask online.
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