How does the car monitor the tyre pressure?

NeoCortex · 09-26-2013, 12:29 PM

I haven't received my car yet, but i'm searching for winter wheels in the meantime. I'm wondering if the tyre pressure monitoring defines which rims can be used? It might be a stupid question but I can't really understand how the car can see the pressure without having some kind of probe in the wheels?

is there anything special thing I need to look for when selecting wheels/tyres?

SonicEndeavor · 09-26-2013, 12:52 PM

The TPMS sensor is inside the tire attached to the valve stem and transmits the tire pressure wirelessly to the dashboard electronics.

NeoCortex · 09-26-2013, 01:24 PM

Hello Sonic,

Thank you for the explanation. I just read up on the TPMS system and I'm a bit curious about how to manage two sets of complete summer/winter wheels if the sensor has to be swapped for each active set of wheels. How do you guys manage that - two sets of sensors so we don't have to pull off the tires for each change? :S

Boulder Bill · 09-26-2013, 01:44 PM

Two sets. More $, but much easier.

Gerry@bavarianx · 09-26-2013, 03:50 PM

You will save some time too by having a set of sensors in both of your wheel sets because you save yourself a trip to the tire shop to have the sensors swapped out from one set of wheels to the other.

raleedy · 09-26-2013, 07:43 PM

I'd go a step farther: if you're not going to have a second set of sensors, you can omit the separate winter wheels (unless you need or want a different size) -- you're going to have to mount and dismount tires twice a year anyhow.

NeoCortex · 09-27-2013, 05:40 AM

Quote:

Originally Posted by raleedy

I'd go a step farther: if you're not going to have a second set of sensors, you can omit the separate winter wheels (unless you need or want a different size) -- you're going to have to mount and dismount tires twice a year anyhow.

thank you for the input. I'm not totally sure what you're suggesting.

I would like the easiest setup. So if that's having two complete sets of wheels with sensors installed then I would prefer that. IF that means I can just swap the wheels in my garage instead of having to go to the shop twice per year? If the tires aren't removed then re-balancing shouldn't be necessary right?

09-26-2013, 12:29 PM	#1
NeoCortex Private 13 Rep 63 Posts Drives: 530xD LCI Join Date: Jul 2013 Location: Denmark iTrader: (0)	How does the car monitor the tyre pressure? I haven't received my car yet, but i'm searching for winter wheels in the meantime. I'm wondering if the tyre pressure monitoring defines which rims can be used? It might be a stupid question but I can't really understand how the car can see the pressure without having some kind of probe in the wheels? is there anything special thing I need to look for when selecting wheels/tyres?
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09-26-2013, 12:52 PM	#2
SonicEndeavor Lieutenant 48 Rep 494 Posts Drives: 2014 535i MSport Join Date: Jun 2013 Location: California iTrader: (0)	The TPMS sensor is inside the tire attached to the valve stem and transmits the tire pressure wirelessly to the dashboard electronics.
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09-26-2013, 01:24 PM	#3
NeoCortex Private 13 Rep 63 Posts Drives: 530xD LCI Join Date: Jul 2013 Location: Denmark iTrader: (0)	Hello Sonic, Thank you for the explanation. I just read up on the TPMS system and I'm a bit curious about how to manage two sets of complete summer/winter wheels if the sensor has to be swapped for each active set of wheels. How do you guys manage that - two sets of sensors so we don't have to pull off the tires for each change? :S Last edited by NeoCortex; 09-26-2013 at 01:31 PM..
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09-26-2013, 01:44 PM	#4
Boulder Bill First Lieutenant 61 Rep 371 Posts Drives: 2018 Porsche Cayman GTS Join Date: Aug 2012 Location: Colorado iTrader: (0)	Two sets. More $, but much easier. __________________ 2013 F10 550i \| 6 Speed Manual \| M Sport Package \| Carbon Black \| Oyster & Black Nappa \| Dynamic Handling w/Dynamic Damper Control \| Executive Package (Comfort Access - Soft Close - HUD) \| B&O Sound \| Luxury Seating & Heated Seats (retired: 2002 E39 540i \| 6 Speed Manual)
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09-26-2013, 03:50 PM	#5
Gerry@bavarianx Banned 140 Rep 1,707 Posts Drives: BMW E30 Join Date: Jul 2007 Location: Yorba Linda, CA iTrader: (20)	You will save some time too by having a set of sensors in both of your wheel sets because you save yourself a trip to the tire shop to have the sensors swapped out from one set of wheels to the other.
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09-26-2013, 07:43 PM	#6
raleedy Colonel 160 Rep 2,248 Posts Drives: 2016 228i 6-speed Join Date: Jul 2005 Location: Portland, Oregon iTrader: (0)	I'd go a step farther: if you're not going to have a second set of sensors, you can omit the separate winter wheels (unless you need or want a different size) -- you're going to have to mount and dismount tires twice a year anyhow.
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