TPMS Sensors

bdn3d · 03-01-2012, 02:46 PM

Learned somthing new today... Had a flat tire today because I need new tires, needless to say I have new tires, and my new 19inch wheels will be here in 3 weeks. The tire was not repairable so I had to buy a used tire... so 70.00 later I'm all set.(timing could not be worse!!!

) But here is what I learned... this entire time I have been told by several people I needed new TPMS sensors or I could just use my old ones for my new wheels, but turns out I don't even have them... Apparently A few 2005 and 2006 BMW's did not have them. The system runs off of suspension and brake readings?

atleast thats what the tire guy said. Anyway heres my question, if I get new 19's will the car not read the new wheel correctly and cause the tire pressure light to stay on? If so what should be done then?

thanks in advance...

XMetal · 03-01-2012, 03:06 PM

If your car doesn't use sensors, then it's just relying on the ABS system to tell the difference in rotational speed between the different tires. It only knows if ONE of your tire is different from the rest, but cannot tell if all 4 tires are low.

In your case, just a "reset" of the system should be enough for the new wheels. Resetting the system should have it re-calibrate for the new wheels.

ZeD4Mr · 03-01-2012, 03:20 PM

tpms started in 2007+ if I'm not wrong

bdn3d · 03-01-2012, 04:19 PM

great thanks for the info..hopefully I will not run into any problems.

03-01-2012, 02:46 PM	#1
bdn3d Second Lieutenant 92 Rep 278 Posts Drives: Z4m Coupe/ Mini Cooper S Join Date: Apr 2011 Location: Orlando, Florida iTrader: (0)	TPMS Sensors Learned somthing new today... Had a flat tire today because I need new tires, needless to say I have new tires, and my new 19inch wheels will be here in 3 weeks. The tire was not repairable so I had to buy a used tire... so 70.00 later I'm all set.(timing could not be worse!!! ) But here is what I learned... this entire time I have been told by several people I needed new TPMS sensors or I could just use my old ones for my new wheels, but turns out I don't even have them... Apparently A few 2005 and 2006 BMW's did not have them. The system runs off of suspension and brake readings? atleast thats what the tire guy said. Anyway heres my question, if I get new 19's will the car not read the new wheel correctly and cause the tire pressure light to stay on? If so what should be done then? thanks in advance... __________________ Good things may come to those who wait, but only what's left by those who HUSTLE!" -George Washington
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03-01-2012, 03:06 PM	#2
XMetal Colonel 1133 Rep 2,866 Posts Drives: Anything Join Date: Apr 2010 Location: SoCal iTrader: (0) Garage List 2008 Z4M Coupe [10.00] 2018 Audi S3 [0.00] 2004 X5 [8.50]	If your car doesn't use sensors, then it's just relying on the ABS system to tell the difference in rotational speed between the different tires. It only knows if ONE of your tire is different from the rest, but cannot tell if all 4 tires are low. In your case, just a "reset" of the system should be enough for the new wheels. Resetting the system should have it re-calibrate for the new wheels.
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03-01-2012, 03:20 PM	#3
ZeD4Mr Lieutenant Colonel 501 Rep 1,543 Posts Drives: Skyer Z4MR Join Date: Dec 2009 Location: Vancouver, BC, Canada iTrader: (18)	tpms started in 2007+ if I'm not wrong
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03-01-2012, 04:19 PM	#4
bdn3d Second Lieutenant 92 Rep 278 Posts Drives: Z4m Coupe/ Mini Cooper S Join Date: Apr 2011 Location: Orlando, Florida iTrader: (0)	great thanks for the info..hopefully I will not run into any problems. __________________ Good things may come to those who wait, but only what's left by those who HUSTLE!" -George Washington
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