Hit a massive pothole and tire was leaking severely, but TIRE SENSOR did not activate

///Wald · 03-27-2011, 05:56 PM

Does anyone know why my dashboard did not show low pressure? I am not running the run flat tires, just high performance bf goodrich tires.

Thanks

chromisdesigns · 03-27-2011, 07:35 PM

You are not the first person to report problems with the sensor not reporting pressure loss. I know that doesn't help much...

remmib · 03-27-2011, 07:45 PM

Pretty sure your 06 325i doesn't have sensors (TPMS), just FTM.

///Wald · 03-27-2011, 08:18 PM

Quote:

Originally Posted by remmib

Pretty sure your 06 325i doesn't have sensors (TPMS), just FTM.

Ohh! Thanks for the heads up. It's weird because when I get new tires, it asks to reset the system.

The FTM didn't kick in even when my tire was completely flat and I was rolling to the side of the street.

Tzu · 03-28-2011, 06:19 PM

I had the same problem, asked the same question on the forums and didn't get a response. I only knew because the car was pulling severely to the left on the highway. I went about 40km on a flat tire.

I spoke to the BMW tech. They said that the system requires a certain number of iterations before the system alerts you, which is allowed to slowly calculate because of the slow release from RFT's. I called bullshit since the tire was COMPLETELY flat, I argued the system can't tell a catastrophic failure? What a shitty system. I guess thats why TPMS is a much better system, besides the weight.

I still don't quite believe it, but I don't have a better answer either.

ceb · 03-28-2011, 09:08 PM

Quote:

Originally Posted by chromisdesigns

You are not the first person to report problems with the sensor not reporting pressure loss. I know that doesn't help much...

Sure. Especially since he doesn't have sensors

This is the very reason that the TREAD act requires active sensors rather than the passive FTM that the OP has on his '06

chromisdesigns · 03-29-2011, 08:12 PM

Quote:

Originally Posted by ceb

Sure. Especially since he doesn't have sensors

This is the very reason that the TREAD act requires active sensors rather than the passive FTM that the OP has on his '06

oops -- missed the '06 part. Right you are! But there HAVE been reports about sensor-equipped cars not registering low pressure, as well.

03-27-2011, 05:56 PM	#1
///Wald Private First Class 10 Rep 133 Posts Drives: 06 325i Join Date: Dec 2009 Location: Cali iTrader: (3)	Hit a massive pothole and tire was leaking severely, but TIRE SENSOR did not activate Does anyone know why my dashboard did not show low pressure? I am not running the run flat tires, just high performance bf goodrich tires. Thanks
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03-27-2011, 07:35 PM	#2
chromisdesigns Lieutenant Colonel 47 Rep 1,753 Posts Drives: 2008 BMW 335i sedan Join Date: Jan 2010 Location: San Francisco iTrader: (0)	You are not the first person to report problems with the sensor not reporting pressure loss. I know that doesn't help much...
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03-27-2011, 07:45 PM	#3
remmib General 1596 Rep 29,218 Posts Drives: 2013 F10 520d M-Sport Join Date: Feb 2006 Location: Norway iTrader: (0)	Pretty sure your 06 325i doesn't have sensors (TPMS), just FTM. __________________ F10 520d M-Sport Alpine White \| HRE P43SC 20x9+20x11 \| Michelin PSS 255/35+295/30 \| KW V3 Coilover \| M5 Front Sway Bar + M550d Rear Sway Bar \| 3DDesign Front Lip \| BMW M Performance CF Spoiler \| BMW M Performance Diffuser \| BMW M Performance Black Grills \| BMW M Performance Pedals \|
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03-28-2011, 06:19 PM	#5
Tzu Lieutenant Colonel 31 Rep 1,551 Posts Drives: 335i Join Date: Jun 2010 Location: Toronto iTrader: (1)	I had the same problem, asked the same question on the forums and didn't get a response. I only knew because the car was pulling severely to the left on the highway. I went about 40km on a flat tire. I spoke to the BMW tech. They said that the system requires a certain number of iterations before the system alerts you, which is allowed to slowly calculate because of the slow release from RFT's. I called bullshit since the tire was COMPLETELY flat, I argued the system can't tell a catastrophic failure? What a shitty system. I guess thats why TPMS is a much better system, besides the weight. I still don't quite believe it, but I don't have a better answer either.
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