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03-15-2006, 11:31 AM
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BMWNA Customer Relations informed me that all model 5 series produced in March will have the new Tire Pressure Monitor,(TPM),system that uses a direct method to monitor tire pressure instead of using wheel speed.
cheers
vern
cheers
vern
03-15-2006, 02:08 PM
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Thanks, Vern. Is monitoring pressure better than wheel speed? It would seem to be more complicated, if it requires a direct link to the inside of the tire, for instance. How is this supposed to work, and why is it better?
03-15-2006, 02:16 PM
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Originally Posted by sc02492' post='255355' date='Mar 15 2006, 03:08 PM
Thanks, Vern. Is monitoring pressure better than wheel speed? It would seem to be more complicated, if it requires a direct link to the inside of the tire, for instance. How is this supposed to work, and why is it better?
Just my 2 cents worth!
03-15-2006, 02:17 PM
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Originally Posted by vern' post='255266' date='Mar 15 2006, 08:31 PM
BMWNA Customer Relations informed me that all model 5 series produced in March will have the new Tire Pressure Monitor,(TPM),system that uses a direct method to monitor tire pressure instead of using wheel speed.
cheers
vern
cheers
vern
03-15-2006, 02:17 PM
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exactly why is better?
and if the new TPM has something attached to the wheel then more complicated=more failure senstive....
besides what is wrong with the current system? well only that it does not tell which exact wheel....
maybe it is just something new from BMW which will be cheaper to manufacture it is not always invention behind the updates
and if the new TPM has something attached to the wheel then more complicated=more failure senstive....
besides what is wrong with the current system? well only that it does not tell which exact wheel....
maybe it is just something new from BMW which will be cheaper to manufacture
it is not always invention behind the updates
03-15-2006, 03:19 PM
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It may be a legal issue. I do not know all of the details, but I belive there is a new law which requires a certain percentage of cars to have flat tire monitoring. It is my understanding that the BMW method on the current E60 does not qualify under the law. Thus the switch. Tire shops, for one, do not like the individual tire / stem monitors. Apparently, they break easily and then the owner and tire shop end up in a fight over whether the monitor was broken before or after the car was in the shop.
03-15-2006, 04:56 PM
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Cool its been reported here a while ago that as of march the E60 will have that now we kinda have confirmation... thanks.
It can be better or it can be worse... if its like the electronic dip stick and isnt accurate it'll be annoying to give inaccurate info. BUT for most people it'll be good. For a perfectionist like myself... unless the system is dead on accurate I'll be dissappointed. The system now is good for me. I check my tires all the time and its good in a sense that it will only bother me if theres really a problem.
It can be better or it can be worse... if its like the electronic dip stick and isnt accurate it'll be annoying to give inaccurate info. BUT for most people it'll be good. For a perfectionist like myself... unless the system is dead on accurate I'll be dissappointed. The system now is good for me. I check my tires all the time and its good in a sense that it will only bother me if theres really a problem.
03-16-2006, 06:26 AM
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Yes, you are wrong about the bed of nails theory. Adding new wheels and tires with equal pressure will set off the monitoring system. So your theory is out.
Runflats sound much louder when flat, also, you can tell that it's flat by looking at it.
Runflats sound much louder when flat, also, you can tell that it's flat by looking at it.
Originally Posted by jchuan8338' post='255358' date='Mar 15 2006, 06:16 PM
It's better because you will have individual monitoring of each tire. In the current system if your E60 ran over a bed of nails and all wheels are losing pressure at the same time, I don't believe that the system would sound a warning (although I have been known to be wrong). In addition, on the current system, the system warns of a low tire pressure but does not tell you which tire it is. If your E60 has run flats, you would need to gauge each one to determine which tire was low or flat.
Just my 2 cents worth!
Just my 2 cents worth!