Tire Pressure Monitors
11-29-2005, 04:55 AM
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Hi Friends:
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
11-29-2005, 05:03 AM
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I don't think the E60 has direct tire pressure monitors, yet. I recall reading that it will come (standard or option?) starting in March 2006.
I believe our current cars "monitor" tire inflation indirectly using the ABS sensors.
I believe our current cars "monitor" tire inflation indirectly using the ABS sensors.
11-29-2005, 05:06 AM
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Originally Posted by vnod' post='204689' date='Nov 29 2005, 01:55 PM
Hi Friends:
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
It uses ABS sensor data to monitor differences in wheel spinning speed. If wheels spin at different speed (faster) it is because one tire has less pressure than the other.
The only drawback is that is that if all wheels run flat you will not be alerted. But i can live with that
11-29-2005, 05:07 AM
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Originally Posted by tachyon' post='204693' date='Nov 29 2005, 09:03 AM
I don't think the E60 has direct tire pressure monitors, yet. I recall reading that it will come (standard or option?) starting in March 2006.
I believe our current cars "monitor" tire inflation indirectly using the ABS sensors.
I believe our current cars "monitor" tire inflation indirectly using the ABS sensors.
11-29-2005, 05:07 AM
#5
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The tire pressure monitors "monitor" the tires by detecting slight differentials in rotation, which would be characteristic of a change in circumference due to a slow or sudden loss of pressure in a tire as compared to the others. There aren't any sensors or detectors; it just senses rotational differences. Simple, but effective.
11-29-2005, 05:13 AM
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It uses ABS sensor data to monitor differences in wheel spinning speed. If wheels spin at different speed (faster) it is because one tire has less pressure than the other.
The only drawback is that is that if all wheels run flat you will not be alerted. But i can live with that
[/quote]Thank you BigGrey. Good explanation.
Originally Posted by das' post='204696' date='Nov 29 2005, 09:07 AM
The tire pressure monitors "monitor" the tires by detecting slight differentials in rotation, which would be characteristic of a change in circumference due to a slow or sudden loss of pressure in a tire as compared to the others. There aren't any sensors or detectors; it just senses rotational differences. Simple, but effective.
11-29-2005, 05:46 AM
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so will the monitor still work when I install non run flat tires?
11-29-2005, 05:49 AM
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11-29-2005, 05:54 AM
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Yes. I still carry on though.
Originally Posted by vnod' post='204689' date='Nov 29 2005, 01:55 PM
Hi Friends:
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
[/quote]
What does the "old chestnut returns" mean?
I thought I had heard everything. 
I see sort of: there were two similar posts. Where does the expression come from, and what exactly does it refer to?
11-29-2005, 06:15 AM
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Originally Posted by uny530xi' post='204711' date='Nov 29 2005, 02:46 PM
so will the monitor still work when I install non run flat tires?
Yes. I still carry on though.
Yup, but you'll ruin the tyre and possibly the rim!!!
Originally Posted by vnod' post='204689' date='Nov 29 2005, 01:55 PM
Hi Friends:
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
How do the 5-Series tire-pressure monitors work? I just realized that, having looked at my old wheels after they were removed and having looked at my new wheels before they were installed, I have no idea how the monitors work.
I thought I had heard everything. I see sort of: there were two similar posts. Where does the expression come from, and what exactly does it refer to?[/quote]
In this post, FTM, earlier today, I said 'This old chestnut'
When you asked again, thus 'The chestnut returns'!
For a description see here, it fits very well! OldChestnut!