TMPS on 2007 E60
07-09-2007, 04:34 AM
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Originally Posted by MattAu' post='445125' date='Jul 9 2007, 07:27 AM
When did BMW start using sensors in the wheels as opposed to comparing the speed of the spinning of the wheels in the same axle? I have a 2004 545i. Does it have sensors in the wheel or not?
07-09-2007, 04:43 AM
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Originally Posted by Rudy' post='445132' date='Jul 9 2007, 01:34 PM
You don't have individual sensors on your 2004. The sensors were used starting around 3/2006 production...
ABC
07-09-2007, 05:15 AM
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Originally Posted by aybeesea' post='445135' date='Jul 9 2007, 08:43 AM
Worldwide?
ABC
ABC
EDIT: I double checked a bit and I did find a reference to US only cars being updated from the "1st generation" system (called 'RPA') to the "2nd generation" system (called 'RDC').
Are you confirming that EU cars (and others) don't have the new system?
07-09-2007, 06:10 AM
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Originally Posted by Rudy' post='445138' date='Jul 9 2007, 02:15 PM
Are you confirming that EU cars...don't have the new system?
I thought that introduction of TPMS in USA was in response to (yet some more) legislation.
ABC
07-09-2007, 06:33 AM
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Originally Posted by aybeesea' post='445145' date='Jul 9 2007, 10:10 AM
I have no evidence of TPMS on MY e60 (but I can't extrapolate that.
I thought that introduction of TPMS in USA was in response to (yet some more) legislation.
ABC
I thought that introduction of TPMS in USA was in response to (yet some more) legislation.
ABC
07-09-2007, 06:37 AM
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Originally Posted by Rudy' post='445156' date='Jul 9 2007, 03:33 PM
I think you're right about the US laws but I assumed that BMW would allow the technology to trickle down to other markets to keep things simple, etc. I didn't realize you folks don't have the newer system...
Now that there's been a price hike with LCI, maybe sense has prevailed and a unified manufacturing proces now exists.
We wait to be advised by some knowledgeable person.
ABC
07-09-2007, 09:05 AM
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Just to add some good comments here.
The other day, my sensor light came on in my right rear wheel.
All other wheels were at 35psi. This right rear wheel was at 30psi. There was no leak. It was just a mistake made by the wheel installer.
Over time, that wheel would have worn strangly. Instead, I was notified that there was a problem, and the problem was fixed with one quick stop at a gas station.
Now, imagine that you have a slow leak (e.g., embedded nail). It may take quite a while to discover the problem (not with the TPMs), and it is much better to discover the problem at 30mph rather than 90mph.
Best to all.
The other day, my sensor light came on in my right rear wheel.
All other wheels were at 35psi. This right rear wheel was at 30psi. There was no leak. It was just a mistake made by the wheel installer.
Over time, that wheel would have worn strangly. Instead, I was notified that there was a problem, and the problem was fixed with one quick stop at a gas station.
Now, imagine that you have a slow leak (e.g., embedded nail). It may take quite a while to discover the problem (not with the TPMs), and it is much better to discover the problem at 30mph rather than 90mph.
Best to all.
07-09-2007, 09:17 AM
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Originally Posted by monacobmw' post='445207' date='Jul 9 2007, 06:05 PM
It may take quite a while to discover the problem (not with the TPMs)
I wonder what the tolerances are in theis older technique?
ABC
07-09-2007, 09:41 AM
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Originally Posted by aybeesea' post='445214' date='Jul 9 2007, 01:17 PM
Is this a vote of no confidence in the "reducing rolling radius"/"increasing wheel revs" ABS sensor method?
I wonder what the tolerances are in theis older technique?
ABC
I wonder what the tolerances are in theis older technique?
ABC
07-09-2007, 09:48 AM
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My Ride: 2004 545i Silver Grey Premium Package, Sport Package, Dynamic Driving Package
Since I, as confirmed above, have the older technology - "reducing rolling radius"/"increasing wheel revs" ABS sensor method, I am also interested in knowing how effective it is.
In my last car, a 2005 Infiniti G35 Coupe, it has the newer technology - sensor in each of the wheels, and it was very effective. I had a embedded nail in one of my tires and it was detected right away. It was a slow leak too. I seems to recall the sensors on the Infiniti were setup to alert when pressure drops below a certain psi.
In my last car, a 2005 Infiniti G35 Coupe, it has the newer technology - sensor in each of the wheels, and it was very effective. I had a embedded nail in one of my tires and it was detected right away. It was a slow leak too. I seems to recall the sensors on the Infiniti were setup to alert when pressure drops below a certain psi.