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TPMS batteries expiring yet ?
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06-17-2013, 02:02 PM | #1 |
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TPMS batteries expiring yet ?
Read an article stating the typical life of a tire pressure monitoring system battery is 6 to 10 years. Each tire has a battery to power the transmitter to feed info to the computer about tire pressure. Has anyone been told they had to buy a new sensor/battery as they are one piece. What year was the car when you had to replace it? Wondering how long the actual real world life is.
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06-17-2013, 02:08 PM | #2 |
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I didn't even realize they are battery powered. My '08 model year was manufactured 12/07 and they are still functioning properly. Does a warning light come on when they go out?
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06-17-2013, 02:23 PM | #3 |
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You should get a TPMS failure of some sort, the problem is, you'll need to unmount each tire to replace the battery and remount, so on top of the new tpms cost ~$200, it'll be an extra $100 to mount/balance 4 tires.
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06-17-2013, 03:35 PM | #5 |
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The batteries aren't always powering the TPMS. They're only "on" when the wheels are rotating (that's why the car requires you to drive for a while when you do a TPMS reset). I'd just replace as they go bad. I'd guess it's a matter of time and mileage. I don't know if the batteries themselves are replaceable as the TPM sensors are potted / epoxied.
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06-17-2013, 03:49 PM | #6 |
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My tires/wheels get destroyed so often that this has never been a problem for me.
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06-17-2013, 03:59 PM | #7 | |
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06-17-2013, 08:20 PM | #9 |
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Interesting, I have s 2007 and will be due for 4 new tires'first time at 47k miles.
Maybe dump all 4 sensors at the same time while tires off the rim. Hate to do it, if it ain't broke don't fix it. But if other owners are only getting 6 years out of the sensors I guess it makes sense. |
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06-17-2013, 09:23 PM | #10 | |
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06-17-2013, 10:48 PM | #11 |
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Are u guys crazy? Any tire shop will tell you that anytime you remove the tire from the rim (of a tpms equiped rim) you are suppose to put on a new valve kit for about $5 or so (That will have a new battery).
All tires are considered to be useless 5 years from the date they were first mounted (which is why tire warranties cap out at 5 years), regardless of miles driven or tread life remaining. Also, you should never drive on RFT tires without a working TPMS, because u will never know that a RFT tire is damaged or flat until it falls apart. |
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06-17-2013, 11:14 PM | #12 | |
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06-17-2013, 11:21 PM | #13 |
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I didnt know that it has a battery on it,
I wonder if the battery life would decrease if you have the TPMS coded on.
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06-18-2013, 10:31 AM | #14 |
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I seriously doubt a new bmw valve stem with a built in battery is about $5 ?
Can anyone out there confirm this? I heard part and labor to replace the TPMS in each wheel is about $80 ? with programming. |
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06-18-2013, 10:47 AM | #15 |
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Replacing the battery is more expensive than replacing the whole TPMS piece. Each TPMS is ~$50 from Tirerack and other vendors. If one goes out you'll get an alert on your dash. If that happens get a new TPMS (or 4 since they'll all probably be going out soon) and have a tire shop unmount the tire, put in the new TPMS and remount the tire.
If someone can find a new TPMS for $5 with battery included people have been getting ripped off for years across all different makes and models.
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08-01-2013, 05:58 PM | #16 |
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Anyway to bypass the tpms system?...
Wondering if anyone found a way to bypass it so the light goes out on the dash?? I want to go back to old school...dont need a light to tell me my tires are low...
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08-01-2013, 10:01 PM | #17 |
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This is completely incorrect. All the 'TPMS Kit' contains is a new valve stem and seals. It is suggested to be replaced because the sensor has to be removed in most cases to remove the tire, and the old one won't necessarily seal properly again. It definitely does not include a battery.
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08-01-2013, 10:21 PM | #18 | |
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08-02-2013, 01:07 PM | #19 | |
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08-02-2013, 01:44 PM | #20 |
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You would have to replace the entire sensor. The unit is epoxy sealed. Make sure that it is indeed the sensor before you change them out. Some shops have readers that can read battery level. Unless they are completely unresponsive to a normal reader then they need to be replaced anyway
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08-02-2013, 01:50 PM | #21 | ||
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08-02-2013, 07:02 PM | #22 |
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It would be neat if these things recharge like those watch batteries that recharge while they are moving so even a low mileage car will start working once the wheels start spinning and high mileage cars will just never run down
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