Intermittent Rear TPM Sensor - BMW Luxury Touring Community
 
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post #1 of 7 Old Apr 22nd, 2018, 12:05 pm Thread Starter
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Question Intermittent Rear TPM Sensor

Every once in a while the rear TPM readout shows -- instead of a pressure indiction. Sometime its hours, sometimes it minutes before it goes back to displaying a pressure. I assume that the TPM monitor on the inside of the tire must has some type of battery allowing it to transmit. Is what I'm seeing an indication of the TPM battery going dead?

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post #2 of 7 Old Apr 22nd, 2018, 1:24 pm
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Re: Intermittent Rear TPM Sensor

The TPMS sender has a battery and it should last 6-7 years.
Mine lasted almost 9 years, but as it gets weak, it will show
nothing, or just horizontal lines, either front or rear. Unfortunately,
the batteries are not replaceable, and the senders cost a small fortune ...

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post #3 of 7 Old Apr 22nd, 2018, 4:51 pm
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Re: Intermittent Rear TPM Sensor

If you're handy, several videos on YouTube showing how to change out the battery. Personally, I'd try this first. The torque to re install is 9Nm. Check for leaks with soap bubbles. If you buy aftermarket units they have to have the serial number on the inside curve so you can link them to the bike computer via a GS-911. One of the aftermarket shops, beemerboneyard or Euromotoelectric had a price break on them. Be vary suspicious of any Asian units. No monitoring unit is install and use, all have to be synced to your bike.

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I change your tires $40, you buy them on the web.
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post #4 of 7 Old Apr 22nd, 2018, 5:28 pm
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Re: Intermittent Rear TPM Sensor

As beeck mentioned, here is the video:
https://video.search.yahoo.com/searc...8&action=click
I never tried it, and nobody I know bragged about. The problem with it is,
you will never know you did a good job until you go for a ride with it.
I will try it, but when will change tires, sometimes this summer. Will
post if successful or otherwise. If not, will have to wait for the next tire
change. My bike is a 2008 and the TPMS worked until late last year, so
about 9 years.

2008 RT Biarritz Blue
2007 Triumph Sprint ST(sold)
memories:
1986 Yamaha FJ 1200
1985 Yamaha FJ 1100
1983 Yamaha XJ 900
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post #5 of 7 Old Apr 22nd, 2018, 10:36 pm
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Re: Intermittent Rear TPM Sensor

I forgot about the hassle of tire changing or just removing to insert this thing. I wish you lived closer. I'd install it for you and test it here. I have a tire changer up in the shop that works really cheap. Just to pull the tire and install will cost you 50 to 100 bucks at the dealer. Fun part about the new bmw unit, the code number is on the inside portion of the device so you install it, can see nothing put the tire on, and install the wheel. Now you have to type in the code to the gs911, oh darn I did not write it down, it's in the wheel. And it is not the part number on the side of the unit. And to top it off, one guy on the ADV.com site installed some Asian ones, turns out the code was HEX decimal not a normal code the computer looks for. He figured this out and transposed it to base 10 numbers and all went well.
I put some more effort into it, here is a great deal on the real thing:
https://www.beemerboneyard.com/36237694420.html
Now you need a GS-911 to connect them to your computer on the bike or have a dealer sync them, remember my warning about where the correct sync number is.
(Change them both at the same time.)

Beech
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post #6 of 7 Old Mar 31st, 2019, 6:38 pm
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Re: Intermittent Rear TPM Sensor

I don't know where you guys shop but max BMW sells a pair of oem sensors for $243.
The Chinese knockoffs are crap.
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post #7 of 7 Old Apr 1st, 2019, 9:31 am
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Re: Intermittent Rear TPM Sensor

Quote:
Originally Posted by Teach View Post
I don't know where you guys shop but max BMW sells a pair of oem sensors for $243.
The Chinese knockoffs are crap.
Whats' your discount code? Mine came out to $449 for a pair.
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