Tire Pressure Monitor Battery Replacement

[kyrano]

Can you just change the battery or do you have to purchase a complete new Tire Pressure Monitor ?

 

[Blue Sweeper]

BMW would want you to buy a complete new TPMS for loads of money, but there is a way to replace the battery if you are capable of removing and refitting the tyre yourself.

https://youtu.be/Mpjz0cDjnK4

 

[kyrano]

Thanks for the link here Blue Sweeper, I have read up on this before but it was interesting to see how it was done tho, could the this be disabled using a GS911

 

[Bendy toy]

A flat battery TPS shows nothing on the bike display. No warning triangle. I don't know if the dead battery causes TPS to lose its code so the 911 might be needed to reset the signal. Chances are it just works again.
£10 for tyre remove & refit. £15 if it's to be balanced.
Battery with tags is £5 on eBay electronics grade silicone £10 or less.
Job done for under £30. Plus 911 if it's needed.

 

[kyrano]

Hi Bendy, Thanks for the information here, my TPS's are both fine at the mo, I was just was trying to find out if I can get round it without buying complete new TPS's,

 

[JoeBiff]

What's the likely cause of a 1,0 - 1,5 Bar higher (than normal) reading ? On both wheels, simultaneously .....

 

[unibar]

Temperature sensor ok is it.... Some kind of adjustment is made, i don't understand it so still use a gauge once a week!!

Sent from my SM-G920F using Tapatalk

 

[AberdeenAngus]

What's the likely cause of a 1,0 - 1,5 Bar higher (than normal) reading ? On both wheels, simultaneously .....

Assuming you didn't inflate them both using a the same shite garage forecourt gauge.....

That sounds like the electronics has had a brain fart.
Try disconnecting your battery for 10 mins.
Its just a computer after all.

But I would double check the tyres themselves with a reliable gauge first.

 

[Bendy toy]

My TPS did some strange stuff just after I had the last set of tyres fitted. A suggestion was the TPS failing to send a clear signal - the batteries in mine are old.

I carry a tyre pressure gauge. TBH I need to carry a better quality gauge so I'd trust its readings.

 

[Steptoe]

Yes you can replace the batteries. No the TPS/moniters shouldn't need resetting.

 

[JoeBiff]

Cheers all for the input.

Temperature sensor is working AOK.
Don't use a garage forecourt gauge/inflated - so that's ruled out.
The erroneous reading on front and rear wheels occurred at the same time - so, if it was a duff battery in one wheel, I doubt it could affect the reading in the other ??

The pressures are running correctly according to two different gauges I have. It's the TPMS that seems dodgy.

I like the idea of disconnecting the battery, so I'll give that a shot. It's about time the bike had its battery disconnected.

 

[Bendy toy]

The TPS sensors have inbuilt temperature compensation. Presumably so the pressure reading remains constant even when you've done 100 miles on the M6.

Its likely the sensor can do strange things when its battery gets low.

 

[JoeBiff]

Its likely the sensor can do strange things when its battery gets low.

You're probably right. But it seems wierd that both batteries flatten exactly the same time, together.

And why don't the motorcycle batteries last as long as batteries in the car TPMS ?? Five years in one car, and never a squeak. BWM. Unbelievable.

 

[Bendy toy]

My bike is an 08. The original TPS were still working when I put the bike away tonight. One does sometimes vanish from the display so its battery must be getting weak, but the bike is 8 years old with nearly 60K on the clock.

 

[JoeBiff]

Disconnecting the battery fixed it.

And connecting up to the GS911 allows you to select either a PSI or a Bar read-out on the dash. Clever stuff...