Pressure monitor valves, battery lifespan?

[sgregory124]

Morning all,

Just wondering how long the batteries in the pressure monitoring valves last, if anyone knows?

In the last few days, the car has been reporting low pressure on one corner, which i've corrected, however, after checking the other wheels, some of the readings just don't tally up with what shows on my inflators gauge (out by 4-5 psi on one wheel in particular). I have the car booked in this morning for a puncture check, but i'm beginning to wonder if the valves are starting to report spurious values and are about to expire.

Any ideas?

Car is my C63S and thanks in advance for any advice.

Simon

 

[Spider10]

My w204 2012 still had the originals when I replaced the tyres before sale with no issue's

 

[sgregory124]

My w204 2012 still had the originals when I replaced the tyres before sale with no issue's

Good to know, in which case I hope this is just a puncture or my inflator is sh*te. Did worry about a cracked wheel too - which might be a possibility given the potholes where I live ....

 

[sgregory124]

Good news anyway, it was indeed just a puncture, so 24 quid later and i'm very happy with that outcome!

 

[Deleted member 126251]

My w204 2012 still had the originals when I replaced the tyres before sale with no issue's

I think they only become active when the wheels are rolling. I had 6 on my Landcruiser & OffRoad caravan rig and the batteries lasted to the lifetime I had them.