Author Topic: Tyre Pressure Monitors (Read 4348 times)

Antois · « **Reply #40 on:** February 26, 2018, 02:59:11 pm »

Apparently when you remove the battery it loses its memory, hope not that is the case.

EssBee · « **Reply #41 on:** March 02, 2018, 09:11:47 am »

Ok, I give up.
Scoot was booked in for Monday morning.

Preceeding Friday, after slightly INFLATING the rear, on my way to work, NO warning, BUT, suddenly NO READING from the front!

So....Monday...BMW's diagnosis :
Rear - under inflated...."the K51's will show a warning at a higher presure than the older K25's" that I was used to....like 2.1 vs 1.9....and "temperature can also affect it" ( it was 2.2 and occasionally dropped to 2.1 hence triggered the warning ) Undertandable.
Front - battery is flat...and he showed me on his hand held device....ZAR2.3k for replacement? No thanks.

So off I went.....and since then IT HAS BEEN WORKING FINE....front and back....

Ek weet daarem nie.

Antois · « **Reply #42 on:** March 02, 2018, 03:25:46 pm »

I took a TPS which I have done a battery replacement for testing, unfortunately it was not sending a signal. The mechanic told me 9/10 it will not work apparently the sensor is very sensitive and easily damage when replacing the batte

Donniepat · « **Reply #43 on:** July 17, 2018, 12:16:47 pm »

Quote from: Mikie on February 07, 2018, 07:30:05 am

Quote from: Antois on February 06, 2018, 02:56:22 pm
Anyone know if the battery is 2050 or 2032

2032 as far as I remember

Did this yesterday and installed this battery into the rear sensor. Most efford in this job is to remove the tyre. The rest is relatively simple. Sensor is now back online and picks up a reading almost instantly. Thanx for the advise Mike.

Donniepat · « **Reply #44 on:** July 17, 2018, 12:18:03 pm »

Quote from: Antois on February 26, 2018, 02:59:11 pm

Apparently when you remove the battery it loses its memory, hope not that is the case.

Not the case...

Daffyd · « **Reply #45 on:** October 29, 2018, 08:59:43 am »

can we get them recalibrated or does BM do that at a service (and charge an arm and a leg) my rear shows 2.2 but when at pumps its 2.5

OomD · « **Reply #46 on:** October 29, 2018, 01:01:52 pm »

I'd rather say the pump is out... way out. Garage pumps are not know for accurate pressure readings.

Edit: And, if I recall, the bike's sensor shows a temperature-corrected value.

TheBear · « **Reply #47 on:** October 29, 2018, 03:19:01 pm »

Quote from: EssBee on March 02, 2018, 09:11:47 am

Ok, I give up.
Scoot was booked in for Monday morning.

Preceeding Friday, after slightly INFLATING the rear, on my way to work, NO warning, BUT, suddenly NO READING from the front!

So....Monday...BMW's diagnosis :
Rear - under inflated...."the K51's will show a warning at a higher presure than the older K25's" that I was used to....like 2.1 vs 1.9....and "temperature can also affect it" ( it was 2.2 and occasionally dropped to 2.1 hence triggered the warning ) Undertandable.
Front - battery is flat...and he showed me on his hand held device....ZAR2.3k for replacement? No thanks.

So off I went.....and since then IT HAS BEEN WORKING FINE....front and back....

Ek weet daarem nie.

Hulle doen presies dit as die battery begin pap word. Werk aan en af.

Antois · « **Reply #48 on:** November 02, 2018, 02:51:01 pm »

Sensors all read 2-4 below actual, no calibration

Colinski · « **Reply #49 on:** May 09, 2019, 12:53:15 pm »

Revival of the painfull topic, but for what it is worth, Sasol garages have fitted digital tyre inflators. Key in the pressure and it stops pumping when you get to what you selected. Pretty accurate as well. Tested with a separate gauge, spot on.

Jughead · « **Reply #50 on:** May 09, 2019, 02:15:34 pm »

Quote from: Antois on November 02, 2018, 02:51:01 pm

Sensors all read 2-4 below actual, no calibration

Actually there is a little trick to getting these things to display the correct (or very near correct) pressure.

Deflate the tyre completely. When the tyre is COMPLETELY deflated, wake the sensor up with a wake-up tool. It will now measure and reflect 0.0Bar. Now reinflate and it should be almost spot on.

OomD · « **Reply #51 on:** May 09, 2019, 02:32:11 pm »

Quote from: Colinski on May 09, 2019, 12:53:15 pm

Revival of the painfull topic, but for what it is worth, Sasol garages have fitted digital tyre inflators. Key in the pressure and it stops pumping when you get to what you selected. Pretty accurate as well. Tested with a separate gauge, spot on.

That's awesome. Long ago garages used to have this ability, but with mechanical gauges. Who can remember? You turn the knob till the needle shows the desired pressure, then it inflates and you listen for when the "ge-clang ge-clang" sound slows to a stop.

Bundu · « **Reply #52 on:** May 09, 2019, 10:11:41 pm »

I'm a bit schizophrenic.... my cars tyres I top up at the filling station, but my bike I do at home when the tyres are cold

Colinski · « **Reply #53 on:** May 10, 2019, 08:49:54 am »

Good move, will get the best life out of them that way.

Antois · « **Reply #54 on:** May 10, 2019, 11:51:24 am »

Jughead what is this wake-up tool?

Mikie · « **Reply #55 on:** May 10, 2019, 12:24:09 pm »

Quote from: Antois on May 10, 2019, 11:51:24 am

Jughead what is this wake-up tool?

One of these goodies

https://www.hexcode.co.za/products/gs-911/procedures/rdc

OomD · « **Reply #56 on:** May 10, 2019, 12:38:51 pm »

Quote from: Antois on May 10, 2019, 11:51:24 am

Jughead what is this wake-up tool?

I got me one from Banggood when I did my sensors batteries, I paid a whopping R189!

https://www.banggood.com/EL-50448-Auto-Tire-Pressure-Monitor-Sensor-Car-TPMS-Activation-Reset-Tool-OEC-T5-for-GMOpel-Motor-p-1046947.html?rmmds=search&cur_warehouse=CN

Jughead · « **Reply #57 on:** May 10, 2019, 02:58:11 pm »

Quote from: Antois on May 10, 2019, 11:51:24 am

Jughead what is this wake-up tool?

One of these. Ateq VT30

AntVan · « **Reply #58 on:** June 24, 2019, 09:08:56 pm »

Well, so I opened mine up. Battery was reading 3V so I sealed it all up again with gasket sealer and replaced the rubber seal.

It's not always the battery. I think mine got damaged when I had a flat and it took a while to stop, on a gravel road. Ever since then, I've had intermittent issues.

TheBear · « **Reply #59 on:** June 25, 2019, 02:31:34 pm »

Quote from: Antois on November 02, 2018, 02:51:01 pm

Sensors all read 2-4 below actual, no calibration

How do you determine the actual?

Quote from: OomD on October 29, 2018, 01:01:52 pm

I'd rather say the pump is out... way out. Garage pumps are not know for accurate pressure readings.

Edit: And, if I recall, the bike's sensor shows a temperature-corrected value.

Jip. Corrected for 20C, if memory serves.