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      10-23-2020, 01:31 PM   #1
Mama
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Tyre Pressure

Hi,

How clever are the tyre pressure sensors and software in the X5?
I had an alert to say my fronts were 1.9 bars so pumped them up. While driving I checked again and all were showing 2.2

Later on, I put a heavy item in the boot and looked at the sensors and I was recommended to pump-up to 2.4 - I thought that was cool - but how accurate is it? I've not checked since.

Also, any recommendations for a battery-operated air inflator compressor? I like the DEWALT DCC020, but its not that common in the UK and bit ££.
Appreciate 0
      10-23-2020, 02:04 PM   #2
jad03060
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The computer logic appears to take into account the actual tyre temperature when recommending the current pressure as opposed to what is on the label (in the US anyway) on the door post. One of the things I did with Bimmercode was to set the pressure display to also show the temperature.

In some markets, on some BMWs, they utilize the antilock wheel rotation sensors to estimate when a tire pressure is low, so any recommendation on desired pressure could be off, if it displays it at all.

But, in general, I've found the TPMS values to match up pretty closely to an external gauge when checking.

I've opted for a 12vdc powered compressor, then I don't have to worry about whether the battery in the thing is charged or not.
Appreciate 0
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