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Discussion Starter · #1 ·
We I’ve had my i3s now for 5 months and I thought I’m check the pressures, the label inside the door says 41psi rear and 36 front but the funny thing is all mine were 33.5 and no alarms had gone off.
what should they be? I’ve rest them all and reset the monitor it’s all a bit strange.
Thanks
 

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Discussion Starter · #3 ·
Thanks I don’t understand why the system hasn’t flagged up a problem? I used to have a Porsche and that was a pain the other way a drop of 2 psi and ping ping alarm alarm it was really annoying.
 

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EGolf
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The system only monitors for loss of air since the system was reset by the revolution of the wheel, so if someone put 33.5psi in then the car will only flag up if you have lost air since. The system you refer to on the Porsche has sensors in the valves on each wheel that send the actual pressures to the car to monitor
 

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Your experience is similar to mine. The i3 iDrive doesn't alert the driver to low tire pressure until it's beyond low.

But there's something even worse. You've probably noticed the system won't display tire pressure until after the car has been driven a short distance. However, I hopped in my i3 one night after work and immediately at startup, I was prompted with a low tire warning. Sure enough, my right rear was dead flat! What irks me is the car had sensed this at some point, but can't / doesn't push a notification to the BMW Connected app on my phone to give me a heads up and prevent an end of the day surprise.
 
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