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MG ZS EV Tyre Pressure

AreFriendsElectric

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MG ZS EV
Hello, I have only had my car since the end of November. I have topped up the tyre pressures a couple of weeks ago to help with efficiency. I now have a warning at the rear left, 2.3 rather than 2.8 bar. There does not seem to be any form of puncture. Any ideas as to a potential issue? Or is this simply weather related?
 
That's not what I mean if you pump up a tyre after a drive the bar\psi reading will drop by the next cold morning that's normal
 
The alert has come up on the dash/app. When last checked two weeks ago, they were all at 2.8 bar. Now the rear left is at 2.3, causing an alert.
 
Not all punctures are easily visible. Pump it back up when cold, IE not immediately after a drive, and check next day with a hand gauge to see if it has gone down again. The tpms in the car will only update after a certain distance (not sure how far) has been driven.
 
The tpms in the car will only update after a certain distance (not sure how far) has been driven.
The tpms will update normal with in a few rotations of the tyre or on a pressure change if only needs a longer drive if you fit new TPMS or wheel swap (gen2 the gen1 needs software)
 
Sounds like the TPMS is working perfectly to me.
You either have a slow puncture or somebody has let one of you tyres down.
 
Hello, I have only had my car since the end of November. I have topped up the tyre pressures a couple of weeks ago to help with efficiency. I now have a warning at the rear left, 2.3 rather than 2.8 bar. There does not seem to be any form of puncture. Any ideas as to a potential issue? Or is this simply weather related?
I've put Nitrogen in my tyres for years, first on my leaf and then my MG5. The theory goes it saves you money in ICE cars, though the rational (reduced weight of fuel) doesn't hold up in an EV obviously. But for me I know the importance of having the correct pressure in tyres so Nitrogen scores here too as the atoms are larger so cannot seep through the pores of the tyre, thus virtually no leak.
A local tyre garage here charges £2.50 per tyre then every 3 months he says come back to get checked and top ups are free.
Ive been doing this since 2017 and I'd say the number of times they've topped up is in single figures
 
I've put Nitrogen in my tyres for years, first on my leaf and then my MG5. The theory goes it saves you money in ICE cars, though the rational (reduced weight of fuel) doesn't hold up in an EV obviously. But for me I know the importance of having the correct pressure in tyres so Nitrogen scores here too as the atoms are larger so cannot seep through the pores of the tyre, thus virtually no leak.
A local tyre garage here charges £2.50 per tyre then every 3 months he says come back to get checked and top ups are free.
Ive been doing this since 2017 and I'd say the number of times they've topped up is in single figures
No wonder top ups are free! 😁

And they get first dabs on any potential tyre sales... a cunning strategy methinks.
 
But for me I know the importance of having the correct pressure in tyres so Nitrogen scores here too as the atoms are larger so cannot seep through the pores of the tyre, thus virtually no leak.
Not sure your logic holds up here. Air is 78% nitrogen and 21% oxygen. A molecule of nitrogen is 300 picometres and oxygen is 292 picometres, so putting air in your tyres will have the same effect as just putting in nitrogen. :)
 
Our rear tyre started losing pressure, requiring top up every couple of weeks. Turned out it was a slooooooow puncture and cost £24 to fix. All good now.
 
No wonder top ups are free! 😁

And they get first dabs on any potential tyre sales... a cunning strategy methinks.
True, but I never changed my tyres on my leaf and 2 years in on my MG5, he must be in it for the long run. Then again, given his age, my money is on my tyres lol
 
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