TPMS- changing bar to PSI

[simonfcox]

Can anyone please tell me if you can change the tpms to show psi not bar thank you please be gentle it’s my first post lol

 

[Captain]

Can anyone please tell me if you can change the tpms to show psi not bar thank you please be gentle it’s my first post lol

Something I’m curious about as well

 

[siteguru]

Not possible, unless it's an option in the engineer menu (which we don't officially have access to)

 

[jpk]

Didn't some find how to get into the engineer menu in another thread last year

 

[mg4mc]

You can get access, but there is no simple switch option for PSI/Bar/kPa, unless you can tweak a register directly - but there be HUGE unknowns/dragons.

 

[simonfcox]

Maybe it might be shown in a future incarnation of the software hopefully thanks for the great response guys

 

[Saintsman]

No way to change it on users screen but after a recent software update at garage mine now shows in Kpa.

 

[siteguru]

Kpa = Bar x 100, so you'll see more accurate pressure details.

e.g. I might see 2.6 Bar but you might see 264 kPa (2.64 Bar). The target pressure is 37 psi which is 2.55 Bar, but we can't see the last digit; with Kpa you would be able to set to 255 Kpa.

 

[Rolfe]

Are you saying the last digit is truncated, not rounded up?

 

[siteguru]

I've no idea - I assumed rounded (up/down accordingly). So 2.65 Bar would show as 2.7 Bar whereas 2.64 Bar would show as 2.6 Bar.

 

[Rolfe]

Ah. I misread what you meant when you said "we can't see the last digit."

 

[YaR]

Any one know any more about this? I'd love to have units in kPa because in the day job as a scientist I have to use SI and as a matter of principle I think this should be imposed on the rest of society...

 

[Ian Key]

I asked MG customer services about changing the reading from bars to psi at the end of last year. Here is their response:

"Thank you for your email and apologies for the delay as I have been attempting to find the required data.
The screen will show bar only, from what we can see, however if you prefer to work in psi, then details of this are included in the technical data section of your owners handbook."

 

[Airbag888]

I asked MG customer services about changing the reading from bars to psi at the end of last year. Here is their response:

"Thank you for your email and apologies for the delay as I have been attempting to find the required data.
The screen will show bar only, from what we can see, however if you prefer to work in psi, then details of this are included in the technical data section of your owners handbook."

That's helpful lol... did you find that secret technical data section?

 

[JonnyG]

Any one know any more about this? I'd love to have units in kPa because in the day job as a scientist I have to use SI and as a matter of principle I think this should be imposed on the rest of society...

My car shows the pressures in kPA (I'm on info software R40) - it seems to change in units of 4 so will go from 252 to 256 to 260 etc.., so even then it's rounding to the nearest 4 kPA.

 

[siteguru]

4 kPA is 0.58 psi or 0.04 bar

If you're at 256 kPA then that's a smidge over 37 psi. (The recommended tyre pressure per the manual, at least for the cars with 17" wheels).

 

[WonkoTheSaneUK]

That's helpful lol... did you find that secret technical data section?

Page 327

 

[JonnyG]

Page 327

Not sure whether you're being funny or whether my manual is old !!

If the latter, care to upload a pic please or quote ? .... my manual ends at page 324 with tyre pressures !!

 

[WonkoTheSaneUK]

Not sure whether you're being funny or whether my manual is old !!

If the latter, care to upload a pic please or quote ? .... my manual ends at page 324 with tyre pressures !!

I just downloaded a copy from the maps website mentioned elsewhere on the forum

 

[Martinonline]

I have 2 copies of the owner's manual:

a. MG4_Owner_Manual_EN_Compressed.pdf (327 pages); and

b. MG4_EV_Owner_Manual.pdf (324 pages).

As far as I can see they contain the same information.