MG CAR OWNERS FORUM

I was hoping to hear from someone else who has experienced the same problem I am.

I took my 2016 330e to a local independent garage, and they checked the bedding around the wheels and said it was fine. However, when I pump air into the tires, the pressure drops to 32 psi up front and 36 psi in the back.

Would it be possible that it is returning to the conventional tyre pressure rather than a hybrid vehicle due to an error in the software?

Much obliged

Are you implying that the pressure displayed on the computer differs from the pressure you applied to the tire, or that each of the four tires is leaking?

We don't suspect a leak because the pressure decreases from 35 °F and 38 °R to 32 °F and 36 °R. There is no further reduction. Am I mistaken in thinking this is a software issue?

Does it depend on the temperature? As the compressed air cools, its pressure decreases, but its temperature rises during injection.
How does the pressure feel after a long drive?

While driving, the pressure increases.

That is, in fact, expected. At 6 degrees Celsius, the TPS indicates pressures of 2.4 bar, which is typical for this time of year when I begin my commute to work at 6 in the morning.
Twenty degrees Celsius and 2.5 bar are the readings I see when I get off work.
Physically straightforward.

Tire pressure gauges are more accurate than computers, and you'll see the difference between the two in no time.
Make sure to set the door pillar pressures to cold, and check them periodically; I don't think the pressures are changing; the problem is that the way they are being read is inconsistent and unreliable.

As mentioned earlier, cold can also change them.
The computer says my tyre pressure is 34 bar; I have no idea if this is changeable, and I don't put much faith in it.