[D CHOI]

How often does the M2 need tire pressure checked? In the manual it shows at least twice a month or before a long trip. However I have never checked my tire pressures and the last time was during my 1200 mile run in service. On the BMW connected app it shows tire pressure "OK" all the time so I never worried about it. The front is suppose to be 93 while rears are 98 when tires are COLD. However the computer can't read when cold and only after a brief drive it reads them higher as they should due to tires being warmed up thus creating a higher pressure.

[STK]

Originally Posted by D CHOI

How often does the M2 need tire pressure checked? In the manual it shows at least twice a month or before a long trip. However I have never checked my tire pressures and the last time was during my 1200 mile run in service. On the BMW connected app it shows tire pressure "OK" all the time so I never worried about it. The front is suppose to be 93 while rears are 98 when tires are COLD. However the computer can't read when cold and only after a brief drive it reads them higher as they should due to tires being warmed up thus creating a higher pressure.

Get a pressure gauge, dude. You can get a nice one for less than $50 or a cheap one for $15. It's good to have one around.

As for timing, if you're driving to and from work and taking short trips, every couple of weeks is great unless you feel something is wrong or it looks wrong. If you're taking a long trip especially in very hot weather, check before you go. (The Ford Explorer problem/tragedy.)

[D CHOI]

Ok so based on the manual and driver door it shows 35psi for both front and rear. However today the Tire Pressure Monitor on the iDrive shows 32-35. That seems acceptable even though not optimal. The TPM will only warn you if it loses a significant amount of pressure. So ideally it's best to check at least once a month especially in the winter time. Also best to check when tires are cold as it gives the most accurate reading because warm tires will inflate the pressure.

[rich8566]

Originally Posted by D CHOI

How often does the M2 need tire pressure checked? In the manual it shows at least twice a month or before a long trip. However I have never checked my tire pressures and the last time was during my 1200 mile run in service. On the BMW connected app it shows tire pressure "OK" all the time so I never worried about it. The front is suppose to be 93 while rears are 98 when tires are COLD. However the computer can't read when cold and only after a brief drive it reads them higher as they should due to tires being warmed up thus creating a higher pressure.

Keep your tires at 35psi cold at all times. This should not be hard to do since you can view tire pressures on the idrive screen. Once set I rarely need to add or subtract air and that mainly happens during seasonal changes.

[fanshu]

Originally Posted by rich8566

Keep your tires at 35psi cold at all times. This should not be hard to do since you can view tire pressures on the idrive screen. Once set I rarely need to add or subtract air and that mainly happens during seasonal changes.

Not all M2 has the tire pressure and temp showing in iDrive, so we need a pump to check out for every tire.

[rich8566]

Originally Posted by fanshu

Not all M2 has the tire pressure and temp showing in iDrive, so we need a pump to check out for every tire.

Have it coded. That's what I did in my '14 235i.

[Prodigy.]

Anyone else notice the tyre pressure monitor on the idrive seems to give incorrect readings?
I would set the tyre pressures at the local service station but the readout always read 1-2 psi lower on the idrive after resetting.
I recently purchased a pressure gauge to double check and yep, idrive reads lower.

[D CHOI]

Originally Posted by Prodigy.

Anyone else notice the tyre pressure monitor on the idrive seems to give incorrect readings?
I would set the tyre pressures at the local service station but the readout always read 1-2 psi lower on the idrive after resetting.
I recently purchased a pressure gauge to double check and yep, idrive reads lower.

Yes I'm glad someone pointed that out as I had the same experience but wasn't sure if my I drive was wrong or the tire shop was wrong. It would read 1-2 lower in Psi. I'm considering getting one of those digital gauges.

[ZPrime]

Originally Posted by D CHOI

Yes I'm glad someone pointed that out as I had the same experience but wasn't sure if my I drive was wrong or the tire shop was wrong. It would read 1-2 lower in Psi. I'm considering getting one of those digital gauges.

Digital tire pressure gauges suck, the battery is always dead when you need it. Get a decent mechanical gauge (e.g. Longacre).