Tire temperature.

[artem123]

Dear fellow owners)))
About two weeks ago i got my F15 finally coded and since that time cannot stop myself from falling on love with my car all over again! This morning i activated vehicle status TPM screen in iDrive which after coding shows individual tire pressure and its temperature, after driving for some time i discovered that my front-left ( driver's side ) tire is warmer by 10 degree then rear- right... While front-right and rear-left all have the same temperature. Interested in opinions. BTW as soon as i figure out how to upload photo, i will)

[artem123]

Here is photo)

[Kzang]

My unscientific explanation is that you are the only passenger in the X5 and there is more weight on the front left side of the X5 causing more friction? Just a guess lol.

[crackerjack15]

Also could mean that the wheel is toed in/out and causing increase temp in that tire.

Is the tire feathered in any way when you run your hand over it?

[artem123]

Originally Posted by crackerjack15

Also could mean that the wheel is toed in/out and causing increase temp in that tire.

Is the tire feathered in any way when you run your hand over it?

Good question, i thought so as well, but it does not seemed to be. Car has 8000 mls on it, which would be enough to show uneven wear.

[artem123]

Originally Posted by Kzang

My unscientific explanation is that you are the only passenger in the X5 and there is more weight on the front left side of the X5 causing more friction? Just a guess lol.

Ha-ha! I am not THAT fat)))) LOL!

[mdallas]

different temps (sunlight?, garage heater?) when parked? then if you adjusted your pressures in the same parking conditions would cause this. ie if you adjusted left-front at 78 degrees to the correct psi.

[elisiX]

I've noticed the same thing, though the dealer told me that they have ordered a new sensor/module for mine. Not an individual tyre sensor, but the computer for it or something.

[artem123]

Originally Posted by elisiX

I've noticed the same thing, though the dealer told me that they have ordered a new sensor/module for mine. Not an individual tyre sensor, but the computer for it or something.

How did you approach dealer about this issue? I mean i coded this.

[elisiX]

I didn't.

I have the Tyre Pressure option per your screenshot above, and they called me while the car was in transit and said they picked up on a fault with the feature, and that a new sensor or module would need to be fitted. To be honest, I haven't noticed anything wrong, and in fact only learned that tyre pressures and temps change with use.

[ixlr8]

Originally Posted by artem123

Dear fellow owners)))
About two weeks ago i got my F15 finally coded and since that time cannot stop myself from falling on love with my car all over again! This morning i activated vehicle status TPM screen in iDrive which after coding shows individual tire pressure and its temperature, after driving for some time i discovered that my front-left ( driver's side ) tire is warmer by 10 degree then rear- right... While front-right and rear-left all have the same temperature. Interested in opinions. BTW as soon as i figure out how to upload photo, i will)

Any chance you made sharper/faster right hand turns vs left hand?

[artem123]

Originally Posted by elisiX

I didn't.

I have the Tyre Pressure option per your screenshot above, and they called me while the car was in transit and said they picked up on a fault with the feature, and that a new sensor or module would need to be fitted. To be honest, I haven't noticed anything wrong, and in fact only learned that tyre pressures and temps change with use.

Got it. Thank you. I do not see any issues here either, but it was rather entertaining to observe)

[artem123]

Originally Posted by ixlr8

Any chance you made sharper/faster right hand turns vs left hand?

No)))Not at all, oppositely this morning i was driving as slow as i could, since i was thinking hard about reason to call out)))LOL

[42pilot]

There is a strong chance the sensor is not that accurate and 5 degrees means nothing in reality. Your tire temps, if you just came off a drive or took it while driving, are actually quite low. For your info, my track tires didn't even work as designed until we hit +180 degrees F.

Generally speaking in typical street driving, the higher the pressure, the lower the temp. The opposite is true.

[artem123]

Originally Posted by 42pilot

There is a strong chance the sensor is not that accurate and 5 degrees means nothing in reality. Your tire temps, if you just came off a drive or took it while driving, are actually quite low. For your info, my track tires didn't even work as designed until we hit +180 degrees F.

Generally speaking in typical street driving, the higher the pressure, the lower the temp. The opposite is true.

Yep, great to know. I thought so. I am not alarmed or worry, it is just rather funny)

[alphaod]

I thought temp couldn't coded for the F15?

What option is this?

[artem123]

Originally Posted by alphaod

I thought temp couldn't coded for the F15?

What option is this?

It can apparently. I did not code it myself, someone did it for me remotely. PM me if interested.

[crackerjack15]

I coded mine to show temps and they vary sometimes by 5-10 degrees between tires.

[alphaod]

It guess time to fire up that computer then. I'd like to see some temps... I swear it didn't work for me when I coded the temps, but I'll look again.

Anyways I think it's normal to have different temperatures. Hell the tire pressures vary so much depending on the road I'm on.

[artem123]

Wow, thank you all for helping!

[alphaod]

I redid some of the coding and from what I have seen with temperatures, when driving alone, the driver's front tire definitely heats up faster than the passenger rear tire, when I have a full car, they head up more evenly.