[MB21]

I noticed that suggested tire pressure in the system is way off, tire itself is rated to 52 and suggested on the back is 56 have anyone seen similar issue? I have X7 M50i

[Tattooed]

Originally Posted by MB21

I noticed that suggested tire pressure in the system is way off, tire itself is rated to 52 and suggested on the back is 56 have anyone seen similar issue? I have X7 M50i

Is the tire size correct in the iDrive? I had to update mine after delivery. Also, are the tires warm or cold? The recommended pressure changes with tire temperature.

[like2short]

Originally Posted by Tattooed

Is the tire size correct in the iDrive? I had to update mine after delivery. Also, are the tires warm or cold? The recommended pressure changes with tire temperature.

Also need to specify the speed. Over 100 or under 100.

[Specularius]

Originally Posted by like2short

Also need to specify the speed. Over 100 or under 100.

Will that setting put a limit on what the car can hit as far as speed? Will the ECU not let the car exceed 100 MPH if the setting is set for below 100MPH?

[like2short]

Originally Posted by Specularius

Will that setting put a limit on what the car can hit as far as speed? Will the ECU not let the car exceed 100 MPH if the setting is set for below 100MPH?

No on limiting speed. But.

They increase the air pressure recommendation for higher speeds.

[swissguy]

Originally Posted by Specularius

Will that setting put a limit on what the car can hit as far as speed? Will the ECU not let the car exceed 100 MPH if the setting is set for below 100MPH?

Oh no - even with the setting set to <100 the car will do over 100