DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
Conform to Federal Safety Requirements
All passenger car tires must conform to
Federal Safety Requirements in addition to
these grades.◀
See also:
BMW X3 iDrive Owners Manual
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For the 530i, 535i, 550i, 525d,
530d and 535d: check oil level
The concept
The oil level is monitored electronically and displayed
on the Control Display.
Requirements
▷ The engine must be running and warm after
the vehicle has been driven for at lea ...
External temperature
External temperature warning
If the display drops to
+37 ℉/+3 ℃, a signal sounds.
A Check Control message is displayed.
There is the increased danger of
ice.
Ice on roads
Even ...