See also:

Warning triangle
The warning triangle is located in a holder in the trunk lid. Press the tabs to take it out. ...

Tire inflation pressures for X6 xDrive50i
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Tire inflation pressures at max. speeds above 100 mph/160 km/h
Speeds above 100 mph/160 km/h In order to drive at maximum speeds in excess of 100 mph/160 km/h, please observe, and, if necessary, adjust tire pressures for speeds exceeding 100 mph/160 km/h ...