BMW X3 Owners Manual: Tire inflation pressures up to 100 mph/160 km/h
For speeds of up to 100 mph/160 km/h and for optimum driving comfort, note the pressure values in the tire inflation pressure table, and adjust as necessary.
These pressure values can also be found on the tire inflation pressure label on the driver's door pillar.
Maximum permissible speed
Do not exceed 100 mph/160 km/h; otherwise, tire damage and accidents may result.
Safety information
The tire characteristics and tire inflation pressure
influence the following:
The service life of the tires.
Road safety.
Driving comfort.
...
Tire inflation pressure values up to 100 mph/160 km/h
X3 sDrive28i, X3 xDrive28i,
X3 xDrive28d
X3 xDrive35i
...
Other materials:
BMW X3 Service & Repair Manual > Electronic damping force adjustment: Removing and installing/replacing control unit for vertical dynamic control
IMPORTANT:
Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DISCHARGE (ESD PROTECTION) .
Necessary preliminary tasks:
Remove ignition key.
Disconnect BATTERY NEGATIVE CABLE .
Remove FLAP IN LUGGAGE COMPARTMENT TRIM PANEL ON RIGHT .
Undo screw (1), release expanding ...