Tire size
Example: 255/55 R 19 107 V
255: nominal width in mm
55: aspect ratio in %
R: radial tire code
19: rim diameter in inches
107: load rating, not for ZR tires
V: speed rating, before the R on ZR tires
Speed letter
Q = up to 100 mph/160 km/h
T = up to 118 mph/190 km/h
H = up to 131 mph/210 km/h
V = up to 150 mph/240 km/h
W = up to 167 mph/270 km/h
Y = up to 186 mph/300 km/h
See also:
Front head restraints
Correctly adjusted head restraint
A correctly adjusted head restraint reduces the
risk of injury to cervical vertebrae in the event of
an accident.
Adjusting the head restraint
Correctly adjust ...
Checking the pressure
Only check the tire inflation pressure when the
tires are cold. This means after driving no more
than 1.25 miles/2 km or when the vehicle has
been parked for at least 2 hours. When the tires
a ...
Switching on/off manually
Switching on/off manually
Press the button.
▷ On: the LED lights up.
▷ Off: the LED goes out.
The PDC is shown on the Control Display.
Switch on the backup camera via the iDrive. ...