BMW X1 2018 Owner's Manual page 246

MOBILITY
Tire inflation pressure values
over 100 mph/160 km/h
sDrive28i, xDrive28i
Without high-speed tuning feature
Tire size Pressure specifications in
bar/PSI
Specifications
in bar/PSI with
cold tires
225/50 R 18 2.5 / 36
95 V M+S A/S
Std/RSC
225/50 R 18
95 H M+S
RSC
225/50 R 18
95 W RSC
225/45 R 19 2.7 / 39
92 W RSC
Emergency Speed up to a max. of
wheel: 50 mph / 80 km/h
T 135/90 R 17 4.2 / 60
104 M
With high-speed tuning feature
246
Wheels and tires
2.5 / 36
2.7 / 39
Online Edition for Part no. 01402120596 - II/18
Tire size Pressure specifications in
bar/PSI
Specifications
in bar/PSI with
cold tires
225/50 R 18 2.8 / 41
95 V M+S A/S
Std/RSC
225/50 R 18
95 H M+S
RSC
225/50 R 18
95 W RSC
225/45 R 19 3.0 / 44
92 W RSC
Emergency Speed up to a max. of
wheel: 50 mph / 80 km/h
T 135/90 R 17 4.2 / 60
104 M
Tire identification marks
Tire size
245/45 R 18 96 Y
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
18: rim diameter in inches
96: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Maximum tire load
Maximum tire load is the maximum permissible
weight for which the tire is approved.
Locate the maximum tire load on the tire sidewall
and the Gross Axle Weight Rating – GAWR – on
the certification label on the driver's door pillar.
2.8 / 41
3.0 / 44