BMW X4 Owner's Manual page 321

Tire size Pressure specifications
in bar/PSI
Front: 245/45 R 2.2 / 32
20 103 V XL M
+S
Rear: 275/40 R -
20 106 V XL M
+S
Emergency Speed up to a max. of
wheel: 50 mph / 80 km/h
T 135/80 R 18 4.2 / 60
104 M
Tire inflation pressures at max.
speeds above 100 mph/160 km/h
Warning
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 ex‐
ceeding 100 mph/160 km/h from the relevant
table on the following pages. Otherwise, tire
damage and accidents could occur.
For speeds over 100 mph/160 km/h and for opti‐
mum driving comfort, note the pressure values in
the tire inflation pressure table and adjust as nec‐
essary.
Tire pressure values over
100 mph/160 km/h
X4 xDrive30i
Without high-speed tuning feature
-
2.4 / 35
Online Edition for Part no. 01405A37CC6 - VI/21
Wheels and tires
Tire size
Specifications in
bar/PSI with cold
tires
225/60 R 18 104
H XL A/S
245/50 R 19 105
H XL A/S
225/60 R 18 104
H XL M+S
245/50 R 19 105
W XL
245/50 R 19 105
V XL M+S
Front: 245/45 R
20 103 Y XL
Rear: 275/40 R
20 106 Y XL
Front: 245/45 R
20 103 W XL
Rear: 275/40 R
20 106 W XL
Front: 245/40 R
21 100 Y XL
Rear: 275/35 R
21 103 Y XL
Front: 245/45 R
20 103 V XL M
+S
Rear: 275/40 R
20 106 V XL M
+S
Emergency
wheel:
T 135/80 R 18
104 M
MOBILITY
Pressure specifications
in bar/PSI
2.6 / 38 2.8 / 41
2.6 / 38 2.8 / 41
2.2 / 32 -
- 2.4 / 35
2.4 / 35 -
- 2.6 / 38
2.5 / 36 -
- 2.7 / 39
2.5 / 36 -
- 2.7 / 39
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
321