BMW Coupe 4 Series Owner's Manual page 192

Mobility
Tire size
Front: 225/45 R 18
91 Y RSC
Rear: 255/40 R 18
95 Y RSC
Front: 225/40 R 19
89 Y RSC
Rear: 255/35 R 19
92 Y RSC
Front: 225/35 R 20
90 Y XL RSC
Rear: 255/30 R 20
92 Y XL RSC
Emergency wheel:
T 135/80 R 17 102
M
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 from the
relevant table on the following pages. Other‐
wise tire damage and accidents could occur.◀
Tire inflation pressure values over
100 mph/160 km/h
428i, 428i xDrive
Without high-speed tuning feature
188
Wheels and tires
Pressure specifications
in bar/PSI
2.2 / 32 -
- 2.4 / 35
2.4 / 35 -
- 2.6 / 38
2.6 / 38 -
- 3.0 / 44
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
Online Edition for Part no. 01 40 2 960 520 - II/15
Tire size
Specifications in
bar/PSI with cold
tires
225/50 R 17 94 V
M+S A/S RSC
225/50 R 17 94 H
M+S RSC
225/45 R 18 91 V
M+S A/S RSC
225/45 R 18 91 Y
RSC
225/45 R 18 95 V
M+S XL RSC
225/40 R 19 93 V
M+S XL A/S RSC
Front: 225/45 R 18
91 Y RSC
Rear: 255/40 R 18
95 Y RSC
Front: 225/40 R 19
89 Y RSC
Rear: 255/35 R 19
92 Y RSC
Front: 225/35 R 20
90 Y XL RSC
Rear: 255/30 R 20
92 Y XL RSC
Emergency wheel:
T 135/80 R 17 102
M
With high-speed tuning feature
I n f o r ma t i o n P r o v i d e d b y :
Pressure specifications
in bar/PSI
2.4 / 35 2.9 /42
2.6 / 38 3.1 / 45
2.4 / 35 -
- 2.7 / 39
2.4 / 35 -
- 2.7 / 39
2.6 / 38 -
- 3.1 / 45
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60