Tire size Pressure specifications
in bar/PSI
Front: 245/40 R
21 100 Y XL
2.6 / 38 -
Rear: 275/35 R
21 103 Y XL
- 2.9 / 42
Front: 245/45 R
20 103 V XL M
+S
2.6 / 38 -
Rear: 275/40 R
20 106 V XL M
+S
- 2.8 / 41
Emergency
wheel:
T 135/80 R 18
104 M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Tire size Pressure specifications
in bar/PSI
Specifications in
bar/PSI with cold
tires
245/50 R 19
105 W XL
245/50 R 19
105 V XL M+S
2.7 / 39 3.4 / 49
245/45 R 20
103 V XL M+S
2.9 / 42 3.4 / 49
Front: 245/45 R
20 103 Y XL
2.5 / 36 -
Rear: 275/40 R
20 106 Y XL
- 2.8 / 41
Front: 245/45 R
20 103 W XL
2.9 / 42 -
Rear: 275/40 R
20 106 W XL
- 3.3 / 48
Tire size Pressure specifications
in bar/PSI
Front: 245/40 R
21 100 Y XL
2.8 / 41 -
Rear: 275/35 R
21 103 Y XL
- 3.1 / 45
Front: 245/45 R
20 103 V XL M
+S
2.9 / 42 -
Rear: 275/40 R
20 106 V XL M
+S
- 3.1 / 45
Emergency
wheel:
T 135/80 R 18
104 M
Speed up to a max. of
50 mph / 80 km/h
4.2 / 60
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 door B-pillar.
Divide the tire load by 1.1. It must be greater
than one-half of the vehicle’s Gross Axle Weight
Rating – GAWR. Note, front vs. rear GAWR and
tire loads, respectively.
Seite 291
Wheels and tires
MOBILITY
291
Online Edition for Part no. 01405A10E93 - VI/20