Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 380)

Winter tires 32 Alloy wheels V1 V2
BA 255/50 R19 107 H XL
M+Si MOExtended 31
8.0 J x 19 H2
Wheel offset: 2.21 in (56 mm) # #
BA 255/50 R19 107 H XL
M+SiMOExtended 30, 31
8.5 J x 19 H2
Wheel offset: 2.32 in (59 mm) # #
"Minispare" emergency spare wheel 30
Tires Wheels V1 V2
T 155/90 R18 113 M
Tire pressure: 420 kPa (4.2 bar/61 psi) 4 B x 18 H2
Wheel offset: 1.58 in (40 mm) # #
i The specified tire pressure is printed in yellow on the emergency spare wheel.
32 Not available from the factory.
31 MOExtended tires (tires featuring run-flat characteristics) only in combination with an activated tire pressure
loss warning system or tire pressure monitor.
30 Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
378
Wheel and tire combinations
Wheels
and
tires