Mercedes-Benz S-Class Operator's Manual page 422

Wheel and tire combinations
420
R 20
Tires
BA: 255/40 R20 101 V XL M+Si
BA: 255/40 R20 101 V XL M+Si
FA: 255/40 R20 101 V XL M+Si
RA: 285/35 R20 104 V XL M+Si
FA: 255/40 R20 101 V XL M+Si
RA: 285/35 R20 104 V XL M+Si
Observe notes on "Large wheels" under "General notes" in "Wheel/tire combination".
6
The use of snow chains is not permitted. Observe the notes in the "Snow chains" section.
5
Alloy wheels
BA: 8.5 J x 20 H2
6
Wheel offset: 1.50 in (38 mm)
BA: 8.5 J x 20 H2
6
Wheel offset: 1.54 in (39 mm)
FA: 8.5 J x 20 H2
6
Wheel offset: 1.50 in (38 mm)
5, 6
RA: 9.5 J x 20 H2
Wheel offset: 1.50 in (38 mm)
FA: 8.5 J x 20 H2
6
Wheel offset: 1.54 in (39 mm)
5, 6
RA: 9.5 J x 20 H2
Wheel offset: 1.54 in (39 mm)