Mercedes-Benz C-Class Coupe Operator's Manual page 334

Wheel and tire combinations
332
All-weather tires
R17
Tires
FA: 225/45 R17 91 H M+S
RA: 245/40 R17 91 H M+S
R18
Tires
FA: 225/40 R18 92 H XL M+S
RA: 255/35 R18 94 H XL M+S
FA: 225/40 R18 92 H XL M+S
RA: 255/35 R18 94 H XL M+S
Winter tires
R16
Tires
BA: 205/55 R 16 91 H M+S i
R17
Tires
BA: 225/45 R 17 91 H M+S i
8 Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
Additional measures necessary (hub caps on rear axle, code 776).
9
Alloy wheels
FA: 7.5 J x 17 H2
Wheel offset: 1.85 in (47 mm)
8
RA: 8.5 J x 17 H2
Wheel offset: 2.28 in (58 mm)
Alloy wheels
FA: 7.5 J x 18 H2
Wheel offset: 1.85 in (47 mm)
8, 9
RA: 8.5 J x 18 H2
Wheel offset: 2.13 in (54 mm)
FA: 8.0 J x 18 H2
Wheel offset: 1.97 in (50 mm)
8, 9
RA: 8.5 J x 18 H2
Wheel offset: 2.13 in (54 mm)
Alloy wheels
BA: 7.0 J x 16 H2
Wheel offset: 1.69 in (43 mm)
Alloy wheels
BA: 7.5 J x 17 H2
Wheel offset: 1.85 in (47 mm)