Mercedes-Benz 2009 CL-Class Operator's Manual page 572

Technical data
Rims and tires
Same size tires
Model CL 550 4MATIC
Rims (light alloy) 8.5 J x 18 H2
Wheel offset 1.69 in (43 mm)
14,15 255/45 R18 99H M+S
All-season tires
14,15,16 255/45 R18 99V M+S.
Winter tires
14 Radial-ply tires.
15 For use with snow chains contact an authorized Mercedes-Benz Center.
16 Not available as factory equipment.
570
CL 600
CL 550 4MATIC (Sport Package)
CL 600 (Sport Package)
8.5 J x 18 H2
1.69 in (43 mm)
—
255/45 R18 99V M+S.