Mercedes-Benz GL Operator's Manual page 440

Wheel and tire combinations
438
All-terrain tires
R 19
Tires
BA: 275/55 R 19 111 H M+S
Winter tires
R 19
Tires
BA: 265/55 R 19 109 H M+S i
R 20
Tires
BA: 275/45 R 20 110 V XL M+Si
GL 63 AMG 4MATIC
Summer tires
R 21
Tires
BA: 295/40 ZR 21 111 Y XL
Winter tires
R 20
Tires
BA: 275/45 R 20 110 V XL M+S i
Use of snow chains not permitted. Observe the notes under "Snow chains".
3
Only for vehicles with the AMG Sports package (code P 31).
5
3
5
3
Alloy wheels
BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
Alloy wheels
BA: 8.5 J x 19 H2
Wheel offset: 2.44 in (62 mm)
Alloy wheels
BA: 9.0 J x 20 H2
Wheel offset: 1.61 in (41 mm)
Alloy wheels
BA: 10.0 J x 21 H2
Wheel offset: 1.81 in (46 mm)
Alloy wheels
BA: 9.0 J x 20 H2
Wheel offset: 1.61 in (41 mm)