Wheels: Application and ID
GF40.10-P-1010-01A Rim Designation
ET wheel offset (distance from rim center to wheel contact surface, measured in mm)
H Hump (rim with safety hump)
a Internal rim width in inches
d Rim diameter in inches
l Hole circle �
z Centering bore �
Sheet-steel disk wheel
1 Designation e.g. 6 J X 15 H2
2 Part no. e.g. 169 400 04 02
3 Identification as Mercedes-Benz original part
4 Identification of wheel offset e.g. ET 44
5 Segment centering
Light alloy rim
1 Designation e.g. 7 1/2 J X 17 H2
2 Part no., e.g. 204 401 05 02 or B6 647 4279
3 Identification as Mercedes-Benz original part
4 Identification of wheel offset e.g. ET 47
5 Segment centering