126 589 04 09 00 Socket wrench bit - WS40.00-P-0023A

FG 40/Set A 

MODEL 107, 124, 126, 129, 140, 163, 164, 168, 170, 199, 201, 202, 203, 208, 209, 210, 211, 215, 219, 220, 230, 240, 251, 414 

Use: 

Socket wrench bit 17 mm, 1/2" square for wheel bolts (mounting of wheel bolts without damage to aluminum cover)

Fig 1: Identifying Socket Wrench Bit (126 589 04 09 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.