451 589 00 10 00 Wrench SW 12 - WS13.00-P-0006B

ENGINE 132 

FG 13/Set B 

Use: 

Wrench SW 12 for detensioning the belt tensioning pulley

Fig 1: Identifying Wrench SW 12 (451 589 00 10 00)

Courtesy of MERCEDES-BENZ USA