164 589 07 63 00 SCRCM adapter cable - WS54.00-P-0082B

FG 54/Set B 

MODEL 164.124/125/824/825, 212.024/224, 251.125 

Use: 

For line check on control unit wiring hardness (Selective catalytic reduction).

Fig 1: Identifying SCRCM Adapter Cable (164 589 07 63 00)

Courtesy of MERCEDES-BENZ USA