172 589 01 63 00 30-pin adapter cable - WS42.00-P-0089B
FG 42/Set B
MODEL 166, 172, 231, 246
Use:
For diagnosis of the electric parking brake (EPB)
NOTE:
In combination with socket box 124 589 00 21 00 or 129 589 00 21 00
Courtesy of MERCEDES-BENZ USA