220 589 00 99 24 Connection plug - WS54.00-P-0050-18B

MODELS ALL 

FG 42/43/54/Set B 

Use: 

Connector with measuring pick-off for making Y-connections with adapter cables 220 589 00 99 01 up to 220 589 00 99 13 for dynamic measurements.

(Set=2 off)

Fig 1: Identifying Connection Plug (220 589 00 99 24)

Courtesy of MERCEDES-BENZ USA