000 589 00 21 01 Test Box - WS00.00-P-0034-01B

MODEL ALL (BUS, CAR, Heavy transporter, Light transporter, TRUCK) 

Use in FG 00/01/07/08/54/91 Set B 

Purpose: 

Test box for connecting electrical systems with model-specific adapter cable sets.

Courtesy of MERCEDES-BENZ USA