000 589 02 22 00 Test card - WS82.00-P-0024B

MODEL 117, 156, 166, 172, 176, 207, 212, 218, 242, 246, 292 

Used in FG 82/Set B 

Purpose: 

For checking the SD card connection, the line connection as well as the navigation mode in the Audio 20 system.

Fig 1: Identifying Test Card (000 589 02 22 00)

Courtesy of MERCEDES-BENZ USA