Connect/Disconnect Testing Unit At Brake Booster - AR43.10-P-0024-01FR

Model 257 

Model 290 

Fig 1: Identifying Test Connection (168 589 08 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Tester (201 589 14 21 00)

Courtesy of MERCEDES-BENZ USA

1. Detach check valve (5) of vacuum line (2) from BAS brake booster (A7/7).
2. Connect test connection (4) between BAS brake booster (A7/7) and vacuum line (2).
3. Connect vacuum tester (3) to test connection (4).
4. Disconnect in reverse order.

   Shown on model 257 

   Courtesy of MERCEDES-BENZ USA