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

Model 164, 166, 292 

Fig 1: Identifying Vacuum Tester (201 589 13 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Test Connection (168 589 08 63 00)

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Show on model 164.1 

Connecting 

1. Operate brake pedal several times.

   In order to reduce the vacuum in the BAS brake booster (A7/7).

2. Disconnect vacuum line with check valve (2) from BAS brake booster (A7/7).
3. Mount test connection (3) between BAS brake booster (A7/7) and vacuum line with check valve (2).

   Pay attention to manufacturer's operating instructions.

   Otherwise measurement errors can occur.

4. Connect vacuum tester (1) to test connection (3).

   Disconnect 

5. Disconnect in reverse order.