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

Model 167 

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

Courtesy of MERCEDES-BENZ USA

Connecting 

1. Operate brake pedal several times.

   To reduce the vacuum in the brake booster (2).

2. Detach vacuum line (1) from brake booster (2).
3. Install test connection between brake booster (2) and vacuum line (1).

   Observe manufacturer's operating instructions. Measurement errors occur otherwise.

   The check valve is installed in the fitting of the vacuum line (1).

4. Connect vacuum tester at test connection.

   Disconnect 

5. Disconnect in reverse order.