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Home >> Audi >> 2022 >> A5 Quattro Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 245 (Hydraulic Components (Brake System)) >> 47 Hydraulic Components >> Vacuum System >> Vacuum System, Checking >> Vacuum, Creating With Hand Vacuum Pump >> Procedure

Vacuum, Creating With Hand Vacuum Pump: Procedure

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In certain situations, the vacuum can be created using a Hand Vacuum Pump:VAS6213  instead of using the engine or a vacuum pump.

-- To do so, connect the Hand Vacuum Pump:VAS6213  to the vacuum hose from the connection -B- to the Brake Servo Tester:VAS6721  .

Fig 1: Identifying VAS 6721 Shut-Off Valves
GWWN47-10210Courtesy of AUDI OF AMERICA, LLC

-- Open the shut-off valve -B-.

-- Create the vacuum using the Hand Vacuum Pump:VAS6213  until a vacuum between 600 and 950 mbar (9 and 13 psi) is displayed on the Brake Servo Tester:VAS6721  .

-- Then perform the relevant tests.