Brake Booster Tester, Connecting

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2017 Audi SQ5, 2017 Audi Q5, 2016 Audi SQ5, 2016 Audi Q5, and 2015 Audi SQ5. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the vacuum hose from the brake booster.

-- Pressing the brake pedal a few times beforehand makes it easier to remove the vacuum hose.

-- Connect the Brake Booster VAS6721 as shown in the following illustrations.

Fig 1: Connecting Brake Booster VAS6721

Courtesy of AUDI OF AMERICA, LLC

Item	Component	Explanation
A	Shut-off valve	In direction toward the vacuum hose, the check valve and vacuum pump (if equipped)
B	Shut-off valve	Open the Brake Servo Tester VAS6721 makes it easier to remove Open to simulate an incorrect source Connect the Hand Vacuum Pump VAS6213.
C	Shut-off valve	Toward the brake booster

-- Connect the Brake Servo Tester VAS6721 hose -A- to the vacuum hose and push the adapter -C- into the brake booster.

Fig 2: Connect The - VAS 6721- Hose -A- Too The Vacuum Hose And Push The Adapter -C- Into The Brake Booster.

Courtesy of AUDI OF AMERICA, LLC