Brake Servo Tester VAS6721, CONNECTING

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2015 Audi S7, 2015 Audi RS 7, 2015 Audi A7 Quattro, 2014 Audi S7, and 2014 Audi RS 7. 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 Servo Tester VAS6721 -see following graphics-.

Fig 1: Connecting VAS 6721

Courtesy of AUDI OF AMERICA, LLC

Item number	Component	Explanation
A	Shut-off valve	In direction toward the vacuum hose, the check valve and vacuum pump (if equipped)
B	Shut-off valve	Opening 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- too the vacuum hose and push the adapter -C- into the brake booster.

Fig 2: Connecting VAS 6721 Hose -A- To Vacuum Hose And Pushing Adapter -C- Into Brake Booster

Courtesy of AUDI OF AMERICA, LLC