Brake Servo Tester VAS6721, CONNECTING

WARNING: This page is about a different car, the 2016 Volkswagen Beetle, 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, 2013 Volkswagen Beetle, and 2012 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

-- Pull the vacuum hose -1- from the brake booster -2-.

Fig 1: Identifying Vacuum Hose

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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

-- Connect the Brake Servo Tester VAS6721 -see following illustrations-.

Fig 2: Connecting VAS 6721

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Position	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- to the vacuum hose.

Fig 3: Connecting Hose To Vacuum Hose And Push Adapter Into Brake Booster

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Push the adapter -C- into the brake booster.