Supercharger, Checking For Leaks

WARNING: This page is about a different car, the 2018 Audi A6 Quattro, 2017 Audi A6 Quattro, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Turbo System Tester Kit : VAG1687 Turbo System Tester Kit Adapter 4 : VAG1687/4 , Turbo System Tester Kit - Adapter 10 :VAG1687/10 , Turbo System Tester Kit - Adapter 13-1:VAG1687/13-1 and Turbo System Tester Kit - Adapter 13-2 :VAG1687/13-2

Supercharger secured on the :VAS6095A for the leak test. Refer to SUPERCHARGER, SECURING TO ENGINE/TRANSMISSION HOLDER FOR REPAIR WORK .
Control Valve Control Unit -J808- is installed. Refer to Control Valve Control Unit -J808-, REMOVING AND INSTALLING .

-- Secure the :VAG1687/13-1 on the bottom of the supercharger housing.

GWWA21-10844

Courtesy of AUDI OF AMERICA, LLC

-- Secure the hose connections with hose clamps.

NOTE:

The supercharger is illustrated without the transmission holder.

-- Secure the :VAG1687/13-4 on the top of the supercharger housing.

GWWA21-10845

Courtesy of AUDI OF AMERICA, LLC

-- Secure the hose connections with hose clamps.

-- Secure the :VAG1687/13-2 with :VAG1687/10 to the supercharger housing.

GWWA21-10846

Courtesy of AUDI OF AMERICA, LLC

-- Secure the hose connections with hose clamps.

Prepare the :VAG1687 as follows:

GWWV21-0168

Courtesy of AUDI OF AMERICA, LLC

-- Completely remove the pressure regulating valve -2- and close the valves -3 and 4-.

Pull the knob in order to rotate the pressure regulating valve.

-- Connect the :VAG1687 as illustrated, to the compressed air using a commercially available intermediate piece -1-.

GWWA21-10847

Courtesy of AUDI OF AMERICA, LLC

-- If there is water in the viewing glass, open the water drain plug -6- and drain the water.

GWWV21-0168

Courtesy of AUDI OF AMERICA, LLC

-- Open the valve -3-.

CAUTION:

Damage could result if the pressure is set too high.

The pressure must not exceed 0.5 bar (7.2 psi)!

-- Set the pressure to 0.5 bar (7.2 psi) using the pressure control valve -2-.

-- Open the valve -4- and wait until the test circuit is filled. Regulate the pressure to 0.5 bar (7.2 psi) again if necessary.

-- Closes the valve -3-.

The drop in pressure must not exceed 0.1 bar (1.45 psi) in 30 seconds.

-- Inspect the charge air system for poorly sealed areas by listening, feeling, using commercially available leak detection spray or by using the :VAG1842S .

NOTE:

Refer to the Owner's Manual for information on using the :VAG1842S .

Release the pressure in the test circuit by pulling off the hose coupling before removing the adapter.