Supercharger, Checking For Leaks

Special tools and workshop equipment required

Turbo System Tester KitVAG1687 with Turbo System Tester Kit - Adapter 10VAG1687/10, Turbo System Tester Kit - Adapter 13-1 VAG1687/13-1, Turbo System Tester Kit - Adapter 13-2 VAG1687/13-2 and Turbo System Tester Kit - Adapter 13-3 VAG1687/13-3

Procedure

Secure the supercharger for the leak test on the Engine And Transmission HolderVAS6095, 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 Turbo System Tester Kit - Adapter 13-1 VAG1687/13-1 on the bottom of the supercharger housing.

Fig 1: Attaching V.A.G 1687/13-1 To Bottom Of Supercharger

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-- Secure the hose connections with hose clamps.

NOTE:

The supercharger is illustrated without the transmission holder.

-- Secure the Turbo System Tester Kit - Adapter 13-3 VAG1687/13-3 on the top of the supercharger housing.

Fig 2: Attaching V.A.G 1687/13-3 To Top Of Supercharger

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-- Secure the hose connections with hose clamps.

-- Secure the Turbo System Tester Kit - Adapter 13-2 VAG1687/13-2 with Turbo System Tester Kit - Adapter 10VAG1687/10 to the supercharger housing.

Fig 3: Attaching V.A.G 1687/13-2 And V.A.G 1687/10 To Supercharger

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-- Secure the hose connections with hose clamps.

Prepare the Turbo System Tester KitVAG1687 as follows:

Fig 4: Connecting Pressurized Air Hose To Testing Unit For Turbo Charger V.A.G 1687

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-- 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 Turbo System Tester KitVAG1687 as illustrated, to the compressed air using a commercially available intermediate piece -1-.

Fig 5: Connecting V.A.G 1687 To Compressed Air Using Commercially Available Intermediate Piece -1-

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

Fig 6: Connecting Pressurized Air Hose To Testing Unit For Turbo Charger V.A.G 1687

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-- Open the valve -3-.

CAUTION:

Damage could result if the pressure is set too high.

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 (7.2 psi) bar 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 Ultrasonic TesterVAG1842S.

NOTE:

For information on using the Ultrasonic Tester VAG1842S, refer to the Owner's Manual.

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