Supercharger, Checking For Leaks: Procedure

• Supercharger secured on the Engine and Gearbox Bracket:VAS6095A  for the leak test. Refer to SUPERCHARGER, SECURING TO ENGINE/TRANSMISSION HOLDER FOR REPAIR WORK .
• Regulating Flap Control Unit -J808- is installed. Refer to Regulating Flap 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.

-- 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 10:VAG1687/10  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 Kit:VAG1687  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-.

-- Connect the Turbo System Tester Kit:VAG1687  as shown to the compressed air -1- and to the Turbo System Tester Kit - Adapter 10:VAG1687/10  .

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-.

-- 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.

-- Close the valve -3- and observe the pressure gauge.

• 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 Tester:VAG1842S  .