Turbocharger Vacuum Diaphragm, Checking: Procedure

WARNING: This page is about a different car, the 2018 Audi Q3 Quattro, 2018 Audi Q3, 2017 Audi Q3 Quattro, and 2017 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Engine with oil separator on the cylinder head cover, version 2: remove the oil separator. Refer to OIL SEPARATOR, REMOVING AND INSTALLING, ON CYLINDER HEAD COVER, VERSION 2 .

-- Connect the :VAS6213 to the vacuum diaphragm -arrow-.

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-- Set the slide ring -1- on the :VAS6213 in position -B- for "pressure".

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CAUTION:

- Never set the test pressure specified.

The pressure must not exceed 750 mbar (10.88 psi).

-- Operate the :VAS6213 several times; watch the linkage while doing this.

The linkage -A- must move approximately 300 mbar (4.35 psi) and be at approximately 700 mbar (10.15 psi) at the end position.

The linkage stroke is approximately 10 mm.

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TIP:

If pressure cannot be raised using the :VAS6213 or pressure drops immediately, check the :VAS6213 and connecting hoses for leaks.

If no error can be found:

-- Turbocharger with vacuum diaphragm that can be replaced separately. Refer to parts information : replace the vacuum diaphragm. Refer to TURBOCHARGER VACUUM DIAPHRAGM, REPLACING .

-- Turbocharger and vacuum diaphragm in unit: replace the turbocharger. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Engine with oil separator on the cylinder head cover, version 2: install the oil separator. Refer to OIL SEPARATOR, REMOVING AND INSTALLING, ON CYLINDER HEAD COVER, VERSION 2 .

-- Install the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .