Turbocharger Vacuum Diaphragm, Checking: Procedure

-- 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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• 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 .