Turbocharger Vacuum Diaphragm, Checking

Turbocharger Vacuum Diaphragm, Checking

Special tools, testers and auxiliary items required

• Hand Vacuum Pump (VAS 6213)

Procedure

• There must be flow through the hose from the turbocharger wastegate bypass regulator valve (N75) to the vacuum diaphragm.

• Wastegate bypass regulator valve OK.

- Remove the engine cover - arrows -.






- Connect the (VAS 6213) to the vacuum diaphragm - arrow -.






- Move the sliding ring - 1 - on the hand vacuum pump to the "Pressure" position - arrow B -.






The vacuum diaphragm could be damaged.

• The pressure must not exceed 850 mbar.

- Activate the hand vacuum pump several times and watch the linkage - A -.






• The linkage must move at approximately 300 mbar.

• The linkage must be at the end position at approximately 800 mbar.

• The linkage list is approximately 13 mm.

• If pressure cannot be generated with the hand vacuum pump or the pressure decreases again immediately, check the hand vacuum pump and connecting hoses for leaks.

• Replace the vacuum diaphragm if no malfunction is found, refer to => [ Turbocharger Vacuum Diaphragm ] Turbocharger Vacuum Diaphragm.