Turbocharger Vacuum Diaphragm, Replacing: Installing

Use new bolts and new locking rings from the repair kit.

Version 1

-- Engage the control rod in the adjustment lever, install the vacuum diaphragm and install the bolts -1- all the way by hand.

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-- Install circlip -4-.

-- Connect the connector -3- on the Charge Pressure Actuator Position Sensor -G581-.

VERSION 2 

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-- Engage the control rod in the adjustment lever, install the vacuum diaphragm and install the bolts -3- all the way by hand.

-- Install circlip -4-.

-- Connect the connector -2- on the Charge Pressure Actuator Position Sensor -G581-.

For All Versions

Checking the Vacuum Diaphragm Adjustment 

-- Use a Vehicle Diagnostic Tester.

-- In the OBD  select under measured values Turbine Actuator 1 Bank 1, Raw Tension Location Response  .

-- Set the slide ring -1- on the :VAS6213  in position -A- for "vacuum".

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

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VERSION 1 

-- Run the : VAS6213  until the pressure gauge shows a vacuum between --650 mbar to -700 mbar (-9.42 psi to -10.15 psi).

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-- Push the vacuum diaphragm -arrow- until the measured values  are reached in the display field.

• Specified value: 0.75 ± 0.05 Volt

-- Tighten the bolts -1- to 10 Nm.

-- Slide the slider ring -1- on the :VAS6213  in the position -B- to vent the vacuum diaphragm until it reaches ambient temperature.

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VERSION 2 

-- Run the : VAS6213  until the pressure gauge shows a vacuum between -650 mbar to -700 mbar (-9.42 psi to -10.15 psi).

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-- Push the vacuum diaphragm -arrow- until the measured values  are reached in the display field.

• Specified value: 0.75 ± 0.05 Volt

-- Tighten the bolts -1- to 10 Nm.

-- Adjust slide ring -1- on the :VAS6213  to the -B- position, to bleed the vacuum diaphragm of ambient pressure.

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Performing the Adaptation

-- Change in Guided Functions  and select the 01 - Electric Adaptation Actuator with Feedback  in the list.

-- Perform the adaptation

Check the Voltage Value Again after the Adaptation

-- Switch to OBD  and select under measured values Turbine Actuator 1 Bank 1, Raw Tension Location Reponse  .

-- Set the slide ring -1- on the :VAS6213  in position -A- for "vacuum".

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-- Run the : VAS6213  until the pressure gauge shows a vacuum between -650 mbar to -700 mbar (-9.42 psi to -10.15 psi).

-- In the display field measured values  a voltage value of 0.75 ± 0.02 Volt must be displayed.

Voltage Value Not OK.

The illustration shows version 1.

-- Loosen the bolts -1-.

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-- Adjust the voltage value again. Refer to INSTALLING .

Voltage Value OK.

-- Tighten the bolts to 10 Nm and seal with sealing wax.

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

-- Delete the DTC memory using the Vehicle Diagnostic Tester.