Turbocharger: Testing and Inspection

Turbocharger

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For all Turbocharger, G-Charger component locations. Refer to Engine Mechanical Repair Information

For all Turbocharger, G-Charger system removal/installation procedures and torque specifications. Refer to Engine Mechanical Repair Information.

Check the Technical Bulletins for information that may supersede any information included in this service information.

• All manufacturers special tools as well as common tools may contain a manufacturer specific part number. These tools may be substituted with an equivalent aftermarket tool or are available for purchase through Audi.

• Manufacturers special tools as well as common tools that contain a manufacturer specific part number may be referenced in the test procedure illustrations showing the tool use or installation. If the manufacturer specific tool is not being used, an equivalent aftermarket tool may be installed in the same manner as the manufacturers special tool.

• The manufacturers test box Test Box 105 Pin (VAG1598/42 ) is available for purchase or rental.

General Notes

• Charge air system must be properly sealed. Refer to Engine Mechanical Repair Information.

• Always replace self-locking nuts.

• Charge air hoses and pipes as well as their connections must be free of oil and grease before re-installing.

• Do not assemble charge air hoses and lines with lubricants containing oils, only coat with water (without additives) if necessary.

• Note installation marks on hoses and components.

• All hose connections for charge air system are secured by spring-type clamps or by connector couplings.

• Install only approved clamps for securing hose connections

• Pliers for spring clamps (VAS 5024 A) or Hose clamp pliers (V.A.G 1921) are recommended for installing spring clamps.

• For connector couplings, always note the following points:

- Disengage connector coupling by pulling securing clip - arrow -.





- Disconnect hose and pipe without the assistance of tools.

- When assembling, make sure retaining tabs - A - are engaged securely.

• Before screwing on oil supply line, fill turbocharger with engine oil at filler tube.

• After installing turbocharger, let engine idle for approx. 1 minute without increasing engine speed. This ensures adequate oil supply to the turbocharger.