Turbocharger, Installing, 2.9L Engine

Installing 

Install in reverse order of removal and note the following:

• When installing a new turbocharger compare the old and new components and if necessary reposition the attachments. Refer to OVERVIEW - TURBOCHARGER, 2.9L ENGINE .
• Replace the screw-type clamp and oil return line after removal.
• Replace seals, gaskets, O-rings and self-locking nuts after disassembly.
• Replacing the stud bolts.
• Fill the turbocharger with engine oil at the oil supply line connection.
• Secure all hose connections with hose clamps that match the ones used in series production. Refer to the Parts Information.
• Check the vacuum hoses for damage before the assembly and replace if necessary.
• Used coolant cannot be used again.

-- Bring the oil return line -1- in the installation position and secure using the clip -arrow-. (Shown for the turbocharger cylinder bank 1)

Courtesy of AUDI OF AMERICA, LLC

-- Bring the turbocharger into the installation position and at the same time guide the oil return line to the cylinder block.

-- Install the catalytic converter or catalytic converter with particulate filter. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING .

There may be additional procedures depending on the model. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Tighten the nuts -item  ) Part II - List Item: Nut and -item  ) Part II - List Item: Nut. This step is necessary to compensate for the shrinkage of the turbocharger compound.

-- Check the oil level. Refer to ENGINE OIL .

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

Tightening Specifications 

• Refer to OVERVIEW - TURBOCHARGER, 2.9L ENGINE