Mechanical Damage

• Check the air filter housing, air filter element and air duct hoses for contamination.
• Check the entire charge air circuit and charge air cooler for foreign objects.
• If there are foreign objects in the charge air system, clean the charge air circuit and replace the charge air cooler if necessary.

Special tools and workshop equipment required 

• Socket:T10405 
  Fig 1: Identifying Socket T30

  Courtesy of AUDI

Removing

-- Follow the guidelines for clean working conditions. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .

Preliminary work may be required depending on the model. Refer to TURBOCHARGER, REMOVING AND INSTALLING .

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the right lower air duct pipe on the turbocharger. Refer to AIR DUCT PIPE, REMOVING AND INSTALLING .

Vehicle without particulate filter:

Courtesy of AUDI

-- Remove the right front muffler. Refer to FRONT MUFFLER, REMOVING AND INSTALLING .

-- Loosen the screw-type clamp -1- and move the right catalytic converter toward the rear.

Vehicles with a particulate filter:

-- Remove right particulate filter. Refer to PARTICULATE FILTER, REMOVING AND INSTALLING .

Continuation for All Vehicles:

Courtesy of AUDI

-- Remove the bolts -arrows- and then remove the retaining plate -3-.

-- Remove the coolant line -1-.

-- Remove the coolant line -2- and oil supply line -4-.

-- Remove the crankcase ventilation hose -1- by pressing the release buttons on both sides.

Courtesy of AUDI

-- Disconnect the connector -3-.

-- Remove the vacuum hose -2- at the same time to not damage it.

-- Loosen the screw-type clamp -arrow-.

Courtesy of AUDI

-- Remove the bolt -2-.

Courtesy of AUDI

-- Remove the turbocharger and at the same time remove the oil return connection -1-.