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Home >> Audi >> 2021 >> S5 Premium Plus, 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Turbocharger, Supercharger [CWGD,DECA] [Cabriolet] >> 21 Turbocharger, Supercharger >> Charge Air System >> Air Duct Pipe, Removing And Installing >> Air Duct Pipe, Removing And Installing, With Radiator Removed 2.9L Engine >> Installing

Air Duct Pipe, Removing And Installing, With Radiator Removed 2.9L Engine: Installing

Install in reverse order of removal and note the following:

-- Install the oil filter element. Refer to ENGINE OIL FILTER, REPLACING

-- Install the air filter housing. Refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Install the ribbed belt. Refer to RIBBED BELT, REMOVING AND INSTALLING .

-- Loosen the hose clamps -arrows- and remove the air duct hose -1-.

GWWA24-11798Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector and free up the wiring harness.

GWWA21-11248Courtesy of AUDI OF AMERICA, LLC
  1. For Charge Air Cooler Temperature Sensor 2 -G764-
  2. For Charge Air Cooler Temperature Sensor 1 -G763-

-- Remove the oil filter element. Refer to ENGINE OIL FILTER, REPLACING

-- Remove the bolts -arrows-.

GWWA21-11249Courtesy of AUDI OF AMERICA, LLC

-- Remove the crankcase ventilation hose -2- by pressing the release buttons on both sides.

-- Move the air duct pipe -1- to the side.

-- Free up the coolant line -2-.

GWWA21-11222Courtesy of AUDI OF AMERICA, LLC

Vehicles with Version 1 Charge Air System:

-- Loosen the hose clamps -1 and 3- and remove the air duct hose.

Vehicles with Version 2 Charge Air System:

GWWA21-11567Courtesy of AUDI OF AMERICA, LLC

-- Remove the left front wheel. Refer to the appropriate service information .

-- Remove the left air intake grille. Refer to Front Bumper .

-- Remove the left air guide. Refer to Overview - Lock Carrier .

-- Disconnect the connector -2- for the Charge Air Pressure Sensor -G31-.

-- Loosen the hose clamps -arrows- and remove the air duct pipe -1-.

Continuation for All Vehicles:

GWWA21-11250Courtesy of AUDI OF AMERICA, LLC

-- Free up the wiring harness.

GWWA24-11724Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

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

-- Disconnect the connector and free up the wiring harness -2-.

GWWA21-11132Courtesy of AUDI OF AMERICA, LLC

4 -

For Manifold Absolute Pressure Sensor -G71-

5 -

For the Throttle Valve Control Module -GX3-

-- Remove the vacuum hose -6- and hose -3- for the crankcase ventilation to do so press the release buttons on both sides.

-- Remove the bolts -arrows-.

-- Pivot the air duct pipe -1- carefully to the left side and remove.

Installing 

Install in reverse order of removal and note the following:

-- Install the oil filter element. Refer to ENGINE OIL FILTER, REPLACING