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Home >> Audi >> 2009 >> A4 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (3.2L - Fuel Injection System - Engine Code: CALA (Sedan)) >> 24 Fuel Injection System >> Removal And Installation >> Intake Manifold, Upper Section >> Removing

Intake Manifold, Upper Section: Removing

WARNING: This page is about a different variant/trim than selected.
NOTE:

During installation, all cable ties must be installed at the same location.

-- Remove the front and rear engine covers.

-- Free up the hose connection -1- to the EVAP canister.

Fig 1: Open Expanding Clamps
GWWA10-10839Courtesy of AUDI OF AMERICA, LLC

-- Remove the vacuum hose -2- from the air guide hose connection.

-- Remove the air guide hose by loosening the hose clamp -3- and opening the clips -arrows-.

NOTE:

Ignore -4-.

-- Disconnect the electrical connector -1- on EVAP emission canister purge regulator valve 1 -N80- and disconnect the vacuum hose -1-.

Fig 2: Disconnecting Electrical Connectors
GWWA10-10834Courtesy of AUDI OF AMERICA, LLC

-- Remove the EVAP emission canister purge regulator valve 1 from the bracket and lay it aside with the hose connected.

NOTE:

Disregard the -arrow-.

-- Disconnect electrical harness connectors.

Fig 3: Checking The Intake Manifold Tuning (Imt) Valve -N156- Terminals
GWWA24-10405Courtesy of AUDI OF AMERICA, LLC
  1. Intake Manifold Tuning (IMT) Valve -N156-
  2. Intake Manifold Tuning (IMT) Valve Position Sensor -G513-

-- Remove the vacuum hose -arrow-.

-- Disconnect vacuum hose -arrow- at leak detection pump.

Fig 4: Disconnecting Vacuum Hose To Leak Detection Pump
GWWA15-10107Courtesy of AUDI OF AMERICA, LLC

-- Disconnect electrical harness connectors.

Fig 5: Disconnecting Electrical Harness Connectors
GWWA24-10406Courtesy of AUDI OF AMERICA, LLC

1 - Throttle valve control module -J338-

4 - Intake air temperature (IAT) sensor -G42- /manifold absolute pressure (MAP) sensor -G71-

-- Free up the vacuum hose -arrow-.

-- Free up the wiring harness.

-- Remove bolt -3-.

-- Press the retaining tab -2- up slightly and disconnect the crankcase ventilation hose from the intake manifold.

-- Remove the bolts -arrows- and the upper section of the intake manifold.

Fig 6: Removing Bolts And Intake Manifold Upper-Part
GWWA15-10000Courtesy of AUDI OF AMERICA, LLC
NOTE:

Plug the intake ports of the cylinder head with clean rags.