Upper Intake Manifold: Removing

WARNING: This page is about a different car, the 2012 Audi Q5, 2011 Audi Q5, 2010 Audi Q5, and 2009 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

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

-- Remove front and rear engine covers.

-- Free up hose connection -1- to the Evaporative Emission (EVAP) canister.

Fig 1: Identifying Air Guide Hose Components

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

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

NOTE:

Ignore -4-.

-- Disconnect vacuum hose -2-.

Fig 2: Identifying Components Location - Rear Intake Manifold

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NOTE:

Disregard -arrow-.

Fig 3: Identifying Component And Connector Locations - Rear Intake Manifold

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1 - Evapoative Emission (EVAP) canister purge regulator valve 1 -N80-

2 - Secondary air injection (AIR) solenoid valve -N112- (installed only on vehicles with emissions standard ULEV 2)

3 - Intake Air Temperature (IAT) sensor -G42- /Manifold Absolute Pressure (MAP) sensor -G71-

4 - Auxiliary heater exhaust gas sensor -N422- (installed only on vehicles without an auxiliary heater)

5 - Secondary air injection (AIR) solenoid valve 2 -N320- (installed only on vehicles with emissions standard ULEV 2)

6 - Throttle valve control module -J338-

-- Remove EVAP canister purge regulator valve 1 -N80- from the bracket and lay it aside with the hose connected.

-- Disconnect front connectors on the intake manifold.

Fig 4: Checking Intake Manifold Tuning (IMT) Valve -N156- Terminals

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Intake Manifold Tuning (IMT) valve -N156-
IMT valve position sensor -G513-

-- Remove vacuum hose -arrow-.

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

Fig 5: Disconnecting Leak Detection Pump Vacuum Hose

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-- Free up vacuum hose -arrow-.

Fig 6: Disconnecting Electrical Harness Connectors

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-- Free up wiring harness.

-- Remove bolt -3-.

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

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

Fig 7: Identifying Bolts And Intake Manifold

Courtesy of AUDI OF AMERICA, LLC

NOTE:

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