Left Combination Valve, Removing And Installing: Removing

WARNING: This page is about a different car, the 2018 Audi A6 Quattro, 2017 Audi A6 Quattro, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

During Installation, All Cable Ties Must Be Installed At The Same Location.

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

-- Remove the tower brace. Refer to TOWER BRACE, REMOVING AND INSTALLING .

-- Remove the left front wheel housing liner. Refer to FRONT WHEEL HOUSING LINER, REMOVING AND INSTALLING .

-- Remove the bolts -arrows- and the left heat shield -1-.

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CAUTION:

Danger Of Causing Damage To Electronic Components.

Observe the steps for disconnecting the battery.

-- Switch the ignition off and remove the ignition key.

-- Disconnect the Ground (GND) Cable From The Battery Terminal. Refer to BATTERY, DISCONNECTING AND CONNECTING .

-- Free up the Oxygen Sensor 2 after Catalytic Converter -G131- wire.

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-- Remove the screw -1- and nuts -arrows-. Then remove the left catalytic converter from the exhaust manifold.

-- Remove the bolts -arrows-, pull the filler tube -1- out of the windshield washer fluid reservoir and out of the opening in the body and move it to the right.

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-- Remove the cap nut -2- and free up the GND cable.

-- Open the retainer in direction of -arrow- and remove the Engine Control Module -J623- -1- from the bracket and move it to the side.

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-- Remove the bolts -arrows- and the cover -1- from the plenum chamber E-box.

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-- Disconnect the connectors -1- and remove the nut -2- for the wire.

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-- Release the retainers -arrows- and remove the relay carrier with the fuse panel -3-.

-- Disengage the engine wiring harness from the plenum chamber E-box and free it up.

-- Release the retainers in direction of -A arrows- and remove the wiring bushing -1- upward in direction of -arrow B-.

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-- Free up the wiring harness and push it to the side.

-- Remove the bolts -arrows- and the heat shield -1-.

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-- Remove the bolts -3- for the secondary air hose.

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-- Remove the vacuum line -2- from the AIR combination valve.

-- Remove the bolts -1- and remove the AIR combination valve.