Plenum Chamber Bulkhead, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Audi S6, 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi S6, and 2017 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

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

-- Releases the retainer -arrow A- and open the cover -arrow B-.

GWWA10-11368

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-- Remove the nut -3- and free up the wire.

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-- Remove the connector -1- from the bracket.

-- Remove the nuts -arrows- and then remove Terminal 30 Wire Junction 2 -TV22- from the plenum chamber bulkhead.

-- Free up the wiring harness on the plenum chamber bulkhead.

Vehicles with a Gasoline Engine:

GWWA50-10158

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-- Cover the area under the shut-off valve with an absorbent cloth or paper.

-- Clamp off the coolant hoses -1 and 3- with :3094 .

-- Open the clamps and remove the coolant hose -2- from the shut-off valve.

-- Remove the grommet -4- on the plenum chamber bulkhead to the engine.

NOTE:

A Vehicle With A Parking Heater Is Shown In The Illustration.

Continuation for All Vehicles:

GWWA10-11719

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-- Remove the heat shield -1- upward -arrow-, if equipped.

-- Release the retainers -A arrows- and remove the cable grommet -1- upward -arrow B-.

GWWA10-11374

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-- Remove the bolt -arrow-.

GWWA50-10649

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NOTE:

Different types of fasteners may be installed. There can be a cable bracket, clip or bolt.

-- Remove the brake booster vacuum line -3-.

GWWA50-10159

Courtesy of AUDI OF AMERICA, LLC

-- Remove the grommet -1- from the vacuum connection.

-- Remove the nut -2- and then remove the plenum chamber bulkhead -4- upward.