Intake Manifold, Removing And Installing: Removing

WARNING: This page is about a different car, the 2015 Audi A7 Quattro and 2014 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Collect escaping fuel with a cloth.
Do not let any fuel get on components or gaskets near the engine. This could cause leaks and lead to further damage.
Danger of malfunction caused by dirt.
Observe, refer to CLEAN WORKING CONDITIONS .

-- Remove the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Free up the wiring harness and hoses on the wiring guide -1- using the Pry Lever 80-200.

-- Pull coolant hose back -arrow-.

Fig 1: Wire Guide, Clamps And Bolts

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-- Remove the bolts -2 and 3- and remove the wiring guide -1-.

-- Remove the bolts -1 and 2- and the clamp -3-.

Fig 2: Connectors, Check Valve & Bracket

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-- Remove the union nuts -arrows- and then remove the upper high pressure line.

-- Remove the connectors -1 and 2- and the check valve -3- from the bracket.

Fig 3: Connectors And Check Valve

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-- If applicable, remove the bolt -2- on the high pressure line clamp.

Fig 4: Locating Bolt

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NOTE:

Ignore item -1-.

-- Remove the bolt -1- on the right intake manifold bracket.

Fig 5: Bolt On The Right Intake Manifold Bracket

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NOTE:

Ignore item -2-.

-- Disconnect the connector -2- from the Cylinder Head Coolant Valve -N489- -1-.

Fig 6: Cylinder Head Coolant Valve And Connector

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-- Remove the bolts -arrows- and set the bracket with the Cylinder Head Coolant Valve -N489- to the side.

-- Disconnect the connector -arrow- from the Engine Coolant Temperature Sensor -G62-.

Fig 7: Connector -Arrow- From The Engine Coolant Temperature Sensor

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-- Disconnect the connectors -1 and 2- and move the wiring harness to the left.

Fig 8: Screw From Center Intake Manifold Bracket

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-- Remove screw -3- from center intake manifold bracket.

-- Remove the plug -3-.

Fig 9: Bolt -2- For The Oil Dipstick Guide Tube

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-- Remove the bolt -2- for the oil dipstick guide tube.

NOTE:

Ignore item -1-.

-- Loosen the screw clamp -2- on the Exhaust Gas Recirculation (EGR) pipe.

Fig 10: Exhaust Gas Recirculation (EGR) Pipe Bolts

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NOTE:

Ignore item -1-.

-- Remove the bolts on the left air guide pipe bracket -2-.

Fig 11: On The Left Air Guide Pipe Bracket

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NOTE:

Ignore item -1-.

-- Disconnect the connector -1- at the Throttle Valve Control Module -J338-.

Fig 12: Connector At The Throttle Valve Control Module, Screw Clamp & Air Guide Hose

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-- Loosen the screw clamp -3- and remove the air guide hose.

NOTE:

Ignore item -2-.

-- Disconnect the connectors from the glow plugs.

-- Remove the Fuel Pressure Sensor -G247-, refer to Removing .

-- Remove bolts -1 through 4- and -arrows- and remove intake manifold.

Fig 13: Intake Manifold - Tightening Sequence

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