Cylinder Head, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2017 Audi A5 Quattro, 2016 Audi A5 Quattro, 2015 Audi A5 Quattro, 2014 Audi A5 Quattro, and 2014 Audi A5. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .

CAUTION:

Risk Of Damaging Valves And Piston Crowns.

Do not turn the crankshaft if the camshaft has been removed.

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the front exhaust pipe/front muffler. Refer to FRONT EXHAUST PIPE, REMOVING AND INSTALLING .

-- Remove the plenum chamber cover. Refer to PLENUM CHAMBER COVER, REMOVING AND INSTALLING .

-- Disconnect the vacuum connection -2- from the plenum chamber bulkhead by remove the vacuum hose -3- on the back side in direction of -arrow-.

Fig 1: Disconnect Vacuum Connection

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-- Remove the coolant hoses from behind the cylinder head.

-- Loosen the hose clamps -arrows- and remove the air duct hose.

Fig 2: Air Intake Hose Components

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-- Disconnect the following connectors.

Fig 3: Connector Locations

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2 - Disconnect from the Knock Sensor 1 -G61- and free up.

3 - From the Intake Manifold Runner Control Valve -N316-, Fuel Pressure Sensor -G247- and Camshaft Position Sensor -G40-.

4 - From the fuel injectors

5 - From the Throttle Valve Control Module -J338-.

6 - From the Intake Air Temperature Sensor -G42-.

-- Disconnect the connector -2- and free up the wire.

Fig 4: Generator Electrical Connector And Terminal B+

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-- Remove the nuts -arrows- and push the catalytic converter to the rear.

Fig 5: Identifying Catalytic Converter Flange Nuts

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All additional procedures are described. Refer to CYLINDER HEAD .