Camshaft, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Audi Q5, 2016 Audi Q5, 2015 Audi Q5, 2014 Audi Q5, and 2013 Audi Q5. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the front noise insulation, refer to OVERVIEW - NOISE INSULATION .

-- Perform a service position, refer to SERVICE POSITION, PERFORMING AND RESETTING .

Hybrid Vehicles

Fig 1: Identifying Crossmember -3- & Bolts

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-- Remove the bolts -1- and then remove the torque support from the crossmember -3-.

-- Free up the wires on the crossmember.

-- Remove the bolts -2- and the crossmember.

Continuation for All Vehicles:

NOTE:

The sealing surfaces of the lower cylinder head cover and on the upper cylinder head must not be reworked.

The camshaft bearings are integrated in the cylinder head or cylinder head cover. The tension must be released from the camshaft timing chain before removing the cylinder head cover.

If the cylinder head cover was removed, then the cover -item 20- Cap must be replaced (See Figure).

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

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

-- Remove the air filter housing, refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Remover the ignition coils with the power output stages IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .

-- Disconnect the connectors -arrows- from the Cam Adjustment Actuators --.

Fig 2: Cam Adjustment Actuators Harness Connectors

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-- Remove the cam adjustment actuators -arrows-.

Fig 3: Identifying Camshaft Adjuster Actuators

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-- Disconnect the crankcase ventilation hose -1-.

Fig 4: Locating Crankcase Ventilation Bolts

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-- Remove the bolts -arrows- and the crankcase ventilation.

-- Remove the crankcase ventilation hose -2- in direction of -arrow-.

Wiring Guide Version 1

Fig 5: Disconnecting Wire

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-- Disconnect the wire -arrows-.

-- Disconnect the connector -1- from the Camshaft Position Sensor -G40-.

Wiring Guide Version 2

Fig 6: Identifying Bolt And Connector

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-- Remove the bolt -1-. Then press the release buttons and disconnect the line -arrows-.

-- Disconnect the connector -2- on the Camshaft Position Sensor - G40-.

Coolant Hose Clamps Version 1

Fig 7: Camshaft Adjustment Valve 1 -N205-, Harness Connector

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-- Disconnect the connector from Camshaft Adjustment Valve 1 -N205- -1-.

-- Remove the bolts -arrows- and then the Camshaft Adjustment Valve 1 -N205-.

-- Remove the bolts -1 through 5- and the upper timing chain cover.

Fig 8: Identifying Upper Timing Chain Cover - Tightening Sequence

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Fig 9: Identifying Control Valve

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CAUTION:

The control valve has a left thread.

-- Remove the control valve with the Central Valve Assembly Tool T10352/1 in direction of -arrow-.

-- Remove the bolts -arrows- and remove the bearing bracket.

Fig 10: Bearing Bracket Bolts

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-- Rotate the vibration damper using the Counterhold - Vibration Damper T10355 into the "Top Dead Center (TDC)" position.

Fig 11: Identifying Markings -1- On Camshafts Aligned To Point Upward

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The notch on the vibration damper and the marking on the lower cover for timing chain must be opposite one another -arrow-.
The markings -1- on the camshafts must point upward.

Fig 12: Identifying Special Tool T40196 Installed Position

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CAUTION:

Danger of causing damage to the engine.

The Camshaft Pins T40196 may be installed only in the positions shown.

-- Install the Camshaft Pins T40196 as illustrated.

-- Turn the crankshaft two complete turns in the direction of engine rotation.

NOTE:

The engine be back at "TDC".

-- Remove the Camshaft Pins T40196.

-- Mark the camshaft timing chain and the cylinder head -arrows- to match the marking on the chain sprockets -1- with a waterproof marker.

Fig 13: Mark camshaft timing chain and the cylinder head

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-- In addition, mark the camshaft timing chain to the camshaft timing chain guide rail -2- with a permanent marker.

-- Remove the plug -arrow-.

Fig 14: Identifying Plug

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-- Remove the bolts -arrows-.

Fig 15: Identifying Bolts

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-- Remove the bolt -arrow-.

Fig 16: Identifying Bolt

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Two Different Chain Tensioners May Be Installed Depending On the Version:

Fig 17: Identifying Version 1

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Version 1

-- Install the Chain Tensioner Lever T40243 -arrows-.

-- Lift up the locking wedge for the chain tensioner by inserting a scriber or a suitable screwdriver into the chain tensioner opening in direction of -arrow 1-. Slowly press and hold the Chain Tensioner Lever T40243 in direction of -arrow 2-.

-- Secure the chain tensioner using the Locking Pin T40011.

Fig 18: Securing Chain Tensioner

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Version 2

Fig 19: Identifying Version 2

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-- Install the Chain Tensioner Lever T40243 -arrows-.

-- Press the chain tensioner locking ring -1- together and slowly press and hold the Chain Tensioner Lever T40243 in direction of -arrow-.

-- Secure the chain tensioner with the Tensioner Locking Tool T40267.

Fig 20: Securing Chain Tensioner

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All Versions

Fig 21: Removing/Installing Camshaft Lock T40271/2 To Cylinder Head (Intake Side)

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-- Remove the Chain Tensioner Lever T40243.

-- Bolt the Camshaft Lock T40271/2 to the cylinder head and push the chain sprocket splines in the direction of -arrow 2-. If necessary, turn the intake camshaft with a wrench in direction of -arrow 1-.

-- Remove the bolt -1- and guide the tensioning rail -2- downward.

Fig 22: Identifying Tensioning Rail Bolt

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-- Install the Camshaft Lock T40271/1 on the cylinder head.

Fig 23: Removing/Installing Camshaft Lock T40271 To Cylinder Head (Exhaust Side)

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-- Turn the exhaust camshaft with the wrench in the direction of -arrow 1- and slide the Camshaft Lock T40271/1 into the chain sprocket splines in direction of -arrow 2-.

NOTE:

Mark the camshafts to the Camshaft Lock 40271/1 and Camshaft Lock T40271/2.

Fig 24: Mark Camshaft Sprocket

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When using new camshafts: Transfer the self-made markings from the old camshaft to the new camshaft.

By not making the marks will result in much more work when reinstalling.

-- Mark the camshaft sprocket to the Camshaft Lock T40271/1 and the Camshaft Lock T40271/2 -arrow-.

-- Remove the upper guide rail -1- by unlocking the latch with a screwdriver and pushing the guide rail forward.

-- Remove camshaft timing chain from chain sprockets.

CAUTION:

Risk of damaging valves and piston crowns.

If the camshaft timing chain was removed from the cylinder head, then the crankshaft may not be turn further.

-- Turn the intake camshaft with a wrench in the direction of -arrow 1-, slide the Camshaft Lock T40271/2 out of the chain sprocket splines in direction of -arrow 2- and bring the camshaft into the rest position.

Fig 25: Turn Intake Camshaft With A Wrench In Direction Of Arrow

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-- Turn the exhaust camshaft with a wrench in the direction of -arrow 1-, slide the Camshaft Lock T40271/1 out of the chain sprocket splines in direction of -arrow 2- and bring the camshaft into the rest position.

Fig 26: Turn Exhaust Camshaft With A Wrench In Direction Of Arrow

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-- Remove the high pressure pump, refer to HIGH PRESSURE PUMP, REMOVING AND INSTALLING .

-- Remove the vacuum pump, refer to VACUUM PUMP, REMOVING AND INSTALLING .

-- Remove the cylinder head cover bolts in -1 to 6- sequence.

Fig 27: Cylinder Head Cover Bolt Loosening Sequence

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-- Remove the cylinder head cover.

-- Remove the camshafts.

CAUTION:

Risk of contaminating lubricating system and bearing.

Cover open parts of engine.