Camshaft, Removing And Installing: Removing

WARNING: This page is about a different car, the 2016 Audi Q3 Quattro, 2016 Audi Q3, 2015 Audi Q3 Quattro, and 2015 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.

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 15- OVERVIEW - VALVETRAIN must be replaced.

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 .

-- Remove the upper timing chain cover. Refer to UPPER TIMING CHAIN COVER, REMOVING AND INSTALLING .

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

CAUTION:

The control valve has a left thread.

-- Remove the control valve using the :T10352/1 in the direction of -arrow-.

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-- Depending on the version, remove the control valve in the direction of the -arrow- using either the : T10352 or :T10352/1A .

-- Remove the bolts -arrows-.

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WARNING:

Risk of damaging the bearing bracket.

Carefully remove the bearing mount, without tilting.

-- Remove the bearing mount.

-- Remove the right wheel spoiler. Refer to Spoiler, Removing And Installing .

-- Remove the bolts -arrows-.

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-- Open the clamps -1 and 2- and remove the air guide pipe.

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

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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.

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

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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-.

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-- Remove the bolts -arrows-.

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-- Remove the bolt -arrow-, if equipped.

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Two Different Chain Tensioners may be Installed Depending on the Version

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Version 1

-- Install the :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 the direction of -arrow 1-. Slowly press and hold the :T40243 in direction of -arrow 2-.

-- Secure the chain tensioner using the :T40011 .

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Version 2

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-- Install the :T40243 -arrows-.

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

-- Secure the chain tensioner with the :T40267 .

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All Versions

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-- Remove the :T40243 .

-- Bolt the :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 the direction of -arrow 1-.

With Wrench Clearance

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-- Install the :T40271/1 on the cylinder head. Counterhold the camshaft with a wrench in a clockwise in the direction of -arrow-.

-- Remove the bolt -A- and slide the tensioning rail down. Continue counterholding the camshaft.

Without Wrench Clearance

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-- Install the :T40271/1 on the cylinder head.

A second technician is necessary for the following steps.

-- Hold the exhaust camshaft securely with the :T10172A in the direction of -arrow A-. Remove the bolt -1- and guide the tensioning rail -2- downward.

-- Turn the exhaust camshaft clockwise in direction of -arrow A- until the :T40271/1 can be pushed into the chain sprocket splines -C- in the direction of -arrow B-.

All Versions

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NOTE:

Mark the camshafts to the :T40271/1 and :T40271/2 .

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

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

-- Mark the camshaft sprocket to the :T40271/1 and the :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 :T40271/2 out of the chain sprocket splines in the direction of -arrow 2- and bring the camshaft into the rest position.

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With Wrench Clearance

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

Without Wrench Clearance

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-- Turn the exhaust camshaft with the :T10172 A slightly in direction of -arrow A- and push the :T40271/1 from the chain sprocket splines in the direction of -arrow B-.

All Versions

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-- Disconnect the crankcase ventilation hose -1-.

-- Remove the bolts -arrows- and then remove the crankcase ventilation from the hose -2- in the direction of -arrow-.

-- Disconnect the lines -1 and 3-.

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

-- 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.

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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.