Camshaft, Removing And Installing: Removing

WARNING: This page is about a different car, the 2015 Audi S7, 2015 Audi RS 7, 2014 Audi S7, 2014 Audi RS 7, and 2013 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the affected ignition coils, refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .

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

-- Remove the affected high pressure line, refer to HIGH PRESSURE PIPE, REMOVING AND INSTALLING .

-- Remove the affected camshaft timing chain from camshafts, refer to CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS .

-- Remove the noise insulation -arrow-.

Fig 1: Removing Noise Insulation

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-- Remove the Camshaft Locating ToolT40264/3.

Fig 2: Identifying Camshaft Locating ToolT40264/3

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Fig 3: Turning Crankshaft 40°

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CAUTION:

Risk of damaging valves and piston crowns.

In the course of the following steps, the crankshaft must not stand with any piston at "TDC".

-- Turn the crankshaft 40° opposite engine rotation out of the "TDC" position using the Wrench - 21mm T40263 and Crankshaft Turning ToolT40272 -arrow-.

Cylinder Bank 1 (Right):

-- Remove the right coolant pipe, refer to RIGHT COOLANT PIPE, REMOVING AND INSTALLING .

-- Remove the bolts -arrows- and press the fuel line -1- forward.

NOTE:

Do not change the shape of the fuel line.

Fig 4: Removing Bolts -Arrows- And Pressing Fuel Line -1- Forward

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-- Disconnect the connectors -1 and 2- and free up the wiring harness.

Fig 5: Disconnecting Connectors -1 And 2- And Free Up Wiring Harness

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-- Attach both of the camshaft adjusters without camshaft timing chains to the cylinder head and then loosely screw on the bolts -1, 2-.

Fig 6: Attaching Both Camshaft Adjusters Without Camshaft Timing Chains To Cylinder Head And Loosely Screw On Bolts -1, 2-

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-- Position the Wrench - CamshaftT40269 onto the camshaft adjuster for the right exhaust camshaft and counterhold with a wrench -2-.

-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the Camshaft Locating ToolT40264/1, the exhaust camshaft must be secured from turning.

-- Hold the exhaust camshaft in position with the wrench.

Fig 7: Positioning Wrench - CamshaftT40269 Onto Camshaft Adjuster For Right Exhaust Camshaft And Counterhold With Wrench -2-

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-- Remove the left bolt -left arrow- from the Camshaft Locating ToolT40264/1.

Fig 8: Removing Left Bolt -Left Arrow- From Camshaft Locating ToolT40264/1

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-- Release the wrench.

When doing this, the exhaust camshaft turns to the right one turn.

-- Position the Wrench - CamshaftT40269 onto the camshaft adjuster for the left intake camshaft and counterhold with a wrench -2-.

-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the Camshaft Locating ToolT40264/1, the intake camshaft must be secured from turning.

-- Hold the intake camshaft in position with the wrench.

Fig 9: Positioning Wrench - CamshaftT40269 Onto Camshaft Adjuster For Left Intake Camshaft And Counterhold With Wrench -2-

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-- Remove the right bolt -right arrow- from the Camshaft Locating Tool T40264/1.

Fig 10: Removing Right Bolt -Right Arrow- From Camshaft Locating Tool T40264/1

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-- Release the wrench.

When doing this, the intake camshaft turns to the right one turn.

-- Remove the Camshaft Locating ToolT40264/1.

-- Remove the bolts -1 and 2- by counterholding with the wrench and the Wrench - CamshaftT40269. Remove the camshaft adjuster.

Fig 11: Removing Bolts -1 And 2

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Cylinder Bank 2 (Left):

Fig 12: Identifying Exhaust Camshaft Adjustment Valve 1 -N318- And Camshaft Adjustment Valve 2 -N208-

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-- Disconnect the connectors:

3 - for Exhaust Camshaft Adjustment Valve 1 -N318-

4 - for Camshaft Adjustment Valve 2 -N208-

-- Move the electrical wiring harness to the side.

NOTE:

Ignore -items 1 and 2-.

-- Remove the bolts -arrows- and move the adjusting element vacuum pipe to the side.

Fig 13: Removing Bolts -Arrows- And Move Adjusting Element Vacuum Pipe To Side

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NOTE:

The illustration shows the Installed position on an Audi S6/S7.

Do not remove ball head item -2-.

Ignore item -1-.

-- Remove the bolts -arrows- and press the fuel line forward.

Fig 14: Removing Bolts -Arrows- And Press Fuel Line Forward

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NOTE:

Do not change the shape of the fuel line.

-- Attach both of the camshaft adjusters without camshaft timing chains to the cylinder head and then loosely screw on the bolts -1, 2-.

Fig 15: Removing Bolts -1 And 2- By Counterholding With Wrench And Wrench - CamshaftT40269

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-- Position the Wrench - CamshaftT40269 onto the camshaft adjuster for the left intake camshaft and counterhold with a wrench -2-.

Fig 16: Positioning Wrench - CamshaftT40269 Onto Camshaft Adjuster For Left Intake Camshaft And Counterhold With Wrench -2-

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-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the Camshaft Locating ToolT40264/2, the intake camshaft must be secured from turning.

-- Hold the intake camshaft in position with the wrench.

-- Remove the left bolt -left arrow- from the Camshaft Locating ToolT40264/2.

Fig 17: Removing Left Bolt -Left Arrow- From Camshaft Locating Toolt40264/2

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-- Release the wrench.

When doing this, the intake camshaft turns to the right one turn.

-- Position the Wrench - CamshaftT40269 onto the camshaft adjuster for the left exhaust camshaft and counterhold with a wrench -2-.

Fig 18: Positioning Wrench - CamshaftT40269 Onto Camshaft Adjuster For Left Exhaust Camshaft And Counterhold With Wrench -2-

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-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the Camshaft Locating ToolT40264/2, the exhaust camshaft must be secured from turning.

-- Hold the exhaust camshaft in position with the wrench.

-- Remove the right bolt -right arrow- from the Camshaft Locating ToolT40264/2.

Fig 19: Removing Right Bolt -Right Arrow- From Camshaft Locating Toolt40264/2

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-- Release the wrench.

When doing this, the exhaust camshaft turns to the right one turn.

-- Remove the Camshaft Locating ToolT40264/2.

-- Remove the bolts -1 and 2- by counterholding with the wrench and the Wrench - CamshaftT40269. Remove the camshaft adjuster.

Fig 20: Removing Bolts -1 And 2- By Counterholding With Wrench And Wrench - CamshaftT40269

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Continuation for Both Cylinder Banks:

Fig 21: Identifying Cylinder Head Banks Bolts In Sequence

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-- Loosen and remove the bolts in the following sequence: -22 to 1-.

NOTE:

The left camshaft housing is shown in the illustration.

Proceed in the same way with right camshaft housing.

-- Screw in the M6x30 bolts evenly into the threaded openings -arrows- to carefully loosen the camshaft housing out of the bonding.

NOTE:

The left camshaft housing is shown in the illustration.

Proceed in the same way with right camshaft housing.

-- Mark the assignment of the camshafts for installation later.

-- Remove the camshafts and place them on a clean surface.

Fig 22: Locating Bolts

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