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Home >> Audi >> 2014 >> RS 7 >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (Engine System (Cylinder Head & VALVETRAIN - Service Information - 4.0L - CEUC, CRDB, CTGE, CWUB, CWUC)) >> Cylinder Head, VALVETRAIN >> VALVETRAIN >> Camshaft, Removing And Installing >> Removing

Camshaft, Removing And Installing: Removing

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Audi S7, 2018 Audi RS 7, 2017 Audi S7, 2017 Audi RS 7, and 2016 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 pipe. 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-.

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-- Remove the :T40264/3  .

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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 :T40263  and :T40272  -arrow-.

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Cylinder Bank 1 (Right): 

NOTE:

Do not change the shape of the fuel line.

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

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

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

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-- Position the :T40269  onto the camshaft adjuster for the right exhaust camshaft and counterhold with a wrench -2-.

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-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the :T40264/1  , the exhaust camshaft must be secured from turning.

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

-- Remove the left bolt -left arrow- from the :T40264/1  .

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-- Release the wrench.

-- Position the :T40269  onto the camshaft adjuster for the left intake camshaft and counterhold with a wrench -2-.

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-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the :T40264/1  , the intake camshaft must be secured from turning.

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

-- Remove the right bolt -right arrow- from the :T40264/1  .

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-- Release the wrench.

-- Remove the :T40264/1  .

-- Remove the bolts -1 and 2- by counterholding with the wrench and the :T40269  . Remove the camshaft adjuster.

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Cylinder Bank 2 (Left) 

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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.

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NOTE:

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

Do not remove ball head -2-.

Ignore item -1-.

-- Remove the bolts -arrows- and press the 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 and 2-.

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-- Position the :T40269  onto the camshaft adjuster for the left intake camshaft and counterhold with a wrench -2-.

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-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the :T40264/2  , 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 :T40264/2  .

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-- Release the wrench.

-- Position the :T40269  onto the camshaft adjuster for the left exhaust camshaft and counterhold with a wrench -2-.

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-- Tighten the bolt -1- by hand.

NOTE:

To loosen the bolt for the :T40264/2  , 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 :T40264/2  .

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-- Release the wrench.

-- Remove the :T40264/2  .

-- Remove the bolts -1 and 2- by counterholding with the wrench and the :T40269  . Remove the camshaft adjuster.

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Continuation for Both Cylinder Banks: 

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-- Loosen and remove the bolts in the following sequence: -21 to 1-.

-- Carefully loosen the camshaft housing from the bonding, for this turn the M6x30 bolts evenly in the threaded holes -arrows-.

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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.