Camshaft Timing Chain, Removing From Camshafts: Removing

WARNING: This page is about a different car, the 2015 Audi Q7, 2014 Audi Q7, and 2013 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Engine and transmission installed.

NOTE:

If working only on cylinder head bank 1 (right), the timing chain guard must not be removed from the cylinder head bank 2 (left).

-- Remove the upper timing chain covers. Refer to TIMING CHAIN GUARD UPPER SECTION, REMOVING AND INSTALLING .

-- Join the tools as illustrated.

Fig 1: Crankshaft Turning Tool, Wrench - 21 MM And Adapter

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Socket 21 mm for ¹ /₂ "-drive

Fig 2: Identifying Wrench - 21 MM T40263

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CAUTION:

Components could be damaged by the camshaft timing chain jumping off.

Turn crankshaft only in direction of engine rotation -arrow-.

-- Turn the crankshaft until the vibration damper is at "Top Dead Center (TDC)".

Fig 3: Identifying Vertical Mark -Arrow- On Center Of Crankshaft

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The attached marking -arrow- stands vertically upward.

NOTE:

The Camshaft Adjustment PinsT40060 has a flat part -2- which makes it easier to insert if the holes on the camshaft and the cylinder head are slightly offset.

Fig 4: Identifying Adjustment Pin T40060

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Insert the pin so that the bolt -1- is perpendicular to the camshaft axle.

Move the bolt -1- 90° -arrow- so that it is perpendicular to the camshaft axle and it is possible to attain the correct "TDC" position.

-- Check whether camshafts of both cylinder heads stand in "TDC" position.

Fig 5: Identifying Bolt In Camshaft Adjustment Pins T40060

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It must be possible to secure the camshafts with the Camshaft Adjustment PinsT40060.
The bolt -arrow- in the Camshaft Adjustment PinsT40060 must be perpendicular to the center line of the camshaft on cylinder bank 1 (right).

The bolt -arrow- in the Camshaft Adjustment PinsT40060 must be perpendicular to the center line of the camshaft on cylinder bank 2 (left).

Fig 6: Identifying Bolt In Camshaft Adjustment Pins T40060
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NOTE:

To collect escaping engine oil, place a clean cloth under the upper section of the oil pan.

Fig 7: Sealing Plug Location

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-- Remove the sealing plug -arrow- from the upper section of the oil pan.

-- Install the Crankshaft Holder3242 in the hole and tighten to 20 Nm. Rotate the crankshaft back and forth slightly to center the pin completely, if necessary.

Fig 8: Identifying Crankshaft Holder 3242

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-- Secure the Chain Tensioner Mounting BracketT40246 as shown in the illustration.

Fig 9: Identifying Bolts

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Step	Bolts	Tightening Specification
1.	-2- M6x40	Install all the way in by hand.
2.	-1- M6x20	Install all the way in by hand.
3.	-2- M6x40	8 Nm
4.	-1- M6x20	8 Nm

CAUTION:

There is a risk of destroying the engine.

To prevent small parts from accidentally entering the engine through the openings in the timing chain compartment, cover the opening with a clean cloth.

-- Remove the Camshaft Adjustment PinsT40060 from both camshafts.

-- Remove the bolts -arrows-.

Fig 10: Camshaft Sprocket Bolts (Left Cylinder Head)

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-- Remove the bolts -arrows-.

Fig 11: Identifying Bolts

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-- Remove the camshaft sprockets and the camshaft timing chain.