Camshaft Timing Chain, Removing And Installing: Removing

WARNING: This page is about a different car, the 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Risk of damaging valves and piston crowns.

Turn the crankshaft and camshafts only with the chain drive completely installed.

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

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CAUTION:

Danger of damaging the drive chain because the bolt thread is too long.

Only use bolts with a maximum 22 mm thread length -a- to attach the :T40049 .
If only longer bolts are available, then the bolt head must be installed in such a way so that thread length is still 22 mm only.

-- Secure the :T40049 on the rear side of the crankshaft -arrows-.

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CAUTION:

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

Only rotate the crankshaft in the direction of engine rotation.

NOTE:

The :T40060 has a flat part -2- which makes it easier to insert if the holes on the camshaft and the cylinder head are slightly offset.

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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.

-- Rotate the crankshaft to "TDC" :

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It must be possible to secure the camshafts with the :T40060 .
The bolt -arrow- in the :T40060 must be perpendicular to the center line of the camshaft on cylinder bank 1 (right).

The bolt -arrow- in the :T40060 must be perpendicular to the center line of the camshaft on cylinder bank 2 (left).

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

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-- Install the :T40237 in the hole and tighten to 20 Nm. Rotate the crankshaft -1- back and forth slightly to center the pin completely, if necessary.

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-- Push the tensioning track of chain tensioner for the camshaft timing chain in direction of -arrow- and secure the chain tensioner with the :T40316 -1-.

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-- Remove the guide pins -2- and remove the tensioning rail.

CAUTION:

If the running direction is reversed on a used camshaft timing chain, it could be damaged.

Paint arrows to mark the timing chain running direction so it can be installed again.

-- Remove the bolt -arrow- for the jump protector.

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-- Remove the :T40060 from both camshafts.

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-- Remove the bolts -arrows-.

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