Without Marks in the Cylinder Head Cover

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-- Mark the position of the camshaft sprocket -1- with a waterproof marker, as shown on the cylinder head cover -arrows-.

Continued for All Engines: 

-- Remove the lower timing chain cover. Refer to LOWER TIMING CHAIN COVER, REPLACING .

TIP: 

The control valves have left-hand thread.

-- Remove the left and right control valves using the Assembly Tool -1- in the direction of -arrow-.

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Depending on the version of the control valve use one of the listed tools:

• :T10352 
• :T10352/1 
• :T10352/2 
• :T10352/3 
• :T10352/4 

-- Remove the bolts -arrows- and bearing bracket.

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• Carefully remove the bearing bracket without tilting it.

-- Remove the bearing mount.

-- Remove the bolts -arrows-.

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-- Install the :T40243  -arrows-.

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-- Press the chain tensioner circlip -1- together and hold it.

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

-- Secure the chain tensioner with the :T40267  .

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-- Remove the :T40243  .

-- Bolt :T40271/2  to the cylinder head and slide into the splines on the chain sprocket in direction of -arrow 2-. Rotate the intake camshaft with :T40266  -1- in direction of -arrows- if necessary.

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

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• The help of a second technician is necessary for the following step.

-- Hold the exhaust camshaft with the :T40266  in direction of -arrow A-. Remove the bolt -1- and guide the tensioning rail -2- downward. Turn the camshaft further clockwise in direction of -arrow A- until the :T40271/1  can slide into the chain sprocket splines direction of -arrow B-.

-- Check the installation position -C- of the :T40271/1  .

-- Remove the guide rail -1- by unlocking the latch -arrow- with a screwdriver and pushing the guide rail forward.

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-- Mark the camshaft sprocket to the :T40271/1  and the :T40271/2  -arrow-.

-- If the camshafts are replaced, the markings need to be transferred onto the new camshafts.

Continued for All Engines: 

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-- Press the oil pump chain tensioner bracket in direction of -arrow- and lock with :T40011  .

-- Remove the bolt -1- and remove the chain tensioner.

-- Remove the bolts -1- and remove the camshaft timing chain glide rail -2-.

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-- Remove the camshaft timing chain from the camshaft sprockets and guide downward.

-- Install the :T10531/3  . The flat area -1- points upward toward the cylinder head when in the "TDC point".

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-- Install the :T10531/4  . Turn the crankshaft with a 32 mm open end wrench 90° counter-clockwise out of "TDC".

-- Use the :T40266  to turn the intake camshaft in direction of -arrow 1-, slide out the :T40271/2  from the chain sprocket splines in direction of -arrow 2- and bring the camshaft into the rest position.

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-- Use the :T40266  to turn the exhaust camshaft in direction of -arrow 1-, slide out the :T40271/1  from the chain sprocket splines in direction of -arrow 2- and bring the camshaft into the rest position.

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-- Remove the cylinder head cover bolts in -1 to 6- sequence.

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-- Pry up the cylinder head cover -2- using a tool for example a screwdriver -1- starting at the chain side.

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-- Remove the cylinder head cover.

-- Remove the camshaft and cover the open engine components.