Camshaft Timing Chain, Removing And Installing, Engine Codes CHHB, CNTA, CXCA, CXDA, CXCB, CXDB And DKFA: Removing

-- Support the engine in the installation position. Refer to ENGINE, SUPPORTING IN INSTALLED POSITION .

-- Remove the engine mount. Refer to ENGINE MOUNT, REMOVING AND INSTALLING .

-- Remove the engine support. Refer to ENGINE SUPPORT, REMOVING AND INSTALLING .

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

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Remove the right wheel housing liner front section. Refer to FRONT WHEEL HOUSING LINER, REMOVING AND INSTALLING .

-- Turn the vibration damper with the Counterhold - Vibration Damper: T10355  to the "TDC point".

Fig 1: Identifying Vibration Damper With Counterhold - Vibration Damper T10355

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• The markings -1- on the camshaft chain sprockets must be opposite the markings -2 and 3-.
• The notch on the vibration damper and the marking on the lower timing chain cover -arrow- must be align.

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

-- Remove the left and right control valve using the : T10352/2  or : T10352/4  in direction of -arrow-.

Fig 2: Identifying Assembly Tool T10352/2

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

Fig 3: Identifying Bolts

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-- Remove the bolts -arrows-.

Fig 4: Identifying Bolts

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-- Install the : T40243  -arrows-.

Fig 5: Identifying Lever T40243 -Arrows-, Installation

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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  .

Fig 6: Securing Chain Tensioner With T40267

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-- Remove the : T40243  .

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

Fig 7: Identifying Camshaft Clamp T40271/2 And Assembly Tool T40266

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

Fig 8: Checking T40271/1 Installation Position

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

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

-- Remove the guide rail -1-. To do so, release the retainer -arrow- with a screwdriver and push the guide rail off toward the front.

Fig 9: Removing Guide Rail

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-- Remove the bolts -arrows- and remove the chain tensioner -1-.

Fig 10: Bolts And Chain Tensioner

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

Fig 11: Identifying Locking Pin T40011

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

-- Remove the bolts -1- and remove the guide rail -2-.

Fig 12: Removing Glide Rail

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-- Remove the camshaft timing chain from the camshaft sprockets and hang it on the camshaft pins -arrows-.

Fig 13: Camshaft Timing Chain And Camshaft Sprocket

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-- Remove the chain tensioner -1- for the balance shaft timing chain.

Fig 14: Chain Tensioner And Balance Shaft Timing Chain

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-- Remove the bolts -1-. Remove the tensioning rail -2- and the guide rails -3 and 4-.

Fig 15: Identifying Tensioning Rail And Glide Rails

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-- Loosen the adjusting bolt -A- and remove the tensioning pin -B-.

Fig 16: Identifying Camshaft Timing Chain And Drive Chain

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-- Remove the oil pump drive timing chain to remove the three stage chain sprocket.

-- Remove the camshaft timing chain and drive chain for the balance shaft.