Camshaft Timing Chain, Removing And Installing, Engine With One Camshaft Adjuster: Installing

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-- Check the crankshaft at TDC. The flat area on the crankshaft -arrow- must be horizontal.

-- Draw the markings on the cylinder block -1-, as shown, with a waterproof marker.

-- Draw a marking -2- on the three stage chain sprocket tooth -1- with a waterproof marker.

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-- Turn the intermediate sprocket and balance shaft to the marks -arrow-, but do not loosen the bolt -1-.

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NOTE:

The painted links of the drive chain must be positioned on the markings on the chain sprockets.

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Ignore the position of any additional painted chain links that may also be present.

-- Position the balance shaft drive chain, the painted links -arrows- must be positioned with the markings on the chain sprockets.

-- Install the guide rail -1- and tighten the bolts -arrows-.

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-- Hook the camshaft timing chain with the marks -arrows- onto the camshaft pins.

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-- Lay the oil pump drive timing chain onto the three stage chain sprocket.

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-- Tilt the three stage chain sprocket in direction of -arrow- toward the engine and secure it to the crankshaft. The marks -arrows- must be positioned opposite each other.

-- Install the : T10531/2  in the crankshaft and tighten hand-tight.

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-- Install the : T10531/3  . Tighten the : T10531/4  hand-tight. Using a 32 mm open end wrench move the : T10531/3  back and forth slightly while doing this tighten the : T10531/4  until the chain sprocket is seated securely on the crankshaft splines. Now tighten the adjusting bolt -A-.

-- Position the painted chain link in the balance shaft drive chain -arrow- at the mark on the three stage chain sprocket. Install the tensioning rail -1- and guide rail -2- and tighten the bolts -3-.

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-- Install the chain tensioner -1-.

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-- Check the adjustment again. The painted chain links -arrows- must line up with the markings on the chain sprockets.

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-- Place the camshaft timing chain on the intake camshaft, exhaust camshaft and the crankshaft. Position the painted chain links -arrows- on the marks on the chain sprockets.

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-- Install the guide rail -2- and tighten the bolts -1-.

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-- Install the upper guide rail -arrow-.

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

-- Turn the exhaust camshaft with the : T10172A  slightly in direction of -arrow A- and push the : T40271/1  from the chain sprocket splines in direction of -arrow B-.

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-- Release the camshaft in the direction -C-, until the timing chain touches the guide rail -1-. Hold the camshaft firmly in this position, install the tensioning rail -2- and tighten the bolt -3-.

-- Install the chain tensioner -1- and tighten the bolts -arrows-.

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-- Turn the intake camshaft in direction of -arrow 1- using the : T40266  . Slide the : T40271/2  out of the chain sprocket splines in direction of -arrow 2- and release the camshaft.

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-- Remove the : T40271/1  and : T40271/2  .

-- Check the adjustment. The painted chain links -arrows- must line up with the markings on the chain sprockets.

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-- Install the chain tensioner -2- and tighten the bolt -1-. Remove the : T40011  , the oil pump chain tensioner must come into contact with the cut-out in the oil pan upper section -arrow-.

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-- Install the bolts -arrows- and tighten them. Tightening specification, refer to -item  4- Bolt (OVERVIEW - CYLINDER HEAD).

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-- Lubricate the hole -arrow- with engine oil.

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• Carefully connect the bearing bracket without tilting - risk of damage.

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-- Mount the bearing bracket and the bolts -arrows- hand-tight.

-- Remove the : T40267  .

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-- Tighten the bearing bracket bolts. Refer to Figure.

-- Install the control valve, refer to -item  7- (OVERVIEW - CAMSHAFT TIMING CHAIN, ENGINE WITH ONE CAMSHAFT ADJUSTER).

-- To ensure that the vales do not make contact when starting, carefully rotate the engine at least two full revolutions.

TIP: 

Due to the ratio, the painted chain links no longer match up after the engine has been turned.

Further installation is performed in reverse order of removal, while noting the following:

-- Remove the turning over tool and install the lower timing chain cover. Refer to LOWER TIMING CHAIN COVER, REPLACING .

-- Install the upper timing chain cover. Refer to TIMING CHAIN COVER, REMOVING AND INSTALLING, ENGINE WITH TWO CAMSHAFT ADJUSTERS .

-- After performing work on the chain drive the adaptation value in the engine control module must be adapted. To do so, turn on the ignition and select the following menu items on the Vehicle Diagnostic Tester:

• 01 - Engine Electronics 
• Guided Functions 
• 01 - Adaptation after repair work on the chain drive