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

WARNING: This page is about a different variant/trim than selected.

Fig 1: Check The Crankshaft @ TDC

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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.

Fig 2: Draw Marking On Three Stage Chain Sprocket Tooth

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

Fig 3: Identifying Intermediate Shaft Sprocket

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NOTE:

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

Fig 4: Identifying 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-.

Fig 5: Identifying Guide Rail And Tighten Bolts

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

Fig 6: Camshaft Timing Chain And Camshaft Sprocket

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

Fig 7: Identifying 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.

Fig 8: Identifying Assembly Tool - Turning Over Tool T10531/3

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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-.

Fig 9: Identifying Painted Chain Link In Balance Shaft Drive Chain

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-- Install the chain tensioner -1-.

Fig 10: Chain Tensioner And Balance Shaft Timing Chain

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

Fig 11: Identifying Painted Chain Links

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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.

Fig 12: Camshaft Timing Chain On Intake Camshaft

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

Fig 13: Identifying Bolts And Glide Rail

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-- Install the upper guide rail -arrow-.

Fig 14: Identifying Guide Rail

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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-.

Fig 15: Identifying Counterhold - Kit - Multiple Use T10172

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-- Release the camshaft in the direction of -arrow 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-.

Fig 16: Bolts And Chain Tensioner

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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.

Fig 17: Identifying Assembly Tool T40266 And Camshaft Clamp T40271/2

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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.

Fig 18: Identifying Painted Chain Links

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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-.

Fig 19: Identifying Chain Tensioner

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-- Install the bolts -arrows- and tighten them. Tightening specification -item ) Bolt.

Fig 20: Identifying Bolts

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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.

Fig 21: Bearing Bracket Bolts
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-- Mount the bearing bracket and the bolts -arrows- hand-tight.

-- Remove the : T40267 .

Fig 22: Securing Chain Tensioner With T40267

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

-- Install the control valve -item ) Control Valve.

-- 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 Removing or Replacing the Chain Drive Components the Adaptation Values for the Chain Length must be Adapted Again.

-- Connect the Vehicle Diagnostic Tester.

-- Select Diagnostic operating mode and Start diagnostics .

-- Select the Select individual test tab and select the following tree structure consecutively:

Drivetrain
Select the engine code and engine
01 - OBD-capable systems .
01 - Engine Electronics
01 - Engine electronics, functions
01 - Chain length diagnostic adaptation