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

WARNING: This page is about a different car, the 2024 Audi Q3 and 2023 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.

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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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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TIP:

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 the direction of -arrow- toward the engine and secure it to the crankshaft. The marks -arrows- must be positioned opposite each other.

-- Install the Assembly Tool - Tensioning Pins: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 Assembly Tool - Turning Over Tool:T10531/3 . Tighten the Assembly Tool - Knurled Nut:T10531/4 hand-tight. Using a 32 mm open end wrench move the Assembly Tool - Turning Over Tool back and forth slightly while doing this tighten the Assembly Tool - Knurled Nut 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.

-- Use the Counterhold - Multiple Use:T10172A to turn the exhaust camshaft slightly in the direction of -arrow A- and push the Camshaft Lock:T40271/1 out of the chain sprocket splines in the direction of -arrow B-.

Fig 15: Identifying Counterhold - Kit - Multiple Use T10172

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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-.

Fig 16: Bolts And Chain Tensioner

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-- Use the Adapter:T40266 to turn the intake camshaft in the direction of -arrow 1-. Slide the Camshaft Lock:T40271/2 out of the chain sprocket splines in the direction of -arrow 2- and release the tension on the camshaft.

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

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-- Remove the Camshaft Locks: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 Locking Pin (3 pc.):T40011 . The oil pump chain tensioner bracket must make contact in the opening on the oil pan upper section -arrow-.

Fig 19: Identifying Chain Tensioner

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-- Install the bolts -arrows- and tighten them. Tightening specification. Refer to -item 4- OVERVIEW - CYLINDER HEAD List 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 Tensioner Locking Tool: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 7- OVERVIEW - CAMSHAFT TIMING CHAIN, ENGINE WITH ONE CAMSHAFT ADJUSTER List 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.

Install in reverse order of removal. Note 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