Camshaft Timing Chain, Removing From Camshafts: Removing

NOTE: The camshaft timing chains stay on the engine in the following description.

-- Remove the affected timing chain cover, refer to TIMING CHAIN COVER, REMOVING AND INSTALLING .

Cylinder Bank 1 (Right):

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

-- Remove the bolts -arrows- and remove the right drive axle heat shield.

Fig 1: Drive Axle Heat Shield

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-- Remove the right drive axle from the transmission flange shaft, refer to DRIVE AXLE, REMOVING AND INSTALLING .

-- Loosen the hose clamps to disconnect the hose for the EVAP canister system -arrow-.

Fig 2: Identifying Hose

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-- Free up the hose.

-- Disconnect the connector -1- from the EVAP Canister Purge Regulator Valve 1 -N80-.

Fig 3: Identifying Electrical Connector And Bolt

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-- Remove the bolt -arrow-.

-- Remove the nuts -1, 2- and the bolt -3-, free up the guide wire and move them to the side.

Fig 4: Remove The Nuts & Bolt

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-- Remove the double bolt -arrow- and then remove the shield -1-.

Fig 5: Remove Double Bolt & Shield

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-- Disconnect the vacuum hose -1-.

Fig 6: Identifying Vacuum Hose And Bolts

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-- Remove the bolts -arrows- and then set the turbocharger vacuum pipe adjusting element aside.

NOTE: Do not remove ball head -2-.

-- Disconnect the connectors -1, 2- and push the wires aside.

Fig 7: Locating Connectors

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NOTE: Ignore -3 and 4-.

-- Release and remove the sealing plug from the right camshaft housing -arrows- by turning it to the left.

Fig 8: Identifying Sealing Plug

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Cylinder Bank 2 (Left):

-- Remove the ignition coil for cylinder "7", refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING, CYLINDER BANK 2 (LEFT) .

-- Release and remove the sealing plug from the left camshaft housing -arrows- by turning it to the left.

Fig 9: Identifying Cylinder Bank 2 Bolts

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Continuation for Both Cylinder Banks:

-- Disconnect the vacuum hose -1-.

-- Remove the bolts -3- and then remove the vacuum reservoir -2-.

Fig 10: Identifying Vacuum Reservoir Bolts

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-- Position the Crankshaft Turning Tool T40272 onto the Wrench - 21 mm T40263.

-- Attach the adapter to the bolts on the vibration damper.

The semi-round countersink -arrow A- on the Crankshaft Turning Tool T40272 must face the semi-round countersink -arrow B- on the vibration damper.

NOTE: Ignore the notch on the Crankshaft Turning Tool T40272.

-- Turn the crankshaft to "TDC" in direction of engine rotation and -arrow-.

Fig 11: Identifying Crankshaft Turning Tool T40272

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The threaded holes -arrows- in the camshaft must be visible through the openings in the camshaft housing that were previously sealed with the sealing plug.

Fig 12: Identifying Sealing Plug
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NOTE:

The right camshaft housing is shown in the illustration.

If the threaded hole is not visible, turn the crankshaft one more turn.

Cylinder Bank 1 (Right):

Fig 13: Locating Right Bolt -Right Arrow- On Camshaft Locating Tool T40264/1

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-- If necessary, turn the crankshaft slightly back and forth to insert the camshaft locating tool T40264/1 into the right cylinder head and tighten -arrows-.

Tightening specification 12 Nm.

Cylinder Bank 2 (Left):

Fig 14: Locating Right Bolt -Right Arrow- On Camshaft Locating Tool T40264/2

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-- If necessary, turn the crankshaft slightly back and forth to insert the camshaft locating tool T40264/2 into the left cylinder head and tighten -arrows-.

Tightening specification 12 Nm.

Continuation for Both Cylinder Banks:

Fig 15: Identifying Camshaft Locating Tool T40264/3

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-- If necessary, turn the crankshaft slightly back and forth to insert the camshaft locating tool T40264/3 by hand into the vibration damper opening and all the way into the cylinder block.

Cylinder Bank 1 (Right):

Fig 16: Identifying Locking Pin T40071 And Screwdriver

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-- Press the right camshaft timing chain tensioner guide rails in as far as the stop using a screwdriver -1- and secure the chain tensioner with a Locking Pin T40071.

NOTE: The toothed belt tensioner is lubricated with oil and should only be compressed slowly by applying constant pressure.

Cylinder Bank 2 (Left):

Fig 17: Identifying Locking Pin T40071 And Screwdriver

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-- Press the left camshaft timing chain tensioner guide rails in as far as the stop using a screwdriver -1- and secure the chain tensioner with a Locking Pin T40071.

NOTE: The toothed belt tensioner is lubricated with oil and should only be compressed slowly by applying constant pressure.

Continuation for Both Cylinder Banks:

Fig 18: Positioning Wrench - Camshaft T40269 Onto Camshaft Adjuster For Left Intake Camshaft And Counterhold With Wrench

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CAUTION:

The camshafts can get damaged.

The camshaft locating tools T40264/1 and T40264/2 must never be used as a counterholder to loosen the camshaft adjuster bolt or camshaft chain sprocket.

-- To counterhold, attach the Wrench - Camshaft T40269 to the relevant camshaft adjuster and loosen the bolt -1-.

-- Mark the installation position of the camshaft adjuster with paint for installation later.

CAUTION:

Danger of causing damage to the engine.

To prevent small parts from accidentally entering the engine through the opening in the timing chain compartment, cover the opening with a clean cloth.

Cylinder Bank 1 (Right):

Fig 19: Locating Camshaft Adjuster Bolts

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-- Remove the bolts -1, 2- and remove both of the camshaft adjusters.

-- Remove the camshaft timing chain from the gliding piece.

Cylinder Bank 2 (Left):

Fig 20: Removing Bolts By Counterholding With Wrench And Wrench - Camshaft T40269

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-- Remove the bolts -1, 2- and remove both of the camshaft adjusters.

-- Remove the camshaft timing chain from the gliding piece.