11 36 047 Removing and installing/replacing inlet and exhaust adjustment units on left side (N62): Installation

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

Installation of inlet and exhaust adjustment units is described separately from removal.

CAUTION: Risk of mixing up parts.

The inlet and exhaust adjustment units are different.

Mixing up the inlet and exhaust adjustment units will cause damage to the engine.

Inlet adjustment unit (1) is marked with EIN and IN
Exhaust adjustment unit (2) is marked with AUS and EX

Fig 1: Identifying Marks On Inlet Adjustment Unit And Exhaust Adjustment Unit
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NOTE: Position of inlet adjustment unit (1) to timing chain can be freely selected.

Pull timing chain up.

Feed inlet adjustment unit (1) into timing chain and fit onto inlet camshaft.

Fig 2: Feeding Inlet Adjustment Unit Into Timing Chain

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Replace screw.

Install screw on inlet adjustment unit.

Tighten screw without play and then slacken off again by half a turn.

Fig 3: Installing Screw On Inlet Adjustment Unit

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NOTE: Position of exhaust adjustment unit (2) to timing chain can be freely selected.

Pull timing chain up.

Feed exhaust adjustment unit (2) into timing chain.

Press tensioner rail (3) back and fit exhaust adjustment unit (2) onto exhaust camshaft.

NOTE: If tensioner rail (3) cannot be pressed back far enough to enable fitting of exhaust adjustment unit (2):

Remove chain tensioner. Place chain tensioner on a level surface and compress slowly and carefully. Repeat this procedure twice.

Fig 4: Feeding Exhaust Adjustment Unit Into Timing Chain

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Installation:

Replace sealing ring. Install chain tensioner and tighten down.

Tightening torque, see ENGINE - TIGHTENING TORQUES .

Fit exhaust adjustment unit (2).

Replace screw.

Install screw on exhaust adjustment unit.

Tighten screw without play and then slacken off again by half a turn.

Fig 5: Installing Screw On Exhaust Adjustment Unit

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Get special tool kit 11 9 460 ready for securing camshafts.

NOTE: Special tool 11 9 461 for securing inlet camshaft.

Special tool 11 9 462 for securing exhaust camshaft.

Special tool 11 9 463 (holder with screw).

Fig 6: Identifying Special Tools

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Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Fig 7: Placing Special Tool 11 9 461 On Inlet Camshaft And Aligning Inlet Camshaft

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Fit special tool 11 9 463, secure screw (1) in thread for oil line and tighten down by hand.

Fig 8: Tightening Screw In Thread For Oil Line

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CAUTION: Make sure screws of inlet and exhaust adjustment units have been slackened off by a half turn.

Crank engine at central bolt from 45° before TDC position in direction of rotation to firing TDC position.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Fig 9: Securing Vibration Damper With Special Tool 11 9 190

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NOTE: When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Tightening torque, see ENGINE - TIGHTENING TORQUES .

Fig 10: Tightening Screw Of Inlet Adjustment Unit

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Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Fig 11: Removing Special Tools 11 9 463 And 11 9 461 From Inlet Camshaft

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Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Fig 12: Placing Special Tool 11 9 462 On Exhaust Camshaft And Aligning Exhaust Camshaft

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Fit special tool 11 9 463, secure screw (1) in thread for oil line and tighten down by hand.

Fig 13: Tightening Screw In Thread For Oil Line

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NOTE: When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Tightening torque, see ENGINE - TIGHTENING TORQUES .

Fig 14: Tightening Screw Of Exhaust Adjustment Unit

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Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Fig 15: Releasing Screw And Removing Special Tools 11 9 463 And 11 9 462 From Exhaust Camshaft

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Remove special tool 11 9 190.

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Fig 16: Securing Vibration Damper With Special Tool 11 9 190

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Place special tool 11 9 461 on inlet camshaft and check timing.

NOTE: The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Fig 17: Placing Special Tool 11 9 461 On Inlet Camshaft And Checking Timing

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Place special tool 11 9 462 on exhaust camshaft and check timing.

NOTE: The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Fig 18: Placing Special Tool 11 9 462 On Exhaust Camshaft And Checking Timing

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Remove all special tools.

CAUTION: Screw (1) is a special screw and must not be replaced with a normal M8 screw.

Clip oil line (3) into retainers (2).

Insert screw (1) and tighten down.

Assemble engine.

Fig 19: Clipping Oil Line Into Retainers

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