Remove right valves

Preliminary work

Refer to REMOVING THE CYLINDER HEAD .

Remove spark plugs

CAUTION: Swirling dirt particles caused by compressed air.
Injury hazard!

Collect dirt particles, e.g. when blowing out, use cloth to do so.
Wear safety goggles.

NOTE: TECHNICAL INFORMATION
Clean spark plug slot with compressed air.
The spark plug shaft must be cleaned using compressed air after having removed the ignition coils and before removing the spark plugs. After having removed the spark plugs, once again check the sealing surface for contamination and (if necessary) clean using a moist cloth or clean using compressed air.
Deposits that are not removed according to instructions may enter the combustion chamber and lead to uncontrolled combustion. Remaining deposits on the spark plug sealing surfaces may lead to leaks and the spark plugs may come loose during engine operation.
Spark plug threads must not be greased or oiled. Insufficiently tightened spark plugs may cause leaks and the sparks plugs may come loose during engine operation.

NOTE: TECHNICAL INFORMATION
Exclusively swiveling extensions may be used for the reversible ratchet. Rigid mounting tool and variable plug connections with rigid option may not be used; there is a risk that the insulator breaks.

Connect the special tool 0 495 560 (12 1 220) to an extension with a joint and a reversible ratchet.

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Unscrew the spark plugs with the special tool 0 495 560 (12 1 220) and an extension (1).

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NOTE: For a better overview the removed condition is shown here.

Position the special too l 2 451 701 on the exhaust manifold.

Tighten screws (1), (2) and (3).

TIGHTENING TORQUE SPECIFICATIONS

Special tool to exhaust manifold
M6	Tightening torque	8 Nm

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Release the flange nut in the sequence (11) to (1).

Fig 1: Exhaust Manifold Flange Nuts Loosening Sequence
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Remove all supporting strips (1).
Remove turbocharger towards bottom.

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CAUTION:
Heavy component.
Heavy components can lead to injury or damage.
- Remove and install heavy components with the aid of another person/other persons.
Position the cylinder head (1) on the special tool 0 494 362 (11 9 000) as shown in the graphic and pivot it in the direction of the arrow.

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Secure the cylinder head (1) with the available cylinder head bolts (2) and (3) onto the special tool 0 494 362 (11 9 000) .
Tighten down screws (2) and (3).

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TIGHTENING TORQUE SPECIFICATIONS

Standard screw connection M10
M10	Tightening torque	38 Nm

Removing the exhaust camshaft for cylinders 1 to 6

Exhaust camshaft, right

Fig 2: Right Exhaust Camshaft Screws Loosening Sequence

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NOTE: TECHNICAL INFORMATION
Maintain conditions of absolute cleanliness.

Release all screws step-by-step in the right sequence (1) to (14) in a semi circle pattern.

Fig 3: Right Exhaust Camshaft Screws Loosening Sequence
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Remove the thrust bearing (1) and all the exhaust camshaft bearing caps (2) and place neatly in a special tool 0 495 105 (11 4 480) .
Remove the exhaust camshaft and place in the special tool 0 495 105 (11 4 480) .

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Removing the intake camshaft for cylinders 1 through 6

Intake camshaft, right

Fig 4: Right Intake Camshaft Screws Loosening Sequence

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NOTE: TECHNICAL INFORMATION
Maintain conditions of absolute cleanliness.

Incrementally loosen all bolts in the sequence (1) to (14) in half-turns.

Fig 5: Right Intake Camshaft Bolts Loosening Sequence
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Remove thrust bearing (1) and high pressure pump bracket (2) and place them in order in special tool 0 495 105 (11 4 480) .

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Remove all intake camshaft bearing caps (1) and neatly position on the special tool 0 495 105 (11 4 480) .
Remove the intake camshaft and place in the special tool 0 495 105 (11 4 480) .

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Remove all roller cam followers

Detach and remove the roller cam followers (1) on the intake side from hydraulic valve clearance compensating elements (arrows).
Place all the roller cam followers (1) in order in the special tool 0 495 105 (11 4 480) .

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Detach and remove the roller cam followers (1) on the exhaust side from hydraulic valve clearance compensating elements (arrows).
Place all the roller cam followers (1) in order in the special tool 0 495 105 (11 4 480) .

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Removing all hydraulic valve clearance compensating elements

Remove all hydraulic valve clearance compensating elements (1) up and out in the arrow direction.
Lay the hydraulic valve clearance compensating elements (1), together with the rocker arms, orderly in the special tool 0 495 105 (11 4 480) .

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Prepare the special tools 0 494 371 (11 9 006) , 0 494 372 (11 9 007) and 0 494 373 (11 9 008) as shown.

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Position the special tools 0 494 371 (11 9 006) , 0 494 372 (11 9 007) and 0 494 373 (11 9 008) on the cylinder head in the center.

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Shift the special tool 0 494 370 (11 9 005) over the edge of the special tool 0 494 371 (11 9 006) in the arrow direction.

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Lock special tool 0 494 370 (11 9 005) in arrow direction.
Turn special tool 0 494 362 (11 9 000) and the cylinder head by 180°.

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Press down all valve springs with the special tool 0 496 143 (11 8 840) .

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Keep valve spring pressed down with special tool 0 496 143 (11 8 840) .
Remove the valve shims (1) from the valve (2) using a magnet.
Relieve load on valve spring.

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Remove the spring cup (1) and the valve spring (2) and position neatly in the special tool 0 495 105 (11 4 480) .

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Disassemble the valve stem seal (1) using the special tool 0 490 796 (11 1 480) .

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Unlock the special tool 0 494 370 (11 9 005) in the direction of the arrow.
Remove the special tool 0 494 371 (11 9 006) .

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Slide the valve stem (1) into the cylinder head in the direction of the arrow.

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Remove the valve (1) and position in special tool 0 495 105 (11 4 480) in order.

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