Installing the exhaust camshaft for cylinders 7 to 12

Exhaust camshaft, left

Fig 1: Exhaust Camshaft Screws Tightening Sequence

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1-14 Screws (graphic N74)

Check the plain rectangular compression rings (1) on the exhaust camshaft for damage, replace if necessary.
The snap-in lugs (arrows) of the plain rectangular compression ring must be locked in place.

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Ensure a correct fit of the roller cam follower (1).
Coat all bearing positions of the exhaust camshaft on the cylinder head with engine oil.

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Observe the camshaft identification.
All camshafts are identified and must never be mixed up.

A = Exhaust side, 712 = Cylinders 7 to 12

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Coat all bearing positions with motor oil.
Insert exhaust camshaft without tension so that the identification is legible.
Observe the correct installation orientation of the roller cam follower (arrows).
The cams on cylinder 7 must point outwards.

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Make sure that the thrust bearing of the exhaust camshaft (1) is positioned correctly in the cylinder head.
The exhaust camshaft bearing cap of the thrust bearing (1) can only be mounted in one position.

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Coat all bearing positions with motor oil.
Observe the identification of the camshaft bearing caps.
All camshaft bearing cups are marked and must never be mixed up.

L = Cylinders 7 to 12, A = Exhaust side, 4 = Bearing position 4

R = Cylinder 1 to 6, E = Intake side

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Position all exhaust camshaft bearing caps (2) at their original installation location and tighten the screws by hand.
Position the lid (1) of the thrust bearing on the thrust bearing and hand-tighten the screws.

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Insert special tool 0 496 381 (11 9 893) .
The special tool 0 496 381 (11 9 893) must lie flush on the cylinder head after positioning the exhaust camshaft.
If necessary, slightly twist the exhaust camshaft.

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Tighten the screws in the sequence (14) to (1) in steps of 180° with the snug torque.

TIGHTENING TORQUE SPECIFICATIONS

Camshaft bearing cap to cylinder head
M7x45	Joining torque	15 Nm
M7x45	Tightening torque	15 Nm

Make sure that all the exhaust camshaft bearing caps lie on the cylinder head without gaps.

Tighten the screws in the sequence (14) to (1) with the tightening torque.

TIGHTENING TORQUE SPECIFICATIONS

Camshaft bearing cap to cylinder head
M7x45	Joining torque	15 Nm
M7x45	Tightening torque	15 Nm

Fig 2: Exhaust Camshaft Screws Tightening Sequence

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Follow-up work

Refer to SCREW IN SPECIAL TOOLS 11 9 895 1 TO 6 AND 7 TO 12 .
Refer to FASTENING THE CAMSHAFTS WITH THE SPECIAL TOOL .
Refer to INSTALLING THE EXHAUST CAMSHAFT ADJUSTER OF CYLINDERS 7 TO 12 .
Refer to REPLACING THE CENTRAL BOLT .
Refer to SECURING BOTH CENTRAL BOLTS OF THE VANOS GEAR .
Refer to INSTALLING THE UPPER SLIDE RAIL .
Refer to INSTALLING SPECIAL TOOL TO PRE-TENSIONING TIMING CHAIN .
Refer to SECURING THE CENTRAL BOLT OF THE VARIABLE CAMSHAFT TIMING CONTROL OF THE INTAKE .
Refer to SECURING THE CENTRAL BOLT OF THE VARIABLE CAMSHAFT TIMING CONTROL OF THE EXHAUST .
Refer to REMOVING THE SPECIAL TOOLS TO FIX THE CAMSHAFTS .
Refer to CHECKING TIMING .
Refer to REMOVING THE SPECIAL TOOLS TO DISCONNECTING THE CRANKSHAFT .
Refer to REMOVING SPECIAL TOOL TO PRETENSION TIMING CHAIN .
Refer to INSTALLING THE HYDRAULIC CHAIN TENSIONER .
Refer to INSTALLING THE TOP TIMING CASE COVER OF CYLINDERS 7 TO 12 .
Refer to INSTALLING BOTH SOLENOID VALVES ON THE LEFT .
Refer to INSTALLING ALTERNATOR 2 .
Refer to INSTALLING THE HEATER RETURNING HOSE ON THE COOLANT PUMP .
Refer to INSTALLING THE LEFT COOLANT HOSE ON THE RADIATOR .
Refer to CONNECTING THE COOLANT HOSE TO THE RADIATOR .
Refer to MOUNTING AIR CONDITIONING COMPRESSOR .
Refer to INSTALLING THE BELT PULLEY .
Refer to INSTALLING THE DRIVE BELT FOR ALTERNATOR .
Refer to INSTALLING THE DRIVE BELT FOR ALTERNATOR 2 AND THE AIR CONDITIONING COMPRESSOR .
Refer to REMOVING THE PROTECTIVE PLATE AT THE RADIATOR .
Refer to INSTALLING THE ACTIVE STABILIZER IN FRONT .
Refer to SECURING THE ANTI-ROLL BAR LINK ON THE LEFT AND RIGHT TO THE ANTI-ROLL BAR .
Refer to INSTALLING THE COVER OF THE STEERING ASSEMBLY ON THE RIGHT .
Refer to INSTALLING THE FRONT RIGHT WHEEL .
Refer to INSTALLING THE STIFFENING PLATE .
Refer to INSTALLING THE UNDERBODY PROTECTION OF THE STEERING GEAR OR THE FRONT THRUST FIELD .
Refer to INSTALLING THE FRONT UNDERBODY PROTECTION OR FRONT THRUST FIELD .
Refer to INSTALLING THE LEFT CYLINDER HEAD COVER .
Refer to ATTACHING COOLANT LINE FOR LEFT EXHAUST TURBOCHARGER .
Refer to PREPARING THE INJECTOR FOR INSTALLATION .
Refer to INSTALLING INJECTORS .
Refer to INSTALLING THE LEFT HIGH PRESSURE PUMP .
Refer to INSTALLING THE HIGH-PRESSURE RAIL ON THE LEFT .
Refer to INSTALLING ALL HIGH PRESSURE LINES BETWEEN THE RAIL AND THE INJECTORS .
Refer to INSTALLING FUEL DELIVERY LINE .
Refer to INSTALLING THE LEFT-HAND HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
Refer to INSTALLING CHARGE AIR PIPE ON LEFT .
Refer to INSTALLING TOP CLEAN AIR PIPE ON LEFT .
Refer to PARTIALLY FASTENING THE WIRING HARNESS ON THE LEFT CYLINDER HEAD COVER .
Refer to CONNECTING ALL THE CONNECTORS TO THE DME CONTROL UNIT FOR CYLINDERS 7 TO 12 .
Refer to INSTALLING COVER FOR THE LEFT DME CONTROL UNIT .
Refer to INSTALLING THE IGNITION COILS .
Refer to INSTALLING THE LEFT-HAND VENTILATION LINE .
Refer to INSTALLING THE INTAKE PLENUM .
Refer to INSTALLING THE TANK VENT LINE .
Refer to INSTALLING THE ENGINE VENTILATION LINE ON THE INTAKE SYSTEM .
Refer to INSTALLING FAN COWL .
Refer to INSTALLING THE REAR TOP CROSS CONNECTION .
Refer to MOUNTING THE LEFT-HAND CHARGE AIR COOLER .
Refer to INSTALLING THE LEFT THROTTLE BODY .
Refer to INSTALLING LEFT INTAKE PORT .
Refer to INSTALLING THE LEFT-HAND AIR DUCT .
Refer to INSTALLING LEFT INTAKE SILENCER HOUSING .
Refer to MOUNTING THE RIGHT-HAND CHARGE AIR COOLER .
Refer to INSTALLING THE RIGHT THROTTLE BODY .
Refer to INSTALLING RIGHT AIR DUCT .
Refer to INSTALLING RIGHT INTAKE SILENCER HOUSING .
Refer to INSTALLING THE CENTER COWL UPPER PART .
Refer to INSTALLING TENSION STRUT ON SHOCK TOWER .
Refer to INSTALLING WINDSHIELD PANEL COVER .
Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .
Refer to INSTALLING THE REAR RIGHT ENGINE COMPARTMENT COVER .
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT ON THE REAR LEFT .
Refer to INSTALLING LEFT AND RIGHT WIPER ARM .
Refer to INSTALLING FANFARE HORN, RIGHT .
Refer to INSTALLING THE FANFARE ON THE LEFT SIDE .
Refer to INSTALLING THE CENTER TOP CROSS CONNECTION .
Refer to INSTALLING BOTH HEADLIGHTS .
Refer to INSTALLING BUMPER COVER, FRONT .
Refer to INSTALLING FRONT SECTION OF THE FRONT WHEEL ARCH COVER (PARTIALLY REMOVED) .
Refer to INSTALLING FRONT ORNAMENTAL GRILLE .
Refer to INSTALLING THE COVER OF THE ENGINE COMPARTMENT CENTER .
Refer to INSTALLING ACOUSTIC COVER .
Refer to CONNECTING ALL BATTERY GROUND LEADS .
Refer to FILLING THE COOLING SYSTEM WITH THE VACUUM FILLING UNIT .
Refer to VENTING THE HIGH-TEMPERATURE COOLANT SYSTEM .
Refer to ADJUSTING HEADLIGHTS .