Removing the cylinder head cover

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WARNING: Hot surfaces .
Risk of burning!

Perform all work only on components that have cooled down.

WARNING: Working on fuel system .
Risk of fire! Danger of explosion!

When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
No fire, sparks, open flames or smoking.

CAUTION: On releasing high pressure line, fuel may emerge at high speed .
Injury hazard!

Wear suitable personal protective equipment.
Before performing any installation work, allow cooling system to cool down to less than 40°C.
Note warnings on cylinder head cover.

NOTE: TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

NOTE: TECHNICAL INFORMATION
Only G05 and G07
On vehicles with an active stabilizer (ARS), the fan cowl must be removed to crank the engine.
For additional information see: REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN .

Preliminary work

Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE COVER OF THE ENGINE COMPARTMENT AT THE REAR LEFT .
Refer to REMOVING THE COVER OF THE REAR RIGHT ENGINE COMPARTMENT .
Refer to REMOVING LEFT AND RIGHT WIPER ARM .
Refer to REMOVING REAR HOOD SEAL .
Refer to REMOVING THE COWL COVER .
Refer to REMOVING THE CENTER COWL UPPER PART .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVING THE STRUT BRACE AT THE LEFT AND RIGHT .
Refer to REMOVING THE RIGHT TENSION STRUT ON THE SHOCK TOWER .
Refer to REMOVING THE INTAKE FILTER HOUSING (TENSION STRUT ON SHOCK TOWER REMOVED) .
Refer to REMOVING CLEAN AIR PIPE AND RESONATOR .
Refer to REMOVING ALL IGNITION COILS .
Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
Refer to REMOVING FUEL DELIVERY LINE .
Refer to REMOVING HIGH PRESSURE PUMP .
Refer to REMOVING THE RAIL WITH INJECTORS OF CYLINDERS 1 TO 3 .
Refer to REMOVING THE RAIL WITH INJECTORS OF CYLINDERS 4 TO 6 .
Refer to REMOVING BOTH ACTUATORS .
Refer to REMOVING THE FRONT UNDERBODY PROTECTION .

Bolts of the cylinder head cover

Fig 1: Cylinder Head Cover Bolts Loosening Sequence

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1 Bolts of the cylinder head cover

21 - A Cylinder head cover

NOTE: RISK OF DAMAGE
Damage to wires when disconnecting connectors and plug connections .
Sheared wires can cause a short circuit .

Do not pull on wires when disconnecting connectors and plug connections.

Unlock the locks (1).
Feed the engine ventilation line (2) out and set it aside.

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Loosen nut (1).
Feed out ground cable (2) and set it aside.
Loosen screws (3).
Thread out holder (4) and set aside.

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Unlock and detach the locks (arrows).
Feed out the wiring harness section (1) for the sensor system 2 and put it aside.

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Unlock and release the connector (1) at the exhaust camshaft sensor.
Loosen clamp (2).

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If installed:
Unlock and loosen connector (1).
Loosen screw (2).
Remove the differential pressure sensor (3) and put it to one side.

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Loosen screws (1).
Feed out the bracket (2) of the positive battery cable and set it aside.

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Loosen clamps (1).

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Loosen clamp (1).
Feed out the wiring harness section (2) for the injectors and ignition coils and set aside.

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Unlock and release the connector (1) on the intake camshaft sensor.
Loosen clamps (2).

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Loosen clamps (1).

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Loosen all the screws (21) to (1) on the cylinder head cover (A) in sequence.

Fig 2: Cylinder Head Cover Screws Loosening Sequence
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Feed out and remove the cylinder head cover (1).

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