Removing the cylinder head gasket
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WARNING:
Hot surfaces
.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
WARNING:
Working on fuel system
.
Risk of fire! Danger of explosion!
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!
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:
RISK OF DAMAGE
Engine damage due to missing motor oil .
Missing motor oil following replacement of the cylinder head or the engine can lead to damage on the valve train .
Engine damage due to missing motor oil .
Missing motor oil following replacement of the cylinder head or the engine can lead to damage on the valve train .
- After replacing the cylinder head or the engine, do not start the engine without observing the repair notes.
- It is imperative you observe the repair notes for cylinder head or engine replacement.
- For additional information, see: REPAIR NOTES FOR CYLINDER HEAD OR ENGINE REPLACEMENT .
NOTE:
TECHNICAL INFORMATION
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
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 REAR HOOD SEAL .
- Refer to REMOVING LEFT AND RIGHT WIPER ARM .
- Refer to REMOVING THE COWL COVER .
- Refer to REMOVING THE RIGHT COWL UPPER PART .
- 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 COWL LOWER PART .
- Refer to REMOVING THE CENTER STRUT BRACE .
- Refer to REMOVING THE TOP LEFT COVER IN THE ENGINE COMPARTMENT , and REMOVING THE TOP RIGHT COVER IN THE ENGINE COMPARTMENT .
- Refer to REMOVING THE TENSION STRUT AT THE SHOCK TOWER ON THE LEFT AND RIGHT .
- Refer to REMOVING UPPER CROSS CONNECTION .
- Refer to REMOVING THE REAR TOP CROSS CONNECTION .
- Refer to REMOVING ALL IGNITION COILS .
- Refer to REMOVING ALL SPARK PLUGS .
- Refer to REMOVING THE INTAKE FILTER HOUSING (TENSION STRUT ON SHOCK TOWER REMOVED) .
- Refer to REMOVING CLEAN AIR PIPE AND RESONATOR .
- Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
- Refer to REMOVING THE OXYGEN SENSOR MONITOR .
- Refer to REMOVING THE HOLDER OF THE POSITIVE BATTERY CABLE .
- 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 CYLINDER HEAD COVER .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE STIFFENING PLATE .
- Refer to REMOVING THE COVER OF THE STEERING ASSEMBLY .
- Refer to REMOVING THE FRONT RIGHT LOWER WHEEL ARCH COVER .
- Refer to REMOVING THE RIGHT REAR TORSION STRUT WHERE REQUIRED .
- Refer to REMOVING THE LEFT AND RIGHT REAR DIFFUSER .
- Refer to REMOVING EXHAUST SYSTEM .
- Refer to REMOVING CATALYTIC CONVERTER .
- Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
- Refer to DRAINING THE COOLANT FROM THE HIGH-TEMPERATURE COOLING SYSTEM .
- Refer to DRAINING THE COOLANT FROM THE LOW-TEMPERATURE COOLING SYSTEM .
- Refer to CONNECTING THE COOLANT LINE TO THE HIGH-TEMPERATURE COOLANT RADIATOR .
- Refer to CONNECTING THE COOLANT LINE TO THE AUXILIARY COOLANT PUMP .
- Refer to REMOVING FAN COWL .
- Refer to REMOVING CHARGE AIR LINE .
- Refer to REMOVING THE COOLANT LINE BETWEEN THE COOLANT PUMP AND CYLINDER HEAD .
- Refer to REMOVING LOW-TEMPERATURE COOLANT EXPANSION TANK .
- Refer to REMOVING TANK VENT VALVE .
- Refer to REMOVING THE INTAKE PLENUM .
- Refer to BLOCKING ENGINE IN TDC FIRING POSITION .
- Refer to REMOVING CHAIN TENSIONER .
- Refer to RELEASING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
- Refer to RELEASING VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
- Refer to REMOVING THE VANOS CENTRAL VALVE OF THE INTAKE ADJUSTER .
- Refer to REMOVING THE VANOS CENTRAL VALVE OF THE EXHAUST CAMSHAFT ADJUSTER .
- Refer to REMOVING INTAKE ADJUSTER .
- Refer to REMOVING EXHAUST CAMSHAFT ADJUSTER .
- Refer to REMOVING THE TEST GAUGES FOR SECURING THE CAMSHAFTS .
- Refer to REMOVING THE CYLINDER HEAD .
- Refer to REMOVING THE EXHAUST TURBOCHARGER (CYLINDER HEAD REMOVED) .
- Pull out and remove cylinder head gasket (1).