Removing the cylinder head cover
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:
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
- Bring front compartment lid in the SERVICE POSITION .
- Deactivate the 48 v ELECTRICAL SYSTEM .
- Disconnect all battery GROUND LEADS .
- Remove the rear left engine compartment COVER .
- Remove the rear right engine compartment COVER .
- Remove the hood rear SEAL .
- Remove left and right WIPER ARM .
- Remove the cowl COVER .
- Remove the left and right shock tower TENSION STRUT .
- Remove the upper part FIREWALL .
- Remove right sealing FRAME .
- Remove the second bottom FIREWALL .
- Remove the ACOUSTIC COVER .
- Remove rear ACOUSTIC COVER .
- Remove RESONATOR .
- Remove the engine front ACOUSTIC COVER .
- Remove the cylinder head cover ACOUSTIC COVER .
- Remove the IGNITION COIL .
- Remove the HIGH PRESSURE LINE between the high pressure pump and the rail.
- Remove the RAIL with injectors.
- Remove FUEL DELIVERY LINE .
- Remove HIGH PRESSURE PUMP .
- Remove both ACTUATORS .
- Remove the front UNDERBODY PROTECTION .
- Release the electromechanical steering gear EPS WIRING HARNESS .
Bolts of the cylinder head cover
NOTE:
RISK OF DAMAGE
Damage to wires when disconnecting connectors and plug connections.
Sheared wires can cause a short circuit.
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.
- Unlock the plug connection (1) on the intake camshaft sensor and disconnect.
- Loosen screw (2).
- Feed out the wiring harness section (3) for sensor system 1 and place to one side.
- Unlock the plug connection (1) on the exhaust camshaft sensor and disconnect.
- Unlock and loosen clamp (2).
- Unlock and detach the locks (arrows).
- Feed out the wiring harness section (1) for sensor system 2 and place to one side.
- Unlock plug connection (1) and disconnect.
- Feed out the differential pressure sensor (2) from the holder (3) and place to one side.
- Loosen screws (1).
- Feed out the bracket (2) of the positive battery cable and set it aside.
- Feed wiring harness section (1) for sensor system 2 out of guides (2), and place to side.
- Loosen clamp (1).
- Loosen clamp (1).
- Feed out the wiring harness section (2) for the injectors and ignition coils and set aside.
- Loosen screws in the order (15) to (1).
- Feed out and remove the cylinder head cover (A).