Removing the cylinder head cover
WARNING:
High-voltage system
.
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock!
- All work on the high-voltage system may only be carried out by specially trained and technically experienced personnel.
- For additional information see:
- For additional information see:
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!
- 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
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
- Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
- Refer to REMOVING THE SEAL FOR THE HOOD REAR .
- 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 WINDSHIELD PANEL COVER .
- Refer to REMOVING TRAILING LINK AT SPRING BOLT .
- Refer to REMOVING THE CENTER COWL UPPER PART .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING ACOUSTIC COVER AT REAR .
- Refer to RELEASING THE HIGH-VOLTAGE CABLES ON THE EME .
- Refer to REMOVING THE CENTER BULKHEAD LOWER PART .
- Refer to REMOVING BOTH ACTUATORS .
- Refer to REMOVING THE CLEAN AIR PIPE WITH THE RESONATOR .
- Refer to REMOVING CHARGE AIR LINE .
- Refer to REMOVING THE ACOUSTIC COVER FOR THE ENGINE AT THE FRONT .
- Refer to REMOVING ALL IGNITION COILS .
- Refer to REMOVING THE CYLINDER HEAD COVER ACOUSTIC COVER .
- Refer to REMOVING THE HIGH PRESSURE LINE BETWEEN THE HIGH PRESSURE PUMP AND THE RAIL .
- Refer to REMOVING FUEL DELIVERY LINE .
- Refer to REMOVING THE RAIL WITH INJECTORS .
- Refer to REMOVING HIGH PRESSURE PUMP .
Bolts of the cylinder head cover
1 Bolts of the cylinder head cover
A Cylinder head cover
15
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) .