Remove injectors
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.
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 DEACTIVATING VEHICLE-SPECIFIC HIGH-VOLTAGE OR LOW-VOLTAGE VEHICLE ELECTRICAL SYSTEM .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING THE INTAKE FILTER HOUSING ON THE LEFT .
- Refer to REMOVING THE LEFT INTAKE SILENCER BRACKET .
- Refer to REMOVING IGNITION COIL OF CYLINDER BANK 2 .
- Refer to REMOVING RAIL FROM BANK 2 .
- Refer to DISCONNECTING PLUG CONNECTIONS OF THE INJECTORS OF CYLINDER BANK 2 .
NOTE:
RISK OF DAMAGE
Damage to injectors.
Excessive force may damage the injector and this means having to replace the injector.
Damage to injectors.
Excessive force may damage the injector and this means having to replace the injector.
- Twist the injectors with a torsional movement of maximum 13 Nm.
NOTE:
The description is provided only at one component. The procedure is the same for all other components.
NOTE:
To provide a better overview: Shown with engine removed.
- Loosen screw (1).
- Remove hold-down device (2).
- Pull injectors upward out of cylinder head and remove.
If several injectors are removed, ensure that each injector is reinstalled in its original installation location (cylinder):
- Mark injectors.
NOTE:
TECHNICAL INFORMATION
To not exceed the maximum tensile force of 2000 N when pulling out the fixed injectors: Use special tool 2 410 777! Using a correctly adjusted torque wrench and special tool 2 410 777 ensures that the maximum tensile force of 2000 N will not be exceeded at the injectors.
The injector must be replaced if the torque wrench clicks when the injector is pulled out.
To not exceed the maximum tensile force of 2000 N when pulling out the fixed injectors: Use special tool 2 410 777! Using a correctly adjusted torque wrench and special tool 2 410 777 ensures that the maximum tensile force of 2000 N will not be exceeded at the injectors.
The injector must be replaced if the torque wrench clicks when the injector is pulled out.
- Unscrew the pull-out thread (1) from the special tool 0 496 885 (13 0 320) .
- Screw in the pull-out thread (1) from special tool 0 496 885 (13 0 320) into special tool 2 410 777 .
- Lightly oil the pull-out thread (1) before using the special tool 2 410 777
and unscrew completely as shown.
The pull-out threads (1) are left-hand threads.
- Position the special tool 2 410 777 on the injector shaft.
- Screw in the screws (1) on the injector shaft for a few thread starts.
- Fully screw in the pull-out thread (2).
- Screw on the threaded sleeves (1) on to the injectors until the retaining pin (2) grips.
- Tighten the screws (2) and (3) of the special tool (1) 2 410 777
.TIGHTENING TORQUE SPECIFICATION
Special tool 2 410 777 to injector well M6 tightening torque 8 Nm - Check whether the pull-out threads (4) are fully screwed in.
- Check whether the threaded sleeves (5) at the injectors are screwed on and retained.
- Adjust the torque wrench to 13 Nm in a clockwise rotation.
- Position the torque wrench (1) and the special tool (2) 0 496 106 (11 8 720) on the hexagon head (3) of the special tool 2 410 777 .
- Turn the torque wrench (1) in the direction of arrow until the injector is extracted.
If the torque wrench clicks while pulling the injector out, then the injector must be replaced!
- Disassemble the special tool 2 410 777 and remove the injector.