Removing the screw plug at the cylinder head
WARNING:
Hot surfaces.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
NOTE:
TECHNICAL INFORMATION
A hardening time of 24 h must be observed after wetting the screw with the screw locking agent.
During the hardening time, the engine must not be started.
Filling the coolant circuit is only permitted after the hardening time.
A hardening time of 24 h must be observed after wetting the screw with the screw locking agent.
During the hardening time, the engine must not be started.
Filling the coolant circuit is only permitted after the hardening time.
NOTE:
TECHNICAL INFORMATION
The repair solution differs depending on the installed screw plug (different thread pitches).
The repair solution differs depending on the installed screw plug (different thread pitches).
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 REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING THE SEAL FOR THE HOOD REAR .
- Refer to REMOVING ACOUSTIC COVER AT REAR .
- Refer to REMOVING INTAKE SILENCER HOUSING .
- Refer to REMOVING THE CLEAN AIR PIPE WITH THE RESONATOR .
- Refer to REMOVING CHARGE AIR LINE .
- Refer to REMOVING THE FRONT ACOUSTIC COVER FOR THE ENGINE .
- Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE UNDERBODY PROTECTION OF THE STEERING GEAR .
- Refer to IF INSTALLED: REMOVING THE UNDERBODY PROTECTION OF THE STEERING SYSTEM .
- Refer to REMOVING THE CENTER UNDERBODY PROTECTION .
- Refer to REMOVING THE COVER OF THE STEERING ASSEMBLY .
- Refer to DRAINING THE COOLANT FROM THE HIGH-TEMPERATURE COOLING SYSTEM .
- Refer to CONNECTING THE COOLANT LINES FOR THE HIGH-TEMPERATURE COOLANT CIRCUIT .
- Refer to REMOVING THE COOLANT LINE BETWEEN THE COOLANT PUMP AND THE CYLINDER HEAD .
- Refer to REMOVING TANK COVER ON LEFT AND RIGHT .
- Refer to REMOVING STIFFENING STRUT .
- Refer to REMOVING COMPLETE EXHAUST SYSTEM .
- Refer to REMOVING CATALYTIC CONVERTER .
- Refer to REMOVING THE COOLANT FEED LINE FOR THE EXHAUST GAS TURBOCHARGER .
- Refer to REMOVING THE COOLANT RETURNING LINE FOR THE EXHAUST TURBOCHARGER .
- Refer to REMOVING THE OIL RETURN LINE FOR THE EXHAUST TURBOCHARGER .
- Refer to REMOVING EXHAUST TURBOCHARGER .
Screw plug on cylinder head
NOTE:
TECHNICAL INFORMATION
The repair solution differs depending on the installed screw plug (different thread pitches).
The repair solution differs depending on the installed screw plug (different thread pitches).
- Prepare the commercially available thread arrows (1)
.
Check
- Check the thread pitch (B)
with the thread arrows.
Result
» Thread pitch = 1.0
Measure
- Replace cylinder head.
Check
- Check the thread pitch (A)
with the thread arrows.
Result
» Thread pitch = 1.5
Measure
- Carry out the next step.
- Release the screw plugs (1) .
- Guide out and remove the screw plugs (1)
.