Removing the screw plug on the cylinder head
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WARNING:
Hot surfaces
.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
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.
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).
Preliminary work
- Refer to BRINGING FRONT COMPARTMENT LID IN THE SERVICE POSITION .
- Refer to DISCONNECTING THE NEGATIVE BATTERY CABLE OF THE SYSTEM BATTERY .
- Refer to REMOVING SUSPENSION CROSS-BRACE .
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING THE UPPER FIREWALL COVER PANEL .
- Refer to REMOVING THE REAR BULKHEAD .
- Refer to REMOVING THE INTAKE MANIFOLD FOR INTAKE SILENCER HOUSING .
- Refer to REMOVING INTAKE SILENCER HOUSING .
- Refer to IF INSTALLED: PARTIALLY REMOVING THE ENGINE VENTILATION LINE .
- Refer to REMOVING CLEAN AIR PIPE .
- Refer to REMOVING THE LAMBDA OXYGEN SENSOR .
- Refer to REMOVING THE OXYGEN SENSOR MONITOR .
- Refer to REMOVING FRONT CROSS CONNECTION .
- Refer to REMOVING FAN COWL WITH ELECTRIC FAN .
- Refer to REMOVING THE SERVOMOTOR FOR THE ECCENTRIC SHAFT .
- Refer to REMOVING TANK VENT VALVE .
- Refer to REMOVING THE INTAKE PLENUM .
- Refer to REMOVING FRONT RIGHT WHEEL .
- Refer to REMOVING THE FRONT RIGHT WHEEL ARCH COVER .
- Refer to PARTIALLY REMOVING THE FRONT WHEEL ARCH COVER .
- Refer to REMOVING THE FRONT UNDERBODY PROTECTION .
- Refer to REMOVING THE WASHER FLUID RESERVOIR FROM THE MOUNT .
- Refer to IF INSTALLED: REMOVING THE RIGHT BRAKE AIR DUCT .
- Refer to REMOVING THE RIGHT CHARGE AIR DUCT BETWEEN THE EXHAUST TURBOCHARGER AND THE CHARGE AIR COOLER .
- Refer to REMOVING THE DRIVE BELT FOR ALTERNATOR .
- Refer to REMOVING THE ALTERNATOR .
- Refer to DRAINING THE COOLANT FROM THE COOLANT CIRCUIT .
- Refer to REMOVING THE COOLANT LINE BETWEEN THE COOLANT PUMP AND CYLINDER HEAD .
- Refer to REMOVING THE CONNECTING SUPPORT FROM THE TUNNEL AT FRONT AND REAR .
- Refer to REMOVING THE CROSS STRUT WITH THE TORSION STRUT .
- Refer to REMOVING EXHAUST SYSTEM .
- Refer to REMOVING FRONT HEAT SHIELD .
- Refer to REMOVING HEAT SHIELD AT REAR .
- Refer to REMOVING PROP SHAFT .
- Refer to REMOVING THE RIGHT REAR STRUT BRACE .
- Refer to REMOVING CATALYTIC CONVERTER .
- 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 a standard thread file (1) .
Check
- Check thread pitch (B) with the thread file.
Result
» Thread pitch = 1.0
Measure
- Replace cylinder head.
Check
- Check thread pitch (A)
with the thread file.
Result
» Thread pitch = 1.5
Measure
- Carry out the next step.
- Release screw plugs (1) .
- Guide out and remove screw plugs (1) .