Removing all spark plugs
Preliminary work
- Refer to REMOVING THE ACOUSTIC COVER .
- Refer to REMOVING IGNITION COILS .
WARNING:
Hot surfaces
.
Risk of burning!
Risk of burning!
- Perform all work only on components that have cooled down.
CAUTION:
Swirling dirt particles caused by compressed air
.
Injury hazard!
Injury hazard!
- Collect dirt particles, e.g. when blowing out, use cloth to do so.
- Wear safety goggles.
NOTE:
TECHNICAL INFORMATION
Clean spark plug slot with compressed air .
The spark plug shafts must be cleaned using compressed air after having removed the ignition coils and before removing the spark plugs. After removing the spark plugs, check the sealing surface again for dirt contamination and if necessary, clean with a damp cloth or again with compressed air.
Deposits that have not been removed as prescribed can reach the combustion chamber and cause uncontrolled combustion there. Remaining deposits on the spark plug sealing surfaces may lead to leaks and the spark plugs may come loose during engine operation.
Spark plug threads must not be greased or oiled. Insufficiently tightened spark plugs may cause leaks and the sparks plugs may come loose during engine operation.
Clean spark plug slot with compressed air .
The spark plug shafts must be cleaned using compressed air after having removed the ignition coils and before removing the spark plugs. After removing the spark plugs, check the sealing surface again for dirt contamination and if necessary, clean with a damp cloth or again with compressed air.
Deposits that have not been removed as prescribed can reach the combustion chamber and cause uncontrolled combustion there. Remaining deposits on the spark plug sealing surfaces may lead to leaks and the spark plugs may come loose during engine operation.
Spark plug threads must not be greased or oiled. Insufficiently tightened spark plugs may cause leaks and the sparks plugs may come loose during engine operation.
NOTE:
TECHNICAL INFORMATION
In order to avoid an uncontrolled flashover of ignition sparks, special attention must be paid to the cleanliness of the insulator (ceramic) of the spark plugs.
The insulator of the spark plug must not be touched with the fingers or labeled and must also not come into contact with liquid media such as fuel or oil.
Always handle spark plugs at the spark plug thread. Guiding in the spark plugs using a clean hose (assembly aid 12 1 230) is permitted.
In order to avoid an uncontrolled flashover of ignition sparks, special attention must be paid to the cleanliness of the insulator (ceramic) of the spark plugs.
The insulator of the spark plug must not be touched with the fingers or labeled and must also not come into contact with liquid media such as fuel or oil.
Always handle spark plugs at the spark plug thread. Guiding in the spark plugs using a clean hose (assembly aid 12 1 230) is permitted.
NOTE:
TECHNICAL INFORMATION
Only a swiveling extension for the reversible ratchet may be used. Rigid mounting tool and variable plug connections with rigid option may not be used; there is a risk that the insulator breaks.
Only a swiveling extension for the reversible ratchet may be used. Rigid mounting tool and variable plug connections with rigid option may not be used; there is a risk that the insulator breaks.
- Unscrew spark plugs with special tool 0 495 560 (12 1 220) and an extension with joint.