Procedures

287020 Removing and Installing Spark Plugs

Tools

Tools:

Preliminary work

NOTE: To remove and install the wheel bolts use the prescribed special tool socket wrench insert 300.

1. Remove rear wheels.

Removing

Removing spark plugs

Shield For Ignition Coils:

1. Remove the 2 M6 x 20 fastening screws -arrows- for the shields on both cylinder heads and remove the plates.
2. Unplug cable plug for the ignition coils. To do this, slide the rubber grommets upward first. Press locking tabs on the respective ignition coil and pull off the individual plugs. In the interest of better accessibility, unplug the cable plugs for the solenoid hydraulic valves.

Screws For Ignition Coils:

3. Loosen two M6 x 25 fastening screws -arrows- each per ignition coil and remove the 6 ignition coils individually.

ATTENTION: Incorrect tool for changing the spark plugs.
- Ceramic body breaks.
- Only use the approved tool spark plug socket wrench NR.14 and 3/8 inch extension, 16 degree moveable NR.15.

4. Unscrew the spark plugs using the tool spark plug socket wrench NR.14 with 3/8 inch extension, 16 degree movable NR.15.

Installing

Installing spark plugs

ATTENTION: Incorrect tool for changing the spark plugs.
- Ceramic body breaks.
- Only use the approved tool spark plug socket wrench NR.14 and 3/8 inch extension, 16 degree moveable NR.15.

1. Install spark plug with spark plug socket wrench NR.14 and 3/8 inch extension, 16 degree movable NR.15. Tightening torque 22 ftlb.. If the spark plugs will be removed and installed again for another activity, the tightening torque is reduced. Tightening torque 19 ftlb..
2. Insert ignition coils in the spark-plug recesses and tighten using two M6 x 25 fastening screws each. Tightening torque 7.5 ftlb.. Then connect the cable plug and position the rubber grommet on the coils.
3. Insert the shield again and fit using two fastening screws. Tightening torque 7.5 ftlb..

Subsequent work

Reworking

NOTE: To remove and install the wheel bolts use the prescribed special tool socket wrench insert 300.

1. Mount rear wheels.