Removing Spark Plugs

REPLACING ALL SPARK PLUGS
- Switch off ignition.




Version 1 (acoustic cover screwed down):
- Remove seal caps (1) and unfasten nuts (2).
- Remove acoustic cover.




Version 2 (acoustic cover with press-stud fastener):
- Open press-studs (1 ... 4) one at a time, at the same time lifting the acoustic cover slightly.
- Once all four press-studs have been opened, remove the acoustic cover.

Installation Note: Position acoustic cover and press downwards until press-studs (1 ... 4) click into place.




- Remove sealing caps, unfasten nuts.
- Remove cover from ignition coils.




- Unfasten plug connection.




- Unfasten screws on ignition coils.

Installation Note: Ground straps of cylinder head cover must be secured on ignition coils for cylinders 3 and 6.




- Unscrew and remove spark plugs with special tool 12 1 171.

INSTALLATION:
- Tighten using special tool 12 1 171 and special tool 12 1 200 (torque limiter)

NOTE: Without special tool 12 1 200, tightening torque = 30 - 33 Nm (22 -24 ft lbs)