Introduction
Applicable to H4D and H4Bt engines (M281 E10 and M281 E09)
It is advisable to do this operation on a cold engine.
Recommendations :
Replace every: 60,000km/4 years (Iridium) or 20,000km (Copper/Nickel).
Electrode gap: 0.8mm (varies depending on the spark plug model considered)
H4Bt: Iridium spark plugs mandatory.
H4D: you may favor Iridium spark plugs if using E85.
See Wiki for more info.
Tools
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Unscrew the 6 T50 screws by hand or using a wrench and a socket.
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Lift and put aside the engine hood.
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Disconnect and put aside the oil vapors duct.
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Disconnect the ignition coils' connector.
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Unscrew each 8mm bolts of the 3 ignition coils.
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Gently extract the ignition coils.
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Put back the ignition coils on the spark plugs.
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Torque each of the 3 ignition coils' 8mm bolts at 10 N.m.
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Reconnect the ignition coil's connectors.
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Congratulations ! You replaced you spark plugs/ignition coils !
2 comments
Coucou Antonio, recois-tu mes mails ?
Fra San -
Coucou, je reçois bien tes mails à l'adresse suivante:
antoniotwingo@proton.me