S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

(Video) Replace Spark Plugs of Mercedes M278 W221 S550

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Old 04-07-2021, 03:52 PM
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W221 S550 4MATIC
(Video) Replace Spark Plugs of Mercedes M278 W221 S550

Every 6 years or 60,000 miles we have to replace the spark plugs of our Mercedes, that's requiring of Mercedes maintenance booklet.
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chassis (04-07-2021), DaveW68 (05-03-2021), doni01 (04-07-2021)
Old 05-03-2021, 12:34 PM
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W222
How many miles on the vehicle that requires you to change the ignition coils? Do you change them when there is vibration while idling?
Old 05-07-2021, 12:57 PM
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2012 Mercedes S550 4Matic
Can anyone confirm the gap on an M278 W221 S550?

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