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

Coil Packs

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Old 06-22-2016, 09:16 AM
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2007 S550
Coil Packs

When is recommended to change coil packs for S550

Also what kind of spark plugs are best when changing plugs.
Old 06-22-2016, 10:15 AM
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2015 S550
Originally Posted by Boriqua935
When is recommended to change coil packs for S550

Also what kind of spark plugs are best when changing plugs.
No need to change the coil packs until they fail. Also, use the stock plugs. Nothing aftermarket will perform any better.
Old 06-22-2016, 10:35 AM
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2007 S550
Coil packs

Thanks

Originally Posted by DaveW68
No need to change the coil packs until they fail. Also, use the stock plugs. Nothing aftermarket will perform any better.

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