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Misfire help please

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Old Feb 19, 2026 | 06:29 AM
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From: Brooklyn park , MD
Mercedes-benz C300 2011 4matic sports
Misfire help please

I have a misfire on cylinder 5 but I just changed the spark plug . What else could it be? Also the cylinder bank 2 code is gone this was when I was switched the spark plug. Cleared the codes but the misfire on cylinder 5 is still stored and current . What should I check?
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Old Feb 19, 2026 | 06:54 AM
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W204 C250 Sport (AMG Package with Pano Roof)
Originally Posted by Gkbrans

I have a misfire on cylinder 5 but I just changed the spark plug . What else could it be? Also the cylinder bank 2 code is gone this was when I was switched the spark plug. Cleared the codes but the misfire on cylinder 5 is still stored and current . What should I check?
Logically it could be a coil pack. Try moving #5 coil pack to another cylinder and see if the misfire follows it.
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Old Feb 19, 2026 | 08:13 AM
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Mercedes-benz C300 2011 4matic sports
Originally Posted by gav24v
Logically it could be a coil pack. Try moving #5 coil pack to another cylinder and see if the misfire follows it.
Got it , I’ll attempt it when I get home from work. Just in case it’s not what else should I keep a lookout for?
I was driving normally without no codes and healthy engine .
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Old Feb 19, 2026 | 01:01 PM
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W204 C250 Sport (AMG Package with Pano Roof)
Originally Posted by Gkbrans
Got it , I’ll attempt it when I get home from work. Just in case it’s not what else should I keep a lookout for?
I was driving normally without no codes and healthy engine .
I have had two coil packs fail on my 2013 C250. The odds are good that this is your issue. OEM coil packs are readily available.
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