SL/R230: Spark Plugs 8 or 16 for M273?
#1
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Spark Plugs 8 or 16 for M273?
Hi All,
I know this has been done to death on the forum but for some reason I can't find information on how many spark plugs are needed for a 2009 SL550. I read on multiple threads that you need 16 spark plugs for a V8 but the engine, if I am not mistaken, is the M273. I read that the M272 replaced the twin spark plugs to a single one and videos I've seen of the M273 seem to only require 8 plugs.
Can someone please clarify?
My mechanic quoted me $300 for the job so I'm considering doing it myself if it's only 8 plugs.
Thanks
I know this has been done to death on the forum but for some reason I can't find information on how many spark plugs are needed for a 2009 SL550. I read on multiple threads that you need 16 spark plugs for a V8 but the engine, if I am not mistaken, is the M273. I read that the M272 replaced the twin spark plugs to a single one and videos I've seen of the M273 seem to only require 8 plugs.
Can someone please clarify?
My mechanic quoted me $300 for the job so I'm considering doing it myself if it's only 8 plugs.
Thanks
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alexisvx (02-25-2020)
#3
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