Spark Plug recommendations
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Junior Member
Joined: Aug 2016
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E 350 4-matic
Spark Plug recommendations
Good morning, I have a 2011 E350 4-matic with 57,500 miles. Since it's close to spark plug time, I am wondering what brand and type of plugs. I have been told Bosch, NGK and Denso. After brand should I get platinum or iridium?
Thanks for the help.
Thanks for the help.
MBWorld Fanatic!
Joined: Oct 2014
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2011 E-350 4Matic Sport
There's a lot of threads on plugs - search if you need more details but the 2 oem suppliers are:
Bosch platinum plugs YR7MPP33
NGK Laser Platinum Plug PLKR7A
I changed my plugs at about the same miles and the originals looked good, had plenty of life left. But that's ok, the diy cost is pretty small. I used Bosch but to be honest based on feedback about mileage, if I did it again I would go with the NGK. Both are good performance wise but several have seen mileage drop with Bosch. In my case there were no issues but worth a mention.
Be sure to torque to spec.
Bosch platinum plugs YR7MPP33
NGK Laser Platinum Plug PLKR7A
I changed my plugs at about the same miles and the originals looked good, had plenty of life left. But that's ok, the diy cost is pretty small. I used Bosch but to be honest based on feedback about mileage, if I did it again I would go with the NGK. Both are good performance wise but several have seen mileage drop with Bosch. In my case there were no issues but worth a mention.
Be sure to torque to spec.
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
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From: Miami, FL
2003 CL 600
I've used NGK plugs in every type of engine/car, and never had a single issue. There's a reason they build OEM plugs for so many manufacturers. Bosch stuff is good too, but I would never go with anything else if NGK is an option for that engine.
