Spark plug socket size for 2016 276




Purchased at local dealer . Friendly service advisor ( former mechanic) said that even though I am doing the work myself ,if I get the parts from dealer they will never question a warranty claim if it comes up.( like a misfire)
So.. the plugs do not have the familiar six sided hex. Searches on amazon and fcp, and other forums alternately specify 14mm thin wall ,16mm thin wall ,and 5/8 sockets.
All advice appreciated . I learned my shade tree mechanic skills on Detroit iron. So excuse my ignorance. Sill learning metric sizing
Last edited by Alandf; Jan 17, 2021 at 02:50 AM. Reason: added fact




Purchased at local dealer . Friendly service advisor ( former mechanic) said that even though I am doing the work myself ,if I get the parts from dealer they will never question a warranty claim if it comes up.( like a misfire)
So.. the plugs do not have the familiar six sided hex. Searches on amazon and fcp, and other forums alternately specify 14mm thin wall ,16mm thin wall ,and 5/8 sockets.
All advice appreciated . I learned my shade tree mechanic skills on Detroit iron. So excuse my ignorance. Sill learning metric sizing
Ah, it's a special 12 point 14mm socket, also used by select BMW'shttps://www.fcpeuro.com/products/12-point-bmw-spark-plug-socket-14mm
Last edited by Left Coast Geek; Jan 17, 2021 at 03:31 AM.





At my age, I thought I had all the hand tools I would ever need, plus 3x duplicates. But I guess not.
At my age, I thought I had all the hand tools I would ever need, plus 3x duplicates. But I guess not.
Purchased at local dealer . Friendly service advisor ( former mechanic) said that even though I am doing the work myself ,if I get the parts from dealer they will never question a warranty claim if it comes up.( like a misfire)
So.. the plugs do not have the familiar six sided hex. Searches on amazon and fcp, and other forums alternately specify 14mm thin wall ,16mm thin wall ,and 5/8 sockets.
All advice appreciated . I learned my shade tree mechanic skills on Detroit iron. So excuse my ignorance. Sill learning metric sizing
Intake manifold does not need to be removed. I did the job on a W166 in about 4 hours. Next time probably 3 hours. The passenger side plugs are easy, the driver's side plugs are a bear.
Search YouTube for Senior Leigh's videos. He is user @39039 on this site. He has a tool list. My W166 GLE ownership report thread also documents all of this.
This topic is covered ad nauseum. It's a DIY job for sure, if you know what you are doing.
Intake manifold does not need to be removed. I did the job on a W166 in about 4 hours. Next time probably 3 hours. The passenger side plugs are easy, the driver's side plugs are a bear.
Search YouTube for Senior Leigh's videos. He is user @39039 on this site. He has a tool list. My W166 GLE ownership report thread also documents all of this.
This topic is covered ad nauseum. It's a DIY job for sure, if you know what you are doing.
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linked just a couple posts up is https://en.leighsr.com/spark-plugs-replace-m276
which lists all the tools he used.




which lists all the tools he used.
Thanks !!
https://mbworld.org/forums/search.php?searchid=26790890




https://mbworld.org/forums/search.php?searchid=26790890




