2017-2018 E400 Spark Plug Change Tutorial/WIS
There isn't one here on mbworld and I couldn't find an official WIS anywhere.
(FWIW, the one on YouTube only shows the "easy plugs." Apparently, doing all six requires removing part of the manifold, but I'm not sure that's entirely true.)
Thanks in advance.
The engine in the E400/E450 uses an M276 variant (DE30 twin turbo).
The instructions may be identical though. I'll check.








