Spark Plugs
#4
MBWorld Fanatic!
Join Date: Jan 2013
Location: Toronto, Canada
Posts: 3,728
Received 796 Likes
on
547 Posts
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
Unless you have heavily modified the engine and need to run a colder plug, use the stock NGKs (ILZKAR7A10).