C300 spark plugs
Thread Starter
Senior Member
Joined: Feb 2015
Posts: 393
Likes: 25
From: S. Ca.
2015 C300, 2015 F-350 Platinum, 1969 Mach 1 428cj, 2007 Roadking
C300 spark plugs
Just reading thru the maintenance schedule and was really surprised that a modern engine would require 46,500 mile spark plug changes.
MBWorld Fanatic!
Joined: Jan 2015
Posts: 2,075
Likes: 59
From: Manchester, UK
BMW e89 Z4 sDrive 35i & MB S205 C200 AMG Premium Plus
Emissions regulations, efficiency, quality of function and much more play a part here. Old engines didn't care about worn plugs but back then they didn't need to be as efficient and non polluting.
MBWorld Fanatic!
Joined: Mar 2015
Posts: 1,581
Likes: 114
From: Mass
2026 GLE 53 Coupe
Here in the U.S. it's quite common to see 100,000 mile spark plugs in new vehicles...platinum tip or better.
Sounds like yet another ploy from Mercedes to increase profit for the dealerships.
Sounds like yet another ploy from Mercedes to increase profit for the dealerships.
Thread Starter
Senior Member
Joined: Feb 2015
Posts: 393
Likes: 25
From: S. Ca.
2015 C300, 2015 F-350 Platinum, 1969 Mach 1 428cj, 2007 Roadking
If Ford, GM and Mopar can produce 600 horse power engines that meet emmissions and have 100,000 mile plugs you'd think that Mercedes could. Incidentally so does Lexus. I just don't like their cars.
MBWorld Fanatic!
Joined: Mar 2015
Posts: 1,581
Likes: 114
From: Mass
2026 GLE 53 Coupe
Not only that, but Ford for instance designed their EcoBoost turbo engines to run on REGULAR...which is like 30 cents a gallon cheaper than the Super unleaded gas German autos require.
