what are the best spark plugs for a m157 s63
Thread Starter
Newbie
Joined: Dec 2025
Posts: 8
Likes: 0
w222 s63 5.5l
what are the best spark plugs for a m157 s63
looking for new sparkplugs, car is stock currently will be doing mods at some point. Should i go with the weistech, ngk, bosch. I just don’t know what do go with any advice is appreciated.
i was thinking weistech or these ngk plugs https://www.ngk.com/ngk-1555-sizkbr8a8hs-laser-iridium-spark-plug
i was thinking weistech or these ngk plugs https://www.ngk.com/ngk-1555-sizkbr8a8hs-laser-iridium-spark-plug
Last edited by w222s63 wi; Jan 22, 2026 at 09:36 PM.
Thread Starter
Newbie
Joined: Dec 2025
Posts: 8
Likes: 0
w222 s63 5.5l
are these good https://www.ngk.com/ngk-1555-sizkbr8...ium-spark-plug or should i go weistech
Junior Member
Joined: Jan 2019
Posts: 70
Likes: 25
2004 E55
are these good https://www.ngk.com/ngk-1555-sizkbr8...ium-spark-plug or should i go weistech
If your going to be growing into a stage 2 sooner or later then 1 step colder would be an option
SIDE NOTE: Some have used OEM plugs and havent had ANY issues with a stage 2 tune. ( I have no personal evidence of it )
MBWorld Fanatic!
Joined: Feb 2012
Posts: 2,621
Likes: 1,216
From: Phoenix
222 S-65
are these good https://www.ngk.com/ngk-1555-sizkbr8...ium-spark-plug or should i go weistech
In the future I will purchase my plugs from Mercedes.
Thread Starter
Newbie
Joined: Dec 2025
Posts: 8
Likes: 0
w222 s63 5.5l
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,154
Likes: 1,769
From: Colorado
G550
I bought a set of MB OEM plugs for my G550 (M176.980 ) and they were marked with an NGK p/n. Some MB engines require sparkplug indexing, and you can be sure that a MB plug will self index. A Bosch plug might be spec'd as a replacement, but its self indexing is not known, at least not to me.
