Upgrade spark plugs for tune Mercedes
im not falling for this trolling again as i remember the infamous "i thank we have a problem" oil heating thread you started... although it did end up pretty funny in the end

https://mbworld.org/forums/w212-amg/...e-problem.html
and yes me and many others on this forum already knew that our plugs are indexed (see spark plug change DIY below)
https://mbworld.org/forums/w212-amg/...8-biturbo.html
Currently with a 2012 CLS63 with 55k w/ Eurocharged Stage 2 tune for roughly 10k miles...getting a rough idle and stuttering when I give gas with CEL. Cylinder 1&5 misfire according to scanner.
So, it's looking like I need sparkplugs - Eurocharged (Canada) says they did a lot of trial and error to choose these Stage 2 colder plugs and won't reveal the brand etc they use - they charge $28USD per plug. Should I go with those or are they not necessary?
They also recommended getting my coils changed due to the mileage. They charge $70USD per coil, but I found the same ones online for $45 each.
Any recommendations are appreciated. TID
Currently with a 2012 CLS63 with 55k w/ Eurocharged Stage 2 tune for roughly 10k miles...getting a rough idle and stuttering when I give gas with CEL. Cylinder 1&5 misfire according to scanner.
So, it's looking like I need sparkplugs - Eurocharged (Canada) says they did a lot of trial and error to choose these Stage 2 colder plugs and won't reveal the brand etc they use - they charge $28USD per plug. Should I go with those or are they not necessary?
They also recommended getting my coils changed due to the mileage. They charge $70USD per coil, but I found the same ones online for $45 each.
Any recommendations are appreciated. TID
gave me better performance than the plugs they sold me.
The Best of Mercedes & AMG
EDIT
wow I really have to start looking at the post date before responding
I just got a Stage 2 plus tune
I was going to do NGK97506 gapped to 0.22 before loading the tune. But everyone including Eurocharged Houston has said "Try out the tune first, if it runs fine don't worry about it".
So I guess I will do that; save my money, and see if it misfires.

E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
which cylinder did the misfire occur w/your Ams tune?
How many miles on your tune??
Did new coils fix the problem??
Heard good things about the ams / m157 tune reliability on new stock plugs,so am curious what causes your issue if you don’t mind sharing. Thx
which cylinder did the misfire occur w/your Ams tune?
How many miles on your tune??
Did new coils fix the problem??
Heard good things about the ams / m157 tune reliability on new stock plugs,so am curious what causes your issue if you don’t mind sharing. Thx










