W212 AMG Discuss the W212 AMG's such as the E63

No CEL catless downpipes without a tune. Anyone successful?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Sep 25, 2022 | 07:40 PM
  #1  
kenneyd's Avatar
Thread Starter
Super Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2011
Posts: 878
Likes: 638
poop
No CEL catless downpipes without a tune. Anyone successful?

With nothing else changed, installing catless downpipes will obviously trigger a check engine light.
Has anyone successfully found a way around this?
I ask because in other platforms, for example my f430, people have either installed extenders, mini cats, 02 sims etc etc and have successfully avoided a CEL.
I could not find any examples of people trying that here however so I figured I would ask.
Option two, which I would love to pursue if possible, is to code out the rear O2 sensors with xentry. Anyone here do that?
Believe the way all the tuners do it has to do with changing and a setting for the o2 readiness.

I've started doing the research, just figured I'd check to see if anybody else has already done the homework.

Reply
Old Sep 25, 2022 | 08:48 PM
  #2  
PeterUbers's Avatar
Out Of Control!!
 
Joined: Jun 2004
Posts: 13,799
Likes: 3,228
2014 E63S; AMS 100 octane ECU dyno tune; EDOK TCU tune; BB intakes; sprintbooster
Contemplated this mod and referenced this:

https://mbworld.org/forums/w212-amg/...need-help.html

summary
- some tuners can dial it out
- can't with xentry
- spacers are hit or miss
​​​​​​- spacers sometimes work for months then stop working
- no one spacer that works ... universally works for all
Reply
Old Sep 26, 2022 | 09:10 AM
  #3  
I.T. Guy's Avatar
MBWorld Fanatic!
15 Year Member
Shutterbug
Loved
Community Favorite
 
Joined: Mar 2011
Posts: 2,496
Likes: 1,574
From: Canada
2023 E63S Wagon



Reply
Old Sep 26, 2022 | 03:39 PM
  #4  
I.T. Guy's Avatar
MBWorld Fanatic!
15 Year Member
Shutterbug
Loved
Community Favorite
 
Joined: Mar 2011
Posts: 2,496
Likes: 1,574
From: Canada
2023 E63S Wagon
They tried here too
https://mbworld.org/forums/w212-amg/793232-o2-spacers-work.html
https://mbworld.org/forums/w212-amg/734990-o2-spacers.html
Reply
Old Sep 26, 2022 | 04:06 PM
  #5  
kenneyd's Avatar
Thread Starter
Super Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2011
Posts: 878
Likes: 638
poop
Gotcha.
I'm going to look through vediamo and see if the heater parameters can be altered
Reply
Old Jul 13, 2023 | 12:01 AM
  #6  
MACEDON's Avatar
MBWorld Fanatic!
 
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
Did anything come out of this? Did you figure it out? I want to go catless with no tune as well.
Reply
Old Jul 13, 2023 | 12:02 AM
  #7  
MACEDON's Avatar
MBWorld Fanatic!
 
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
Whoa bro you're that one guy 😯
Reply
Old Jul 13, 2023 | 10:54 AM
  #8  
BCP's Avatar
BCP
Senior Member
 
Joined: Feb 2020
Posts: 352
Likes: 128
From: Northern Va
2014 E63s
Would definitely be interested - trying to get my car to pass the test has been a hassle to say the least.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old Jul 13, 2023 | 02:27 PM
  #9  
cold bud3's Avatar
Junior Member
Liked
 
Joined: May 2021
Posts: 73
Likes: 18
From: Schaumburg, Illinois, USA
2015-E63S | 2012-C300
Originally Posted by BCP
Would definitely be interested - trying to get my car to pass the test has been a hassle to say the least.
interesting, because my 2015 e63s doesn't require emissions testing at all. (Illinois)
Reply
Old Jul 13, 2023 | 03:04 PM
  #10  
BCP's Avatar
BCP
Senior Member
 
Joined: Feb 2020
Posts: 352
Likes: 128
From: Northern Va
2014 E63s
Originally Posted by cold bud3
interesting, because my 2015 e63s doesn't require emissions testing at all. (Illinois)
Lucky you, but it’s due to the local laws in your area. Where I live, the car needs to be tested.
Reply
Old Jul 13, 2023 | 03:54 PM
  #11  
MACEDON's Avatar
MBWorld Fanatic!
 
Joined: Apr 2017
Posts: 1,120
Likes: 80
From: Tampa Bay, FL
05 E55, 98 CLK320
Originally Posted by BCP
Lucky you, but it’s due to the local laws in your area. Where I live, the car needs to be tested.
Florida is the last freedom state.

Hopefully it doesn't change soon

Surely with almost every other car being a Tesla or EV on the road we are already making a great reduction in CO2 emissions, no?

I mean, look at how many dirty ICE engines are off the roads, surely we don't have to scrutinize emissions from our cars, we can relax and make a few more V8 engines this decade


Or... Is it maybe that the emissions aren't lowered with all the EV's out there... hmmm...
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 04:47 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE