Misfires and a CEL... Apparently a known issue
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
Likes: 1,012
From: Miami, FL
2003 CL 600
There's no way to ever have that happen, if the car had to be 100% reliable the cost would be astronomical. Also, buyers always want the newest and best of everything, so they release the updated parts as soon as they are ready and improve as they go, this is standard across most manufacturers in the premium segments. What sells and what is reliable aren't always the same thing.
MBWorld Fanatic!
Joined: May 2017
Posts: 1,726
Likes: 605
From: Southern California
2018 E63S AMG
Depends on your state and whether you purchased or leased.
Steve Lehto is an attorney in Michigan who specializes in lemon law work and has made a number of videos on the topic. Generally entertaining for other topics as well, but has a lot of car and law related content. https://www.youtube.com/channel/UCMl...BJrxbUorWEnasg
Steve Lehto is an attorney in Michigan who specializes in lemon law work and has made a number of videos on the topic. Generally entertaining for other topics as well, but has a lot of car and law related content. https://www.youtube.com/channel/UCMl...BJrxbUorWEnasg
Junior Member
Joined: Jun 2018
Posts: 42
Likes: 6
2018 E63 AMGs
@v70cat All depends on where you are located. There are different calculations defining a lemon in each state. Google machine will be your best answer.
According to some others on the forum there is a known fix for the 1,6 misfire CEL.
According to some others on the forum there is a known fix for the 1,6 misfire CEL.
Senior Member
Joined: Jul 2018
Posts: 291
Likes: 16
535XIT, E63S
It seems like MB is stalling and I need to hire a NYS lawyer, any suggestions?
Newbie
Joined: Jan 2021
Posts: 1
Likes: 0
Mercedes E63S
I've had a similar issue on my E63S here in the UK with 28,000 miles. I've got repeated misfires in more than one cylinder, including cylinder 1. It's also reporting fuel pressure and EGR issues, though those may be red herrings caused by the misfire. I bought it second hand only 2 weeks ago. Fortunately the Consumer Rights Act 2015 covers me to get a full refund given that the car is faulty.
Thanks for sharing your experiences - it's been a huge help it helping me decide the best course of action. Sorry to hear that it's affected so many of you so badly.
While doing research, I found that the NHTSA website has an incredible set of resources. In particular, related to this issue are these two docs:
https://static.nhtsa.gov/odi/tsbs/20...58383-9999.pdf
https://static.nhtsa.gov/odi/tsbs/20...60711-9999.pdf
In summary: intake system leak and/or exhaust system leak and/or ignition coils and/or grounding problem and/or high pressure fuel pump problem and/or injector fault and/or something else tbd.
I hope that helps someone or their mechanic.
It is a huge shame as apart from this misfire issue that affects some proportion of units, the engine seems to have a great reputation for being reliable.
Thanks for sharing your experiences - it's been a huge help it helping me decide the best course of action. Sorry to hear that it's affected so many of you so badly.
While doing research, I found that the NHTSA website has an incredible set of resources. In particular, related to this issue are these two docs:
https://static.nhtsa.gov/odi/tsbs/20...58383-9999.pdf
https://static.nhtsa.gov/odi/tsbs/20...60711-9999.pdf
In summary: intake system leak and/or exhaust system leak and/or ignition coils and/or grounding problem and/or high pressure fuel pump problem and/or injector fault and/or something else tbd.
I hope that helps someone or their mechanic.
It is a huge shame as apart from this misfire issue that affects some proportion of units, the engine seems to have a great reputation for being reliable.
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Junior Member
Joined: Sep 2018
Posts: 15
Likes: 13
E63S Wagon
I had multiple misfires on my car recently, followed by the CEL. I took the car into our dealership, and they ran through several checks including a suspected failed coil pack. They ultimately focused on the plumbing around the turbos where a hose or clamp had come loose and they redid those and alluded to this was a known issue. Its been about a month since they fixed it and no issues to date.
Newbie
Joined: Jul 2021
Posts: 1
Likes: 0
mercedes E63s 2018
2018 E63s Misfire
Hi I’m new on the forum I’ve purchased my car 4 weeks ago it has 34k miles and suddenly it has started to misfire took it to the dealers the said it could be the fuel so I drained the fuel out and replaced it again with Vpower but still misfiring can anyone help me please
MBWorld Fanatic!
Joined: Feb 2007
Posts: 2,550
Likes: 745
From: Cary, NC
2024 AMG EQE SUV , 2021 E63S Wagon - gone, 2018 E63S Sedan - gone
Hi I’m new on the forum I’ve purchased my car 4 weeks ago it has 34k miles and suddenly it has started to misfire took it to the dealers the said it could be the fuel so I drained the fuel out and replaced it again with Vpower but still misfiring can anyone help me please
Junior Member
Joined: Aug 2017
Posts: 74
Likes: 16
From: Florida
2013 C300 Sport, 2019 E63S wagon, 2021 GLS 580
If you’re in the U.S. you can go to www.mbusa.com/recall, enter your VIN, and it will tell you what recalls your vehicle has outstanding.
I’m sure other countries/regions have a similar tool.
I’m sure other countries/regions have a similar tool.
MBWorld Fanatic!
Joined: May 2017
Posts: 1,726
Likes: 605
From: Southern California
2018 E63S AMG
My car had experienced the CEL and misfires occasionally. It was in to the dealership where they went through an extensive set of tests in coordination with Germany. The injectors were swapped around and recalibrated, among other things. That did stop the problem for a while, then it came back one time briefly, which may have been due to seasonal gas here in CA.
Since the recall to address the CELs, which was required that I install here in CA by the DMV in order to renew my registration, I have not had any further issues.
I do think the that car drives a bit more herky jerky at low speeds in Comfort mode when cold since the firmware update recall . . . maybe just my imagination but feels like it.
Since the recall to address the CELs, which was required that I install here in CA by the DMV in order to renew my registration, I have not had any further issues.
I do think the that car drives a bit more herky jerky at low speeds in Comfort mode when cold since the firmware update recall . . . maybe just my imagination but feels like it.
Senior Member
Joined: Jul 2018
Posts: 291
Likes: 16
535XIT, E63S
MBWorld Fanatic!
Joined: May 2017
Posts: 1,726
Likes: 605
From: Southern California
2018 E63S AMG
Yes, reread my post immediately above your post. I mention the recall that addresses the misfire CEL issue. As far as I know, the issue has been solved for at least a year now.
Newbie
Joined: Aug 2021
Posts: 7
Likes: 4
E 63S, GLS 450 CLK 350 C280
CHECK ENGINE LIGHT / MISFIRING
Today makes it two weeks since I last saw my E63s. A check engine light and the concierge service took it in. The dealers foreman keeps going from one excuse to another. I am wondering what options I have. I traded in a 12 month old 19 E53 for this '18 E63s with 20000 miles. Used it for barely 2000 miles. Anyone with relevant advice?
Super Member
Joined: Jun 2010
Posts: 822
Likes: 160
2018 E63S Wagon
Today makes it two weeks since I last saw my E63s. A check engine light and the concierge service took it in. The dealers foreman keeps going from one excuse to another. I am wondering what options I have. I traded in a 12 month old 19 E53 for this '18 E63s with 20000 miles. Used it for barely 2000 miles. Anyone with relevant advice?
Junior Member
Joined: Nov 2023
Posts: 31
Likes: 13
2018 S63, 2009 SL 550, 2024 Rubicon 392, 1998 BMW 328 IC
2018 S63 CEL at dealer now 2 months!
I'm having the same nightmare as many have described. Car has 20,000 miles and is out of warranty. Mine was declared a lemon and bought back. Presumably fixed by MB when I came along and outfit I bought it from said it was some minor software issue. I took it to a MB dealer for a full pre-sale inspection and it was declared to be perfectly fine. It was for a couple of years and then the nightmare began. CEL and limp mode. Light is on solid. If you shut down the engine it stops limping unless you accelerate hard and then you wish you owned a different car. So, off to the dealer. That was two months ago and it is still sitting there -- outside, not pristine in my garage. Sucks. They are doing all the tests, new plugs, new coils, injectors, smoke test this test and that test. Worst part is it's an open ticket like at the bar and the whole place is ordering the finest scotch with no end in sight. They are "talking to Germany" now after weeks and weeks of going through all the steps and coming up with no reason. Latest is Germany says to replace the engine control unit for $2200 and I have to agree to buy it regardless of whether it fixes the problem. How does that jingle go? The best or nothing? I got nothing but headaches and costs. I have a case open with MB NA for what good that does. I think they just send notes to the dealer that the customer is unhappy. I'm ready to get rid of it if they ever fix it because I suspect it will crop up again. They gave me a loaner -- some new econo sedan benz. It pretty much sits in the driveway and I use my other car but I am a very unhappy camper.
MBWorld Fanatic!
Joined: Jul 2013
Posts: 2,594
Likes: 811
From: Toronto, Ont, Canda
go fast grocery getter wagon
It’s crazy when they are throwing all kinds of parts into it. Is your loaner covered by dealer ? When i had mine in the shop for RMS, it took 1 month for dealer is get the parts and i had to pay for my own rental… but dealer did offer to cover 40% of my rental costs in the end as goodwill.
Junior Member
Joined: Nov 2023
Posts: 31
Likes: 13
2018 S63, 2009 SL 550, 2024 Rubicon 392, 1998 BMW 328 IC
2018 S63 CEL at dealer now 2 months!
They haven't said anything about returning the loaner or me paying for it. The last I heard is they got the new ECU module but it refuses to program so back they went to Germany with a new case number. What a PIA. I keep asking myself and them what good the CEL is if it doesn't tell them specifically what the hell is wrong. Seems like it should be called a BCL -- BLANK CHECK LIGHT!
Senior Member
Joined: Jul 2018
Posts: 291
Likes: 16
535XIT, E63S
Germany
From what I can tell the dealer mechanics are forced to follow steps/tests dictated by Germany.
It is time consuming and probably frustrating for all.
Question, since the check engine light is part of the emissions system is it covered by a ten year warranty?
It is time consuming and probably frustrating for all.
Question, since the check engine light is part of the emissions system is it covered by a ten year warranty?
MBWorld Fanatic!
Joined: Feb 2007
Posts: 2,550
Likes: 745
From: Cary, NC
2024 AMG EQE SUV , 2021 E63S Wagon - gone, 2018 E63S Sedan - gone
I'm having the same nightmare as many have described. Car has 20,000 miles and is out of warranty. Mine was declared a lemon and bought back. Presumably fixed by MB when I came along and outfit I bought it from said it was some minor software issue. I took it to a MB dealer for a full pre-sale inspection and it was declared to be perfectly fine. It was for a couple of years and then the nightmare began. CEL and limp mode. Light is on solid. If you shut down the engine it stops limping unless you accelerate hard and then you wish you owned a different car. So, off to the dealer. That was two months ago and it is still sitting there -- outside, not pristine in my garage. Sucks. They are doing all the tests, new plugs, new coils, injectors, smoke test this test and that test. Worst part is it's an open ticket like at the bar and the whole place is ordering the finest scotch with no end in sight. They are "talking to Germany" now after weeks and weeks of going through all the steps and coming up with no reason. Latest is Germany says to replace the engine control unit for $2200 and I have to agree to buy it regardless of whether it fixes the problem. How does that jingle go? The best or nothing? I got nothing but headaches and costs. I have a case open with MB NA for what good that does. I think they just send notes to the dealer that the customer is unhappy. I'm ready to get rid of it if they ever fix it because I suspect it will crop up again. They gave me a loaner -- some new econo sedan benz. It pretty much sits in the driveway and I use my other car but I am a very unhappy camper.
