Pops and crackles
Finished running in my facelift C63S Coupe this week, and can confirm a huge difference between this delivered car and the press cars I drove in June at Bilsterberg. If any of you have seen that video, you'll note the difference is pronounced, namely:
In Sport+/Race:
- Quieter sound generally
- Less bangs/pops on overruns/letting off throttle. Occurring only in a very specific rev range (4500/5000)
- Stand still revs, car stops banging after 3-4 initially revs. Needs a break before starting again.
- Worst of all: ZERO bangs/pops/emotion on down shifts
I'm making enquiries within AMG right now and will feed back to anyone who cares, my understanding is this is a software issue where the ECU has been tinkered with incorrectly. My guess would be a fix will come for this eventually, but I can only make a guess for now.
Anyone having the same problem is welcome to DM me on instagram, I'm making a list of cars with build dates and countries to help the guys address this ASAP.
p.s.
Heres the video if anyone wants to confirm:
i look forward to reading what if anything comes from your AMG inquiries. i'm not as much of a “krispy kraver” as others. i favor the rev of this motor and its performance over the deceleration pops, but if the lack of those sounds is a symptom of an underlying issue, i want to know and want it fixed.
Finished running in my facelift C63S Coupe this week, and can confirm a huge difference between this delivered car and the press cars I drove in June at Bilsterberg. If any of you have seen that video, you'll note the difference is pronounced, namely:
In Sport+/Race:
- Quieter sound generally
- Less bangs/pops on overruns/letting off throttle. Occurring only in a very specific rev range (4500/5000)
- Stand still revs, car stops banging after 3-4 initially revs. Needs a break before starting again.
- Worst of all: ZERO bangs/pops/emotion on down shifts
I'm making enquiries within AMG right now and will feed back to anyone who cares, my understanding is this is a software issue where the ECU has been tinkered with incorrectly. My guess would be a fix will come for this eventually, but I can only make a guess for now.
Anyone having the same problem is welcome to DM me on instagram, I'm making a list of cars with build dates and countries to help the guys address this ASAP.
p.s.
Heres the video if anyone wants to confirm: https://youtu.be/AlVHFjez1q4
If anyone here is going to get a reply from AMG on this, it would be you!
Finished running in my facelift C63S Coupe this week, and can confirm a huge difference between this delivered car and the press cars I drove in June at Bilsterberg. If any of you have seen that video, you'll note the difference is pronounced, namely:
In Sport+/Race:
- Quieter sound generally
- Less bangs/pops on overruns/letting off throttle. Occurring only in a very specific rev range (4500/5000)
- Stand still revs, car stops banging after 3-4 initially revs. Needs a break before starting again.
- Worst of all: ZERO bangs/pops/emotion on down shifts
I'm making enquiries within AMG right now and will feed back to anyone who cares, my understanding is this is a software issue where the ECU has been tinkered with incorrectly. My guess would be a fix will come for this eventually, but I can only make a guess for now.
Anyone having the same problem is welcome to DM me on instagram, I'm making a list of cars with build dates and countries to help the guys address this ASAP.
This is what I am experiencing as well on my 19 C63S sedan. My old roommate's non-PE 2017 C63 non-S popped more than mine.
I do get a nice crackle/pop in Race after WOT or after throttle near redline, but not much pops other than that.
Finished running in my facelift C63S Coupe this week, and can confirm a huge difference between this delivered car and the press cars I drove in June at Bilsterberg. If any of you have seen that video, you'll note the difference is pronounced, namely:
In Sport+/Race:
- Quieter sound generally
- Less bangs/pops on overruns/letting off throttle. Occurring only in a very specific rev range (4500/5000)
- Stand still revs, car stops banging after 3-4 initially revs. Needs a break before starting again.
- Worst of all: ZERO bangs/pops/emotion on down shifts
I'm making enquiries within AMG right now and will feed back to anyone who cares, my understanding is this is a software issue where the ECU has been tinkered with incorrectly. My guess would be a fix will come for this eventually, but I can only make a guess for now.
Anyone having the same problem is welcome to DM me on instagram, I'm making a list of cars with build dates and countries to help the guys address this ASAP.
p.s.
Heres the video if anyone wants to confirm: https://youtu.be/AlVHFjez1q4
That is disappointing to hear! I take delivery of mine soon after a 8 month wait, was really looking forward to those pops/burbles as in your video.
Looking forward to an update from you!
Edit** came across this video on youtube of a 2019 revving. US Spec. Seems to burble nicely? He also mentions the dealership will "retune" his car once he reaches break-in mileage, which apparently unlocks some new features? LC and maybe more pops? Revs around the 4:20 min time
Last edited by Beast; Apr 23, 2019 at 02:18 AM.
My SA (which has been very informative and helpful since I ordered the car) confirmed that if I take the car in for 1700 mile service (I have ~ 400 miles left; should take it in sometime next week), they will re-tune the car which will unlock some additional features such as Launch Control as well as better overall output. I'm not 100% sure with these info until I take the car in for the first service. I'll keep you posted once I have further info.
@b3ns.c63s.amg
The Best of Mercedes & AMG
1. Flaps are not fully opened under 4000 RPM, even in race mode, try 1-2 gear between 4-6K on and off, there should be decent pops & crackles
2. Keep pressing downshift paddle to shift down gear consecutively -> engine revving around 4-6K -> flaps fully open -> backfiring gunshots like crazy
Catless DP and Stage 2 ECU tune would make your life much easier if you want these sounds as easily and loud as possible, especially the tune takes it to the next level, catless dp wouldn't make much difference before ECU is written. But even then without mods or aftermarket cat-back, the flaps still need to reach 4K to fully open. In a nutshell, switch to race mode, put some load on the gas pedal in low gear and see how it goes
Last edited by jerrytsao; Apr 23, 2019 at 05:46 AM.
My suggestion (if it bothers you as much as it does me) ask your service department to raise query with AMG Germany as to why there's no "emotional sound on down shifting in sports+ and race" as advertised in press cars.
I'll of course let you know what I hear back, but sheer force of complaints usually gets the trick done faster. Remember, Pre-facelift was the same until the 2017 exhaust update!
My suggestion (if it bothers you as much as it does me) ask your service department to raise query with AMG Germany as to why there's no "emotional sound on down shifting in sports+ and race" as advertised in press cars.
I'll of course let you know what I hear back, but sheer force of complaints usually gets the trick done faster. Remember, Pre-facelift was the same until the 2017 exhaust update!
They must have been a bit shocked
This is a little bit of a downer as I'm slated to receive my car soon - so to hear that the exhaust isn't as advertised does put a damper on things
Hence why I'm asking directly, but it's regardless a good idea to submit a case to AMG via service asking if it's a known issue.
Hence why I'm asking directly, but it's regardless a good idea to submit a case to AMG via service asking if it's a known issue.
Hopefully with all the brand awareness and traction (heh) you've given AMG through your YouTube channel and IG, they take your comments and complaints a bit more seriously.
Wouldn't want to be the person in charge at MBUK press when your review comes out saying the press car was a lie, and the delivered product sounds nothing like the press car.
Hopefully with all the brand awareness and traction (heh) you've given AMG through your YouTube channel and IG, they take your comments and complaints a bit more seriously.
Wouldn't want to be the person in charge at MBUK press when your review comes out saying the press car was a lie, and the delivered product sounds nothing like the press car.
The poor press guys probably have no idea, my real worry is the other Motoring journos who will just assume it's meant to be this way and slate the facelift, whereas I will fire fight for the brand knowing it's a fixable error!
The video I'm doing this week is on the Origin of AMG so I'll scoot around it, but duty is also to inform the public.
The poor press guys probably have no idea, my real worry is the other Motoring journos who will just assume it's meant to be this way and slate the facelift, whereas I will fire fight for the brand knowing it's a fixable error!
The video I'm doing this week is on the Origin of AMG so I'll scoot around it, but duty is also to inform the public.

Can't fathom that causing a stir here in Singapore would do much, seeing how there are only 4 c63s (coupe and sedans) that have been ordered. A voice of 4, at that, won't be loud enough.
Not to mention we only have 1 authorised dealer here...
P.S. Good to hear from @roken on this as the man knows his stuff. I've watched pretty much every video on the Remove Before Race channel including the video posted above on the facelift (actually I watched that one more than once
)
I had the a 2017 before and have just done 300 miles so far on my 2019. Build date 22 February
First thing I noticed was the exhaust was louder in comfort than my 2017
with a few mild pops. There is also a marked difference in exhaust tone between valves closed and open in Comfort mode.
I can’t comment on sport plus yet.
Will keep you guys posted.
Last edited by Uga Uga; Apr 23, 2019 at 12:45 PM.
Finished running in my facelift C63S Coupe this week, and can confirm a huge difference between this delivered car and the press cars I drove in June at Bilsterberg. If any of you have seen that video, you'll note the difference is pronounced, namely:
In Sport+/Race:
- Quieter sound generally
- Less bangs/pops on overruns/letting off throttle. Occurring only in a very specific rev range (4500/5000)
- Stand still revs, car stops banging after 3-4 initially revs. Needs a break before starting again.
- Worst of all: ZERO bangs/pops/emotion on down shifts
I'm making enquiries within AMG right now and will feed back to anyone who cares, my understanding is this is a software issue where the ECU has been tinkered with incorrectly. My guess would be a fix will come for this eventually, but I can only make a guess for now.
Anyone having the same problem is welcome to DM me on instagram, I'm making a list of cars with build dates and countries to help the guys address this ASAP.
p.s.
Heres the video if anyone wants to confirm: https://youtu.be/AlVHFjez1q4
My suggestion (if it bothers you as much as it does me) ask your service department to raise query with AMG Germany as to why there's no "emotional sound on down shifting in sports+ and race" as advertised in press cars.
I'll of course let you know what I hear back, but sheer force of complaints usually gets the trick done faster. Remember, Pre-facelift was the same until the 2017 exhaust update!
Finished running in my facelift C63S Coupe this week, and can confirm a huge difference between this delivered car and the press cars I drove in June at Bilsterberg. If any of you have seen that video, you'll note the difference is pronounced, namely:
In Sport+/Race:
- Quieter sound generally
- Less bangs/pops on overruns/letting off throttle. Occurring only in a very specific rev range (4500/5000)
- Stand still revs, car stops banging after 3-4 initially revs. Needs a break before starting again.
- Worst of all: ZERO bangs/pops/emotion on down shifts
I'm making enquiries within AMG right now and will feed back to anyone who cares, my understanding is this is a software issue where the ECU has been tinkered with incorrectly. My guess would be a fix will come for this eventually, but I can only make a guess for now.
Anyone having the same problem is welcome to DM me on instagram, I'm making a list of cars with build dates and countries to help the guys address this ASAP.
p.s.
Heres the video if anyone wants to confirm:
Details of my build:
2019 C63s Coupe
Delivered January 2019
NYC
https://www.youtube.com/watch?v=SeaOhG3QlE8
Last edited by seek3n; Apr 25, 2019 at 01:15 AM.
For me, is sad, being 3/4 weeks from delivery and knowing this. Hope they solve this soon.
I have a BMW 340i with M Performance exhaust, and it pops and crackles so easy, when ever you want. Just put it in S or S+.
Last edited by fjp63amg; Apr 25, 2019 at 05:27 AM.








