I just got my car (C63s Coupe) back from the dealer after requesting to upgrade engine, tranny, and map softwares.
Honestly, I do not think the exhaust got any louder and the pops/crackles are the same.
How frequent do you guys hear the pops and crackles?
For me, if I put the dynamic select to sport +, it pops and crackles ONLY when I manually downshift or crank up the RPM to 5-6k and let the throttle go.
Honestly, I do not think the exhaust got any louder and the pops/crackles are the same.
How frequent do you guys hear the pops and crackles?
For me, if I put the dynamic select to sport +, it pops and crackles ONLY when I manually downshift or crank up the RPM to 5-6k and let the throttle go.
Popular Reply
roken Apr 22, 2019 08:20 PM
Junior Member
Hey guys! I'm @rokenr from instagram (remove before race channel on YouTube).
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:
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:
Member
That seems not enough. I hear it very slightly in Sport and pretty loudly in S+ and Race when auto downshifting.
Senior Member
Quote:
Only in S+ and past 4K RPMs on overrun for me. Maybe 3 crackles. Maybe.Originally Posted by Mikey_boy
That seems not enough. I hear it very slightly in Sport and pretty loudly in S+ and Race when auto downshifting.
Drove a base 911 Targa 4 with sports exhaust, and that mother f^{*]! was popping all. over. the. place. Put my car to shame. I dropped it at the dealer for another issue and asked if they would check if the updates have been applied.
Sanch
MBWorld Fanatic!
close
Jan 12, 2026
- Join DateSep 2015
- LocationSydney
- Posts:2,137
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveAMG GLC63 E-Performance Edition 1
-
Likes:208
-
Liked:263 Times in 228 Posts
Quote:
Honestly, I do not think the exhaust got any louder and the pops/crackles are the same.
How frequent do you guys hear the pops and crackles?
For me, if I put the dynamic select to sport +, it pops and crackles ONLY when I manually downshift or crank up the RPM to 5-6k and let the throttle go.
This is how it should sound in Sports + & Race. Originally Posted by lyjw88
I just got my car (C63s Coupe) back from the dealer after requesting to upgrade engine, tranny, and map softwares.Honestly, I do not think the exhaust got any louder and the pops/crackles are the same.
How frequent do you guys hear the pops and crackles?
For me, if I put the dynamic select to sport +, it pops and crackles ONLY when I manually downshift or crank up the RPM to 5-6k and let the throttle go.
Comfort has no pops or cracks.
Sanch
MBWorld Fanatic!
close
Jan 12, 2026
- Join DateSep 2015
- LocationSydney
- Posts:2,137
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveAMG GLC63 E-Performance Edition 1
-
Likes:208
-
Liked:263 Times in 228 Posts
Quote:
Only in S+ and past 4K RPMs on overrun for me. Maybe 3 crackles. Maybe.
Deove a base 911 Targa 4 with sports exhaust, and that mother f^{*]! was popping all. over. the. place. Put my car to shame. I dropped it at the dealer for another issue and asked if they would check if the updates have been applied.
I've driven past a few 911 now and they've all snapped their necks.... unless it's the high revving GT3 or RS.Originally Posted by JWreck
Only in S+ and past 4K RPMs on overrun for me. Maybe 3 crackles. Maybe.
Deove a base 911 Targa 4 with sports exhaust, and that mother f^{*]! was popping all. over. the. place. Put my car to shame. I dropped it at the dealer for another issue and asked if they would check if the updates have been applied.
The other 911 are no match in sound... the Golf R pops for days too
Senior Member
Quote:
Comfort has no pops or cracks.
https://www.youtube.com/watch?v=SeaOhG3QlE8
What RPMs are you hitting thereOriginally Posted by Sanch
This is how it should sound in Sports + & Race.Comfort has no pops or cracks.
https://www.youtube.com/watch?v=SeaOhG3QlE8
Sanch
MBWorld Fanatic!
close
Jan 12, 2026
- Join DateSep 2015
- LocationSydney
- Posts:2,137
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveAMG GLC63 E-Performance Edition 1
-
Likes:208
-
Liked:263 Times in 228 Posts
Quote:
What RPMs are you hitting there
Between 2 - 5Originally Posted by JWreck
What RPMs are you hitting there
Quote:
Comfort has no pops or cracks.
https://www.youtube.com/watch?v=SeaOhG3QlE8
Mine does pretty the same thing when revving like your video. What about driving in the city or on back roads?Originally Posted by Sanch
This is how it should sound in Sports + & Race.Comfort has no pops or cracks.
https://www.youtube.com/watch?v=SeaOhG3QlE8
Member
this is mine
Sanch
MBWorld Fanatic!
close
Jan 12, 2026
- Join DateSep 2015
- LocationSydney
- Posts:2,137
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveAMG GLC63 E-Performance Edition 1
-
Likes:208
-
Liked:263 Times in 228 Posts
Quote:
It sounds much louder under load... esp when downshifting/ changing gears - you would have the same?Originally Posted by lyjw88
Mine does pretty the same thing when revving like your video. What about driving in the city or on back roads?
Sanch
MBWorld Fanatic!
close
Jan 12, 2026
- Join DateSep 2015
- LocationSydney
- Posts:2,137
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveAMG GLC63 E-Performance Edition 1
-
Likes:208
-
Liked:263 Times in 228 Posts
Quote:
this is mine
I'm waiting to hear Alex 2.0 Originally Posted by Alex98
https://www.instagram.com/p/Bc-5SJZl...en-by=1slowc63this is mine
Member
Quote:
Friday 2.0 will be outOriginally Posted by Sanch
I'm waiting to hear Alex 2.0
Sanch
MBWorld Fanatic!
close
Jan 12, 2026
- Join DateSep 2015
- LocationSydney
- Posts:2,137
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I driveAMG GLC63 E-Performance Edition 1
-
Likes:208
-
Liked:263 Times in 228 Posts
Quote:
Yeahhhh boy!Originally Posted by Alex98
Friday 2.0 will be out
Quote:
In race mode, yes mine does it too. So I guess my car is pretty close to everyone else. I will need to go catless to bring the pops and crackles to next level lolOriginally Posted by Chigs
In race mode, even if you roll on and off the throttle, it pops and crackles.
So you guys are testing for the correct tune based on revving it in park? Cuz I tested it while in motion, would drop gears, get on the gas (in Sport+) up to 4K, then let off, and I'd get 1-2 backfires TOPS. I'd get about 4 backfires pretty regularly if I let off at 4500 though... Now I'm gonna try this today while stationary...
raudiace4
MBWorld Fanatic!
close
Mar 25, 2026
- Join DateJun 2014
- LocationIL
- Posts:1,580
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I drive19 E63s, 23 M3 compX, B9 SQ5
-
Likes:395
-
Liked:678 Times in 375 Posts
I recently had my software updated and the pops are definitely louder. It pops really loud on downshifts in S+ and Race. All other modes it sounds same as before. I don't have the Perf exhaust btw. 100% stock.
Member
Quote:
The other 911 are no match in sound... the Golf R pops for days too
completely agree.....previous owner of 991.1 S and 991.1 base.....both with the Porsche sports exhaust. louder than Porsche stock exhaust yes, lower tone as well.......lots of crackles and pops? maybe some higher pitched ones but nothing that comes close to the c63s.Originally Posted by Sanch
I've driven past a few 911 now and they've all snapped their necks.... unless it's the high revving GT3 or RS.The other 911 are no match in sound... the Golf R pops for days too
Newbie
I brought my 2016 car in a few weeks ago and showed them the Xentry bulletin and all that...and the dealership said they did the update. After I picked the car up, it sounded like it was done. But more recently, I don't get the same number of pop/crackles as some of y'all.
Since picking up, I did have an independent shop check/clear all codes to try to eliminate that low voltage issue some users have noted.
Anyone else had this? Thinking of taking back for another separate issue and having them double check that the update was done.
Does anyone know what software version to check for in Xentry?
Thanks!
Since picking up, I did have an independent shop check/clear all codes to try to eliminate that low voltage issue some users have noted.
Anyone else had this? Thinking of taking back for another separate issue and having them double check that the update was done.
Does anyone know what software version to check for in Xentry?
Thanks!
Dob, here ya go: https://mbworld.org/forums/showpost.php?p=7432345&postcount=118 
Newbie
Quote:
Thank you! You know I read that entire thread awhile back and must have missed that. Originally Posted by FDNewbie
Dob, here ya go: https://mbworld.org/forums/showpost....&postcount=118
So I guess all of our engine software & gearbox software versions (for the US) should match?? My versions are NOT the same as yours according to the Xentry my independent shop pulled.
Hmmmm.... thoughts?
Will take your versions to the dealership next time as well when I ask them to double check it.
(In that thread as well) there's an early version/initial release. The one I linked you to is the final version (hence why it says Version 2, and under "Reason for Change" it says "Cleanpoint entered").
Super Member
KJ
Super Member
close
Sep 19, 2022
- Join DateNov 2009
- Posts:601
-
iTrader Positive Feedback0
-
iTrader Feedback Score(0)
- Vehicle(s) I drive2020 GLE 53 AMG
-
Likes:129
-
Liked:113 Times in 74 Posts
Quote:
I looked at the previous one as well, but everything was the same (including which DVD version to use and the "Topic Number" etc.)Originally Posted by FDNewbie
(In that thread as well) there's an early version/initial release. The one I linked you to is the final version (hence why it says Version 2, and under "Reason for Change" it says "Cleanpoint entered").
What does "Cleanpoint Entered" mean?
