Originally Posted by zibby43

I had an '18 sedan before switching to a '20 (both with the PE). In my case, there is definitely still a difference in sound (and volume) between PE on/off, but I have noticed a few changes:

1) The '20 is louder on cold starts (irrespective of whether the PE is on or off when starting), especially from inside the cabin. The Emotion Start (which is available on the '20) is great.

2) The pops and crackles when braking/decelerating are mostly the same in the '20.

3) The '20 is a bit quieter when cruising around in C or S (haven't utilized S+ yet - only 200 miles). This car has the pano roof, unlike my last one. I don't know whether it's better sound insulation or the introduction of the particulate filter, but there is a subtle difference.

4) There is noticeably less drone at cruising speeds in C (PE on) with the '20.

Really prefer the quad oval tips on the '20, too.

Originally Posted by 1Gunner

Agree on all points.
Curious why you wouldn't use S+ yet?
Our 2020 has the same mileage, not a lot of essential places to drive to I guess, but have definitely been playing with all drive modes with light throttle.

Originally Posted by RJ M

Just picked up my new 2020 C43 a couple of weeks ago, so I can actually participate here instead of just reading posts about the C43

Mine has the Performance Exhaust included in the build.

Liking the car a lot so far but noticed some oddity to the way the exhaust behaves. It's always been loud on start up (fine with me), but driving around in comfort, I noticed at light part-throttle the growl is unusually... "noticeable", a bit in your face, louder than any music playing. Keep in mind, I also have my "sports" cars on the side... this is my DD sedan. I've had 3 generations of Cayman S with various aftermarket exhausts, had a Lotus Evora S w/ aftermarket exhaust, a BMW M235 with performance exhaust, and now a '19 Corvette with... you guessed it, performance exhaust. So, you get the picture... I'm not a stranger to loud exhausts, but this behavior seemed unusual.

So, anyway... the other night, it had been a really, really long and stressful day at work, really tired, burnt, foul mood, got in the car and started driving in traffic and, I have to admit, at one point I was just like "man, I wish this thing would just SHUT UP."

I was in Comfort, the light on the exhaust button was off, and just completely randomly, I just decided to hit the Exhaust button anyway to see how much louder it would actually go.

I was at idle when I did this and, to my surprise, it momentarily got QUIETER when the light came ON. I applied light throttle, and with the light still on, it was not *quite* as loud as before. When I really got on the throttle, it was definitely fully awake and popping. So I clicked the button OFF, and suddenly, things got *significantly* quieter than before, and stayed that way, at all revs and throttle inputs. When I switched back ON, was definitely louder, but never as loud at part-throttle as it was initially.

I turned car off when I reached grocery store... turned back on, same exact scenario. It's like it's at it's absolute loudest on startup, and any adjustment to the switch changes it henceforth, and it's still quieter in EITHER mode at light part-throttle than after startup.

That said... car only has 150 miles on it. Maybe it's still adjusting and learning something.

Anyone experience this ever?

Originally Posted by AnkleDoc

Thanks for the comment. I just got a 2020 C43 and having the same issue with the exhaust. Its annoying that I have to play with the buttons every time to reset this issue which I assume is software related. Anyone know if this has been addressed?

Originally Posted by zibby43

I always hit the PE button right after I start the car. Has nice burbles, crackles, and pops, even in C. After running an errand today, I forgot to turn it on, and noticed that the volume of the exhaust was actually louder than with the PE on. However, there were no crackles and pops.

After turning the PE on, and then back off, “normal” C mode was quieter.

Just thought it was interesting more than anything.

Originally Posted by Ramsino

I notice this inconsistency from time to time as well in my 2020 C43. Not sure if this is something that they will iron out with a software update; it should be possible though.

Originally Posted by zibby43

Thanks for taking the time to share. Glad to know my mind wasn’t playing tricks on me.

I also view it as a software issue of some kind. The PE being on definitely guarantees the extra drama of the pops and crackles, but it was the louder overall pure volume when accelerating gently in C, with the PE off, that caught my attention.

I love the sound, either way, so I’m more curious than anything at this point. There was a much sharper distinction between the “volume” of PE on/off in my ‘18.

Originally Posted by zibby43

Thanks for taking the time to share. Glad to know my mind wasn’t playing tricks on me.

I also view it as a software issue of some kind. The PE being on definitely guarantees the extra drama of the pops and crackles, but it was the louder overall pure volume when accelerating gently in C, with the PE off, that caught my attention.

I love the sound, either way, so I’m more curious than anything at this point. There was a much sharper distinction between the “volume” of PE on/off in my ‘18.

Originally Posted by Ramsino

Yes, I love the sound too! However, I do prefer as quiet as possible when in Comfort mode. It doesn't make sense to have different modes if the modes themselves are not as distinctive as can be among one another.

I thought the 2020 AMG C43 Sedan does not have piped in sound or artificial sound generator coming from the speakers. I recall there being a large thread on that discussion somewhere on this forum.