Pops and crackles
At least for the US c63s AMG is aware of the sound complaints and is working on a software update according to a member who talked to the same rep(Isaiah) at mbusa I did to file the complaint. I do not know if this is going to happen with the eu cars as they have stricter sound regulations now. As noted before Audi gave the new r8 EU spec a bump in horsepower by 10 hp and the US got a louder exhaust because we could handle the increase in noise and the EU spec couldn't due to updated EU regulations on noise.
https://youtu.be/MfZQ70PtirI
Last edited by Radon; Jun 1, 2019 at 07:36 PM.




Here is what I got from Mercedes Benz Customer Service Canada:
In regards to other AMG models (AMG GT, AMG GT4 door, E53, and even S63 and G63) there are numersous factors the exhaust system would be different, such as, the size of the exhaust system including the tail pipes & mufflers and the vehicle being tuned differently for each model. While we are not in the position to comment on any forums based on each individual customer complaints, our focus is directed towards the concern you have addressed with Mercedes-Benz Canada. We have confirmed with Daimler that the Model Year (MY) 2019 C63S received the particle filter, named OPF (OTTO particle filter) and definition of this is that the Gasoline particulate filters (GPF) are an emission aftertreatment technology based on diesel particulate filters (DPF), developed to control particulate emissions from gasoline direct injection (GDI) engines. The technology is also referred to as petrol particulate filter (PPF) and, in some German literature, as Otto particle filter (Ottopartikelfilter in German), abbreviated OPF. As such the reason for the difference in sound.
Since your concern has been addressed within the MB dealer network and deemed to have no faults and is operating as design, we must advise again, that we will not perform any adjustments or modifications beyond the vehicle specifications.
If the sound perfomance of the exhaust system for this vehicle was a major factor prior to completing the agreement to purchase the vehicle, this should have been discussed directly with your sales consultant or a test drive be performed to insure specific requirements were met.
The Best of Mercedes & AMG
Here is what I got from Mercedes Benz Customer Service Canada:
In regards to other AMG models (AMG GT, AMG GT4 door, E53, and even S63 and G63) there are numersous factors the exhaust system would be different, such as, the size of the exhaust system including the tail pipes & mufflers and the vehicle being tuned differently for each model. While we are not in the position to comment on any forums based on each individual customer complaints, our focus is directed towards the concern you have addressed with Mercedes-Benz Canada. We have confirmed with Daimler that the Model Year (MY) 2019 C63S received the particle filter, named OPF (OTTO particle filter) and definition of this is that the Gasoline particulate filters (GPF) are an emission aftertreatment technology based on diesel particulate filters (DPF), developed to control particulate emissions from gasoline direct injection (GDI) engines. The technology is also referred to as petrol particulate filter (PPF) and, in some German literature, as Otto particle filter (Ottopartikelfilter in German), abbreviated OPF. As such the reason for the difference in sound.
Since your concern has been addressed within the MB dealer network and deemed to have no faults and is operating as design, we must advise again, that we will not perform any adjustments or modifications beyond the vehicle specifications.
If the sound perfomance of the exhaust system for this vehicle was a major factor prior to completing the agreement to purchase the vehicle, this should have been discussed directly with your sales consultant or a test drive be performed to insure specific requirements were met.




I have for the first time mentioned our problem with the C63 exhaust at length in this video (it’s near the tail end) so you can cite my comments if you run into issues with your dealers etc.
I’ve not heard back yet, but I’m pushing now as it’s becoming untenable for me. Link below (enjoy it too, mega car)
I have for the first time mentioned our problem with the C63 exhaust at length in this video (it’s near the tail end) so you can cite my comments if you run into issues with your dealers etc.
I’ve not heard back yet, but I’m pushing now as it’s becoming untenable for me. Link below (enjoy it too, mega car)
https://youtu.be/O03ZJHEq2Ck
https://youtu.be/hE-1VhYqx1s?t=3m
https://youtu.be/hE-1VhYqx1s?t=3m








