C450/C43 AMG
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P/E becoming quite after slow driving

Old Jul 4, 2019 | 02:09 PM
  #1  
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2018 C43 AMG Coupe
P/E becoming quite after slow driving

Edit: P/E becoming quiet after slow driving.

I mostly drive my car in Sport+ mode and I never knew that the car is actually smart and will pick up on your driving habits. What I mean by that is, when you are driving in Sport+ mode w/ P/E and ripping the streets, the car is loud and pops are amazing ... if you are in Sport+ mode and keep driving slowly in city traffic then the car is no longer as loud and will start to drive like in Comfort mode.

So my question is ... how do I get the car to "default" Sport+ characteristics? I feel like in the past 3-4 days (the weathers been the same all month) my P/E is much quieter.
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Old Jul 4, 2019 | 04:13 PM
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Read this thread:

https://mbworld.org/forums/c450-c43-...my-head-2.html
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Old Jul 4, 2019 | 04:41 PM
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I read both posts (the one also linked within the one you sent) but honestly didn't come across a "real" answer.

From your experience, it has to do with temp right ? But I swear to god, one day it is quiet one day it is loud then back to quiet ... I really don't get this car lol.

One day in sport+ it will shift like comfort mode at like 2k rmp and another day it will try to red line each shift.

I am confused lol.
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Old Jul 4, 2019 | 05:12 PM
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Originally Posted by Seqqsy
I read both posts (the one also linked within the one you sent) but honestly didn't come across a "real" answer.

From your experience, it has to do with temp right ? But I swear to god, one day it is quiet one day it is loud then back to quiet ... I really don't get this car lol.

One day in sport+ it will shift like comfort mode at like 2k rmp and another day it will try to red line each shift.

I am confused lol.
It does not only have to do with temperature, it has a lot to do with humidity as well. On humid days that car will feel significantly quiet.
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Old Jul 4, 2019 | 06:17 PM
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Can confirm it is the temperature.

source: ear dyno
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Old Jul 4, 2019 | 06:23 PM
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Try resetting the transmission and stay only in S+ for few days. Don't forget to drive like you stole it for few hours.
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Old Jul 5, 2019 | 01:29 PM
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Originally Posted by stockbmw
Try resetting the transmission and stay only in S+ for few days. Don't forget to drive like you stole it for few hours.
How do you reset the transmission?
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Old Jul 5, 2019 | 02:17 PM
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Originally Posted by Jurena
How do you reset the transmission?
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Old Jul 5, 2019 | 07:44 PM
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Originally Posted by stockbmw
Thank you
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