My exhaust isn't as loud as before
Super Member
Joined: Oct 2015
Posts: 975
Likes: 98
From: Abu Dhabi, United Arab Emirates
C63S 2016
Member
Joined: Aug 2011
Posts: 220
Likes: 17
C63 amg esate
My car gradually got it's voice back after a couple of months and after another visit to the dealer to sort out the eco stop start I was told that Mercedes were aware of the issue after a number of owners had complained and have produced a 'patch' for the latest software to get the noise back.
Super Member
Joined: Oct 2015
Posts: 975
Likes: 98
From: Abu Dhabi, United Arab Emirates
C63S 2016
My car gradually got it's voice back after a couple of months and after another visit to the dealer to sort out the eco stop start I was told that Mercedes were aware of the issue after a number of owners had complained and have produced a 'patch' for the latest software to get the noise back.
I don't want her to lose her note 
Member
Joined: Jul 2015
Posts: 201
Likes: 18
From: Los Angeles
2016 C63s
Has it been really hot where you are lately? I live in Los Angeles in the San Fernando valley and I've noticed when it really hot during the summer that lift off pop is not as loud as it is in the cold mornings. I don't know why that would be but that's what I've noticed on my car. Even with the AWE-Track exhaust I installed I notice a difference. Maybe something to look into.
Junior Member
Joined: Sep 2014
Posts: 15
Likes: 0
c63
Had the same issue after a service at 13000km, where the latest software updates were applied. After that noticed intermittent power loss, and the car was performing best in comfort mode - worst in race mode.... Thought it was a fuel factor, so I tried 2 back to back bottles of octane booster... Guess what - it was even slower with the booster in!!
Finally read everything online and determined it was the vacuum line to the wastegate actuator that was kinked / worn. My dealer replaced this and everything is back to normal... performance is better than ever, sound is much better too
Suggest that those suffering from similar symptoms check their vacuum line
Finally read everything online and determined it was the vacuum line to the wastegate actuator that was kinked / worn. My dealer replaced this and everything is back to normal... performance is better than ever, sound is much better too
Suggest that those suffering from similar symptoms check their vacuum line
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Joined: Jan 2014
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2013 C250 Sport
