C63 AMG (W204) 2008 - 2015

Semi-stupid Q re exhaust sound

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Old 04-27-2018, 06:36 PM
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C63 AMG P30 *EuroCharged*| Porsche Cayenne | Buell XB9SX
Semi-stupid Q re exhaust sound

Hi, guys.

I had my car fully serviced at my indy shop (motor oil and filter, trans, coolant, brake fluid, steering fluid, etc), and I swear that my exhaust sound (while driving only, start up bark is normal) is not as loud ever since. I even uninstalled/reinstalled V5 to make sure, but still same quieter exhaust. Does this make sense to anyone, or am I experiencing early onset of dimentia? Can anyone suggest any reasons as to why this could have happened, besides that maybe I am going deaf?
Old 04-27-2018, 08:44 PM
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2010 C63 AMG
Maybe you had a vibration that disappeared after they rooting around under there?
Old 04-28-2018, 05:50 AM
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Check oil level. If it’s overfilled it can make the car sound extra muffled.
Old 04-28-2018, 07:14 AM
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Do the ECU/TCU adaptation thing where you hold down the pedal and turn the key. I had a similar experience with my last service. The reason was that my battery was probably disconnected for a while when they took my dash apart and were trying to fix the rattles. When I got the car back it sounded quiet and wasn't anywhere near as aggressive as it was before. I even asked if they did some software updates what might have erased my tune. After the adaptation reset and driving it for a while really hard the car was back to normal for me.
Old 04-30-2018, 01:59 PM
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Thanks, guys. My oil was a little overfilled. I removed some and now the car sounds better.

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