I did a forum search and there is not much information out there on this topic.
I took delivery last night of my 2017 C43 AMG. On my build sheet it states U21 Performance Exhaust however I do not see a button on my dash like I have seen in vehicle reviews. From what I have read U21 comes with flaps that allow you to control the exhaust note from inside the cabin. I cannot find a button.
Anyone know more about this than me?
Thanks!
I took delivery last night of my 2017 C43 AMG. On my build sheet it states U21 Performance Exhaust however I do not see a button on my dash like I have seen in vehicle reviews. From what I have read U21 comes with flaps that allow you to control the exhaust note from inside the cabin. I cannot find a button.
Anyone know more about this than me?
Thanks!
Nevermind I figured it out. Mercedes changed their exhaust system code.
U21 - is just sport exhaust
U78 - is now AMG Performance Exhaust
U21 - is just sport exhaust
U78 - is now AMG Performance Exhaust
DRBC43AMG
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Wrong forum page buddy. This is the original C43 (w202) from the late 90's
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It has begun...
this forum will never be the same. been nice knowing you guys
this forum will never be the same. been nice knowing you guys
nkctb7
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Apr 6, 2026
Quote:
this forum will never be the same. been nice knowing you guys
Way to go Mercedes! A completely different beast that boasts a twin turbo V6 and you had to steal the name from the very first C Class that boasted a naturally aspirated V8. Originally Posted by Sulaco
It has begun...this forum will never be the same. been nice knowing you guys
Walking into a dealer to order parts for a C43 will never be the same! The kid behind the counter will repeat.... a 199? what???
DRBC43AMG
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Quote:
Walking into a dealer to order parts for a C43 will never be the same! The kid behind the counter will repeat.... a 199? what???
+1 Originally Posted by nkctb7
Way to go Mercedes! A completely different beast that boasts a twin turbo V6 and you had to steal the name from the very first C Class that boasted a naturally aspirated V8. Walking into a dealer to order parts for a C43 will never be the same! The kid behind the counter will repeat.... a 199? what???
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