Exhaust / Cold Start
Thread Starter
Junior Member
Joined: Oct 2019
Posts: 24
Likes: 20
2016 E400 Sport
Exhaust / Cold Start
Vehicle: 2016 E400
I'm looking to modify the exhaust, purely for aesthetic reasons, but I don't want an annoyingly loud or intrusive sound. I absolutely love the sound of the E400's cold start tone and rumble, but once it's warmed up, its damn near silent. What would need to be done to keep that same rumble 24/7, but obviously make the cold start a tad bit louder as a result? Are there factory resonators that can be removed without affecting the emissions output?
I'm looking to modify the exhaust, purely for aesthetic reasons, but I don't want an annoyingly loud or intrusive sound. I absolutely love the sound of the E400's cold start tone and rumble, but once it's warmed up, its damn near silent. What would need to be done to keep that same rumble 24/7, but obviously make the cold start a tad bit louder as a result? Are there factory resonators that can be removed without affecting the emissions output?
Member
Joined: Oct 2019
Posts: 87
Likes: 19
From: Essex Fells, NJ
2016 E400 Sedan, 2018 E400 Cabriolet
My Sadie is a 2016 E400 Sport and I have not noticed that the exhaust note changes when the engine, and exhaust system, varies from cold to hot. It always has that pleasant little burble. Unless I ask a little more from her when she rumbles a little louder. It's not obtrusive, but she is louder and more noticeable in note than the luxury E350s friends drive. Those cars are very quiet.
I was on a conference call a few weeks ago while driving Sadie. While merging onto a fast moving highway on an uphill grade, she really started singing. The guys on the phone, most of whom are in Europe, asked, "Who is on a racetrack?" Pretty funny!
I was on a conference call a few weeks ago while driving Sadie. While merging onto a fast moving highway on an uphill grade, she really started singing. The guys on the phone, most of whom are in Europe, asked, "Who is on a racetrack?" Pretty funny!
Last edited by fc3; Dec 5, 2019 at 08:44 PM.
Thread Starter
Junior Member
Joined: Oct 2019
Posts: 24
Likes: 20
2016 E400 Sport
I’ll see if I can get a video once it cools off. Mine is noticeably louder and almost sounds like it’s cammed. But once it warms up, it’s dead silent
My Sadie is a 2016 E400 Sport and I have not noticed that the exhaust note changes when the engine, and exhaust system, varies from cold to hot. It always has that pleasant little burble. Unless I ask a little more from her when she rumbles a little louder. It's not obtrusive, but she is louder and more noticeable in note than the luxury E350s friends drive. Those cars are very quiet.
I was on a conference call a few weeks ago while driving Sadie. While merging onto a fast moving highway on an uphill grade, she really started singing. The guys on the phone, most of whom are in Europe, asked, "Who is on a racetrack?" Pretty funny!
I was on a conference call a few weeks ago while driving Sadie. While merging onto a fast moving highway on an uphill grade, she really started singing. The guys on the phone, most of whom are in Europe, asked, "Who is on a racetrack?" Pretty funny!
Thread Starter
Junior Member
Joined: Oct 2019
Posts: 24
Likes: 20
2016 E400 Sport
cold start
My Sadie is a 2016 E400 Sport and I have not noticed that the exhaust note changes when the engine, and exhaust system, varies from cold to hot. It always has that pleasant little burble. Unless I ask a little more from her when she rumbles a little louder. It's not obtrusive, but she is louder and more noticeable in note than the luxury E350s friends drive. Those cars are very quiet.
I was on a conference call a few weeks ago while driving Sadie. While merging onto a fast moving highway on an uphill grade, she really started singing. The guys on the phone, most of whom are in Europe, asked, "Who is on a racetrack?" Pretty funny!
I was on a conference call a few weeks ago while driving Sadie. While merging onto a fast moving highway on an uphill grade, she really started singing. The guys on the phone, most of whom are in Europe, asked, "Who is on a racetrack?" Pretty funny!
Newbie
Joined: Mar 2011
Posts: 12
Likes: 3
2001 E320 4Matic (SOLD), 2009 E350 4Matic (SOLD), 2016 E400 4Matic
Vehicle: 2016 E400
I'm looking to modify the exhaust, purely for aesthetic reasons, but I don't want an annoyingly loud or intrusive sound. I absolutely love the sound of the E400's cold start tone and rumble, but once it's warmed up, its damn near silent. What would need to be done to keep that same rumble 24/7, but obviously make the cold start a tad bit louder as a result? Are there factory resonators that can be removed without affecting the emissions output?
I'm looking to modify the exhaust, purely for aesthetic reasons, but I don't want an annoyingly loud or intrusive sound. I absolutely love the sound of the E400's cold start tone and rumble, but once it's warmed up, its damn near silent. What would need to be done to keep that same rumble 24/7, but obviously make the cold start a tad bit louder as a result? Are there factory resonators that can be removed without affecting the emissions output?
Member
Joined: Jan 2019
Posts: 133
Likes: 16
From: New York
E400 GLE350 C63
Same 2016 e400 with the loud rumble on cold starts and sadly dims down as it warms up. Either way I am getting downpipes and a tune soon so should be much louder. I would probably just get a resonator delete/ x pipe for a louder sound.
Super Member
Joined: Oct 2013
Posts: 584
Likes: 147
From: Bay Area, CA
2010 E550
Any mods you do after the cats will not effect emissions. The resonator on my car (2010 E550) is past my cats and I replaced it with an x-pipe, I've passed the California Smog test, which is notoriously strict, just fine.
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Junior Member
Joined: Aug 2011
Posts: 36
Likes: 11
From: Toronto, Canada
2000 CLK320 (SOLD); 2016 E400 4MATIC
Vehicle: 2016 E400
I'm looking to modify the exhaust, purely for aesthetic reasons, but I don't want an annoyingly loud or intrusive sound. I absolutely love the sound of the E400's cold start tone and rumble, but once it's warmed up, its damn near silent. What would need to be done to keep that same rumble 24/7, but obviously make the cold start a tad bit louder as a result? Are there factory resonators that can be removed without affecting the emissions output?
I'm looking to modify the exhaust, purely for aesthetic reasons, but I don't want an annoyingly loud or intrusive sound. I absolutely love the sound of the E400's cold start tone and rumble, but once it's warmed up, its damn near silent. What would need to be done to keep that same rumble 24/7, but obviously make the cold start a tad bit louder as a result? Are there factory resonators that can be removed without affecting the emissions output?
https://mbworld.org/forums/e-class-w...e-startup.html
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Member
Joined: Oct 2019
Posts: 87
Likes: 19
From: Essex Fells, NJ
2016 E400 Sedan, 2018 E400 Cabriolet
Just out of curiosity, did you allow for the higher idle RPM at cold start? Cold engine RPM is around 900 while warm engine is about 500. Have someone hold the RPM at 800-900 on your car once warmed to see if the note changes.
