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backfiring with exhausts in c300

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Old Oct 19, 2018 | 03:45 AM
  #1  
saam_99's Avatar
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C300 coupe AMG 9G-tronic
backfiring with exhausts in c300

Does anyone know how to make the sound of the exhausts backfiring? I mean, when you listen a c63, you can listen typical exhaust sound (bakfire), so I would like to do it in my c 300 with sport exhaust system (I know that will be not the similar sound, but i want to know how backfiring with exhausts).
I do not know if it can be done in a Mercedes C 300 with sports exhaust system. Should we stop accelerating? ....
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Old Oct 19, 2018 | 09:42 AM
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2018 E43 AMG
The exhaust crackle/pop was only made available in Sport+ mode on 2015 C300s. It was discontinued for the C300s and only available on the C400, C450 and C43 models.
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Old Oct 19, 2018 | 12:11 PM
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2015 c300 4matic with sports package
ah that's good to know. I will try it! I usually just leave the car in Confort mode.
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Old Oct 19, 2018 | 12:29 PM
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2015 c300 4matic with sports package
is there actually a flap in the exhaust ? Or they just inject a bit of fuel?

I see that on the C63, there is an actual muffler actuator part from the parts list. Nothing like that for the C300.

Last edited by Simon Guertin; Oct 19, 2018 at 12:33 PM.
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Old Oct 19, 2018 | 06:58 PM
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2018 E43 AMG
Originally Posted by Simon Guertin
is there actually a flap in the exhaust ? Or they just inject a bit of fuel?

I see that on the C63, there is an actual muffler actuator part from the parts list. Nothing like that for the C300.
On the C300s it's via injecting fuel. The C63/43 has the Performance Exhaust as an equipment option which uses the actuator as you posted.
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Old Oct 19, 2018 | 07:42 PM
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From: Westchester County, NY
‘15 C300 4M Sport, ‘20 GLC300
My 15 does this but it’s more like a burble than a crackle/pop. I hear it a lot less since I installed Dinan piggyback 🤔.
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Old Oct 22, 2018 | 10:07 PM
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C200 4matic
yesterday I was told that this crackle can be programmed opening the ECU. Mine is already flashed but will probably go to my shop and test it.. Programmer told me it has something to do with turbo anti-lag
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Old Oct 22, 2018 | 11:34 PM
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2015 c300 4matic with sports package
Testing

Originally Posted by janusgrimnitz
yesterday I was told that this crackle can be programmed opening the ECU. Mine is already flashed but will probably go to my shop and test it.. Programmer told me it has something to do with turbo anti-lag
i experimented a bit and it really happens only in sports plus, not in confort mode. Also, you need to be flooring it or almost wide open throttle. Manual shifts make it happen to, no need to go to red line.
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