C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

ECU tuning for C300 W 204, any suggestions?

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Old Jun 15, 2020 | 02:11 PM
  #1  
Marshall Craggy's Avatar
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C 300 Luxury
ECU tuning for C300 W 204, any suggestions?

Good morning all,

I want to tune my 2014 C 300 Luxury 3.5 Litre V6; I don't want to get smoked on the road by a 4 cylinder Ford Focus (any more) I guess I didn't buy the best brand of luxury car in the world to have diminished performance (I also guess I didn't buy an AMG, but it seems like most of the V6 cars out there have much more impressive numbers)
I searched online & sent some emails & came up with this list: ** if anyone has experience with these companies & can offer any guidance, I'd be terribly appreciative! **

https://www.vrtuned.com/tuned-ecu-tu...152690987.html - plug & play $700
https://www.vrtuned.com/tuned-ecu-flash-tune-mercedes-c300-30l-cdi-blue-w204-1114-p-150775599.html This one you have to send it in for a bench tune $800
(VR tuned says these are both for the C300 V6)
https://shop.amrperformance.com/prod...e-ship-in-ecu/ - You have to send this one in $600
https://www.eurocharged.com/ecutunin...-software-2012 This LOOKS great, but at $1000, the other one is $1200
https://www.eurocharged.com/ecutunin...-software-2012

So if anyone has experience with these companies or tunes PLEASE let me know, all input will be valued!
Is it a nightmare to remove the ECU? Nobody has their engine blow up with a bad tune?

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Old Jul 27, 2021 | 03:43 AM
  #2  
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C300 2010 4matic
No answer?

I'm wondering the same I'm curious why there is no answers at all ???
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Old Jul 27, 2021 | 03:52 AM
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From: Quebec Canada
C300 2010 4matic
No answer?

I'm wondering the same I'm curious why there is no answers at all ???
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Old Jul 29, 2021 | 03:09 PM
  #4  
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2013 Mercedes C300 sport sedan
From what feed back I have heard and read here in forums is that OE tuning is one of the best ones for Mercedes I am debating to tune my car just cause people don’t have much reviews or after comments but I am in the same boat as you
I just want to make it a little faster as well as not mess up my car
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Old Jul 29, 2021 | 03:30 PM
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S204 C250 CDI Sport

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Old Jul 29, 2021 | 03:50 PM
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2013 Mercedes C300 sport sedan
Originally Posted by Gazwould
link?
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Old Aug 4, 2021 | 11:36 AM
  #7  
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2012 Mercedes-Benz C-Class C 300 Sport 4MATIC
I found a local tuner and they adjusted the timing and air/fuel ratios, I am only allowed to run 93 octane now. Car is 100% more fun to drive.

Also added a strut bar under hood and that was a cheap but easy way to help with handling with the additional hp.
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Old Aug 4, 2021 | 03:15 PM
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S204 C250 CDI Sport
Alutec copy ?
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Old May 9, 2022 | 01:37 AM
  #9  
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From: Quebec Canada
C300 2010 4matic
Originally Posted by Gazwould
Have you try it? What are the true proven benefit?
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Old May 9, 2022 | 04:47 AM
  #10  
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S204 C250 CDI Sport
Eliminated the throttle pedal delay and gives you torque earlier .

First quarter of travel light inputs vertualy did nothing , now there is a response .
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Old May 9, 2022 | 06:41 AM
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2011 C300 4matic Sport (W204)
Originally Posted by floridaorange;[url=tel:8388884
8388884[/url]]

Also added a strut bar under hood and that was a cheap but easy way to help with handling with the additional hp.
I can attest to awesomeness of the front strut brace. I got one made by Megan for about $125 and it is so much better on turns. Easy install. Must have!!
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Old May 9, 2022 | 11:12 AM
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S204 C250 CDI Sport
Mine was a challenge and still is .

But then it was made for a lhd V6 or V8 with a flat engine cover but marketed falsely for my OM651 !
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Old May 26, 2022 | 06:33 PM
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2018 C300 Cabriolet
Did you get a chance to get the OE tune? I'm also curious about getting it.
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Old May 27, 2022 | 10:20 AM
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@AMR Performance is definitely the move. Hit up @AMR_Matt !
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Old May 27, 2022 | 01:28 PM
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Originally Posted by DIVINE AMG
@AMR Performance is definitely the move. Hit up @AMR_Matt !
So, what's the performance for a NA 3.5l V6? Those cars are all turbocharged and it's easy to boost performance with a super- or turbocharged car. Not so easy with an NA car with just an ECU tune. I'm not trying to call you out, but what can you do with an NA car?

EDIT: Wow! You're claiming 20-30 hp for a W203/W204 C350. I'm assuming that you are bringing those up from 265hp to 295hp with the non-GDI engines. If so, and you can do that with a C300 3.5l car, that's impressive. What other mods are required?

Last edited by JettaRed; May 27, 2022 at 01:33 PM.
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Old Sep 5, 2023 | 07:40 PM
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2014 mercedes benz c300 4matic sport
Originally Posted by Marshall Craggy
Good morning all,

I want to tune my 2014 C 300 Luxury 3.5 Litre V6; I don't want to get smoked on the road by a 4 cylinder Ford Focus (any more) I guess I didn't buy the best brand of luxury car in the world to have diminished performance (I also guess I didn't buy an AMG, but it seems like most of the V6 cars out there have much more impressive numbers)
I searched online & sent some emails & came up with this list: ** if anyone has experience with these companies & can offer any guidance, I'd be terribly appreciative! **

https://www.vrtuned.com/tuned-ecu-tu...152690987.html - plug & play $700
https://www.vrtuned.com/tuned-ecu-flash-tune-mercedes-c300-30l-cdi-blue-w204-1114-p-150775599.html This one you have to send it in for a bench tune $800
(VR tuned says these are both for the C300 V6)
https://shop.amrperformance.com/prod...e-ship-in-ecu/ - You have to send this one in $600
https://www.eurocharged.com/ecutunin...-software-2012 This LOOKS great, but at $1000, the other one is $1200
https://www.eurocharged.com/ecutunin...-software-2012

So if anyone has experience with these companies or tunes PLEASE let me know, all input will be valued!
Is it a nightmare to remove the ECU? Nobody has their engine blow up with a bad tune?

hello, i just got the 2014 mercedes benz c300 4matic sport and im thinking about getting amr since you can just flash it instead of shipping the ecu. i don’t know if there’s any advantage but i think it’s easier overall. also you can add burble tune and tcu tune, which i don’t know what that really do but i’m going email them and ask about it. anyways did you tune your car? if so what you decided? and how is it?

Last edited by w204.chris; Sep 5, 2023 at 07:43 PM.
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Old Sep 6, 2023 | 11:07 AM
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Originally Posted by w204.chris
hello, i just got the 2014 mercedes benz c300 4matic sport and im thinking about getting amr since you can just flash it instead of shipping the ecu. i don’t know if there’s any advantage but i think it’s easier overall. also you can add burble tune and tcu tune, which i don’t know what that really do but i’m going email them and ask about it. anyways did you tune your car? if so what you decided? and how is it?
We also offer remote tuning for your ECU and TCU and can do a burble tune. Feel free to email us at sales@EurochargedBoston.com for more information and to get a quote with a discount!
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Old Sep 6, 2023 | 12:53 PM
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2014 mercedes benz c300 4matic sport
Originally Posted by ECBoston
We also offer remote tuning for your ECU and TCU and can do a burble tune. Feel free to email us at sales@EurochargedBoston.com for more information and to get a quote with a discount!
I just contacted you guys, thank you!
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Old Sep 7, 2023 | 08:55 AM
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@ECBoston your web server is down.

Edit: Ha! It’s back up.

Edit again: www.eurocharged.com is the website that comes up.

Last edited by JettaRed; Sep 7, 2023 at 09:01 AM.
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