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ECU Tuning for Mercedes-Benz C300 W205 (2014+)

(M274.920 2.0L Inline-4 Turbocharged) 

(Bosch EDC17CP57 ECU/ECM)



- ECUPROGRAM tune file

- ECU Tune Install


C300 M274 Tuning Potential:


- - STOCK HP & TQ - -

245 HP / 273 FT-LB (370 Nm)


- - STAGE 1 - -

265 HP / 348 FT-LB (420 Nm)

Can be performed on stock C300


Stock power and gains vary based on conditions and state of the vehicle.


The Mercedes M274 engine is a 2.0-liter turbocharged inline-four gasoline engine that was introduced in 2011. This engine is known for its excellent performance and fuel efficiency, thanks to its direct fuel injection system, twin-scroll turbocharger, and advanced exhaust manifold integration. The M274 engine also features Mercedes-Benz's advanced BlueDIRECT technology, which optimizes combustion and reduces emissions. This powerful yet eco-friendly engine is widely used in various Mercedes-Benz models, including the C-Class, E-Class, and GLC-Class. The M274 engine has gained popularity among car enthusiasts worldwide for its impressive power output, smooth operation, and cutting-edge engineering, making it a highly sought-after engine in its class.


The EDC17CP57 is an engine control unit (ECU), also known as DME/ECM/DDE. It is responsible for controlling the fuel injection, turbocharging, and other engine management functions. In order to tune the Mercedes C300, it is necessary to modify the EDC17CP57 map, through ECU programming, remapping or through the use of an aftermarket tuning box.

DPF deletes are popular modifications for diesel owners looking to further improve the performance of their vehicle. DPF (Diesel Particulate Filter) and related system deletes involve removing these components from the exhaust system, which can reduce flow restriction to increase efficiency and performance.


There are several reasons why you might consider tuning, including:


- Increase Horsepower & Torque: The most noticable benefits of tuning your ECU is the increase in horsepower and torque. Even without aftermarket modifications, you can see a significant improvement in your engine's performance, resulting in faster acceleration and a more engaging driving experience.


- Improve Fuel Efficiency: While more HP and TQ is often the primary goal of tuning, many tuning parameters can also result in improved fuel efficiency. By optimizing the engine's performance, you can reduce the amount of fuel needed to accelerate and cruise, saving you money at the pump.


- Enhanced Reliability: By addressing common issues from the factory and making the engine more efficient, you can reduce the risk of breakdowns and extend the life of your vehicle.


Tuning File Fits:

2014 2015 2016 2017 2018

Mercedes Benx C300 (2.0 Litres, Turbocharged)

Mercedes C300 M274 Tuning (2014-2018)

SKU : EP-M274-C300-TUN
  • Tune your car at home with a flasher:

    - Alientech Powergate3+ [+$385]

         (Handheld Flasher)


    - Send in your ECU to get tuned and then shipped back

View parts for this car



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Supercharger Pulley Upgrade Kit for Audi with 3.0T supercharged (before 2016)



Look no further - ECUPROGRAM, your dream Performance Tuning & Upgrade Shop is here! For more information about our ECU tuning services and how it can benefit your vehicle, don't hesitate to reach out to us.

4527 1 St SE, Calgary, AB T2G 2L2, Canada

(403) 457-3650

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