Unleash Your Diesel’s Tuning Potential
Professional ECU tuning and performance modifications for diesel vehicles. Get more power, better fuel economy, and enhanced driving experience.
Unlocking Diesel Power: Mercedes ECU Tuning with EDC17 & CRD3
A deep dive into the tuning potential of Bosch EDC17 and Delphi CRD3 ECUs found in Mercedes diesel platform's
Published on 10 September 2025 by Matt @ DieselKraft
Mercedes diesel engines are renowned for their durability and torque-rich performance. But beneath the surface lies untapped potential—especially when paired with the right ECU tuning strategy.
In this post, we explore two of the most common diesel ECUs found in modern Mercedes platforms: Bosch’s EDC17 and Delphi’s CRD3. Whether you're tuning a C220 CDI or a Sprinter 319, understanding these control units is key to unlocking safe, reliable gains.
🧠 ECU Overview: EDC17 vs CRD3
- EDC17 (Bosch): Found in most models from 2006+, this model of ECU supports advanced injection control, turbo management, and DPF strategies. Variants include EDC17CP01,CP46, C42/43, CP57, and CP60.
- CRD3 (Delphi): Also found in most models from 2007+, CRD3.x and CRD3.P1 are a little bit of a riskier ECU to work with, especially over OBD, we would recommend benching these ecu's
🔧 Tuning Capabilities
Both ECUs support Stage 1 and Stage 2 remaps, with options for:
- Torque curve reshaping for smoother delivery
- Fuel economy optimization (especially in CRD3+)
- DPF/EGR/AdBlue off (for off-road or motorsport use)
- Speed limiter removal and throttle response enhancement
🚗 Real-World Gains
On a stock C220 2.1CDI with CRD3+, expect:
- +100 Nm torque and +30 HP with Stage 1
- Improved throttle response and smoother gear transitions
- Up to 8% better fuel economy in eco-tuned profiles
- Fuel Economy After Tuning
📈 Safe, Repeatable Tuning
At DieselKraft, we prioritize reliability. All tuning files are tested for thermal limits, injector duty cycles, and boost control tolerances. We log every session and tag versions for rollback and diagnostics.
Ready to Unleash Your Diesel's Power?
Contact us today for a free consultation and discover how professional ECU tuning can unlock real diesel performance gains — more power, better torque, and improved fuel economy.
Get In Touch
Ready to transform your diesel's performance? Contact us to schedule your appointment.
Messenger
Click here to message usinfo@dieselkraft-performance.com
Location
Based in Batley, West Yorkshire
Mobile service around the whole of Yorkshire area
Hours
Monday‑Sunday: By appointment only