Mercedes 350 CDI ECU Tuning & Remapping

Professional ECU tuning and remapping for the Mercedes 350 CDI diesel engine. Our dyno-tested Stage 1 calibrations improve torque delivery, throttle response and drivability, with optional DPF, EGR and AdBlue/SCR solutions for supported ECUs.

+40 hp
Max power gain
+66 Nm
Max torque gain
2
ECU variants covered
Diesel
Fuel type

Performance Gains (Dyno-Tested)

EngineStockTunedHP GainTorque GainECU
350 CDI265 cv303 cv+40 hp+63 NmEDC17CP46
350 CDI258/265 cv287/294 cv+31 hp+66 NmEDC17CP57

Figures are dyno-tested averages and may vary with hardware condition and fuel quality.

Available ECU Services for this Engine

The following solutions are supported on the ECU(s) of this vehicle (Diesel):

AdBlue DPF DTC Removal EGR Flaps/Swirl Removal Hot Start Fix MAF Removal Readiness Calibration Speed Limiter Removal StartStop Disable TVA Removal Torque Monitoring Disable

Technical Notes per ECU

Disconnection and read requirements differ by ECU. The notes below apply to the specific ECU listed; the exact removal scope per service is confirmed on each service page.

EDC17CP46
EGR off ACTUATOR PLUG MUST BE DISCONNECTED
DPF off DPF PRESSURE AND TEMPERATURE SENSORS CAN BE DISCONNECTED
AdBlue/SCR off PLUG FROM ADBLUE MODULE MUST BE DISCONNECTED SENSORS CAN BE DISCONNECTED
EDC17CP57
EGR off ACTUATOR PLUG MUST BE DISCONNECTED
DPF off DPF PRESSURE AND TEMPERATURE SENSORS MUST BE DISCONNECTED
AdBlue/SCR off ADBLUE ECU AND NOx SENSORS MUST BE DISCONNECTED

Each note is tagged with the service it refers to and applies to the ECU it is listed under. Mechanical preparation is the installer's responsibility. Emission-related solutions are for off-road or motorsport use where permitted by law.

Supported ECU(s): EDC17CP46, EDC17CP57

Frequently Asked Questions

How much power can a Mercedes 350 CDI gain with Stage 1 tuning?

Stage 1 ECU tuning for the Mercedes 350 CDI can add up to +40 hp and +66 Nm of torque, based on dyno-tested calibrations. Actual figures depend on the exact engine variant and hardware condition.

Can DPF, EGR and AdBlue be removed on the Mercedes 350 CDI?

Emission system solutions such as DPF, EGR and AdBlue/SCR off are available for supported ECUs, strictly for off-road or motorsport use where permitted by law. Mechanical preparation and sensor handling instructions are provided per ECU.

How do I order and how fast is the tuning file delivered?

Upload your original ECU read through the tuning page and receive the calibration by email. Most files are delivered within 5-15 minutes during working hours (daily, 07:00-23:00 CET).

Is the Mercedes 350 CDI tuning file plug-and-play?

You receive a ready-to-flash calibration based on your original file. Flashing it back to the ECU and any related mechanical preparation are handled by the installer with their own tools.

Order your Mercedes 350 CDI tuning file

Upload your original ECU file and receive a professional calibration in 5-15 minutes.

Tune Your File →

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