Delphi CRD3.40 ECU Tuning
Engine control unit used in 4 supported models from 1 make.
Mercedes with the Delphi CRD3.40
All Mercedes tunes- Mercedes A2012+W176 · 180 CDI (1.8), 200 CDI (1.8), 220 CDI (2.1)AutoTuner
- Mercedes B2013+W246 · 180 CDI (1.8), 200 CDI (1.8)AutoTuner
- Mercedes CLA2013+C117, C117-X117 · 200 CDI (1.8), 220 CDI (2.1)AutoTuner
- Mercedes GLA2013+X156 · 220 CDI (2.1)AutoTuner
About Delphi CRD3.40 tuning
The Delphi CRD3.40 engine control unit is supported in 4 models from Mercedes. We read, modify, and flash it with AutoTuner, then verify the result on our Dynojet 424xLC2 in Jenison, MI. A custom calibration optimizes fueling, ignition timing, boost, and torque limits for your exact build.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.