Siemens SIM4LKE ECU Tuning
Engine control unit used in 5 supported models from 1 make.
Mercedes with the Siemens SIM4LKE
All Mercedes tunes- Mercedes C2000+W203, W204 · 180 Kompressor (1.8k), 200 CGI (1.8k), 200 Kompressor (1.8k), 230 Kompressor (1.8k)AutoTuner
- Mercedes CLC2004+180 Kompressor (1.8k)AutoTuner
- Mercedes CLK2003+W209 · 200 CGI (1.8k), 200 Kompressor (1.8k)AutoTuner
- Mercedes E2002+W211, W212 · 200 CGI (1.8k), 200 Kompressor (1.8k)AutoTuner
- Mercedes SLK2004+R171 · 200 Kompressor (1.8k)AutoTuner
About Siemens SIM4LKE tuning
The Siemens SIM4LKE engine control unit is supported in 5 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.