Mercedes 350 CGI (3.5i) Tuning
Supported in 3 Mercedes models, 2004+.
Mercedes
3 supported 350 CGI (3.5i) applications
Models With the Mercedes 350 CGI (3.5i)
All Supported Mercedes 350 CGI (3.5i) Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| C | 2010+ | W204 | 292 hp | ECU Bosch MED9.7 | AutoTuner |
| CLS | 2004+ | C219 | 292 hp | ECU Bosch MED9.7 | AutoTuner |
| E | 2009+ | W212 | 292 hp | ECU Bosch MED9.7 | AutoTuner |
About Mercedes 350 CGI (3.5i) tuning
We tune the Mercedes 350 CGI (3.5i) in 3 applications across the C, CLS, E, from 2004+, in gasoline form, with stock outputs of 292 hp. Calibrations are written on AutoTuner for your exact hardware and fuel, then proven on our Dynojet 424xLC2 in Jenison, MI.
This engine runs on: Bosch MED9.7.
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.