Mercedes 300 (3.0i) Tuning
Supported in 6 Mercedes models, 1997+.
Mercedes
6 supported 300 (3.0i) applications
Models With the Mercedes 300 (3.0i)
All Supported Mercedes 300 (3.0i) Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| CLS | 2004+ | C219 | 231 hp | ECU Bosch ME9.7 | AutoTuner |
| E | 2009+ | W212 | 231 hp | ECU Bosch ME9.7 | AutoTuner |
| R | 2005+ | W251 | 231 hp | ECU Bosch ME9.7 | AutoTuner |
| S | 1997+ | W220 | 231 hp | ECU Bosch ME9.7 | AutoTuner |
| SL | 2008+ | R230FL | 231 hp | ECU Bosch ME9.7 | AutoTuner |
| SLK | 2004+ | R171 | 231 hp | ECU Bosch ME9.7 | AutoTuner |
About Mercedes 300 (3.0i) tuning
We tune the Mercedes 300 (3.0i) in 6 applications across the CLS, E, R, S, SL, SLK, from 1997+, in gasoline form, with stock outputs of 231 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 ME9.7.
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.