Mercedes 300 MHEV Tuning
Supported in 4 Mercedes models, 2021+.
Mercedes
8 supported 300 MHEV applications
Models With the Mercedes 300 MHEV
All Supported Mercedes 300 MHEV Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| C | 2021+ | W206 | 258 hp | TCU Bosch VGS-NAG3 | AutoTuner |
| C | 2021+ | W206 | 258 hp | ECU Bosch MG1CS100 | AutoTuner |
| CLE | 2023+ | A236-C236 | 258 hp | TCU Bosch VGS-NAG3 | AutoTuner |
| CLE | 2023+ | A236-C236 | 258 hp | ECU Bosch MG1CS100 | AutoTuner |
| E | 2024+ | W214 | 258 hp | TCU Bosch VGS-NAG3 | AutoTuner |
| E | 2024+ | W214 | 258 hp | ECU Bosch MG1CS100 | AutoTuner |
| GLC | 2023+ | X254 | 258 hp | TCU Bosch VGS-NAG3 | AutoTuner |
| GLC | 2023+ | X254 | 258 hp | ECU Bosch MG1CS100 | AutoTuner |
About Mercedes 300 MHEV tuning
We tune the Mercedes 300 MHEV in 8 applications across the C, CLE, E, GLC, from 2021+, in gasoline form, with stock outputs of 258 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 MG1CS100, Bosch VGS-NAG3.
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.