Mercedes 350 (3.5i) Tuning
Supported in 13 Mercedes models, 2002+.
Mercedes
42 supported 350 (3.5i) applications
Models With the Mercedes 350 (3.5i)
All Supported Mercedes 350 (3.5i) Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| C | 2007+ | W204 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| CLC | 2004+ | 272 hp | ECU Bosch ME9.7 | AutoTuner | |
| CLK | 2003+ | W209 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| CLS | 2010+ | C218 | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| CLS | 2010+ | C218 | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| CLS | 2010+ | C218 | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| CLS | 2010+ | C218 | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| CLS | 2004+ | C219 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| E | 2013+ | W212 | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| E | 2013+ | W212 | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| E | 2013+ | W212 | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| E | 2013+ | W212 | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| E | 2009+ | W212 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| E | 2006+ | W211 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| GLK | 2010+ | X204 | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| GLK | 2010+ | X204 | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| GLK | 2010+ | X204 | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| GLK | 2010+ | X204 | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| GLK | 2008+ | X204 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| ML | 2011+ | W166 | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| ML | 2011+ | W166 | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| ML | 2011+ | W166 | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| ML | 2011+ | W166 | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| ML | 2005+ | W164 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| R | 2011+ | W251-FL | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| R | 2011+ | W251-FL | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| R | 2011+ | W251-FL | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| R | 2011+ | W251-FL | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| R | 2005+ | W251 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| S | 2005+ | W221 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| SL | 2013+ | R231 | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| SL | 2013+ | R231 | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| SL | 2013+ | R231 | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| SL | 2013+ | R231 | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| SL | 2002+ | R230 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| SLK | 2011+ | R172 | 306 hp | ECU Bosch MED17.7.1 | AutoTuner |
| SLK | 2011+ | R172 | 306 hp | ECU Bosch MED17.7.3 | AutoTuner |
| SLK | 2011+ | R172 | 306 hp | TCU Siemens VGSx-NAG2 | AutoTuner |
| SLK | 2011+ | R172 | 306 hp | TCU Continental VGS4-NAG2 | AutoTuner |
| SLK | 2004+ | R171 | 272 hp | ECU Bosch ME9.7 | AutoTuner |
| Sprinter | 2014+ | W906-FL | 258 hp | ECU Bosch ME9.7 | AutoTuner |
| Viano | 2010+ | W639FL | 258 hp | ECU Bosch ME9.7 | AutoTuner |
About Mercedes 350 (3.5i) tuning
We tune the Mercedes 350 (3.5i) in 42 applications across the C, CLC, CLK, CLS, E, GLK, ML, R, S, SL, SLK, Sprinter, Viano, from 2002+, in gasoline form, with stock outputs of 258-306 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, Bosch MED17.7.1, Bosch MED17.7.3, Continental VGS4-NAG2, Siemens VGSx-NAG2.
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.