ENGINE · 2008-2018
OM651 tuning
OM651 — Mercedes 2.0/2.2 CDI diesel. I4 diesel turbo, 2.1 L, 136-204 HP stock. Cars: Mercedes C200/220/250 CDI, E200/220/250 CDI, GLK 220 CDI, ML 250 CDI, Sprinter 313/316 CDI, Vito.
Engine specs
| Engine code | OM651 |
|---|---|
| Configuration | I4 diesel turbo |
| Displacement | 2.1 L |
| Production years | 2008-2018 |
| Stock power | 136-204 HP |
| ECU family | Bosch EDC17C57 / EDC17CP70 / EDC17C66 → |
Tuning stages on OM651
| Stage 1 | +35-50 HP / +90-130 Nm |
|---|---|
| Stage 2 | +70-90 HP (intake + downpipe + DPF off) |
| Stage 3 | +100+ HP |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on OM651
Common DTC codes on OM651
Brands running OM651
Workshop workflow
- Read the OM651 ECU via OBD or bench using your existing flasher (KESS3, AutoTuner, MPPS, Trasdata, FRF).
- Open Softechpro V5 and drag the .bin / .ori / .hex / .s19 / .frf onto the workspace. The Bosch EDC17C57 variant is auto-detected.
- Pick the service tab and apply Stage 1 / 2 / 3 / DPF OFF / EGR OFF / AdBlue OFF as required.
- Save patched .bin — the TPROT + multi-block CRC32 is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.