ENGINE · 2006-2014
M156 tuning
M156 — Mercedes-AMG 6.2 NA V8 (hand-built one-man-one-engine). V8 NA DOHC hand-built, 6.2 L, 451-571 HP (Black Series 622) stock. Cars: Mercedes-AMG C63 W204, E63 W211/W212, SL63, S63, ML63, R63, CLS63, SLS AMG (M159 variant).
Engine specs
| Engine code | M156 |
|---|---|
| Configuration | V8 NA DOHC hand-built |
| Displacement | 6.2 L |
| Production years | 2006-2014 |
| Stock power | 451-571 HP (Black Series 622) |
| ECU family | Bosch ME9.7 / MED17.7.2 → |
Tuning stages on M156
| Stage 1 | +20-30 HP |
|---|---|
| Stage 2 | +40-60 HP (intake + long-tube headers + cat delete + tune) |
| Stage 3 | +150+ HP (supercharger — Renntech, Weistec, Kleemann) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on M156
Common DTC codes on M156
Brands running M156
Workshop workflow
- Read the M156 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 ME9.7 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.