ENGINE · 2005-2010
S85 tuning
S85 — BMW E60 M5 / E63 M6 5.0 NA V10. V10 NA high-revving M-engine, 5.0 L, 507 HP @ 7750 RPM stock. Cars: BMW E60 M5 sedan, E61 M5 touring, E63 M6 coupe, E64 M6 cabrio.
Engine specs
| Engine code | S85 |
|---|---|
| Configuration | V10 NA high-revving M-engine |
| Displacement | 5.0 L |
| Production years | 2005-2010 |
| Stock power | 507 HP @ 7750 RPM |
| ECU family | Siemens MSS65 → |
Tuning stages on S85
| Stage 1 | +15-25 HP |
|---|---|
| Stage 2 | +30-50 HP (intake + cat delete + tune) |
| Stage 3 | +150+ HP (supercharger — rare, complex) |
Conservative real-world estimates. Actual results depend on hardware health, fuel quality, ambient temperature, and the specific calibration written.
Services available on S85
Common DTC codes on S85
Brands running S85
Workshop workflow
- Read the S85 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 Siemens MSS65 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 outer CRC is recomputed automatically.
- Flash via your existing flasher. Adaptation reset via OEM scan tool if required.