Siemens MS42 OBD Protocol Release!
Dear Users,
Take full control over legendary late-90s Bavarian straight-six powerplants! We are thrilled to announce official support for the Siemens MS42 ECU via 100% OBD Normal Read (NR) on your AutoTuner Tool.
Powering the iconic BMW M52TU engine generation (Double VANOS), this release targets the thriving “Youngtimer” market.
⚡ Method: 100% OBD (Normal Read / Write)
Maximum workshop efficiency with zero ECU removal. Simply plug your Tool into the vehicle’s diagnostic port, perform a real hardware read (Normal Read), and flash your custom file safely within minutes.
🚗 Supported BMW Lineup (M52TU Engines):
- 3-Series (E46): 320i, 323i, 328i (1998+)
- 5-Series (E39): 520i, 523i, 528i (1995+)
- 7-Series (E38): 728i (1994+)
- Z3: 2.0, 2.3, 2.8 (1995+)
Update your software today and elevate the driving dynamics of BMW’s finest 6-cylinder classics!
The AT Team
Key Features
- Type: Engine Control Unit (ECU) ⚙️
- Mode: OBD NR 🔌
- MCU: C167 (29F400) 🖥️
- Read time: 1min 30sec ⏱️
- Write time: 1min 30sec ⏱️
- Checksums correction ✅
Compatibility List*
BMW Models: 3-series (1998) / 5-series (1995) / 7-series (1994) / Z3 (1995) / Z3 (1998)
BMW Engines: 20i / 23i / 28i / 2.0 / 2.3 / 2.8
*The list may evolve over time.
