Autotuner Update BMW MSS52, MSS54, and MSS54HP ECUs via OBD

By | June 16, 2026

BMW Siemens MSS5x: Live via 100% OBD!
The legends of BMW Motorsport have arrived on your AutoTuner Tool! Tune the legendary MSS52, MSS54, and MSS54HP ECUs powering the greatest Bavarian sports cars of the 2000s.

Exclusive Coverage:
BMW M3 – 3.2i (M)
BMW Z4 – 3.2i (M)
BMW M5 – 4.0i
BMW Z8 – 4.0i
Method: 100% OBD (Normal Read). An ultra-secure solution through the diagnostic port to pamper these collector cars with zero removal required!

Key Features:
Type: Engine Control Unit (ECU)
Mode: OBD NR
Readout: Calibration
MCU: MC68336
Read time: 2min 30sec
Write time: 2min 15sec
Checksums correction

Compatibility List*:
BMW Models: M5 (1995) / Z8 (1999) / M3 (1998) / Z4 (2002)
BMW Engines: 4.0i / 3.2i (M)
*The list may evolve over time.

autotuner update bmw mss5x