BMW ecu Siemens MS40 TunerPro maps

bmw 320i e36 remap ecu siemens ms40

BMW 320i and 520i Siemens MS40 TunerPro chiptuning maps.

bmw 320i e36 remap ecu siemens ms40

New bin definition files (xdf) series for BMW with engine control unit Siemens MS40.

Supported cars:

  • BMW 3 series (E36) 320i engine M50B20
  • BMW 5 series (E34) 520i engine M50B20

Knowledge, experience, calibration studies and bench tests are the starting point for the development of the above mentioned bin definition files (xdf).

A free chiptuning software combined with competitive prices (50 euro) are the milestones of our philosophy.

Through the definition files, the remapping software TunerPro identifies the engine working parameters which allow to obtain the maximum power and torque without affecting the degree of reliability.

Please note: the maps listed may not be present in all vehicles because of the different software update and calibration numbers.

bmw 520i e34 remap ecu siemens ms40


Prices (50 euro) and supported vehicles are available in the main Cars bin definition files area.

Dyno Tests

Example of Stage1 on BMW 3 series (E36) 320i: +15hp / +20Nm

TunerPro available maps

  • Fuel: main injection time (group 1 + group 2), fuel enrichment at wide open throttle (group 1 + group 2)
  • Ignition: main spark advance (group 1 + group 2), knock detection factor (divided by cylinder and group 1 + 2).
  • RPM Limiters: RPM Limiter (group 1 + group 2).
bmw 320i 520i ecu tuning siemens ms40 with tunerpro

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