Engine Control Unit MS 6.4

The MS 6.4 engine control unit manages gasoline engines up to 12 cylinders. As a member of our MS 6 family it features a powerful digital processing core with floating point arithmetic and a high-end FPGA for ultimate performance and flexibility. The MS 6 family utilizes a new software development process based on MATLAB/Simulink which significantly speeds algorithm development by using automatic code and documentation generation. Custom functions can be quickly and easily generated. The flexible hardware design allows the MS 6.4 to support complex or unusual engine or chassis configurations.


  • Optimized for low and high pressure injection
  • HP package for flat and V-engines inclusive
  • Measurement with 38 analog inputs
  • Multiple Software options available


High pressure injection

Integrated power stages for the use of:

  • 4 cylinders up to 12,500 rpm
  • 6 cylinders up to 9,500 rpm
  • 8 cylinders up to 8,500 rpm

(depending injection types and pressure ranges)

HP package for flat and V-engines inclusive (2nd Bank, MSV2, cylinder 7&8, external cylinder 9-12)

Low pressure injection

  • Max. 12 cylinders up to 12,500 rpm, high impedance injectors only


  • 12 x ignition control, IGBT or BJT, coils with integrated amplifier

Physical engine model for fast application

  • determine engine load by throttle position or air pressure signals
  • mixture control and basic ignition guided by main signal relative load rl
  • Subsystems pit speed-, launch-, rpm-limiter and ASR are integrated inside torque control
  • Separated power cut functions to assist several gear cut systems
  • Diagnostics
  • Integrated safety strategy for 2 electronic throttle controls

Integrated support of manual gearshift

Electronic throttle control




Turbo control


Traction control


Launch control


LTE Ethernet telemetry support


Internal logger

Partition 1, 1 GB memory,

diagnostic channels,

50 free configurable channels,

fastest sampling 50 Hz,

Logger options

See Upgrades

Technical Specifications

Mechanical Data

Aluminum housing

2 Bosch connectors

196 pins in total


226 x 181 x 44 mm


1,086 g

Protection Classification


Temp. range (at internal sensors)

-20 to 80°C

Electrical Data

Power supply

6 to 18 V


Dual Core 667 MHz, FPGA


38 analog inputs


6 x reserved for electronic throttle controls


10 x no integrated pull-up


4 x option for angle synchronous measurement, no integrated pull-up


5 x fixed 3.01 kOhm pull-up


13 x switchable 3.01 kOhm pull-up


6 internal measurements


1 x ambient pressure


1 x acceleration 3-axis


2 x ECU temperature


2 x ECU voltage


9 function related inputs


2 x thermocouple exhaust gas temperature sensors (K-type)


2 x Lambda interfaces for LSU 4.9 sensor types


1 x lap trigger/beacon input


4 x knock sensors


10 digital inputs


1 x switchable Hall or inductive sensor for flywheel measurement


2 x Hall sensor for sync wheel detection


4 x switchable Hall or DF11 sensors for camshaft position or wheel speed


2 x switchable Hall or inductive sensors for turbo speed measurement


1 x digital switch for engine ON/OFF

Sensor supplies and screens

4 x sensor supplies 5 V / 50 mA

3 x sensor supplies 5 V / 150 mA

7 x sensor grounds

2 x sensor screens


38 function related outputs

High Pressure Injection


2 x high pressure pump with MSV control

8 x high pressure injection for magnetic injectors

Low Pressure Injection


12 x 2.2 A low pressure injection for high impedance injectors



12 x ignition control, IGBT or BJT, coils with integrated amplifier

2 x 8.5 A H-bridge reserved for electronic throttle

2 x 4 A pwm lowside switch for Lambda heater


19 freely configurable outputs


1 x 8.5 A H-bridge


2 x 4 A pwm lowside switch


4 x 3 A pwm lowside switch


8 x 2.2 A pwm lowside switch


4 x 1 A pwm lowside switch


3 output signals


1 x engine rpm


1 x flywheel


1 x trigger wheel

Software Tools (free download)

Data Analysis tool WinDarab V7

System Configuration tool RaceCon or later

Mating Connectors (not included)

Mating Connector 91 pins


Mating Connector 105 pins



2 Ethernet




1 RS232

1 Time sync synchronization Ethernet

3 Network screens

Installation Notes

Maintenance Interval: 220 h or a maximum of two years

Depending on your experiences with calibration of ECUs, we recommend calibration support from Bosch Motorsport.

Please remember that the mating connectors and the programming interface MSA-Box II are not included and must be ordered separately.

Ordering Information

Engine Control Unit MS 6.4

Order number: F02U.V02.019-07

Engine Control Unit MS 6 RX

FIA-homologated version for WRX Championship

Order number: F02U.V02.570

Conversion MS 6.4 to MS 6 RX

Order number: F02U.V02.571

Software Options

Customer Code Area

Order number: F02U.V02.137-01

Logger Package I

Order number: F02U.V01.993-01

Logger Package II

Order number: F02U.V01.998-01

Logger Package III

Order number: F02U.V02.082-01

Gear Control Package 1

Order number: please contact Mega-Line

Gear Control Package 2

Order number: F02U.V02.108-01

Innovation License Device

Order number: F02U.V02.510-01

Innovation Package Project

Order number: F02U.V02.511-01

SW Package MS 6 Drag 1

Order number: F02U.V0U.409-01

SW Package MS 6 Drag 2

Order number: F02U.V0U.410-01


Breakout Box BOB MS 6

Order number: F02U.V02.294-01

Mating Connector 91 pins

Order number: F02U.B00.711-01

Mating Connector 105 pins

Order number: F02U.B00.712-01

System Configuration Tool RaceCon

Order number: free download from our website

Data Analysis Tool WinDarab V7

Order number: free download from our website


Hardware Upgrade for CCA per device

Provides the option to run customer developed software code on Bosch ECU

Logger Package I

Extension for Partition 1: up to 720 channels, fastest sampling 1,000 Hz or 1 syncro, (max number of 1,080 channels to respect)

Logger Package II

Partition 2: 720 channels, 1 GB memory, fastest sampling 1,000 Hz or 1 syncro, long-term recording, own data protection code (max number of 1,080 channels to respect)

Logger Package III

Copy data of partition 1 to USB data stick

Gear Control Package 1

Gear control MEGA-Line functionality, has to be used with MEGA-Line components (License model via MEGA-Line) [included for base versions beginning with MS6A_BASE_0800 or comparable]

-- Link to MEGA-Line Support Request --

-- Link to MEGA-Line License Request Form --

Gear Control Package 2

Gear control Bosch Motorsport functionality

SW Package MS 6 Drag 1

Launch Timer
Launch Distance
Torque Pre-Control
Launch RPM Control
Universal Outputs for Time/Distance Controls

SW Package MS 6 Drag 2 (requires Drag 1 License)

Acceleration Sensor MM5.10 included
Time/Distance Boost Control
Driveshaft Speed Control
Driveshaft Gradient Control
Acceleration Control
Wheelie Control

Innovation License Device

Activation of engine speed functions* and near/far injection function per unit

Innovation Package Project

Activation of engine speed functions* and near/far injection function per project version

*Engine speed functions: second or backup engine speed sensor, quick engine start, detection of engine reverse rotation

Legal Restrictions

The sale of this product in Mexico is prohibited.


To get latest firmware, please contact your customer account manager or send an email to motorsport@bosch.de.