System: Transmission Control
BMW System: EGS
Type: Drive
System: Transmission Control
BMW System: EGS
Type: Drive
System: Transmission Control
BMW System: EGS
Type: Drive
Idle Speed Controller
MS40 was a new ECU for BMW, manufactured by Siemens instead of the previous Bosch Motronics. BMW split the M50 24v engines and used Siemens for some of the 2.0 litres, and Bosch continued on with the 2.5l.
MS40.0 is a rare ECU used on non VANOS 2.0l, and MS40.1 introduced VANOS control.
Auxiliary Air -Flow Rate too High
The next generation Siemens MS ECUs introduced many of the OBD2 features. This includes Catalytic Converter monitoring and Long / Short term Fueling and Ignition Adaptation. The MS41 was used on the M52 series of engines, MS42 on the M52TU series, and MS43 on the M43 4 Cylinders.
The OBD2 P codes fault protocol was not activated in European markets on this group, as currently it was not required by law.
Auxiliary Air -Flow Rate too High
The next generation Siemens MS ECUs introduced many of the OBD2 features. This includes Catalytic Converter monitoring and Long / Short term Fueling and Ignition Adaptation. The MS41 was used on the M52 series of engines, MS42 on the M52TU series, and MS43 on the M43 4 Cylinders.
The OBD2 P codes fault protocol was not activated in European markets on this group, as currently it was not required by law.
Auxiliary Air -Flow Rate too High
The next generation Siemens MS ECUs introduced many of the OBD2 features. This includes Catalytic Converter monitoring and Long / Short term Fueling and Ignition Adaptation. The MS41 was used on the M52 series of engines, MS42 on the M52TU series, and MS43 on the M43 4 Cylinders.
The OBD2 P codes fault protocol was not activated in European markets on this group, as currently it was not required by law.
Activation Tank Venting Valve
DME M5.2 and M5.2.1 are Bosch ECUs, used on the M44 4cyl engine, and the M62 V8, and the M72 V12.
Activation Tank Venting Valve
DME M5.2 and M5.2.1 are Bosch ECUs, used on the M44 4cyl engine, and the M62 V8, and the M72 V12.
Tank Vent Valve
The Bosch DME 7.2, also known as ME7.2, can be found on a number of V8 Petrol engines, used in the 5 and 7 Series amongst others. It uses Torque modeling to control the engine torque output depending on Throttle Pedal Position.
Separate Valve
The first BMW ABS system, This was a 3 channel system, controlling braking to the front wheels,and a single line for both rear wheels. The wheel speed info could be passed via data lines to traction control systems, which could determine if the vehicle speed signal given from the rear driven axle did not match with the front wheel speed signals and request torque reduction intervention from the ASC (Anti Skid Control) throttle body.
Speed Signal Front Right
The updated version of BMW’s ABS system, this was more advanced. Improvements include a 4 channel system for independent rear wheel braking, which allowed a more active ASC system. With individual braking, not only could a torque reduction be requested via the ASC secondary throttle body, but independent wheel braking could be used to control individual wheel slip as part of a stability program.
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