ECU Identification

DDE 1.0 of the M21 engine with turbocharger and two control units

Injection start control unit:

• BMW software version number: 2243623
• BMW hardware version number: 5t6
• Bosch identifier: 0281001078
• Bosch software version number: 2287356787
• Manufacturing code: 949

Fuel quantity control unit:

• Bosch identifier: 0281001080
• Bosch software version number: 2287356789
• BMW software version number: 2243644
• BMW hardware version number: 5t6
• Manufacturing code: 949

ECU Identification

DME M1.7.2 of the M43B18 engine with lambda-controlled mixture adaptation, unleaded Super version with manual transmission

• Coding code: 801e
• Bosch hardware number: 0261203280
• Bosch software number: 1267358594
• BMW hardware number: 1743249
• BMW software number: 001
• Manufacturing code: 471

ECU Identification

MS40.1 Siemens with Vanos system of the M50B20 engine

• Siemens hardware number: 6577014006f
• Siemens software number: 6577015014
• Generation number: 000020MS40
• Current number: 1023226
• Manufacturing date: 42/95
• BMW hardware number: 1744597
• Check number: 1748120
• Part number: 1429438

ECU Identification

MS40.0 Siemens of the M50B20 engine without Vanos system for E34/E36 series

• Siemens hardware number: 6577014002f
• Siemens software number: 6577015007
• Generation number: 000010MS40
• Current number: 0048409
• Manufacturing date: 23/92
• BMW hardware number: 1748006
• Check number: 1738283
• Part number: 1748210

ECU Identification

DME M3.3.1 version for the M50B25 engine with VANOS system

• Bosch hardware number: 0261200413
• Bosch software number: 1267357623
• BMW hardware number: 1703563
• BMW software number: 174
• Check number: 1748107
• Part number: 1740249
• Manufacturing code: 465

ECU Identification

M20B20 with lambda-controlled mixture adaptation, manual transmission version

• Coding code: c09e
• Bosch hardware number: 0261200381
• Bosch software number: 1267356205
• BMW hardware number: 1730574
• BMW software number: 001
• Manufacturing code: 952

ECU Identification

S38B36 with lambda-controlled mixture adaptation, unleaded Super version with manual transmission

• Coding code: 801e
• Bosch hardware number: 0261200350
• Bosch software number: 1267356412
• BMW hardware number: 1317113
• BMW software number: 001
• Manufacturing check code: 164

ECU Identification

M42B18 in E36 chassis with lambda-controlled mixture adaptation for ECE/EC/S/CH/A/USA markets

• Coding code: 801e
• Bosch hardware number: 0261200950
• Bosch software number: 1267357108
• BMW hardware number: 1739423
• BMW software number: 001
• Manufacturing code: 265

ECU Identification

DDE 2.0 of the M51 engine with turbocharger

• BMW version number: 5E4 | LDF Nippon Denso
• Injection start characteristic map: 0 | with exhaust gas recirculation
• BMW software number: 2245683
• Bosch identifier: 0281001119
• Bosch software number: 2287358
• Check number: 2243421