BMW · MSD81 ECU · petrol

BMW 3 SERIES MSD81 tuning files

Here is what the catalog holds for the BMW 3 SERIES on the MSD81. Across the matched variants stock power runs from 122 to 306 HP. 156 distinct variants are catalogued here. On this petrol engine the focus is sharper throttle and useful, repeatable gains. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All 3 SERIES coverage

Available solutions

Applicable work for the MSD81 on this petrol. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2 Swirl Flaps OffLambda / O2OPF/GPF Off

Engine variants & ECU software

156 distinct variants for the BMW 3 SERIES on the MSD81 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP

Variant 2

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: 0044CC0IHD0SIGA4S
Calibration: 0044CC0IHD0SIGA4S

Variant 3

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: 0044CC0IGD0SIFD5S
Calibration: 0044CC0IGD0SIFD5S

Variant 4

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: PX38699
Calibration: PX38699

Variant 5

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
SW upgrade: JZ97073
Calibration: JZ97073

Variant 6

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
SW upgrade: A515534
Calibration: A515534

Variant 7

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: 0044CC0IHD0SILA4S
Calibration: 0044CC0IHD0SILA4S

Variant 8

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
Calibration: 0044CC0IJE0SIEQ3S

Variant 9

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: NH80410
Calibration: NH80410

Variant 10

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: LJ78233
Calibration: LJ78233

Variant 11

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: VF20594
Calibration: VF20594

Variant 12

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU SW: 0044CC0IJE0S
ECU HW: 6577475205
SW upgrade: P180806
Calibration: P180806

Variant 13

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
SW upgrade: A381520
Calibration: A381520

Variant 14

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: PX58029
Calibration: PX58029

Variant 15

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
Calibration: 0044CC0IJE0SIEQ3S

Variant 16

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
SW upgrade: PV77721
Calibration: PV77721

Variant 17

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: P169230
Calibration: P169230

Variant 18

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU SW: 07611358
ECU HW: 07611780
SW upgrade: PV75966
Calibration: PV75966

Variant 19

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475271
SW upgrade: J011066
Calibration: J011066

Variant 20

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU SW: 0044CC0IJE0S
ECU HW: 6577475205
Calibration: 0044CC0IJE0SIEA3S

Variant 21

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475271
SW upgrade: VF21884
Calibration: VF21884

Variant 22

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: A222393
Calibration: A222393

Variant 23

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU SW: 07611358
ECU HW: 97653210
SW upgrade: JZ97506
Calibration: JZ97506

Variant 24

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
SW upgrade: E061532
Calibration: E061532

Variant 25

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: P158325
Calibration: P158325

Variant 26

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: P159117
Calibration: P159117

Variant 27

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475271
SW upgrade: A776077
Calibration: A776077

Variant 28

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: CZ83792
Calibration: CZ83792

Variant 29

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475271
SW upgrade: P175501
Calibration: P175501

Variant 30

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475271
SW upgrade: A222393
Calibration: A222393

Variant 31

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475207
SW upgrade: PV76850
Calibration: PV76850

Variant 32

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: PR43692
Calibration: PR43692

Variant 33

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: FA99012
Calibration: FA99012

Variant 34

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: 0044CC0IHD0SIKE1S
Calibration: 0044CC0IHD0SIKE1S

Variant 35

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: E066857
Calibration: E066857

Variant 36

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU SW: 07611358
ECU HW: 07611780
SW upgrade: LJ36698
Calibration: LJ36698

Variant 37

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: PV77011
Calibration: PV77011

Variant 38

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: P15733
Calibration: P15733

Variant 39

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: VG75356
Calibration: VG75356

Variant 40

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: PX38414
Calibration: PX38414

Variant 41

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: E270567
Calibration: E270567

Variant 42

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: L347442
Calibration: L347442

Variant 43

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: VF19460
Calibration: VF19460

Variant 44

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: A490910
Calibration: A490910

Variant 45

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: 0044CC0IHD0SIGA1S
Calibration: 0044CC0IHD0SIGA1S

Variant 46

ECU

Catalog engine: 3000 306HP
Engine code: N54B30O0
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
ECU HW: 6577475205
SW upgrade: P169065
Calibration: P169065

Variant 47

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: A491027
Calibration: A491027

Variant 48

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: L340272
Calibration: L340272

Variant 49

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP
SW upgrade: C162556
Calibration: C162556

Variant 50

ECU

Catalog engine: 3500 24V 306HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 306 HP

Variant 51

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: PA21875
Calibration: PA21875

Variant 52

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: E513008
Calibration: E513008

Variant 53

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: A383220
Calibration: A383220

Variant 54

ECU

Catalog engine: 3000 265HP
Engine code: N52B30
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
ECU SW: 7612455
ECU HW: 6577475261
SW upgrade: 0044CC0IHF0SIGX7S
Calibration: 0044CC0IHF0SIGX7S

Variant 55

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: 0044CC0IHF0SIEX7S
Calibration: 0044CC0IHF0SIEX7S

Variant 56

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: PY15116
Calibration: PY15116

Variant 57

ECU

Catalog engine: 3000 265HP
Engine code: N52B30
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
ECU SW: 7612455
ECU HW: 6577475261
SW upgrade: CF39254
Calibration: CF39254

Variant 58

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: CT92019
Calibration: CT92019

Variant 59

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: CT92792
Calibration: CT92792

Variant 60

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: A133062
Calibration: A133062

Variant 61

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: PX70033
Calibration: PX70033

Variant 62

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: PA20388
Calibration: PA20388

Variant 63

ECU

Catalog engine: 3000 265HP
Engine code: N52B30
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
ECU SW: 7612455
ECU HW: 6577475261
SW upgrade: PV95453
Calibration: PV95453

Variant 64

ECU

Catalog engine: 3000 265HP
Engine code: N52B30
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
ECU SW: 7612455
ECU HW: 6577475261
SW upgrade: CW48019
Calibration: CW48019

Variant 65

ECU

Catalog engine: 3000 265HP
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
SW upgrade: 0044CC0IHF0SIKC1S
Calibration: 0044CC0IHF0SIKC1S

Variant 66

ECU

Catalog engine: 3000 265HP
Engine code: N52B30
Generation: G2x 03/2019-
Matched gains engine: 330d 265
Controller brand: SIEMENS
ECU: MSD81
Stock power: 265 HP
Stage 1 power: 310 HP
Power increase: +45 HP (+17%)
Stock torque: 620 Nm
Stage 1 torque: 720 Nm
Torque increase: +100 Nm (+16%)
ECU SW: 7612455
ECU HW: 6577475261
SW upgrade: PV95556
Calibration: PV95556

Variant 67

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: PY96729
Calibration: PY96729

Variant 68

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP

Variant 69

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: 07628158
Calibration: 0044CC0IHF0SICC3S

Variant 70

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIFY9S
Calibration: 0044CC0IHF0SIFY9S

Variant 71

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SICF1S
Calibration: 0044CC0IHF0SICF1S

Variant 72

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: NM64621
Calibration: NM64621

Variant 73

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: E442237
Calibration: E442237

Variant 74

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: A489940
Calibration: A489940

Variant 75

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: 0044CC0IHF0SIKL2S
Calibration: 0044CC0IHF0SIKL2S

Variant 76

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIBG7S
Calibration: 0044CC0IHF0SIBG7S

Variant 77

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: 0044CC0IHF0SIFY3S
Calibration: 0044CC0IHF0SIFY3S

Variant 78

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: E125227
Calibration: E125227

Variant 79

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIET1S
Calibration: 0044CC0IHF0SIET1S

Variant 80

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SICE7S
Calibration: 0044CC0IHF0SICE7S

Variant 81

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SICE1S
Calibration: 0044CC0IHF0SICE1S

Variant 82

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: A507250
Calibration: A507250

Variant 83

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: CG60658
Calibration: CG60658

Variant 84

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: A859496
Calibration: A859496

Variant 85

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: A169869
Calibration: A169869

Variant 86

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: CT22934
Calibration: CT22934

Variant 87

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: B708733
Calibration: B708733

Variant 88

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: A600489
Calibration: A600489

Variant 89

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: A489168
Calibration: A489168

Variant 90

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: CW47856
Calibration: CW47856

Variant 91

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: CW47714
Calibration: CW47714

Variant 92

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: P319425
Calibration: P319425

Variant 93

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: 0044CC0IHF0SICQ9S
Calibration: 0044CC0IHF0SICQ9S

Variant 94

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: E425538
Calibration: E425538

Variant 95

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: PV98126
Calibration: PV98126

Variant 96

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SINA6S
Calibration: 0044CC0IHF0SINA6S

Variant 97

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
Calibration: 0044CC0IHF0SICC3S

Variant 98

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SINC6S
Calibration: 0044CC0IHF0SINC6S

Variant 99

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIFZ3S
Calibration: 0044CC0IHF0SIFZ3S

Variant 100

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: CW58548
Calibration: CW58548

Variant 101

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: P187042
Calibration: P187042

Variant 102

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: PV98681
Calibration: PV98681

Variant 103

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIKL1S
Calibration: 0044CC0IHF0SIKL1S

Variant 104

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: 0044CC0IHF0SINA6S
Calibration: 0044CC0IHF0SINA6S

Variant 105

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIKP3S
Calibration: 0044CC0IHF0SIKP3S

Variant 106

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: BL10280
Calibration: BL10280

Variant 107

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: E514011
Calibration: E514011

Variant 108

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIKP4S
Calibration: 0044CC0IHF0SIKP4S

Variant 109

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIFZ9S
Calibration: 0044CC0IHF0SIFZ9S

Variant 110

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: NM64621
Calibration: NM64621

Variant 111

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: A375502
Calibration: A375502

Variant 112

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIKP5S
Calibration: 0044CC0IHF0SIKP5S

Variant 113

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIKS3S
Calibration: 0044CC0IHF0SIKS3S

Variant 114

ECU

Catalog engine: 325i 218HP
Engine code: N52B25O1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU SW: 07612455
ECU HW: 5WK93724
SW upgrade: NM64568
Calibration: NM64568

Variant 115

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: A376381
Calibration: A376381

Variant 116

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SICF7S
Calibration: 0044CC0IHF0SICF7S

Variant 117

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: A466315
Calibration: A466315

Variant 118

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHF0SIKJ3S
Calibration: 0044CC0IHF0SIKJ3S

Variant 119

ECU

Catalog engine: 325i 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: C239072
Calibration: C239072

Variant 120

ECU

Catalog engine: 3000 218HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
SW upgrade: 0044CC0IHD0SIKJ1S
Calibration: 0044CC0IHD0SIKJ1S

Variant 121

ECU

Catalog engine: 3000 218HP
Engine code: N53B30
Controller brand: SIEMENS
ECU: MSD81
Stock power: 218 HP
ECU HW: 6577475135
SW upgrade: 0044CC0IHD0SIGY1S
Calibration: 0044CC0IHD0SIGY1S

Variant 122

ECU

Catalog engine: 2000 184HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 184 HP

Variant 123

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: E177820
Calibration: E177820

Variant 124

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: VJ19433
Calibration: VJ19433

Variant 125

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QGF0SQAO6S
Calibration: 0044RD0QGF0SQAO6S

Variant 126

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QGF0SQAM1S
Calibration: 0044RD0QGF0SQAM1S

Variant 127

ECU

Catalog engine: 2000 170HP
Engine code: N43B20O0
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 6577475262
ECU HW: 6577475204
SW upgrade: E058522
Calibration: E058522

Variant 128

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)

Variant 129

ECU

Catalog engine: 2000 170HP
Engine code: N43B20O0
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU HW: 6577475202
SW upgrade: 0044RD0QGF0SQFA6S
Calibration: 0044RD0QGF0SQFA6S

Variant 130

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QHC0SQCR2S
Calibration: 0044RD0QHC0SQCR2S

Variant 131

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 05324036
ECU HW: 05201419
SW upgrade: 0044RD0QF70SQBQ5S
Calibration: 0044RD0QF70SQBQ5S

Variant 132

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: J014884
Calibration: J014884

Variant 133

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: A090138
Calibration: A090138

Variant 134

ECU

Catalog engine: 2000 170HP
Engine code: N43B20O0
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 6577475262
ECU HW: 6577475204
SW upgrade: E186648
Calibration: E186648

Variant 135

ECU

Catalog engine: 2000 170HP
Engine code: N43B20O0
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 6577475262
ECU HW: 6577475204
SW upgrade: JT93357
Calibration: JT93357

Variant 136

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QF70SQAO5S
Calibration: 0044RD0QF70SQAO5S

Variant 137

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 05324036
ECU HW: 05201419
SW upgrade: 0044RD0QF70SQAR5S
Calibration: 0044RD0QF70SQAR5S

Variant 138

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 6577475202
ECU HW: 0901303370
SW upgrade: P233204
Calibration: P233204

Variant 139

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QGF0SQAN1S
Calibration: 0044RD0QGF0SQAN1S

Variant 140

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QGF0SQAQ1S
Calibration: 0044RD0QGF0SQAQ1S

Variant 141

ECU

Catalog engine: 2000 170HP
Engine code: N43B20M1
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
ECU SW: 6252119583
ECU HW: 6577475204
SW upgrade: 0044RD0QIB0SQBQ4S
Calibration: 0044RD0QIB0SQBQ4S

Variant 142

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: PX03397
Calibration: PX03397

Variant 143

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QGF0SQAR6S
Calibration: 0044RD0QGF0SQAR6S

Variant 144

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: 0044RD0QGF0SQBQ1S
Calibration: 0044RD0QGF0SQBQ1S

Variant 145

ECU

Catalog engine: 2000 170HP
Generation: F3x 12/2011-2015
Matched gains engine: 320i EDE 170
Controller brand: SIEMENS
ECU: MSD81
Stock power: 170 HP
Stage 1 power: 220 HP
Power increase: +50 HP (+29%)
Stock torque: 250 Nm
Stage 1 torque: 310 Nm
Torque increase: +60 Nm (+24%)
SW upgrade: PX05640
Calibration: PX05640

Variant 146

ECU

Catalog engine: 2200 163HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 163 HP
ECU HW: 07602912
SW upgrade: J003150
Calibration: J003150

Variant 147

ECU

Catalog engine: 118i 2000 143HP
Engine code: N43B20M1
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
ECU SW: 05324036
ECU HW: 05201419
SW upgrade: 0044RD0QF70SQBO5S
Calibration: 0044RD0QF70SQBO5S

Variant 148

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP

Variant 149

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
SW upgrade: A363322
Calibration: A363322

Variant 150

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
SW upgrade: 0044RD0QHA0SQCMBS
Calibration: 0044RD0QHA0SQCMBS

Variant 151

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
SW upgrade: 0044RD0QHA0SQDY7S
Calibration: 0044RD0QHA0SQDY7S

Variant 152

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
SW upgrade: A399684
Calibration: A399684

Variant 153

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
SW upgrade: A422203
Calibration: A422203

Variant 154

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
ECU SW: 05324036
ECU HW: 05190623
SW upgrade: 0044RD0QF70SQAQ5S
Calibration: 0044RD0QF70SQAQ5S

Variant 155

ECU

Catalog engine: 2000 143HP
Controller brand: SIEMENS
ECU: MSD81
Stock power: 143 HP
SW upgrade: 0044RD0QHA0SQCN3S
Calibration: 0044RD0QHA0SQCN3S

Variant 156

ECU

Catalog engine: 1600 122HP
Generation: E9x 2005-2010
Matched gains engine: 318d 122
Controller brand: SIEMENS
ECU: MSD81
Stock power: 122 HP
Stage 1 power: 150 HP
Power increase: +28 HP (+23%)
Stock torque: 280 Nm
Stage 1 torque: 340 Nm
Torque increase: +60 Nm (+21%)
SW upgrade: 0044RD0QGF0SQBQ6S
Calibration: 0044RD0QGF0SQBQ6S

Related vehicles

Other vehicles built on the MSD81 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the BMW 3 SERIES on the MSD81?

Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.

Do you cover the MSD81 ECU software on this model?

Yes — the BMW 3 SERIES on the MSD81 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.

How is the file delivered?

Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.