BMW · MG1CS003 DME_861 ECU · petrol

BMW 3 SERIES MG1CS003 DME_861 tuning files

Tuning file coverage for the BMW 3 SERIES running the MG1CS003 DME_861 ECU. Across the matched variants stock power runs from 184 to 340 HP. There are 30 distinct variants on file for this combination. On this petrol engine the focus is sharper throttle and useful, repeatable gains. Your file is built against the exact ECU software on the car, then operator-verified.

Upload your file →All 3 SERIES coverage

Available solutions

Solutions that apply to the MG1CS003 DME_861 on this petrol platform. The exact set depends on the specific engine and software version.

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

Engine variants & ECU software

30 distinct variants for the BMW 3 SERIES on the MG1CS003 DME_861 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030765A3C06
ECU HW: 00003075000A22
SW upgrade: 0000712A5A3C05
Calibration: 00003075000A22_000030765A3C06_0000712A5A3C05

Variant 2

ECU

Catalog engine: 3000 340HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 00000000000000
ECU HW: 00000000000000
SW upgrade: 0000366D501104
Calibration: 00000000000000_00000000000000_0000366D501104

Variant 3

ECU

Catalog engine: 3000 340HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 00003076501102
ECU HW: 00003075000120
SW upgrade: 0000366F501101
Calibration: 0000366F501101

Variant 4

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030765A1405
ECU HW: 00003075000120
SW upgrade: 000071085A1437
Calibration: 00003075000120_000030765A1405_000071085A1437

Variant 5

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030765A1407
ECU HW: 00003075000120
SW upgrade: 000071275A1438
Calibration: 00003075000120_000030765A1407_000071275A1438

Variant 6

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030760A1101
ECU HW: 0000307500011C
SW upgrade: 0000347C0A1107
Calibration: 0000307500011C_000030760A1101_0000347C0A1107

Variant 7

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030765A1403
ECU HW: 00003075000120
SW upgrade: 000071085A1405
Calibration: 00003075000120_000030765A1403_000071085A1405

Variant 8

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030760A1002
ECU HW: 0000307500011C
SW upgrade: 000034800A1005
Calibration: 0000307500011C_000030760A1002_000034800A1005

Variant 9

ECU

Catalog engine: 3000 340HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030760A1002
ECU HW: 0000307500011C
SW upgrade: 00003EF50A1005
Calibration: 0000307500011C_000030760A1002_00003EF50A1005

Variant 10

ECU

Catalog engine: 3000 340HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030760A1101
ECU HW: 0000307500011C
SW upgrade: 000034800A1107
Calibration: 0000307500011C_000030760A1101_000034800A1107

Variant 11

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030765A3205
ECU HW: 00003075000A22
SW upgrade: 0000711A5A3206
Calibration: 00003075000A22_000030765A3205_0000711A5A3206

Variant 12

ECU

Catalog engine: 3000 340HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 340 HP
ECU SW: 000030760A1101
ECU HW: 0000307500011C
SW upgrade: 00003C9A0A1107
Calibration: 0000307500011C_000030760A1101_00003C9A0A1107

Variant 13

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A3C06
ECU HW: 00003075000A22
SW upgrade: 000071185A3C05
Calibration: 00003075000A22_000030765A3C06_000071185A3C05

Variant 14

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 00003076460902
ECU HW: 00003075000120
SW upgrade: 0000347E460907
Calibration: 00003075000120_00003076460902_0000347E460907

Variant 15

ECU

Catalog engine: 2000 184HP
Engine code: B48B20A
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 00003076320503
ECU HW: 00003075000120
SW upgrade: 000043BC320506
Calibration: 00003075000120_00003076320503_000043BC320506

Variant 16

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 00003076501D02
ECU HW: 00003075000120
SW upgrade: 000051EE501DD2
Calibration: 00003075000120_00003076501D02_000051EE501DD2

Variant 17

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A1405
ECU HW: 00003075000120
SW upgrade: 000071085A1435
Calibration: 00003075000120_000030765A1405_000071085A1435

Variant 18

ECU

Catalog engine: 2000 184HP
Engine code: B48B20A
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
Calibration: R1C9J772BCGEX6

Variant 19

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A5005
ECU HW: 00003075000A22
SW upgrade: 0000711E5A5001
Calibration: 00003075000A22_000030765A5005_0000711E5A5001

Variant 20

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 00003076320503
ECU HW: 00003075000120
SW upgrade: 0000455A320506
Calibration: 00003075000120_00003076320503_0000455A320506

Variant 21

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 00003076501D02
ECU HW: 00003075000120
SW upgrade: 00007127501DD0
Calibration: 00003075000120_00003076501D02_00007127501DD0

Variant 22

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A5005
ECU HW: 00003075000A22
SW upgrade: 000071525A5002
Calibration: 00003075000A22_000030765A5005_000071525A5002

Variant 23

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A5005
ECU HW: 00003075000A22
SW upgrade: 000071185A5001
Calibration: 00003075000A22_000030765A5005_000071185A5001

Variant 24

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A3C06
ECU HW: 00003075000A22
SW upgrade: 0000710C5A3C05
Calibration: 00003075000A22_000030765A3C06_0000710C5A3C05

Variant 25

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A3C06
ECU HW: 00003075000A22
SW upgrade: 000071185A3C06
Calibration: 00003075000A22_000030765A3C06_000071185A3C06

Variant 26

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 00003076460902
ECU HW: 00003075000120
SW upgrade: 00003675460907
Calibration: 00003075000120_00003076460902_00003675460907

Variant 27

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A3C06
ECU HW: 00003075000A22
SW upgrade: 0000712A5A3C06
Calibration: 00003075000A22_000030765A3C06_0000712A5A3C06

Variant 28

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A3C06
ECU HW: 00003075000A22
SW upgrade: 0000710C5A3C06
Calibration: 00003075000A22_000030765A3C06_0000710C5A3C06

Variant 29

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A5005
ECU HW: 00003075000A22
SW upgrade: 0000712A5A5001
Calibration: 00003075000A22_000030765A5005_0000712A5A5001

Variant 30

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_861
Stock power: 184 HP
ECU SW: 000030765A1407
ECU HW: 00003075000120
SW upgrade: 000071085A1438
Calibration: 00003075000120_000030765A1407_000071085A1438

Related vehicles

Other vehicles built on the MG1CS003 DME_861 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 MG1CS003 DME_861?

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 MG1CS003 DME_861 ECU software on this model?

Yes — the BMW 3 SERIES on the MG1CS003 DME_861 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.