BMW · MG1CS003 DME_840 ECU · petrol

BMW 5 SERIES MG1CS003 DME_840 tuning files

BMW 5 SERIES on the MG1CS003 DME_840: matched, calibrated and delivered with care. The matched variants sit between 184 and 252 HP from the factory. 17 distinct variants are catalogued here. It is a petrol platform, tuned for response and clean power delivery. We match the right calibration to your exact software and validate it before delivery.

Upload your file →All 5 SERIES coverage

Available solutions

Applicable work for the MG1CS003 DME_840 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

17 distinct variants for the BMW 5 SERIES on the MG1CS003 DME_840 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 2000 252HP
Engine code: B48B20A
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081460B02
ECU HW: 00003080000120
SW upgrade: 0000409A460B03
Calibration: 00003080000120_00003081460B02_0000409A460B03

Variant 2

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 0000492A320507
Calibration: 00003080000120_00003081320503_0000492A320507

Variant 3

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081460D02
ECU HW: 00003080000120
SW upgrade: 000043EC460D04
Calibration: 00003080000120_00003081460D02_000043EC460D04

Variant 4

ECU

Catalog engine: 2000 252HP
Engine code: B48HB20M0
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 000043F4320508
Calibration: 00003080000120_00003081320503_000043F4320508

Variant 5

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 00003436320508
Calibration: 00003080000120_00003081320503_00003436320508

Variant 6

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 00003430320508
Calibration: 00003080000120_00003081320503_00003430320508

Variant 7

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 000043F2320508
Calibration: 00003080000120_00003081320503_000043F2320508

Variant 8

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081460D02
ECU HW: 00003080000120
SW upgrade: 00004928460D02
Calibration: 00003080000120_00003081460D02_00004928460D02

Variant 9

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 000043F0320508
Calibration: 00003080000120_00003081320503_000043F0320508

Variant 10

ECU

Catalog engine: 2000 252HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 252 HP
ECU SW: 00003081320503
ECU HW: 00003080000120
SW upgrade: 00004928320508
Calibration: 00003080000120_00003081320503_00004928320508

Variant 11

ECU

Catalog engine: 2000 250HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 250 HP
ECU SW: 00003081460504
ECU HW: 00003080000120
SW upgrade: 000034B646050A
Calibration: 00003080000120_00003081460504_000034B646050A

Variant 12

ECU

Catalog engine: 2000 250HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 250 HP
ECU SW: 00003081460504
ECU HW: 00003080000120
SW upgrade: 0000343046050A
Calibration: 00003080000120_00003081460504_0000343046050A

Variant 13

ECU

Catalog engine: 2000 250HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 250 HP
ECU SW: 00003081460504
ECU HW: 00003080000120
SW upgrade: 000034BA46050C
Calibration: 00003080000120_00003081460504_000034BA46050C

Variant 14

ECU

Catalog engine: 2000 250HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 250 HP
ECU SW: 00003081460504
ECU HW: 00003080000120
SW upgrade: 0000492A46050C
Calibration: 00003080000120_00003081460504_0000492A46050C

Variant 15

ECU

Catalog engine: 2000 250HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 250 HP
ECU SW: 00003081460504
ECU HW: 00003080000120
SW upgrade: 0000343046050C
Calibration: 00003080000120_00003081460504_0000343046050C

Variant 16

ECU

Catalog engine: 2000 250HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 250 HP
ECU SW: 00003081460504
ECU HW: 00003080000120
SW upgrade: 000043F446050C
Calibration: 00003080000120_00003081460504_000043F446050C

Variant 17

ECU

Catalog engine: 2000 184HP
Controller brand: BOSCH
ECU: MG1CS003 DME_840
Stock power: 184 HP

Related vehicles

Other vehicles built on the MG1CS003 DME_840 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the BMW 5 SERIES on the MG1CS003 DME_840?

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_840 ECU software on this model?

Yes — the BMW 5 SERIES on the MG1CS003 DME_840 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.