BMW · MG1CS003 ECU · petrol

BMW 7 SERIES MG1CS003 tuning files

Everything we work with on the BMW 7 SERIES fitted with the MG1CS003. The matched variants sit between 326 and 610 HP from the factory. 11 distinct variants are catalogued here. 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 7 SERIES coverage

Available solutions

Applicable work for the MG1CS003 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

11 distinct variants for the BMW 7 SERIES on the MG1CS003 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 6600 610HP
Engine code: N74B66U1
Generation: G11/G12 2016-2019
Matched gains engine: 760i 610
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 610 HP
Stage 1 power: 680 HP
Power increase: +70 HP (+11%)
Stock torque: 800 Nm
Stage 1 torque: 920 Nm
Torque increase: +120 Nm (+15%)
ECU SW: FFFFFFFFFFFFFF
ECU HW: 7F8590A1B0B8B9
SW upgrade: FFFFFFFFFFFFFF
Calibration: 7F8590A1B0B8B9_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Variant 2

ECU

Catalog engine: 6600 610HP
Generation: G11/G12 2016-2019
Matched gains engine: 760i 610
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 610 HP
Stage 1 power: 680 HP
Power increase: +70 HP (+11%)
Stock torque: 800 Nm
Stage 1 torque: 920 Nm
Torque increase: +120 Nm (+15%)
ECU SW: FFFFFFFFFFFFFF
ECU HW: FF8F9ACCFFFFFF
SW upgrade: FFFFFFFFFFFFFF
Calibration: FF8F9ACCFFFFFF_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Variant 3

ECU

Catalog engine: 6600 610HP
Generation: G11/G12 2016-2019
Matched gains engine: 760i 610
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 610 HP
Stage 1 power: 680 HP
Power increase: +70 HP (+11%)
Stock torque: 800 Nm
Stage 1 torque: 920 Nm
Torque increase: +120 Nm (+15%)
ECU SW: FFFFFFFFFFFFFF
ECU HW: 80808080008080
SW upgrade: FFFFFFFFFFFFFF
Calibration: 80808080008080_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Variant 4

ECU

Catalog engine: 6000 570HP
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 570 HP
ECU SW: FFFFFFFFFFFFFF
ECU HW: 00010203040506
SW upgrade: FFFFFFFFFFFFFF
Calibration: 00010203040506_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Variant 5

ECU

Catalog engine: 6000 570HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 570 HP
ECU SW: 000030815A0A03
ECU HW: 00003084000120
SW upgrade: 000049265A0A0E
Calibration: 00003084000120_000030815A0A03_000049265A0A0E

Variant 6

ECU

Catalog engine: 3000 326HP
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 326 HP
ECU SW: FFFFFFFFFFFFFF
ECU HW: 23273100002020
SW upgrade: FFFFFFFFFFFFFF
Calibration: 23273100002020_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Variant 7

ECU

Catalog engine: 3000 326HP
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 326 HP

Variant 8

ECU

Catalog engine: 3000 326HP
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 326 HP
ECU SW: FFFFFFFFFFFFFF
ECU HW: 20202000002020
SW upgrade: FFFFFFFFFFFFFF
Calibration: 20202000002020_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Variant 9

ECU

Catalog engine: 3000 326HP
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 326 HP
ECU SW: 00000000000000
ECU HW: 00000306090C0F
SW upgrade: 00000000000000
Calibration: 00000306090C0F_00000000000000_00000000000000

Variant 10

ECU

Catalog engine: 3000 326HP
Engine code: B58B30M0
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 326 HP
ECU SW: 00000000000000
ECU HW: 9AB2B2B2B2B9B0
SW upgrade: 00000000000000
Calibration: 9AB2B2B2B2B9B0_00000000000000_00000000000000

Variant 11

ECU

Catalog engine: 3000 326HP
Controller brand: BOSCH
ECU: MG1CS003
Stock power: 326 HP
ECU SW: FFFFFFFFFFFFFF
ECU HW: 9AB2B2B2B2B9B0
SW upgrade: FFFFFFFFFFFFFF
Calibration: 9AB2B2B2B2B9B0_FFFFFFFFFFFFFF_FFFFFFFFFFFFFF

Related vehicles

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

Questions, answered.

Which tuning solutions are available for the BMW 7 SERIES on the MG1CS003?

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 ECU software on this model?

Yes — the BMW 7 SERIES on the MG1CS003 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.