BMW · MSD85 ECU · petrol

BMW X SERIES MSD85 tuning files

The BMW X SERIES on the MSD85, mapped from stock file to finished result. The matched variants sit between 306 and 555 HP from the factory. 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 X SERIES coverage

Available solutions

Solutions that apply to the MSD85 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

19 distinct variants for the BMW X SERIES on the MSD85 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
Calibration: 0049ZC0I900SSF7X4

Variant 2

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP

Variant 3

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
ECU SW: 6579075111
ECU HW: 6579075258
Calibration: 0049ZC0I750SSF7X3

Variant 4

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
ECU SW: 6579075109
ECU HW: 6579075257
Calibration: 0049ZC0I620SSF7X1

Variant 5

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
Calibration: 0049ZC0I900SSM7X4

Variant 6

ECU

Catalog engine: 4400 555HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
ECU SW: 6579075258
ECU HW: 6579075204
Calibration: 0049ZC0I900SSO7X4

Variant 7

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
Calibration: 0049ZC0I900SSO7X4

Variant 8

ECU

Catalog engine: 4400 555HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 555 HP
ECU SW: 6579075107
ECU HW: 6579075255
Calibration: 0049ZC0I460SSG7X4

Variant 9

ECU

Catalog engine: 4400 408HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP

Variant 10

ECU

Catalog engine: 4400 408HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
Calibration: 0049ZC0I860SSM7X0

Variant 11

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
ECU SW: 08614998
ECU HW: 07644029
Calibration: 0047620ID01S0W9X6

Variant 12

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
ECU SW: 6579075114
ECU HW: 6579075258
Calibration: 0049ZC0I860SSF7X0

Variant 13

ECU

Catalog engine: 4400 408HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
Calibration: 0047620ID01S0W9X6

Variant 14

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
ECU SW: 6579025111
ECU HW: 6579025254
Calibration: 0047620I960S0U9X0

Variant 15

ECU

Catalog engine: 4400 408HP
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
Calibration: 0047620I950S0W9X0

Variant 16

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
ECU SW: 07841682

Variant 17

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85
Stock power: 408 HP
ECU SW: 6579025112
ECU HW: 6579025255
Calibration: 0047620IB20S0W9X5

Variant 18

ECU

Catalog engine: 4400 407HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85
Stock power: 407 HP
ECU SW: 08615018
ECU HW: 07649411
Calibration: 0047620IH00S0UTX3

Variant 19

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD85
Stock power: 306 HP
ECU SW: 6579065110
ECU HW: 6579065252
Calibration: 0049SQ0I610S0VJX7

Related vehicles

Other vehicles built on the MSD85 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the BMW X SERIES on the MSD85?

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 MSD85 ECU software on this model?

Yes — the BMW X SERIES on the MSD85 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.