BMW · MSD85.3 ECU · petrol

BMW X SERIES MSD85.3 tuning files

Everything we work with on the BMW X SERIES fitted with the MSD85.3. Across the matched variants stock power runs from 306 to 555 HP. 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 X SERIES coverage

Available solutions

Applicable work for the MSD85.3 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

34 distinct variants for the BMW X SERIES on the MSD85.3 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP

Variant 2

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: 0049ZC0I620SSJ7X3
Calibration: 0049ZC0I620SSJ7X3

Variant 3

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: 0049ZC0I460SSJ7X4
Calibration: 0049ZC0I460SSJ7X4

Variant 4

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: LK25280
Calibration: LK25280

Variant 5

ECU

Catalog engine: 4400 555HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579075109
ECU HW: 6579075257
SW upgrade: 0049ZC0I620SSM7X1
Calibration: 0049ZC0I620SSM7X1

Variant 6

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579075109
ECU HW: 6579075257
SW upgrade: LM11438
Calibration: LM11438

Variant 7

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: 0049ZC0I620SSO7X3
Calibration: 0049ZC0I620SSO7X3

Variant 8

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: LJ54413
Calibration: LJ54413

Variant 9

ECU

Catalog engine: 4400 555HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579075115
ECU HW: 6579075258
SW upgrade: LY62568
Calibration: LY62568

Variant 10

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: LK25497
Calibration: LK25497

Variant 11

ECU

Catalog engine: 4400 555HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579075255
ECU HW: 6579075204
SW upgrade: LK11056
Calibration: LK11056

Variant 12

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 08615440
ECU HW: 08603842
SW upgrade: 0049ZC0I900SSJ7X4
Calibration: 0049ZC0I900SSJ7X4

Variant 13

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: LJ54376
Calibration: LJ54376

Variant 14

ECU

Catalog engine: 4400 555HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579025125
ECU HW: 6579025259
SW upgrade: LL67624
Calibration: LL67624

Variant 15

ECU

Catalog engine: 4400 555HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579075107
ECU HW: 6579075255
SW upgrade: LK10190
Calibration: LK10190

Variant 16

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: 0049ZC0I750SSF7X3
Calibration: 0049ZC0I750SSF7X3

Variant 17

ECU

Catalog engine: 4400 555HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: 0049ZC0I750SSM7X3
Calibration: 0049ZC0I750SSM7X3

Variant 18

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
ECU SW: 6579075111
ECU HW: 6579075258
SW upgrade: 0049ZC0I750SSO7X3
Calibration: 0049ZC0I750SSO7X3

Variant 19

ECU

Catalog engine: 4400 555HP
Engine code: S63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 555 HP
SW upgrade: LY62027
Calibration: LY62027

Variant 20

ECU

Catalog engine: 4400 408HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
SW upgrade: L284920
Calibration: L284920

Variant 21

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
ECU SW: 6579075114
ECU HW: 6579075258
SW upgrade: LJ88619
Calibration: LJ88619

Variant 22

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
ECU SW: 08614998
ECU HW: 07644029
SW upgrade: L281431
Calibration: L281431

Variant 23

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
SW upgrade: L285504
Calibration: L285504

Variant 24

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
ECU SW: 07648220
ECU HW: 6579025207
SW upgrade: L288364
Calibration: L288364

Variant 25

ECU

Catalog engine: 4400 408HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
SW upgrade: L393334
Calibration: L393334

Variant 26

ECU

Catalog engine: 4400 408HP
Engine code: N63B44
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 408 HP
ECU SW: 6579075114
ECU HW: 6579075258
SW upgrade: LM12454
Calibration: LM12454

Variant 27

ECU

Catalog engine: 4400 407HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 407 HP
ECU SW: 08615018
ECU HW: 07649411
SW upgrade: L425224
Calibration: L425224

Variant 28

ECU

Catalog engine: 4400 407HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 407 HP
SW upgrade: L285884
Calibration: L285884

Variant 29

ECU

Catalog engine: 4400 407HP
Engine code: S63B44A
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 407 HP
ECU SW: 08615018
ECU HW: 07649411
SW upgrade: LL67624
Calibration: LL67624

Variant 30

ECU

Catalog engine: 4400 407HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 407 HP
SW upgrade: L590081
Calibration: L590081

Variant 31

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 306 HP
SW upgrade: LK42744
Calibration: LK42744

Variant 32

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 306 HP
ECU SW: 6579065110
ECU HW: 6579065252
SW upgrade: LK42581
Calibration: LK42581

Variant 33

ECU

Catalog engine: 3000 306HP
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 306 HP
SW upgrade: LK42256
Calibration: LK42256

Variant 34

ECU

Catalog engine: 3000 306HP
Engine code: N54B30
Controller brand: SIEMENS
ECU: MSD85.3
Stock power: 306 HP
ECU SW: 6579075107
ECU HW: 6579075255
SW upgrade: 0049ZC0I460SSM7X2
Calibration: 0049ZC0I460SSM7X2

Related vehicles

Other vehicles built on the MSD85.3 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 MSD85.3?

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 MSD85.3 ECU software on this model?

Yes — the BMW X SERIES on the MSD85.3 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.