BMW · MS43 ECU · petrol

BMW X5 MS43 tuning files

Everything we work with on the BMW X5 fitted with the MS43. The matched variants sit between 235 and 235 HP from the factory. Petrol calibration here is about crisp response and a result that holds up day to day. Your file is built against the exact ECU software on the car, then operator-verified.

Available solutions

Applicable work for the MS43 on this petrol. The available set firms up once the exact engine and software are known.

Engine variants & ECU software

1 distinct variant for the BMW X5 on the MS43 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
3000 235HP
Generation
E70 2007-2010
Matched gains engine
3.0d 235
Controller brand
SIEMENS
ECU
MS43
Stock power
235 HP
Stage 1 power
280 HP
Power increase
+45 HP (+19%)
Stock torque
520 Nm
Stage 1 torque
600 Nm
Torque increase
+80 Nm (+15%)
SW upgrade
C256450H
Calibration
C256450H

Related vehicles

Other vehicles built on the MS43 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the BMW X5 on the MS43?

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 MS43 ECU software on this model?

Yes — the BMW X5 on the MS43 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.

BMW X5 MS43 ECU Tuning Files | TuningBay