A BMW 5 serie 540i 4.4 V8 286hp (E39 – 1995 – 2003) makes about 300 hp and 460 Nm with Stage 1 software, compared with 286 hp and 440 Nm from the factory. That is 14 hp and 20 Nm extra.

This is a petrol engine with a displacement of 4,398 cc and engine code 448S2. The engine is controlled by the Bosch M5.2 and Bosch ME7.2. The software file can be written with tools such as Alientech K-TAG, Alientech KESS3, Alientech KESSv2, CMD CMDFlash and Dimsport New Genius.

Besides Stage 1, the following options are available for this vehicle: DECAT, FLAPS and Vmax.

Frequently asked questions

How much power and torque does a BMW 5 serie 540i 4.4 V8 286hp gain with Stage 1?

About 14 hp and 20 Nm: from 286 hp / 440 Nm to roughly 300 hp / 460 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a BMW 5 serie 540i 4.4 V8 286hp use?

Bosch M5.2 and Bosch ME7.2.

Which tools can read a BMW 5 serie 540i 4.4 V8 286hp?

Alientech K-TAG, Alientech KESS3, Alientech KESSv2, CMD CMDFlash and Dimsport New Genius.

Which extra options are available for a BMW 5 serie 540i 4.4 V8 286hp?

DECAT, FLAPS and Vmax.

Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.