A BMW 5 serie 520d 197hp (2023 -> …) makes about 225 hp and 480 Nm with Stage 1 software, compared with 197 hp and 400 Nm from the factory. That is 28 hp and 80 Nm extra.

This is a mild-hybrid diesel engine with a displacement of 1,995 cc. The engine is controlled by the Bosch MD1CS115.

Frequently asked questions

How much power and torque does a BMW 5 serie 520d 197hp gain with Stage 1?

About 28 hp and 80 Nm: from 197 hp / 400 Nm to roughly 225 hp / 480 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a BMW 5 serie 520d 197hp use?

Bosch MD1CS115.

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