From 340 hp to about 400 hp: the BMW 3 serie 335i Active Hybrid 340hp (F3x – 2011 – 2015) becomes noticeably stronger and more responsive with Stage 1 software. Torque climbs from 400 Nm to about 520 Nm.

This is a petrol engine with a displacement of 2,979 cc and engine code N55B30. The engine is controlled by the Bosch MED17.2.6, the gearbox by the ZF 8HP. The software file can be written with tools such as Alientech KESS3, Autotuner, DFB Technology DFOX and MagicMotorsport Flex.

Frequently asked questions

How much power and torque does a BMW 3 serie 335i Active Hybrid 340hp gain with Stage 1?

About 60 hp and 120 Nm: from 340 hp / 400 Nm to roughly 400 hp / 520 Nm. The exact gain depends on engine condition and fuel quality.

Which ECU does a BMW 3 serie 335i Active Hybrid 340hp use?

Bosch MED17.2.6 (engine); ZF 8HP (gearbox).

Which tools can read a BMW 3 serie 335i Active Hybrid 340hp?

Alientech KESS3, Autotuner, DFB Technology DFOX and MagicMotorsport Flex.

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