Bmw M Ignite, technology arrives for less fuel consumption without performance loss in Euro 7
The brand's M division has announced technology that reduces the fuel consumption of inline 6-cylinder engines starting with the M2, M3 and M4 without altering their power output. A solution that will enable its highest performance models to comply with Euro 7 regulations.
BMW has unveiled M Ignite, a new technology that will debut on all straight-six versions of M, the group's high-performance division, starting with the M3 and M4 that will be upgraded from July and the M2 that will follow a month later. This is a pre-chamber ignition system developed to improve the efficiency of the sportier petrol engines. The aim is to reduce fuel consumption without altering the power or displacement of current engines. The solution will enable the M division to continue offering high-performance engines while complying with the Euro 7 regulations in force from November 2026.
How the technology introduced on the M works
The basic concept of M Ignite technology is a small pre-chamber inserted in the engine head and connected to the main combustion chamber via specific passages. The system then uses a second dedicated spark plug, creating a double ignition. The cylinder head of M Ignite engines has a small pre-chamber that acts as a secondary combustion chamber. At low and medium loads, the engine behaves normally. If, on the other hand, revs and loads increase, the air-fuel mixture is channelled into it and ignited separately. As a result, combustion is faster and more efficient.
