Launched in mid-2024, the fourth-generation BMW 1 Series F70 fundamentally revitalised the compact range with a striking redesigned front fascia, standard LED headlights, and the BMW Curved Display running Operating System 9. Notably, BMW dropped the historic "i" suffix for petrol models, designating variants as 120 and M135. Operating under official manufacturer warranty, routine BMW 1 Series maintenance must adhere strictly to BMW service intervals to safeguard warranty coverage.
Under the bonnet, the petrol 120 and diesel models integrate 48V mild-hybrid technology, incorporating an electric motor directly into the seven-speed dual-clutch Steptronic gearbox to smooth start-stop cycles and provide torque assistance. The flagship M135 xDrive packs 300 hp, mechanical front differential lock, and adaptive M suspension for maximum grip.
With physical buttons eliminated in favor of touch and voice control via BMW OS9, software stability is paramount. Routine maintenance focuses on software over-the-air updates, 48V electrical diagnostics, and front axle alignment on large 18- and 19-inch wheel configurations.