The Mercedes-Benz M 252 LS engine features F1-inspired electric turbo technology alongside new high-voltage battery cell developments.
Mercedes-Benz has enhanced its existing M 252 petrol engine in the GLB 250 for improved performance and efficiency. The new M 252 LS produces 170 kW, plus an additional 23 kW via an MHEV (mild-hybrid electric vehicle) system. The unit introduces an electric exhaust gas turbocharger powered by a 48 V system inspired by Formula 1-inspired technology. Mercedes-Benz claims the setup delivers immediate throttle response across the entire rev range.
The M 252 LS offers improved performance, while fuel consumption is significantly decreased. The German brand’s updated engine reduces the GLB 250’s claimed 0-100 km/h acceleration time by 0.1 seconds, to 6.8 seconds. Carbon emissions drop by approximately 17% compared to the previous design. The electric gas turbocharger recovers exhaust energy to charge the onboard battery. Dual Lanchester balance shafts diminish engine vibrations for refined operation.
Advanced battery cell chemistry development
Battery technology remains central to Mercedes-Benz’s electric mobility strategy. The company has designed specialised cell chemistries for distinct vehicle segments in its EQ catalogue. The Stuttgart marque’s engineers combine lithium manganese oxide with nickel manganese cobalt oxide. This blend reduces reliance on costly cobalt and nickel. The combination balances high energy density with manufacturing cost efficiency.
The firm also advances cobalt-free lithium nickel manganese oxide cell formulations. High-voltage capability allows operation up to five volts. This innovation offers up to 30% more range than lithium-ion phosphate cells. Compact battery designs create additional space for interior vehicle layouts. In-house development allows flexible responses to evolving market regulations.
Breakthroughs in solid-state battery technology
Mercedes-Benz advances solid-state battery testing alongside key strategic partners. A modified EQS equipped with Factorial lithium-metal technology completed a test drive covering 1 205 km from Stuttgart to Malmo on a single charge. This test proved the extended range capability of solid-state systems. The carmaker’s collaboration with ProLogium focuses on testing fourth-generation solid-state cell architecture. Safety evaluation and thermal management remain top priorities during engineering trials. Motorsport expertise from British Formula 1 teams accelerates internal research efforts.
