Mercedes-Benz is pulling down the CO₂ footprint of its new electric models by switching to low-CO₂ aluminum smelted with hydropower in body and structural parts, some of which is made from high-grade scrap, a move the brand developed in close cooperation with Norsk Hydro and which debuts immediately on the all-electric CLA. According to both companies, that choice of materials produces about 40 percent fewer emissions across the board than on the non-electric predecessor model, making the manufacturer's route to climate neutrality tangible in product and production rather than in promises.
The core of that reduction is in the source and process. Hydro smelts in Årdal on Norway's west coast with almost entirely renewable energy and documents an intensity of around three kilograms of CO₂ per kilogram of aluminum, where the world average is still more than five times higher. Adding about a quarter of post-consumer scrap further lowers embedded emissions and maintains mechanical quality for crash-critical parts, exactly where premium brands cannot compromise.
That cleaner metal is more expensive, both Hydro and Mercedes acknowledge, but the business logic is shifting noticeably. The demand for low-CO₂ materials is increasing, and partnerships in the chain are sharing the extra costs so that they do not land entirely with one link or ultimately with the customer. Moreover, clear standards are emerging against which to measure, for example, max four kilograms of CO₂ per kilogram for low-CO₂ primary aluminum and even lower values for recycled CIRCAL grades that fall below two kilograms of CO₂ per kilogram.
The choice fits into the broader "Ambition 2039" strategy whereby Mercedes is reducing emissions in design, materials, logistics and assembly step by step and making the remaining emissions transparent. This means it is more than a new powertrain or a green factory, it is the addition of process efficiency, energy mix and material selection, ultimately making clean kilowatt hours in the smelter measurable in fewer CO₂ per car sold.
Those who look ahead can see how this is reordering the raw materials chain. As automakers start reserving volumes based on carbon intensity, capital shifts to smelters on renewable power and to sorting technology that makes scrap streams pure enough for high-value applications. That creates a flywheel in which certification, traceability and independent verification make the difference between marketing and measurable profit, and in which the premium for clean material can decline over time through scale and competition.
Decarbonization in the automotive industry accelerates when design teams agree on CO₂ ceilings per component in the early stages and procurement contractually secures those ceilings with suppliers who can demonstrate their energy mix and scrap share. This is exactly how sustainability changes from an abstract goal to a hard specification that adds value in every step of the chain and reduces risk.
