BMW is applying the same lifecycle sustainability approach to both the electric and combustion versions of the new 3 Series Sedan. The company says supply chain CO2e emissions have been cut by around 37 percent for the electric BMW i3 and around 30 percent for the combustion model, with recycled content making up roughly a third of the electric car. Four Bavarian plants — Dingolfing, Landshut, Irlbach-Straßkirchen and Munich — handle the work between them, with short transport distances between sites.

The new BMW 3 Series Sedan is the first model where BMW extends its full lifecycle sustainability programme across every drive train variant, from the battery-electric i3 through to the combustion-engine car. According to the manufacturer, the levers run from raw material sourcing and production all the way to the use phase and recycling.

Cutting emissions before the car is built

BMW says the supply chain is the single biggest lever. During the development phase, supply chain CO2e emissions were reduced by around 37 percent for the BMW i3 and by around 30 percent for the combustion variant — the latter figure is a preliminary forecast that will be confirmed with the Vehicle Footprint before start of production. The company credits renewable energy contracts, higher recycled content and changes to products and processes.

Battery cells and aluminium get particular attention. The Gen6 cells in the i3 use secondary material for part of their cobalt, lithium and nickel, and renewable electricity is used both for anode and cathode material production and for cell manufacturing. Compared with the Gen5 cell fitted to the BMW i4, BMW says the CO2e footprint per watt-hour has fallen by roughly 33 percent.

How much of the car is recycled material

Aluminium suspension parts — wheel rims, swivel bearings and wheel supports — are produced using renewable electricity for both electrolysis and manufacturing. The bonnet is made from approximately 70 percent recycled aluminium. Overall, BMW puts the secondary material share at around 31 percent of the total vehicle for the battery-electric i3 50 xDrive, and around 25 percent for the combustion-engine 3 Series.

Four plants, short distances

The Bavarian cluster is central to the plan. Landshut, BMW’s largest component plant worldwide, casts the e-drive housing for the electric car’s rear axle alongside crankcases and cylinder heads for the combustion model; the drive trains themselves come from Plant Steyr in Austria. Irlbach-Straßkirchen, under construction since spring 2024, begins supplying Gen6 high-voltage batteries for the i3 in October 2026 and ships them to Munich on electric trucks. BMW says the site needs no fossil fuels for regular operations, draws on an on-site photovoltaic array plus renewable electricity, and requires no water for battery assembly.

Munich builds the Neue Klasse vehicles under the BMW iFACTORY principles, with all external power from renewable sources and a closed material loop for steel and aluminium press shop scrap. At Dingolfing, a rooftop solar array of just under 11 megawatt peak has been running since late 2025, and a new biomass heating plant supplies up to 100,000 megawatt hours of heat — around half the site’s process heat demand.

“The cluster approach to BMW production is directly linked to the concept of sustainability: Short distances and close proximity are key characteristics of a cluster, creating direct economic, environmental and social sustainability benefits through regional networking and concentration. A regional production cluster, like at BMW, creates added value for the economy, people, the environment and, of course, the region,” explains Prof Dr Rudolf Juchelka, Chair of Economic Geography, especially Transport and Logistics at the University of Duisburg-Essen.

Efficiency on the road

BMW’s EfficientDynamics package, in use across the range since 2007, covers aerodynamics, lightweight construction, low rolling resistance tyres and energy management. The electric i3 adds the in-house “Heart of Joy” Dynamic Performance Control driving stack, which BMW says recovers more energy through recuperation in more situations, right down to a standstill. Silicon carbide electronics in the Gen6 electric drive units cut energy losses by up to 40 percent, according to the company.

What it means

The headline here is transparency as much as engineering. BMW will publish a TÜV-validated Product Carbon Footprint for the 3 Series when the car goes on sale, including the calculation methodology, with component-level figures calculated under Catena-X rules. Published, third-party-checked lifecycle numbers remain rare in the segment, and they give buyers and fleet operators something they can compare rather than a marketing claim.

The new 3 Series Sedan reaches the market following its series launch, with battery supply from Irlbach-Straßkirchen starting in October 2026.

Source: www.press.bmwgroup.com