Marelli, a global technology partner to the automotive industry, will highlight a selection of propulsion and
thermal innovations among the solutions displayed at its booth at Auto China 2026 (Beijing, April 24-May
3), themed “Rooted in innovation, everywhere”. These technologies are examples of how Marelli supports
vehicle makers across the powertrain evolution, with solutions tailored for different propulsion configurations
and regional requirements.
New e-Transmission Cooling Pump and flex fuel technologies supporting diverse propulsion
solutions
A major highlight at Marelli’s booth will be the new e-Transmission Cooling Pump, a cutting-edge system
engineered to deliver precise, on-demand oil cooling for modern transmissions. The solution maximizes
efficiency, enabling a 30-watt saving compared with the main market benchmark.
The technology is based on an innovative modular solution for transmission control, designed and optimized
specifically for e-axles and Dedicated Hybrid Transmissions (DHT), which offers high efficiency (40%),
seamless integration and a competitive cost. Leveraging a flexible design which uses brushless
technology and integrated electronics, the same base module can also support other multiple applications at
transmission level.
Among its main features, this technology delivers industry-leading operational efficiency, minimizes energy
consumption and improves both electric and fuel economy. Designed for compatibility with mechanical and
electronic environments, the solution reduces integration and validation costs. Available in both 12-volt and
48-volt variants, the solution is the first application of Marelli’s modular smart actuator concept that will
address a wide range of automotive applications, ensuring compatibility with current vehicle architectures
and emerging multi-voltage platforms.
In line with its commitment to supporting diverse propulsion strategies, Marelli will also showcase its Flex
Fuel system. The solution addresses the demand for sustainable, high-performance 3- and 4- cylinder
engines by enabling the use of biofuels and ethanol. Automatic fuel detection optimizes fuel efficiency and
emission performance, while integrated fuel rail heaters ensure reliable cold starts. Building on more than 20
years of expertise in flex fuel technologies, the system delivers enhanced flexibility, reduced environmental
impact and design and manufacturing tailored to regional market requirements.
Thermal management: optimized designs and miniaturization for lightweight, flexibility and
efficiency
In addition to propulsion solutions, Marelli will also present innovations from its Green Technologies
business, a closely related technological area focused on optimizing vehicle thermal energy and exhaust gas
management to support low-carbon, safe and reliable mobility.
At Auto China 2026, the company will highlight a selection of technologies designed to maximize thermal
efficiency for hybrid and electric powertrains. These solutions leverage advanced miniaturization of
electrification components, reducing mass and volume while ensuring optimal thermal performance. This
approach contributes to lower consumption and more efficient energy utilization at the vehicle level, resulting
in increased driving range.
Among these technologies, the High-Performance Chiller enhances battery thermal management in
electrified vehicles. Compared with previous designs, the solution delivers higher heat exchange
performance, improving battery temperature control and energy efficiency. These gains are achieved
through an ultra-fine inner fin structure and a lightweight design, which allow compact dimensions and more
uniform refrigerant flow. The system supports high charging rates, while offering strong cost advantages.
The eAxle Oil Cooler is a lightweight and efficient solution for effective heat exchange. It features a new
inner fin design that enables compact size and improved thermal performance, combined with an optimized
dimple structure that increases water flow speed and reduces dead water areas, boosting cooling efficiency.
The miniaturized design delivers space and weight savings, offers flexibility to accommodate different
layouts and provides cost advantages while meeting stringent performance standards.
Finally, the booth will feature the Full Aluminum Radiator, a proven solution already available on the
market for electric powertrains. This low-temperature radiator is designed to support efficient and reliable
battery cooling for New Energy Vehicles. The compact aluminum design reduces size and weight. The
solution enables high heat transfer performance and flexible layout, offering reduced costs and faster
cooling.
The High-Performance Chiller, eAxle Oil Cooler and Full Aluminum Radiator all feature mono‑material
aluminum construction, which supports easier recycling.
A distributed development model combining global coordination and local capabilities
These technologies have been developed through close collaboration between local and global teams, in
line with Marelli’s ‘distributed’ model for high-speed innovation to accelerate time-to-market. Illustrated at
Auto China by the theme “Rooted in innovation, everywhere”, this approach combines robust local
engineering, supply chains and production capabilities with strong global coordination to support customers
wherever they need, with localized design, development, sourcing and manufacturing across different
regions.
Marelli will showcase its latest solutions in propulsion, thermal and several other technology domains at the
Beijing International Automotive Exhibition, from April 24 to May 3, at booth W2B08, Hall W2, at the New
China International Exhibition Center (NCIEC) in Beijing.
About Marelli
Marelli is a global mobility technology supplier to the automotive sector. With a strong and established
track record in innovation and manufacturing excellence, our mission is to transform the future of mobility
through working with customers and partners to create a safer, greener, and better-connected world. With
around 40,000 employees worldwide, the Marelli footprint includes over 150 sites globally.
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