Audi has unveiled its latest diesel engine, the V6 3.0 TDI mild-hybrid plus at 48 volts, marking a significant evolution in high-performance diesel technology. Set to debut on the Audi A6 and Q5 models from December 2025, this new powertrain promises enhanced performance, efficiency, and sustainability.
Key Takeaways
- The V6 3.0 TDI mild-hybrid plus delivers 299 horsepower and 580 Nm of torque with a dual turbocharger system.
- This engine reduces turbo lag through the integration of an electric air compressor (EAV) and exhaust-driven turbocharger.
- It offers up to 15% lower fuel consumption compared to previous V6 TDI engines, thanks to its advanced mild-hybrid technology.
The new V6 3.0 TDI mild-hybrid plus is a significant step forward in Audi’s diesel engine development. With the introduction of this powertrain, Audi aims to enhance both performance and environmental sustainability. The engine features an advanced dual turbocharger system that includes an electric air compressor (EAV) and an exhaust-driven turbocharger, effectively eliminating turbo lag.
At its core, the V6 3.0 TDI mild-hybrid plus integrates a new powertrain generator (PTG), which combines a powerful electric motor with sophisticated electronics and dedicated cooling systems. This setup not only supports low-speed electric driving but also contributes up to 24 horsepower and 230 Nm of torque, significantly enhancing the vehicle’s overall performance.
The engine is equipped with a lithium iron phosphate (LFP) battery of 1.7 kWh, optimized for rapid charge-discharge cycles. This battery works in tandem with the belt-driven alternator-starter to provide smoother and faster starts while improving energy management efficiency. The combination results in up to 25 kW of regenerative braking power.
With its advanced dual turbocharger system, the V6 TDI engine achieves a two-stage supercharging process that is more efficient than previous systems used on models like the S4 TDI, S6 TDI, and SQ5 TDI. The electric air compressor can reach 90,000 RPM in just 250 milliseconds, ensuring immediate compressed air supply even when exhaust gases are insufficient to drive the traditional turbocharger.
Frequently Asked Questions
What is the power output of the new V6 3.0 TDI mild-hybrid plus?
The engine delivers a robust 299 horsepower and 580 Nm of torque, making it one of Audi’s most powerful diesel engines to date.
How does the new technology reduce fuel consumption?
The advanced mild-hybrid system reduces fuel consumption by up to 15% compared to previous V6 TDI engines. This is achieved through efficient energy recovery and reduced turbo lag, improving overall engine efficiency.
In conclusion, Audi’s latest diesel innovation sets a new standard for high-performance and sustainable driving. The integration of advanced mild-hybrid technology with dual turbocharging marks a significant milestone in the evolution of diesel engines, reflecting Audi’s commitment to technological advancement and environmental responsibility.
