- Most-powerful diesel engine on the European market
- High vehicle dynamics thanks to roll stabilization, all-wheel steering and sport differential
- Touch response operation, extensive connection, many assist systems
Power and efficiency: 4.0 TDI with electric powered compressor
The biturbo V8 in the Audi SQ8 TDI (combined fuel consumption in l/100 km: 7.8 (30.2 US mpg); CO2 emissions combined in g/km*: 205 – 204 (329.9 – 328.3 g/mi)) is the most powerful diesel engine on the European market. It combines immense power with a high level of economy and integrates a whole package of high-tech solutions. The engine provides 320 kW (435 metric hp) and develops 900 Nm (663.8 lb-ft) of torque between 1,250 and 3,250 rpm. This allows the 4.0 TDI to accelerate the SUV coupe like a sports car: The 100 km/h (62.1 mph) mark is reached after 4.8 seconds, and the SQ8 TDI** only reaches its electronic propulsion limit at 250 km/h (155.3 mph). Power transmission takes place via an eight-speed tiptronic and the quattro permanent all-wheel drive.
An electric powered compressor (EPC) supplements the work of the two turbochargers when starting off and when accelerating at a low engine speed, allowing the V8 TDI to always build up its power spontaneously. The EPC draws its drive power from a 48-volt electrical system, which is also the backbone of the mild hybrid system (MHEV). Its belt alternator starter can recuperate during deceleration and feed power to the lithium-ion battery.