Audi SQ7 TDI (2017) – Off-Road Test Drive. In Europe, the new Audi SQ7 TDI can be ordered beginning spring 2016. It will be offered in Germany for a base price of €89,900. This price includes a significantly expanded range of standard equipment, valued at approx. €10,000, compared with the base model. Examples include LED headlights, 20-inch wheels, sportily contoured bumpers and door trim strips, adaptive air suspension with S-specific tuning, electrically adjustable and heated sport seats in Alcantara and leather, brushed aluminum inlays, 3-spoke multifunction sport steering wheel with shift paddles, anti-theft alarm and an enlarged tank with 85-liter capacity. In addition, the Audi SQ7 TDI is also the first production vehicle to feature an electric powered compressor with a 48-volt electrical subsystem. The factory-installed sound exhaust system provides for a sporty, unmistakeable V8 sound.
The 4.0 TDI has been newly developed from the ground up. It combines best-in-class performance with low consumption and guarantees maximum dynamics. The V8 engine has a displacement of 3,956 cc. The two exhaust-gas turbochargers are activated selectively according to the concept of sequential charging, since exhaust gas only flows through one turbocharger at low and intermediate load. The second turbine is only activated at higher loads. An electric powered compressor (EPC) augments the work of the two turbochargers, particularly in the lower engine speed range, providing for extremely dynamic off-the-line performance.
With 435 horsepower (320 kW) and 900 Nm (663.8 lb‑ft) of torque between 1,000 and 3,250 rpm, the SUV sets new benchmarks in the segment. It accelerates from 0 to 100 km/h (62 mph) in 4.8 seconds; top speed is 250 km/h (155.3 mph) (governed). In the New European Driving Cycle (NEDC), it consumes 7.4 liters per 100 kilometers (31.8 US mpg). This corresponds to CO2 emissions of 194 grams per kilometer (312.2 g/mi).
The electric powered compressor is a world first in a production vehicle. This EPC strongly supports the 4.0 TDI engine when starting off and accelerating from low load for pure dynamics with no turbo lag. It is placed in the air path downstream of the intercooler, close to the engine. Because the EPC does not require any exhaust-gas energy to develop boost, it can be used at any time, thus making it the solution for the traditional weaknesses of the classic exhaust-gas turbocharger. With this technology, turbo lag is history. The EPC provides the engine the boost energy needed for the dynamic delivery of power in less than 250 milliseconds. Driven by a compact electric motor, its compressor wheel spins up to 70,000 revolutions per minute. The 4.0 TDI thus develops its immense power with no perceptible lag: It is available immediately upon depressing the accelerator. That is a major plus, particularly when starting off.
For sporty drivers, it is one of the central objectives of road behavior: neutral handling up to the limit, even at high engine power. The optional sport differential provides stable and precise steering, particularly when accelerating dynamically out of curves. Variable torque between the wheels on the rear axle offers supreme control in curves. The SQ7 TDI is pressed precisely into the curve as a result. Even if the rear end starts to swing out, the quattro sport differential brings it back under control. This technology is available for the first time in the Q7 model line and is reserved exclusively for this top model.
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