New Audi SQ5 Sportback TDI 2021 review and description.
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At the forefront of the range is the Audi SQ5 Sportback TDI. Its cultivated three-liter diesel engine produces an output of 251 kW (341 PS), the powerful torque of 700 Nm (516.3 lb-ft) is constantly available from 1,750 rpm to 3,250 rpm. An actuator in the exhaust system lends the sound tone and richness. Performance: 0 to 100 km/h (62.1 mph) in 5.1 seconds, top speed of 250 km/h (155.3 mph) (electronically limited).
The 3.0 TDI has been made even better in many details. The pistons have been changed from aluminum to forged steel. This new material reduces heat losses and because of its strength does not incur any weight penalty compared with aluminum pistons The solenoid valve injectors are able to inject the fuel with a constantly high level of precision because a new piezoelectric sensor monitors the closing of the needle. It can perform up to eight individual injections per work cycle and also meter minimal fuel quantities with high precision.
MHEV and EPC: even more efficiency and spontaneity
The 3.0 TDI brings with it two technologies that reduce fuel consumption and enhance spontaneity. The 48 V mild hybrid system (MHEV) recovers up to 8 kW of power when decelerating. With the electricity from the lithium-ion battery, the CUV can coast for up to 40 seconds with the engine off, after which the belt-driven starter-alternator comfortably restarts the engine. Another building block in the 48 V network is the electric powered compressor (EPC). When moving off and accelerating from low rotational speeds, it accelerates the build-up of the boost pressure and ensures that the 3.0 TDI responds spontaneously.
As in all TDI engines, Audi employs the twin dosing technology with two SCR catalytic converters in the Q5 Sportback for the aftertreatment of the exhaust gas. The first of these catalytic converters lies directly behind the manifold in the exhaust line and serves as a particulate filter at the same time; the second is located away from the engine under the vehicle floor. With the two catalytic converters, different operating situations and a wide temperature window for the exhaust gas can be covered. Thanks to the twin dosing technology, the SQ5 Sportback TDI also comes in well below the limits set by the new Euro 6d ISC-FCM emission standard.
As with the 3.0 TDI version of the Q5 Sportback, a fast and smooth-shifting eight-speed tiptronic handles the power transmission in the S model. The quattro permanent all-wheel drive transfers the torque variably as needed to the front and rear axles. On request, Audi can supplement this with the sport differential, which actively adjusts the distribution of the torque between the rear wheels when driving in a sporty style, directing more torque to the outside wheel that has better grip – making the vehicle even more agile when cornering at speed. The outside rear wheel is also given more torque when accelerating out of tight radii in order to further increase the dynamism.
The suspension of the Audi SQ5 Sportback TDI is able to handle the performance of the powerful diesel drive with supreme ease. Five-link suspensions direct each of the four wheels. 20-inch wheels with 255/45 tires are standard, but 21-inch wheels from Audi or Audi Sport GmbH are available as an alternative. Six-piston brake calipers made of aluminum and brake disks with a diameter of 375 mm (14.8 in) are mounted on the front axle. The S sport suspension with damper control lowers the body by 30 mm (1.2 in) compared with the Q5 Sportback and offers an especially wide spread between comfort and dynamism.
Along with the optional sport differential, engine, steering and the automatic transmission, the controlled dampers are integrated in the standard Audi drive select dynamic handling system, which allows the driver to manage the character of these systems via six profiles. A seventh profile (allroad) is added if the adaptive air suspension with S-specific tuning is on board – the air suspension adapts the body’s ride height to the driving situation at the time. Dynamic steering is another optional module.
New 2021 Audi Sq5 Sportback Tdi - Sport Suv With 341Hp V6 Diesel / Explained In Detail / Full Review, Povozcar