Caitlin Duncan. Audi. October 13th , 2017.
A comprehensive range of infotainment choices is sure to keep everyone on board entertained. Optionally available, the MMI navigation plus with MMI touch includes the Audi connect hardware module. This connects the new RS5 Coupe to the internet using LTE technology. Thanks to the Audi connect SIM, which is permanently installed in the car, the flat-rate data package for the connect services including Europe-wide roaming is free of charge for three years. Passengers can browse the internet with their mobile devices via the Wi-Fi hotspot option. The Audi smartphone interface uses Apple Car Play and Android Auto to make selected apps available in a separate MMI menu. Operation is easy and intuitive, thanks to natural language voice control, free text search function and the multifunction steering wheel. The touchpad in the center console can be used to zoom, scroll and enter characters. Further high-end technologies, such as the head-up display and as many as 30 driver assistance systems enhance safety, comfort and efficiency. The intelligent interplay between these systems represents another step towards piloted driving.
As standard, the RS5 Coupe rides on 19-inch lightweight forged wheels with 265/35 tires. Upon request, 20-inch wheels in various designs are available, among which the new, especially lightweight fully milled wheel. It uses 275/30 tires. Behind the big wheels are powerful RS steel brakes with perforated composite disks. At the front axle, these have a diameter of 375 millimeters (14.8 in), while at the rear, they measure 330 millimeters (13.0 in). The six-piston brake calipers with RS logos are painted in black, or optionally in red. Upon request, Audi can also equip the front axle with high-performance ceramic brakes featuring six-piston brake calipers and perforated disks with a diameter of 400 millimeters (15.7 in).
In the classic Miller cycle, the reduced cylinder charge is detrimental to torque and power output. These aspects have been neutralized by Audi thanks to the implementation of turbocharging and the two-stage Audi valvelift system (AVS). The four camshafts of the 2.9 TFSI can each be adjusted by 50 degrees crank angle. At higher load and engine speed ranges, AVS closes the inlet valve later. The opening time increases from 130 to 200 degrees crankshaft angle, while at the same time the valve lift increases from 6.0 to 10.0 millimeters (0.2 to 0.4 in). Cylinder charging also increases considerably - the 2.9 TFSI revs up powerfully and delivers an impressive output.
The chain drive uses a new concept to reduce the drive power required: the crankshaft drives the balancer shaft via gears, with the shaft lying far down in the V of the cylinder banks. From here chains run to the four camshaft sprockets. These are trioval in shape, i.e. they have a slightly triangular shape, in order to compensate for peak forces. The balancer shaft rotates on roller bearings with particularly low levels of friction.
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