New engine for Audi A5

The driving works in the revised Audi A5 family have been improved in efficiency and sportiness. Even the 1.8 TFSI unit entry shows, which is capable of modifications Audi.In the 1789 Audi A5 mobilized cc four-cylinder 1400-3700 tours stramme 320 Nm of torque onto the crankshaft. At 3,800 revolutions he comes to its maximum output of 125 kW (170 hp). The 1.8 TFSI, the manually shifted A5 Coupe in 7.9 seconds from zero to 100 km / h and further to 230 km / h top speed. On average it rich but 5.7 liters of gasoline per 100 km, which corresponds to a low CO2 emissions of 134 grams per km. Compared to the 118 kW (160 hp) engine with predecessors, consumption fell by a whopping 21 percent. In addition, the four-cylinder is already used for the values ​​of around 2015 € 6-binding norm.

Audi A5 has all-electronic refrigerant control

Audi A5 Coupe has the four-cylinder on a new fully automated coolant system. Two fast-acting rotary valve, integrated into a module and an electric motor operated via worm gear, control the flow of the coolant. To the engine oil after a cold start quickly as possible to bring up to temperature, the cooling water remains for quite a long time in the crankcase, the interior heater is powered from the separate circulation of the cylinder head. The main water cooler which dissipates the heat to the environment of the Audi A5 is not activated until as late as possible.

Lots of clever ideas in the Audi A5 Coupe

In the Audi A5, the new rotary valve module adjust the water temperature as required 85-107 degrees Celsius, so always be the best compromise between internal friction and thermodynamic efficiency found. Regulating valves in the cooling system switched the heat flows between the motor, heat exchanger from the transmission and interior. Total saves the thermal management of the 1.8 TFSI as climate change around 2.5 g CO2 per km. The weight of the engine fell through new materials and savings from 135 to 131.5 kg. The internal friction could be a different coating the piston skirts and a roller bearing of the balance shafts reduced.