Specifications
15
Audi cylinder-on-demand
Dynamic performance does not necessarily
equate to higher consumption – as the 1.4 TFSI®
cylinder-on-demand engine proves. Using advanced
cylinder-on-demand technology to automatically shut
down two of the four cylinders when the engine is
operating at lower loads, particularly when cruising
on the motorway or in city traffic, you benefit from
the efficiency and low emissions of a comparable
diesel engine. Out on the open road, meanwhile, the
instantaneous power of TFSI®, combining turbocharging
with petrol direct injection, is ready and waiting.
Recuperation
When a vehicle brakes, the discs convert the kinetic
energy into thermal energy, which is wasted as it cannot
be used. With a recuperation system, like the one that
is fitted as standard on all A3 models, the kinetic energy
is converted into useful electrical energy. The way it
works is simple. While the car is coasting or braking, the
alternator voltage is raised above the level of the basic
electrical system, which enables the alternator
to generate electrical energy and store it temporarily
in the battery. When the vehicle accelerates, this energy
is used to relieve the load on the alternator, resulting
in a fuel saving of up to 3%.