Technical data

In FSI® technology, the fuel is injected directly
into the combustion chamber and atomised into
a fine spray. This way, the fuel – metered to
almost droplet precision – can be called upon the
millisecond that the engine requires it. This can
contribute to better use of the fuel and thus to
reduced fuel consumption.
The A3 models employ TFSI technology. This
combines the advantages of FSI – efficiency and
dynamism – with a turbocharger, which ensures
even better power delivery. The 1.4 TFSI engine
with 103 kW in the Audi A3 and A3 Sportback
features intelligent Audi cylinder on demand
technology. During relaxed driving, when full
engine power is not required, Audi cylinder on
demand automatically deactivates two cylinders.
The result: the engine runs significantly more
efficiently and CO₂ emissions are reduced – without
you noticing the difference.
The 1.8 TFSI engine with 132 kW in the A3 and
A3 Sportback works with the Audi valvelift
system and intelligent thermal management.
More torque is generated at low engine speed by
switching between two exhaust cam contours.
You feel the effect directly: the engine reacts
more quickly and accelerates with S tronic from
0 to 100 km/h in 7.2 seconds in the A3 and in
7.3 seconds in the A3 Sportback. The Audi
valvelift system also helps you to save fuel and
reduce CO₂ emissions. In addition to direct fuel
injection, the 1.8 TFSI (132 kW) uses indirect
injection, which makes the part load range even
more efficient.
The turbochargers of both engines have an
electric wastegate actuator which regulates the
charging pressure particularly quickly and
precisely. In addition, the exhaust manifold has
been integrated in the water-cooled cylinder
head, shortening the engine warm-up period and
reducing the exhaust gas temperature. All
these measures help to reduce consumption,
particularly with a sporty driving style.
In the 2.0 TFSI quattro engine, 221 kW power
the S3 with S tronic from 0 to 100 km/h in
4.8 seconds and the S3 Sportback in 4.9 seconds.
This engine also works with the Audi valvelift
system, as you will immediately notice through
the direct, agile response. And the integrated
exhaust manifold also helps reduce consumption.
All the TFSI engines on this page already meet
the stringent requirements of the EU6 emission
standard.
The fuel consumption and CO₂ emission figures as well as the efficiency classes can be found from page 122 onwards.
In just a few seconds you will understand why.
Audi cylinder on demand in the TFSI
engine. When the concentrated power
of the four cylinders is not needed in
the low and medium load r
ange and
when coasting, cylinders 2 and 3 switch
off automatically. This means that no
air is taken in, no fuel is injected and
no exhaust-gas is emitted in these
cylinders. The switched-off cylinders are
reactivated the moment you accelerate
and you have the full power of all
cylinders at your disposal again.
A3S3_A3S3SB_Technik18_2013_09.indd 57 06.08.13 12:02