A4 allroad quattro Audi S4 Saloon

* Registered trademark of the Verband der Automobilindustrie e. V. (VDA).
Technology/safety
S tronic®
The 7-speed, electrohydraulically actuated dual-clutch
transmission facilitates shorter gearshift times and
gearshifting with virtually no perceptible interruption
in the power flow; can be operated via the shift paddles
behind the steering wheel (optional, standard with
S models) or the selector lever. In automatic mode the
driver can choose between the programs D (normal)
and S (sport).
Front-wheel drive
Electronic Differential Lock (EDL) through intervention
of the braking system on all driven wheels, Anti-Slip
Regulation (ASR), Electronic Stabilisation Control
(ESC) with brake assist
quattro®
permanent all-wheel drive with asymmetric/dynamic
torque distribution, self-locking centre differential
with wheel-selective torque distribution, distributes
the drive force depending on the driving situation to
each individual wheel for precisely controlled handling
quattro® with sport differential
The electronically controlled sport differential
distributes variable amounts of drive force to each
wheel and ensures outstanding acceleration
performance in corners and stabilises the vehicle’s
response to load change. It also improves direct
steering characteristics
and provides more agile
handling due to the lower steering effort required.
Start-stop system
helps to reduce fuel consumption and CO₂ emissions
by switching off the engine in stationary phases,
e.g. at traffic lights. The starting process is initiated
as soon as the driver presses the clutch or releases
the foot brake for the vehicle to move off again. Can
be deactivated at any time via a button
Recuperation
increasing the generator voltage converts kinetic
energy into usable electrical energy when the vehicle
is coasting or braking. This braking energy recovery
is used to assist the generator during subsequent
acceleration, saving up to 3 % fuel.
Audi TDI clean diesel
In addition to the standard equipment with catalytic
converter and diesel particulate filter, the new exhaust
aftertreatment system installed in the model with TDI
clean diesel leads to low exhaust emissions. Nitrogen
oxides are reduced by the innovative nitrogen oxide
catalytic converter (DeNOx catalytic converter) at the
end of the exhaust pipe. A pump injects tiny quantities
of the biodegradable additive AdBlue®*. This solution
then decomposes in the hot exhaust flow to form
ammonia, which splits the nitrogen oxides into
nitrogen and water. This splitting is called selective
catalytic reduction (SCR). Refill the separate AdBlue
tank as indicated by the information in the display of
the instrument cluster. We recommend having the
AdBlue tank refilled by your Audi partner (about every
15,000 km).
Misfuelling protection
mechanically prevents incorrect fuelling of diesel
vehicles with petrol
flexible fuel
The flexible fuel models can be operated with unleaded
petrol (RON 95), the bio-ethanol fuel E85, as well as
any mixture ratio of these two fuels. The E85 name is
derived from its fuel mixture which comprises 85%
bio-ethanol and 15% petrol.
Audi Extended Warranty
Audi Extended Warranty
can only be ordered directly and on purchase of a new
car; is a consistent continuation of the manufacturer’s
guarantee so that you are protected against risk
and can control servicing costs even after the first
2 years. There is a total of 9lifetime/total mileage
combinations to choose from:
Additional 1 year Audi Extended Warranty,
maximum total mileage 30,000 km
Additional 1 year Audi Extended Warranty,
maximum total mileage 60,000 km
Additional 1 year Audi Extended Warranty,
maximum total mileage 90,000 km
Additional 2 years Audi Extended Warranty,
maximum total mileage 40,000 km
Additional 2 years Audi Extended Warranty,
maximum total mileage 80,000 km
Additional 2 years Audi Extended Warranty,
maximum total mileage 120,000 km
Additional 3 years Audi Extended Warranty,
maximum total mileage 50,000 km
Additional 3 years Audi Extended Warranty,
maximum total mileage 100,000 km
Additional 3 years Audi Extended Warranty,
maximum total mileage 150,000 km
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