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Audi A3 2012 - Page 175

Audi A3 2012
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Maintenance booklet. Lack of proper
maintenance as well as improper use of
the vehicle will impair the function of
the emission control system and could
lead to damage.
- Do not alter or remove any component of
the Emission Control System unless ap-
proved by the manufacturer.
- Do not alter or remove any device, such
as heat shields, switches, ignition wires,
valves, which are designed to protect
your vehicle's Emission Control System
and other important vehicle compo-
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
"' Try to avoid driving short distances with a
cold engine .
The engine and catalytic converter have to
reach their optimal operating temperature to
reduce fuel consumption and noxious emis-
sions effectively.
- Just after starting, a cold engine in a mid-
size car burns the fuel at a poor rate of 6-8
miles per gallon (30-40 L/100km). Half a
mile down the road, the mileage improves
to 12 MPG (20 l/100 km).
It will take the
engine no less than
two and a half miles
(4 km) of driving to warm up to its proper
operating temperature and operate at an
economic mileage. This explains why taking
the car for short trips is a rather wasteful
convenience.
- The outside temperature is also critical in
this regard. Your car consumes more fuel in
the winter than in the summer.
Driving and environment 173

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