Warming Up And Cooling Down; Catalytic Converter - Audi RS 5 Cabriolet 2013 Owner's Manual

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A
WARNING
,~
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
the brakes first by braking carefully to re-
store the full brak ing effect.
([)
Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys-
tem can be severely damaged by driving
through wate r.
@
Tips
- Check the depth of the water before dr iv-
ing through it.
- Do not stop the veh icle, dr ive in reverse
or switch the engine off when driving
th rough water.
- Keep in mind that oncoming vehicles
may create waves that raise the water
level and make it too deep for you r vehi-
cle to drive through safely.
- Avoid dr iving through salt water because
it can cause corrosion.
Warming
up and
cooling
down
By carefully warming up and cooling down
your vehicle, you can he lp ensure that it is not
overstressed unnecessarily during sporty driv-
ing.
When warming up, the vehicle is driven at a
maximum engine speed of 6000 RPM in order
to raise the engine oil temperature
to a mini-
mum of 140 °F (60 °C). The tires also only
reach their full road holding capability once
they have warmed up .
The cooling fan can continue to run in your ve-
hicle after the engine is switched off. Howev-
er, driving the vehicle to cool it down is part ic-
ularly important . During sporty driving, the
engine and brakes, the exha ust system, and
the transm ission all become ext remely hot.
Before you park the vehicle, you shou ld drive
Dri v in g and en v ir o nm e n t
1 85
it for a few miles/kilometers
at light load in
the low rpm range to allow it to cool down.
Catalytic
converter
It is very important that your emission con-
trol system (catalytic converter) is function-
ing properly to ensure that your vehicle is run-
ning in on environmentally sound manner.
""Always use lead-free gasoline
c>
page 202,
Fuel supply.
"" Never run the tank down all the way to emp-
ty.
"" Never put too much motor o il in your engine
<=>
page 212,
~
Adding engine oil .
""Never try to push- or tow-sta rt you r vehicle.
The catalyt ic converter is an efficient "clean-
up" dev ice bui lt into the exhaust system of
the ve hicle. The cata lytic conve rter bu rns
many of t he pollutants in the exha ust gas be-
fo re t hey are released into the atmosphere.
The exclusive use of unleaded fue l is critically
important for the life of the catalyt ic convert-
er and proper funct ion ing of the engine.
A
WARNING
~
- The temperature
of the exhaust system
is high, both when driving and after stop -
ping the engine.
- Never touch the exhaust tail pipes once
they have become hot . This could result
in burns .
- Do not park or operate the vehicle in
areas where the hot exha ust system may
come in contact with dry grass, brush,
fuel spill or other material wh ich can
cause a fire.
- Do not apply additional undercoating or
rustproof ing on or near the exhaust
manifold, exhaust pipes, catalytic con-
verter or heat shields . During driving, the
substanc e used fo r undercoating could
overheat and cause a fire.

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