Catalytic Converter - Audi A4 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 th rough safely.
- Avoid dr iving through sa lt water because
it can cause corrosion.
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 an environmentally sound manner.
11-
Always use lead-free gasoline
q
page 214,
Fuel supply .
"'" Never run the tank down a ll the way to
empty.
11-
Never put too much motor oil in your en-
gine
q
page 224,
~
Adding engine oil .
11-
Never try to push - or tow-start your veh icle .
The catalytic converter is an efficient "clean-
up" device built into the exhaust system of
the vehicle . The catalytic converter burns
many of the pollutants in the exhaust gas be-
fore they are released into the atmosphere .
Dri v in g and en v ir o nm e n t
19 5
The exclusive use of unleaded fuel is critically
important for the life of the catalytic convert-
er and proper funct ion ing of the engine.
A
WARNING
-
- Do not park or operate the vehicle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other mate rial wh ich can
cause a fire .
- Do not apply additional undercoating or
rustp roof ing on or near the exhaust
manifold, exhaust pipes, catalytic con-
ve rt er or heat shields. During driv ing, the
substance used for undercoating could
overheat and cause a fire.
(D
Note
- Be aware that just one tank filling with
leaded fuel will already ser iously de-
gra de the performance of the catalytic
converte r.
- Do not exceed t he cor rect eng ine oil level
qpage 224.
- Do not drive until the fue l tank becomes
comple t ely empty. The engine could mis-
fire . Unburned fuel could also get int o
the exhaust system and th is could cause
the catalytic converter to overheat .
- Do not turn off the ignition while the ve-
hicle is moving.
- Do not continue to ope rate your veh icle
unde r these conditions, as otherwise fuel
can reach the catalytic converte r. This
cou ld result in overheating of the con-
verter, requir ing its replacement.
- To assure efficient operation of the Emis-
sion Control System:
- Have you r vehicle maintained prope rly
and in accorda nce with the serv ice rec-
ommendat ions in your Warranty &
Main t enance boo klet.
- Lack of prope r maintenance as we ll as
improper use of the vehi cle will impair
the function of the em ission contro l
system and could lead to damage .
..,.

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