Catalytic Converter - Audi A7 Sportback 2016 Owner's Manual

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Note
- Vehicle components such as the engine ,
transmission, suspension or e lectr ical sys-
tem can be severe ly damaged by driving
through water .
- Always switch the Start-Stop -System* off
when driving through water
c>
page 80.
@
Tips
- Determine the depth before driving through
water.
- Do not stop the vehicle, drive in reverse or
switch the eng ine off when driving through
water.
- Keep in mind that oncoming vehicles may
create waves that raise the water level and
make it too deep for your vehicle to drive
through safely.
- Avoid driving through sa lt water (corrosion).
Catalytic
converter
Applies to vehicles: with gasoline engine
I t is very impor tan t tha t your emission control
system (catalyti c converter) is functioning prop-
erly to ensure that your vehicle is running in an
environmentally sound manner .
... Always use lead-free gasoline
c>
page 210,
Fuel supply .
... Never run the tank down all the way to empty .
.,. Never put too much motor oil in your engine
c>
page 222, Adding engine oil~
-
.,. Never try to push- or tow-start your veh icle.
The catalytic converter is an eff icient "clean-up"
dev ice bu ilt into the exhaust system of the vehi-
cle . The catalytic converter burns many of the
pollutants in the exhaust gas before they are re-
leased into the atmosphere.
The exclusive use of unleaded fuel is critically im-
portant for the life of the catalyt ic converte r and
proper functioning of the eng ine .
A
WARNING
The temperature
of the exhaust system is
high, both when driving and after stopping
the engine .
Dri v ing and t h e en v ir o nm e n t
- Never touch the exhaust tail pipes once they
have become hot. This could resu lt in burns.
- 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 material which can cause a fire.
- Do not app ly additional undercoating or
rustproofing on or near the exhaust mani-
fold, exhaust pipes, catalytic converter or
heat shields . During dr iving, the substance
used for undercoat ing could overheat and
cause a fire .
CD
Note
- Be aware that just one tank filling with lead-
ed fuel will already ser iously degrade the
performance of the catalyt ic converter .
- Do not exceed the correct engine oil level
¢ page 222 .
- Do not drive until the fuel tank becomes
completely empty . The engine cou ld misfire .
Unburned fuel could also get into the ex-
haust system and this cou ld cause the cata-
lyt ic converter to overheat.
- Do not switch off the ignit io n while the veh i-
cle is movi ng.
- Do not continue to ope rate your veh icle un-
der these conditions, as othe rwise fuel can
reach the catalytic converter . This could re-
sult in overheating of the co nverter , requ ir-
ing its replacement .
- To assu re eff icient operation of the Emission
Contro l System:
- Have your vehicle maintained properly and
in accordance with the serv ice recommen-
dat ions in your Warranty & Maintena nce
booklet .
- Lack of proper maintenance as we ll as im-
proper use of the vehicle will impair the
function of the emission control system
and could lead to damage.
@
For the sake of the environment
Even when the Emiss ion Control System is op-
erating properly, the exhaust gas can have a
su lfu r-like exhaus t gas sme ll unde r some op-
erating states. Th is depends on the s ulfur
197

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