Catalytic Converter - Audi A6 2017 Owner's Manual

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is empty or until no more fluid flows into the
tank .
.,. Remove the canister and close the filler tube
c:>
page 197, Comple ting AdBlue refill .
CD
Note
Only use refi ll canisters that are approved for
your vehicle. Using other systems can cause
Ad Blue to leak.
(D
Tips
- An authorized Audi dealer or authorized
Audi repair facility can tell you which ref ill
canisters are approved for your vehicle.
- A permitted refill canister conta ins approxi-
mately 1.3 gallons (5 liters) of AdBlue.
Completing AdBlue refill
Applies to: vehicles with selective catalytic reduc t ion
Closing the filler neck
.,. Turn the cap on the filler neck to the right with
the wheel wrench until the cap clicks into place.
This t ightens the cap to the specification
c::>
.&.
in Filling AdBlue on page 196,
c:> 0
in Filling
AdBlue on page 196.
.,. The n press on the left side of the tank doo r un-
t il it latches .
After filling
The vehicle must be dr iven so that the system
recognizes that the Ad Blue was refilled . This can
take severa l m inutes.
.,. If there was no Ad Blue left in the tank and a
range of O mi (0 km) was shown in the display,
switch the ign ition on for about 30 seconds be-
fore starting the engine.
(D
Tips
Ad Blue can freeze at very low temperatures.
If th is happens , the system will not detect
that the Ad Blue was refilled and it will contin-
ue to inform yo u of the low Ad Blue level. The
message turns off as soon as the tank thaws
out again .
Ch e c k ing an d Filling
Catalytic converter
Applies to: vehicles with gasoli ne engine
I t is very important that your emission control
system (cataly t ic converter) is functioning prop-
erly to ensure that your vehicle is running in an
environmentally sound manner.
.,. Always use lead-free gasoline
c:>
page 190 , Fuel
supply.
.,. Never run the tank down all the way to empty .
.,. Never put too much motor o il in your engine
c:>
page 203, Adding engine oil.
.,. Never try to push- or tow-start your vehicle.
The catalytic converter is an efficient "clean -up"
device built into the exhaust system of the ve hi-
cle. The catalyt ic converter burns many of the
po llutants in the exhaust gas before they are re-
leased into the atmosphere.
The exclusive use of un leaded fuel is cr itically im-
portant for the life of the catalytic converte r and
prope r funct ion ing of the eng ine .
_&.
WARNING
The tempera tu re of t he exhaus t sys t em is
high, bot h when driving and aft er stopping
the engine .
- Never tou ch the exhaust tail pipes once they
have become hot. This cou ld resu lt in burns.
- Do not park or operate the vehicle in ar eas
where the hot exhaus t sys t em may come in
contact with dry grass, brush, fuel spill or
other material which can cause a fire.
- Do not app ly additiona l undercoating or
rustp roofing on or near the exhaust mani-
fold, exha ust pipes, cata lytic converter or
heat shields . During driving, the substance
used for undercoat ing could overheat and
cause a fire.
CD
Note
- Be aware that just one tank filling with
leaded
fuel w ill already seriously degrade
the performance of the catalytic converter .
- Do not exceed the correct engine oil leve l
c:>
page 203.
197