Audi A7 2023 - Emissions Control System

Checking and Filling
Your vehicle is equipped with a misfueling
guard. It allows the vehicle to be fueled only
with the correct fuel pump nozzle.
—Aworn or damaged nozzle or a nozzle that
is too small may not be able to open the die-
sel misfueling guard. If this is the case, try
turning the nozzle before inserting it in the
fuel filler neck, use a different fuel pump, or
see an authorized Audi dealer or authorized
Audi Service Facility for assistance.
~The misfueling guard does not open when
adding fuel from a fuel container. When re-
fueling with a reserve canister, you must use
the funnel stored in the luggage compart-
ment © page 238.
Fueling with reserve canister (emergency
fueling)
Fig. 146 Fuel tank filler neck with the mounted funnel
Read and follow the important safety precau-
tions > A\ in Fueling procedure on page 237.
The funnel used for emergency fueling is con-
tained in the vehicle tool kit, which is located in
the luggage compartment under the cargo floor
© page 286.
» Fold up the cargo floor in the luggage compart-
ment.
» Remove the funnel from the vehicle tool kit.
» Press on the left side of the fuel filler door to
open it > page 236, fig. 144.
» Insert the funnel into the fuel filler neck all the
way until it stops © fig. 146. Make sure that the
ring on the funnel goes into the fuel tank filler
neck.
238
» Guide the reserve canister filler tube into the
funnel and start the emergency fueling.
» Remove and clean the funnel after the fueling
process. Then close the fuel filler door and
press on it until it latches.
Remove fuel that has overflowed onto any ve-
hicle components immediately to reduce the
risk of damage to the vehicle.
Fuel filler door emergency release
» Seek help from a qualified person if you cannot
open the fuel filler door.
» Afterward, drive to an authorized Audi dealer or
authorized Audi Service Facility to have the
malfunction repaired.
Emissions control
system
General information
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
— Never touch the exhaust tail pipes once they
have become hot. This could result in burns.
— Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the emissions sys-
tem could start a fire.
— Do not apply underbody protectant in the
exhaust system area, because this increases
the risk of fire.
Catalytic converter
Observe the safety precautions > page 238, Gen-
eral information.
The vehicle may only be driven with unleaded
gasoline, or the catalytic converter will be de-
stroyed.
Never drive until the tank is completely empty.
The irregular supply of fuel that results from that >