Audi A4: Checking and Filling
Audi A4 (B9) 2016-2026 Owner's Manual / Maintenance and Care / Checking and Filling
- Fuel
- Refueling
- Emissions control system
- Motor compartment
- Engine oil
- Cooling system
- Brake fluid
- Battery
- Safety precautions
- Charging the 12 volt vehicle battery
- Windshield washer system
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Fuel
Types of gasoline
The correct gasoline grade is stated on the inside
of the fuel filler door.
The vehicle is equipped with a catalytic converter
and must only be driven with unleaded gasoline.
Audi r
Refueling
Messages
The following messages may appear depending
on the vehicle equipment:
Messages
If the indicator light appears
with a corresponding
message, refuel the vehicle.
Tank system: malfunction!
P
Emissions control
system
General information
WARNING
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
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Services
Applies to: vehicles with Audi connect vehicle control
Using Audi connect vehicle control services, you
can perform tasks such as viewing data about
your vehicle or control vehicle functions remotely.
You can view and use services available for your
vehicle at my.audi.com or through the my
Windshield Antenna Suppression Filter -C18-, Removing and Installing
Windshield Antenna Suppression Filter -C18-, Removing and Installing,
Sedan
The Windshield Antenna Suppression Filter -C18- is located
behind the left D-pillar trim panel at the center of the
D-pillar.
Removing
- Turn off the ignition and all electrical equipment and
remove the ignition key
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