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
SEE MORE:
Seat Pan Cover and Cushion, Removing and Installing
Special tools and workshop equipment required
Backrest Panel Tool -3370-
Hook Tool -T40207-
Engine/Transmission Holder - Seat Repair Fixture -VAS6136-
Caution
This procedure contains mandatory replaceable parts.
Refer to component overview and parts catalog prior to
starting procedur
Finding Leaks via Vacuum Test using A/C Service Station or Nitrogen
Pressure Testing
Vehicles with a High Voltage System (Hybrid Vehicles)
Read and follow all of the supplemental warnings for all
work performed on vehicles with the high voltage system. Refer
to
→ Chapter "Warnings when Working on Vehicles with High Voltage
System" and
→ Electrical Equipment;
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