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:
Interior Rearview Mirror
Overview - Interior Rearview Mirror
1 - Front Cover
For the mirror base
Press on until it engages audibly
2 - Clip
For the interior rearview mirror
Replace after removing the interior rearview mirror
3 - Bolt
1.5 Nm
Quantity: 2
4 - Rear Cover
Fo
Leaking or Damaged Components except A/C Compressor, Reservoir or
Receiver/Dryer
The refrigerant circuit was completely empty (for example
with larger leak or cracked hose)
Note
In the event of only a minor leak with slow escape of
refrigerant (e.g. at a small leakage point), the amount of
refrigerant oil lost and the amount of moisture penetrating is
not sufficien
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