Audi A4 Owners & Service Manuals

Audi A4: Checking and Filling

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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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 General Information

  Note The laws and regulations listed below are applicable in Germany. Different or additional laws and regulations may apply in other countries. The effects of climate change can be seen worldwide. Protecting the climate is one of the most important responsibilities. However, this respon

 A/C Pressure Switch -F129-

  Note Switch pressures, removing and installing switches as well as switch arrangement and version. Refer to vehicle specific refrigerant circuit → Heating, Ventilation and Air Conditioning; Rep. Gr.87; System Overview - Refrigerant Circuit (vehicle-specific repair manua

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