Audi A4 Owners & Service Manuals

Audi A4: A/C Service Station, Connecting

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 General Information

Vehicles with a High Voltage System (Hybrid Vehicles) Extremely Dangerous Due to High-Voltage The high-voltage system is under high-voltage. Death or serious bodily injury by electric shock. - I

 Service Station, Connecting with Connections on Low- and High Pressure Side of Refrigerant Circuit

Servicing Station, Connecting for Measuring and Testing - Turn off the ignition. - Connect the service station to the power supply. - Connect the quick-release coupling adapter to the c

 Service Station, Connecting with No Connection on Low- and High Pressure Side of Refrigerant Circuit

General Information On the following vehicles, no service connection is provided for the service station on the low-pressure side of the refrigerant circuit; adapters must be used to connect the se

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 Cooling system

Coolant The engine cooling system is filled with a mixture of purified water and coolant additive at the factory. This coolant must not be not changed. The coolant level is monitored using the indicator light. However, you should occasionally check the coolant level. Messages The following messag

 Fuel Filler Door Unit

Overview - Fuel Filler Door Unit 1 -  Drain Hose From the fuel filler door unit Removing and installing. Refer to → Chapter "Fuel Filler Door Unit Drain Hose, Removing and Installing". 2 -  Emergency Release Cable Removing and installing. Refer to → Chapter "E

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