Audi A4 Owners & Service Manuals

Audi A4: Assist systems

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 General information

Safety precautions WARNING As the driver, you are always completely responsible for all driving tasks. The assist systems cannot replace the driver's attention. Give your full attention to drivin

 Driving information

 Speed warning system

Description Applies to: vehicles with speed warning system The speed warning system helps the driver to stay below a specified maximum speed. A warning threshold can be set in the MMI for this purpo

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 Expansion Valve

The expansion valve atomizes the streaming refrigerant and controls the flow quantity so that the vapor is gaseous only at the evaporator outlet, depending on the heat transmission.   Note Be sure to use the correct part number when replacing the expansion valve. Refer to the Parts Catalo

 Condenser

The condenser conducts heat from compressed refrigerant gas to the ambient air. This condenses the refrigerant gas to fluid.   Note Depending on the version of the refrigerant circuit, the receiver/dryer is installed (integrated) either on the condenser or inside the condenser. Refer to

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