Audi A4 Owners & Service Manuals

Audi A4: Driver assistance

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 Cruise control system

Description Applies to: vehicles with cruise control system The cruise control system assists the driver in maintaining a constant speed above approximately 15 mph (20 km/h). The system maintains th

 Efficiency assist

Description Applies to: vehicles with efficiency assist Efficiency assist can assist the driver with predictive information in order to reduce fuel consumption. Depending on vehicle equipment, the

 Audi adaptive cruise control

General information Applies to: vehicles with Audi adaptive cruise control Depending on vehicle equipment, Audi adaptive cruise control may consist of the following functions: Within the limits of the

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 A/C System Repair Information

Air conditioning systems designed for refrigerant R12 are only to be filled with refrigerant R134a if certain requirements are fulfilled. Refer to → Chapter "Refrigerant Circuit, Converting R12 to R134a and Servicing" and Repair manual: Air Conditioner with R12 Parts 2 and 3. This repa

 Battery

Battery General Information To guarantee a long service life, the Battery -A- must be checked, serviced and maintained as described in this manual. The Battery -A- supplies the power to start the engine. The Battery -A- also acts as a power reserve for the entire vehicle electrical system.  

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