Audi A4 Owners & Service Manuals

Audi A4: Heating, Ventilation & Air Conditioning

Audi A4 (B9) 2016-2023 Service Manual / Heating, Ventilation & Air Conditioning


 Warnings when Working on Vehicles with High Voltage System

Vehicles with a High-Voltage System (Hybrid Vehicles) Working on Vehicles with High-Voltage System (Hybrid Vehicles) Extremely Dangerous Due to High-Voltage The high-voltage system is under high-volta

 A/C System, General Information


The purpose of this repair manual is to provide service advisors and technicians with the basic knowledge needed to ensure professional and competent procedures.   Note Only the careful study



Key set Fig. 26 Your vehicle key set Vehicle key You can unlock and lock your vehicle with the vehicle key. Mechanical key and release buttons for the mechanical key A mechanical key is integrated in the vehicle key. To remove it, press the release button and remove the mechanical key. Usi

 Map update

Introduction Applies to: vehicles with navigation system You can update the map data in the MMI with a map update. The functions depend on the country and vehicle equipment. Map update through online map update Import a map update from the USB connection to your MMI Online map update Applies to

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