Audi A4 Owners & Service Manuals

Audi A4: Heating, Ventilation & Air Conditioning

Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning

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 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

 Introduction

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

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 Battery Charger -VAS5900- Service Charge

  WARNING Risk of injury. Follow all warning messages and safety precautions. Refer to → Chapter "Warnings and Safety Precautions".   Caution "Service charging" is not permitted for VW vehicles, because voltage surges can damage the on-board electronics. The Battery -A- must

 General information

Selecting the radio Fig. 148 Center display: FM station list Fig. 149 Center display: SiriusXM station list Depending on the vehicle equipment, the radio may support the FM, AM, and SiriusXM (satellite radio) frequency bands. Using the HD Radio receiver* also allows you to receive radio stations o

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