Audi Q3 Owners & Service Manuals

Audi Q3: A/C System, General Information

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  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 s

  A/C Technology Basic Principles

Physical Principles The four known states of water also apply to air conditioning system refrigerants. 1 - Gaseous (invisible) 2 - Vapor 3 - Liquid 4 - S

  Refrigerant Oil

General Information   Caution When handling refrigerant oil, pay attention to local regulations. Refrigerant oil mixes with the refrigerant (about 20-40%, depending on compressor type a

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  Mechanically unlocking and locking the doors

All doors must be unlocked or locked separately if the central locking system fails. Fig. 22 Driver's door: door lock cylinder Fig. 23 Door: mechanically locking Applies to: vehicles with anti-theft alarm system: After unlocking using the lock cylinder and opening the driver's door, you must press

  Exterior lighting

Switching the lights on and off Fig. 37 Instrument panel: light button module Light switch Press and hold 1 until the desired light function is selected. The selected function is displayed briefly in the instrument cluster. When switching on the ignition, the AUTO light function is automaticall

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