Audi Q7 Owners & Service Manuals

Audi Q7: A/C System, General Information

Audi Q7 (4M) 2016-2025 Workshop Manual / Heating, Ventilation & Air Conditioning / Refrigerant R134a Servicing / A/C System, General Information

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 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 c

 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 - Solid

 Refrigerant R134a

Refrigerant R134a Physical Data Vehicle air conditioning systems make use of the vaporization and condensation process. In this case, one works with a substance which boils easily, designated as ref

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 Safety Precautions

Safety Precautions when Working on Vehicle Pay Attention to the Following to Avoid Personal Injury and Vehicle Damage:   WARNING Risk of injury and accident by accidentally engaging a selector lever position with the engine running. Shift the transmission into "P" and set the parking brake

 Vacuum System

Connection Diagram - Vacuum System   Caution There is a risk that an engine malfunction may occur. When routing the vacuum lines, make sure they are not kinked, twisted or pinched.   Note Dark gray - vacuum supply line Red = control line to the intake manifold runner control vacuu

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