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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 Balancing

General Information Before beginning balancing, the following requirements must be fulfilled. Tire inflation pressure must be OK. The tire tread must not be worn down on one side and should be at least 4 mm deep. The tire must not have any flat spots. It is not possible to balance a flat spot

 Wheels and Tires, General Information

Only install tires with the same manufacturer, construction type and tread on all wheels. Always replace rubber valve when replacing steel wheel or rim. Install tires with DOT identification facing toward outside of wheel. Only applies to left side of vehicle with directional tires. With directi

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