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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  Uniform tire quality grading

Tread wear Traction AAA BC Temperature ABC Quality grades can be found where applicable on the tire side wall between tread shoulder and maximum section width fig. 154. For example: Tread wear 200, Traction AA, Temperature A. All passenger car tires must conform to Federal Safety Requirement

  Central Locking

Component Location Overview - Central Locking 1 - Hood Contact Switch 2 -F329- Inside the rear lid lock Removing and installing. Refer to → Chapter "Engine Hood Contact Switch -F266-, Removing and Installing". 2 - Front Passenger Door Control Module -J387-

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