Audi Q3: A/C System, General Information
Heating, Ventilation & Air Conditioning / Audi Q3 (8U) 2011-2018 Service Manual / A/C System, General Information
- Introduction
- A/C Technology Basic Principles
- Refrigerant Oil
- A/C System and Refrigerant R134a Safety Precautions
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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 aSEE MORE:
Safety systems monitoring
The
indicator light in the instrument cluster
monitors the safety systems such as the airbags
(including the control modules, sensor, and wiring)
and the belt tensioners. It turns on when you
switch the ignition on and turns off after several
seconds.
If the indicator light does not turn on when
Belt Fastening Detection
Front Passenger Occupant Detection Sensor -G128-, Removing and Installing
Note
The passenger occupant detection sensor is only installed in
the front passenger seat.
Special tools and workshop equipment
required
Wiring Harness Repair Set - Hot Air Blower -VAS1978/14A-
Only for
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