Audi Q3: A/C System, General Information
Audi Q3 (8U) 2011-2018 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant R134a Servicing / 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 a
SEE MORE:
Air Quality Sensor -G238-, Removing and Installing
Removing
- Remove the plenum chamber cover. Refer to
→ Body Exterior; Rep. Gr.50; Bulkhead; Plenum Chamber Cover,
Removing and Installing.
- Release the securing tab -4-
and turn the housing -1- for the
Air Quality Sensor -G238- counter-clockwise
-arrow-.
-
Front Brake Pads, Removing and Installing
Brake Pads, Removing and Installing, 1LJ, 1ZD Brakes
If old brake pads are being replaced with new ones, then it is necessary
to check the brake rotor thickness for wear. Pay attention to the wear
specifications for the brake rotor.
Special tools and workshop equipment
required
Torque Wr
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