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:
Overview - Sunroof
1 - Panorama Roof Frame
Removing. Refer to
→ Chapter "Sunroof Frame, Removing and Installing".
2 - Seal
Open the panel "1" completely and remove
the seal.
When installing, first position is on the front side, then push it
to the rear under the panel "2
Check Valve, Checking
Check valve is removed, refer to
→ Chapter "Check Valve, Removing and Installing".
Note
The check valve is installed directly in front of the vacuum
pump.
Valve must allow air to flow in direction of arrow.
Valve must remain closed in opposite direction.
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