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
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Keys
Key set
Fig. 24 Your vehicle key set
Fig. 25 Vehicle key: PANIC button
The key set includes two vehicle keys when delivered
from the factory.
Vehicle key
You can unlock and lock your vehicle with the vehicle
key. To fold the key out, press the release
button
fig. 24.
If necessary, you can use
Receiver/Dryer, Removing and Installing
WARNING
Danger due to refrigerant coming out under pressure.
Danger of frost bite to skin and other parts of the
body.
Extract the refrigerant and immediately open the
refrigerant circuit after that.
If the refrigerant was extracted more than 10
minutes in the past and the re
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