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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Opening and closing the hood
The hood is released from inside the vehicle.
Fig. 144 Footwell: release lever
Fig. 145 Unlocked hood: lever
Observe the safety precautions.
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged.
Opening the hood
With the door open, pull the lever
Light Switch -E1-, Removing and Installing
Removing
- Turn the light switch to position "0".
- Push the light switch in direction of
-arrow A- and turn right at the same time in direction of
-arrow B-.
- Hold the switch in this position ad at the same time remove
the light switch from the switch housing
-1-, to do th
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