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:
Rear Bumper Cover, Removing and Installing
Caution
If the vehicle has lane change assistance, the lane
change assistance control module -J769-/-J770- must be
recalibrated. Refer to
→ Electrical Equipment; Rep. Gr.96; Lane Change
Assistance; Lane Change Assistance, Calibrating.
Special tools and workshop e
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easily.
Rims
Rims with a bolted rim ring or with bolted wheel
covers consist of multiple pieces. These components
were bolted together using special bolts and a special procedure. You must not
repair or
disassemble them.
WARNING
Wheel bolts t
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