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:
Mechanically unlocking and locking the doors
All doors must be unlocked or locked separately
if the central locking system fails.
Fig. 22 Driver's door: door lock cylinder
Fig. 23 Door: mechanically locking
Applies to: vehicles with anti-theft alarm system:
After unlocking using the lock cylinder and opening
the driver's door, you must press
Exterior lighting
Switching the lights on and off
Fig. 37 Instrument panel: light button module
Light switch
Press and hold 1 until the desired light function
is selected. The selected function is displayed
briefly in the instrument cluster. When switching
on the ignition, the AUTO light function is automaticall
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