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:
Safety Precautions
Start/Stop System Safety Precautions
Pay attention to the following when working on a vehicle
with Stop/Start system:
WARNING
There is a risk of injury if the engine starts
automatically in vehicles with the Start/Stop System.
For vehicles with an activated Start/Stop system
(
Drive Axle Threaded Connection, Loosening and Tightening
Special tools and workshop equipment
required
Socket AF 24 mm -T10361A-
Digital Torque Wrench -VAG1756A-
The wheel bearing must not be under a load while the drive
axle threaded connection on the wheel side is loose.
If the bearings are loaded by the vehicle weight the wheel
bearing
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