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 c
Physical Principles
The four known states of water also apply to air
conditioning system refrigerants.
1 - Gaseous (invisible)
2 - Vapor
3 - Liquid
4 - Solid
Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as ref
General Description
The secondary air injection system sends air into the
exhaust using passages in the cylinder head. This extra air
injection takes place using the Secondary Air Injection Pump
Motor -V101- that is powered by the Secondary Air Injection Pump
Relay -J299- on a cold-start of the
You can find information about responsibility for
data protection in the MMI.
Applies to: MMI: Select on the home screen: SETTINGS
> General > Legal notes > About Audi
connect.
Image recording
Surrounding area monitoring
Applies to: vehicles with surrounding area monitoring
Some vehicle fu