VEHICLE AIR CONDITIONING COMPACT KNOWLEDGE FOR THE GARAGE

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VEHICLE AIR CONDITIONING COMPACT KNOWLEDGE FOR THE GARAGE

What is thermal management?

Thermal management means optimum engine temperature in all operating states and
heating and cooling of the vehicle interior. A modern thermal management system
therefore consists of engine cooling and air conditioning components.
Components of these two sub-assemblies which interact with each other often form a
unit. In this booklet we describe modern air conditioning systems and their technical
background. In this context, we also discuss their function, causes of failure, special
features and diagnostic methods

INDEX

AIR CONDITIONING
BASICS
Air conditioning check and air conditioning
service 04
Air conditioning and cooling unit 05
Air conditioning circuit 06
Components of the air conditioning system 07
Repair and service 14
Removal and installation instructions 15
Fault diagnostics 18
COMPRESSOR
Removing/installing and troubleshooting
air-conditioning compressors 20
Repairing and replacing
air conditioning compressors 22
Compressor damage 26
Development of noise 28
Compressors without magnetic clutch 30
Compressor designs 34
Filling oil into compressors 36
MAINTENANCE AND REPAIRS
Flushing the air conditioning system 38
Leak detection technologies 44
Repairing pipes and hoses 46
Refrigerants R12, R134a, R1234yf 47
Interior temperature sensors 48
Sealants 49
INNOVATIVE CLIMATE
MANAGEMENT
Innovative climate and
interior comfort management 50
Thermal management
in hybrid vehicles 54
COMPRESSOR OILS
AND TOOLS
PAG, PAO and POE air conditioning
compressor oils 62
Comparison of compressor oils 66
From oil type to compressor type 68
Product overview