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
Removing
- Turn off the ignition.
- Remove the plenum chamber cover -A-.
Refer to
→ Body Interior; Rep. Gr.50; Bulkhead; Plenum Chamber Cover,
Removing and Installing.
- Depending on the engine and the vehicle version, if
necessary loosen the lower plenum chamber
Overview - Control Module and Hydraulic Unit
Note
If the ABS Control Module -J104- is faulty it can be
replaced separately.
If the ABS Hydraulic Unit -N55- is faulty it must be
replaced together with the ABS Control Module -J104-.
Control Module and Hydraulic Unit
1 - Nut