Land Rover Discovery: Climate Control - Air Conditioning
COMPONENT LOCATION - VEHICLES WITHOUT AN INTERNAL HEAT EXCHANGER ( IHX )
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- Refrigerant pressure sensor
- Thermostatic eXpansion Valve (TXV)
- Evaporator
- Receiver/Drier
- Condensor
- Air Conditioning (A/C) compressor
- Low pressure line
- High pressure line
- Low pressure servicing connection
- High pressure servicing connection
COMPONENT LOCATION - VEHICLES WITH AN INTERNAL HEAT EXCHANGER ( IHX )
.jpg)
- Refrigerant pressure sensor
- Thermostatic eXpansion Valve (TXV)
- Evaporator
- Receiver/Drier
- Condensor
- Air Conditioning (A/C) compressor
- Low pressure line
- High pressure line
- Low pressure servicing connection
- High pressure servicing connection
Overview
A choice of Air Conditioning (A/C) systems are available with features to enhance the performance for second and third-row seat passengers.
The system is available in two forms, with an optional rear air conditioning unit.
- Manual air conditioning system.
- Two-zone auto system, with separate LCD display controls for driver and front passenger.
- Vehicles with 5+2 seating, an optional auxiliary air conditioning unit
for
third row passengers is available, with controls for temperature and fan
speed.
For additional information, refer to: Auxiliary Climate Control (412-02 Auxiliary Climate Control, Description and Operation).
The rear air conditioning has a child lock function which disables the rear fan speed control switches. This is feature is accessed from the Touch Screen.
The A/C system transfers heat from the passenger compartment to the outside atmosphere to provide the climate control assembly with dehumidified cool air.
The A/C system is a sealed closed-loop system, filled with refrigerant as the heat transfer medium. Refrigerant oil is added to the refrigerant to lubricate the internal components of the A/C compressor:
- R1234yf refrigerant is used in USA and Canada (NAS market); systems with an Internal Heat Exchanger (IHX) installed.
- R134a refrigerant is used in the ROW markets; systems without an Internal Heat Exchanger (IHX).
For additional information, refer to: Specifications (412-01 Climate Control, Specifications).
The compressor is a variable displacement unit, where the displacement (flow of refrigerant) is controlled to match the thermal load of the evaporator. The type of compressor fitted will depend on engine variant, see below.
The operation of the A/C system is controlled by the Automatic Temperature Control Module (ATCM).
For additional information, refer to: Control Components (412-01 Climate Control, Description and Operation).
Climate Control Air
Conditioning Compressor - Ingenium I4 2.0l
Diesel
(G1885406)/ Removal and
InstallationClimate Control - Air
Conditioning / Description
READ NEXT:
Climate Control - Air
Conditioning / Description
DESCRIPTION
The air conditioning system includes the following features:
B-pillar mounted mid-level vents for row 2 passengers
Face-level vents mounted in the C-pillar on vehicles with 5+2 seating,
Climate Control - Air
Conditioning/ Operation
PRINCIPLES OF OPERATION
To accomplish the transfer of heat, the refrigerant is circulated around the
system, where it passes through two pressure/temperature regimes. In each
of the regimes the refrig
SEE MORE:
Electronic Engine Controls
- Ingenium i4 2.0l Diesel
Oil Pressure and Temperature Sensor (G1909611)/ Removal and Installation
PART(S)
REMOVAL
NOTES:
Some variation in the illustrations may occur, but the essential
information is always correct.
Some components shown removed for clarity.
Removal steps in this procedure may contain installation details.
WARNING:
Make sure to support the vehicle with axle stands.
Rais
Diesel exhaust fluid (DEF)
In order to comply with exhaust emissions
requirements, some vehicles with diesel
engines are fitted with a reservoir
containing Diesel Exhaust Fluid (DEF). In
some markets, DEF is known as AdBlue,
AUS 32 and ARLA 32.
Note: It is a legal requirement that the
DEF system is used correctly, as detailed
