300Tdi Defender
HEATING AND VENTILATION
1
DESCRIPTION AND OPERATION
HEATING AND VENTILATION SYSTEM
Description
The heating and ventilation system is standard on all
models. Air conditioning is an optional system which
provides fully integrated climate control for the vehicle
interior.
The heater assembly, comprising a matrix housed in a
distribution unit and a variable speed blower motor, is
located on one side of the engine compartment and
attached directly to the fascia bulkhead.
The heating controls are positioned on the outside of
the instrument binnacle and cable linked to
mechanical flaps in the distribution unit.
Heater assembly
1. Heater distribution unit
2. Fixings, heater to fascia bulkhead
3. Heater matrix
4. Blower motor housing
5. Circlip, impeller to blower motor
6. Impeller
7. Resistor unit and harness connector
8. Fixings, blower motor mounting plate
9. Mounting plate, blower motor
10. Blower motor
11. Fixings, blower motor to mounting bracket
12. Temperature flap, air flow to heater matrix
13. Air flap, air supply to plenum chamber (heater
duct)
