1999 LAND ROVER DISCOVERY coolant

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Page 1170 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
DESCRIPTION AND OPERATION 80-13
Operation
Air distribution
Turning the distribution knob on the control panel turns the control flaps in the heater assembly to direct air to th

Page 1171 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
80-14DESCRIPTION AND OPERATION
Coolant temperature control
When the ECU first enters the active mode, it initiates a start to full load combustion. Full load combustion continu

Page 1179 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
80-22REPAIRS
Heater assembly - models without air 
conditioning
$% 80.20.01.99 
Remove
1.Drain cooling system.
l
 
 +  COOLING SYSTEM - Td5, 
ADJUSTMENTS, Drain and refill.
l

Page 1180 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
REPAIRS 80-23
8.Remove 2 screws securing console bracket  to 
tunnel and remove bracket. 
9.Release radio coaxial cable from behind heater  
pipes. 
10.Protect the carpet from

Page 1186 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
REPAIRS 80-29
Heater matrix  
$% 80.20.29 
Remove
1.Remove heater assembly.
 
 +  HEATING AND VENTILATION, 
REPAIRS, Heater assembly - models with 
air conditioning.
2.Remove 2

Page 1187 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
80-30REPAIRS
Pipe - Heater - Return 
$% 80.25.12
Remove
1.Drain engine coolant. 
 
 +  COOLING SYSTEM - V8, 
ADJUSTMENTS, Drain and refill.
2.Release clip securing heater retur

Page 1188 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual HEATING AND VENTILATION
REPAIRS 80-31
Fuel burning heater - (FBH) - Td5
$% 80.40.01.99
Remove
1.Release fixings and remove battery cover.
2.Disconnect battery earth lead.
3.Clamp feed and return coola

Page 1191 of 1529

LAND ROVER DISCOVERY 1999  Workshop Manual AIR CONDITIONING
82-2DESCRIPTION AND OPERATION
A/C control system component layout
RH drive shown, LH drive similar
1Air temperature control ECU
2Heater coolant temperature sensor
3Evaporator temperat