Rover DEFENDER 300Tdi, Workshop Manual

Page: 359 / 450

HEATING AND VENTILATION
1 REPAIR
HEATER UNIT
Service repair no - 80.20.01
Remove
1. Remove bonnet and disconnect battery.
2. Remove radiator bottom hose at radiator union
and drain cooling system See COOLING
SYSTEM, Repair, Drain and refill cooling
system .
3. Slacken clips and remove heater hoses at
heater box unions.
4. Remove outer cable securing clips.
5. Slacken trunnions and remove control cables
from heater vent flap levers.
6. Remove heater wiring harness securing loop.
7. Disconnect harness multi-plug.
8. Remove interior bulkhead trim.
9. Remove lower nuts and bolts securing the
heater unit to the bulkhead.
10. Slacken heater unit upper retaining bolts.
11. Manoeuvre heater unit, complete with blower
motor, clear of air inlet duct and remove from
engine compartment.
12. If existing heater unit is to be refitted, remove
sealing rubber.
For heater matrix removal
See Heater matrix .
For blower motor removal See Blower motor .
Refit
13. Smear a new heater unit sealing rubber with a
suitable impact adhesive and fit to heater.
14. Manoevre heater unit into position in engine
compartment, fit blower motor to air inlet duct
and locate upper fixing bolts.
15. Loosely fit heater unit lower fixing bolts.
16. Fully tighten upper fixing bolts.
17. Fully tighten lower fixings and refit interior
bulkhead trim.
18. Secure wiring harness and reconnect multi-plug.
19. Fit control cables to vent flap trunnions and
secure with outer cable clips.
20. Connect heater hoses.
21. Fit radiator bottom hose and refill cooling system
See COOLING SYSTEM, Repair, Drain and
refill cooling system .
22. Fit bonnet and reconnect battery.