300Tdi Discovery
V8i
3
REPAIR
THERMOSTAT
Service repair no - 26.45.01
Remove
1. Partially drain cooling system, until coolant level
is below thermostat housing.
2. Disconnect hose from thermostat housing.
3. Disconnect electrical connections to water
temperature switch.
4. Remove outlet elbow.
5. Withdraw thermostat.
Test
6. Note rating of thermostat is 88
°
C. Place
thermostat in a container half full of water. Heat
water, observe temperature at which thermostat
opens. Thermostat is satisfactory if it opens
between 85
°
C and 89
°
C.
Refit
7. Insert thermostat with jiggle pin/vent hole
uppermost (12 o’clock position).
8. Fit the outlet elbow and new joint washer.
Tighten to
28 Nm.
9. Reverse removal procedure. 1 to 3.
10. Check for coolant leaks around all connections
and joint faces.
