300Tdi Discovery
26
COOLING SYSTEM
2
ADJUSTMENT
3. Disconnect bottom hose from radiator. Drain
coolant into a clean container. Reconnect bottom
hose, re-tighten hose clamp.
NOTE: It is not possible to drain all coolant
retained in heater system. It is not
desirable to flush through system, after
draining.
4. Remove engine drain plugs, one each side of
cylinder block, beneath exhaust manifolds. Drain
coolant, refit and tighten plugs.
5. Pour correct solution of water and anti-freeze
into expansion tank until radiator is full.
6. Start engine, run it until normal operating
temperature is attained, topping up as
necessary.
7. Refit radiator filler plug and ’O’ ring, with new ’O’
ring if required. Tighten to
6 Nm.
8. Fit expansion tank filler cap.
9. Allow engine to cool, check coolant level. Finally
top up expansion tank until level reaches seam
of expansion tank.
