Changing Engine Coolant
WARNING:
To avoid being scalded, never change the coolant when the
engine is hot.
—DRAINING ENGINE COOLANT—
Heater
1. Set heater system as follows to prevent coolant from remain-
ing in the system.
Move temperature control dial all the way to“HOT”.
Semi-automatic air conditioning
1. Set air conditioning system as follows to prevent coolant from
remaining in the system.
a. Turn ignition switch“ON”and enter a temperature of 32°Con
the heater control.
b. Wait 30 seconds before turning ignition switch“OFF”.
2. Disconnect lower radiator hose and remove radiator cap.
3. Remove reservoir tank, drain coolant, then clean reservoir
tank.
Install it temporarily.
Be careful not to allow coolant to contact drive belts.
4. Remove cylinder block drain plug and air relief plug.
5. Check drained coolant for contaminants such as rust, corro-
sion or discoloration.
If contaminated, flush engine cooling system.
Refer to“FLUSHING COOLING SYSTEM”, MA-41.
—REFILLING ENGINE COOLANT—
6. Install lower radiator hose, reservoir tank and tighten cylinder
block drain plug securely.
Apply sealant to the thread of the cylinder block drain
plug.
:55-75N·m (5.7 - 7.6 kg-m, 41 - 55 ft-lb)
7. Fill up radiator with coolant at the speed of less than 3(2-5/8
Imp qt)/min.
If coolant spills from the air relief hole without bubbles, install
the plug and then pour coolant in again.
NMA104 Turn to HOT
Temperature control dial
NMA103 Temperature control
.NLC040
.Radiator
lower hose
NLC041 Drain plug
(cylinder block)
SMA353C Air
bleeder
ENGINE MAINTENANCECD20T
MA-40
