| IMPORTANT
To avoid all risk of damage to the systems, apply
the safety and cleanliness instructions and operation
recommendations before carrying out any
repair. |
| IMPORTANT
When working in the engine compartment, take
care as the radiator fan(s) may start up unexpectedly
(risk of being cut).
To avoid any risk of serious burns when the engine
is hot:
- do not open the expansion bottle cap,
- do not drain the cooling system,
- do not open the bleed screw(s).
|
| WARNING
Before the operation, protect the electrical accessories
to prevent any risk of short circuiting and protect
the belts to avoid damaging them. |
I - OIL SERVICE
- Position the vehicle on a two-post lift.
| WARNING
The coolant helps to keep the engine running
properly (heat exchange).
The system does not operate using pure water. |
| WARNING
Drain with the engine warm.
Flush and refill with the engine cold or warm.
Never flush a hot engine (risk of major thermal
shock). |
| WARNING
When carrying out a repair that requires a complete
change, it is essential to flush the circuit
with clean water, blast compressed air through
the circuit to drive out the water, fill and bleed the
circuit and then measure the effective protection.
The criteria to be met are:
- protection down to -25ºC +- 2 for cold and temperate
countries,
- protection down to -40ºC +- 2 for "extreme cold"
countries.
|
- Remove the engine undertray.
- Position the coolant recovery tray under the vehicle.
- Remove the drain plug (1) .
- Remove the radiator cap (2) .
- Use a compressed air nozzle to blow air into the
circuit through the radiator opening to remove as
much coolant as possible.
2TR
- Remove the coolant drain plug (3) from the cylinder
block and drain all of the engine coolant from the circuit.
- Remove the expansion bottle.
- Drain the expansion bottle.
II - CLEANING
- Fill the cooling system with water through the radiator
opening.
- Let the water run until the water collected by the
cooling radiator bottom hose runs clear.
- Use a compressed air nozzle to blow air into the
circuit through the radiator opening to remove as
much coolant as possible.
III - FILLING
| Note:
Carefully clean the drain plug and refit a new O-ring. |
- Refit the expansion bottle.
2TR
- Refit the coolant drain plug (3) on the cylinder block.
- Refit the drain plug (1) .
- Remove the air filter unit.
- Remove:
- the clip (4) ,
- the heater hose (5) .
- Lift the heater hose (5) as high as possible.
Note:
Capacity of the engine coolant:
- 2TR - BVV (CVT): 7.2 l,
- M9R - BVM: 8.0 l,
- M9R - BVA: 8.5 l.
|
- Pour the coolant slowly, at less than 2 l/min, so that
the air escapes from the cooling system.
- When the coolant starts to go out of the heater matrix,
connect the heater hose to the heater matrix
and continue to pour coolant until the radiator is full.
2TR
- Fill with coolant up to the " MAX " mark on the expansion
bottle.
M9R
| Note:
The coolant level rises approximately 15 mm
when the engine stops. |
- Fill with coolant up to 15 mm below the " MAX "
mark on the expansion bottle.
- Refit the radiator cap.
- Refit the air filter unit .
- Clean any surfaces soiled by the coolant.
IV - BLEEDING
- Start the engine.
- Maintain the engine speed at 3000 rpm, until the engine
cooling fan assembly is triggered a third time
(time required for automatic degassing).
- Check that the heating is operating correctly.
- Allow the engine to cool until the engine coolant temperature
is less than 50ºC.
- Remove the radiator cap.
- Top up the coolant level (6) .
- Refit the radiator cap.
V - FINAL OPERATION
- Remove the coolant recovery tray.
- Refit the engine undertray.
|
