Renault Clio: Cooling system: Draining - Refilling
IMPORTANT
The circuits are designed to be pressurised, so be
careful at high temperatures (risk of serious burns).
Do not remove the cap from the expansion bottle
while the engine is hot.
Take care when carrying out a repair under the bonnet,
as the radiator fan(s) may start to operate without
warning.
Do not open the bleed screw(s) with the engine running.
WARNING
Before the operation, protect the electrical accessories
to prevent any risk of short circuiting and protect
the belts to avoid damaging them.
DRAINING
- Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 392, 02A, Lifting equipment).
- Remove:
- the expansion bottle cap,
- the engine undertray.
- Position the coolant recovery tray under the vehicle.
- Remove the cooling radiator bottom hose clip using
the (Mot. 1202-01) or (Mot. 1202-02) or (Mot.1448).
- Open the cooling system by disconnecting the bottom
hose from the cooling radiator.
- Use a compressed air nozzle to blow air into the
system through the expansion bottle opening to remove
as much coolant as possible.
CLEANING
- Fill the cooling system with water through the expansion
bottle.
- Let the water run until the water collected from the
cooling radiator bottom hose becomes clear.
- Use a compressed air nozzle to blow air into the
circuit through the expansion bottle opening to remove
as much water as possible.
- Refit:
- the cooling radiator bottom hose,
- the cooling radiator bottom hose clip with the (Mot.1202-01) or (Mot. 1202-02) or (Mot. 1448).
FILLING
Note:
There are two procedures for filling the cooling
system:
- the procedure using the (Mot. 1700) recommended
by Renault which saves a considerable
amount of time as the cooling system bleed
screws do not need to be opened,
- the procedure without a special tool.
I - FILLING PROCEDURE USING THE TOOL (MOT.1700)
- Fill the cooling system with engine coolant recommended
by the manufacturer (see Vehicle: Parts
and consumables for the repair) (MR 392, 04B,
Consumables - Products) using the (Mot. 1700)
(see ) (Technical Note 3857A, 19A, Cooling).
II - FILLING PROCEDURE WITHOUT A SPECIAL
TOOL
WARNING
It is essential to open all of the bleed screws to
remove as much as air as possible in the cooling
system. Failure to perform this procedure may
prevent the cooling system from filling properly
and may damage the engine.
Location of the bleed screw on the K9K water
chamber
Location of the bleed screw on the D4F, K4J, K4M
water chamber
Location of the bleed screw on the D4F, K4M, K4J, K9K heater radiator hose
- Open the bleed screws (1).
- Fill the cooling system with the engine coolant recommended
by the manufacturer (see Vehicle:
Parts and consumables for the repair) (MR 392,
04B, Consumables - Products) via the expansion
bottle until it overflows.
- Close all the bleed screws as soon as the coolant
starts to flow in a continuous stream.
- Pressurise the system using the (Ms. 554-07) to check that there are no
leaks (see 19A, Cooling, Engine cooling system: Check, 19A-5).
- Refit the expansion bottle cap.
- Clean any surfaces soiled by the coolant.
BLEEDING
WARNING
Do not open the bleed screw whilst the engine is
running; this would damage the engine.
D4F, and 740 or 742 or 764
- Maintain the engine speed at 2500 rpm, using the
pedal press for 5 minutes.
- Stabilise the engine speed at 2000 rpm until the fan
assembly has been activated twice.
D4F, and 784
- Maintain the engine speed at 2500 rpm, using the
pedal press for 5 minutes
- Stabilise the engine speed at 2000 rpm until the fan
assembly is activated.
- Note the coolant level in the expansion bottle after
this first activation.
- Accelerate at a minimum of 4000 rpm for a few seconds,
until the coolant fluid level in the expansion
bottle drops.
K9K
- Maintain the engine speed at 1500 rpm rapidly varying
the engine speed (until maximum speed is
reached) 2 to 3 times approximately every two minutes
until the fan assembly starts for a second time.
F4R or K4J or K4M
- Run the engine at 2500 rpm, until the engine cooling
fan has started to operate three times (time required
for automatic degassing).
M4R
- Let the engine run at 3000 rpm, until the engine
cooling fan has been activated three times (time required
for automatic degassing).
- Check that the heating is operating correctly.
- Allow the engine to cool until the coolant temperature
is less than 50
READ NEXT:
D4F, and 740 or 742 or 764, and STANDARD HEATING
REMOVAL
I - REMOVAL PREPARATION OPERATION
Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 392, 02A, Lifting equipment
D4F, and 740 or 742 or 764
IMPORTANT
To avoid all risk of damage to the systems, apply
the safety and cleanliness instructions and operation
recommendations before carrying out any
repair:
(see 19A
M4R
Note:
This engine has two thermostats: one thermostat is
located on the cylinder head and the other is on the
cylinder block.
REMOVAL OF THE CYLINDER HEAD
THERMOSTAT
I - REMOVAL PREPARATION OPERA
SEE MORE:
D4F, and 740 or 742 or 764
REMOVAL
I - REMOVAL PREPARATION OPERATION
Disconnect the battery (see Battery: Removal - Refitting).
Remove the air filter unit (see 12A, Fuel mixture,
Air filter unit: Removal - Refitting, 12A-17).
Disconnect the motorised throttle valve connector.
II - OPERATION F
K9K, and 764 or 772
WARNING
Before starting work on the vehicle, obtain:
a new blanking plug kit (part no. 77 01 476 857),
cleaning wipes (part no. 77 11 211 707),
cleaning product (part no. 77 11 224 188).
WARNING
Parts always to be replaced:
all the high pressure pipes which have been
rem
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