19A-17
COOLING
Cooling circuit: Draining - Refilling
K4M
19A
DRAINING
a Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
a Remove:
-the engine cover,
-the expansion bottle cap,
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the front section of the front wheel arch liners (see
Front wheel arch liner: Removal - Refitting)
(55A, Exterior protection),
-the engine undertray bolts,
-the engine undertray.
- the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection),
a Position the coolant draining tray under the vehi-
cle.
a Open the drain plug (1) for the radiator cooling sys-
tem.
a Use a compressed air nozzle to blow air into the
system through the expansion bottle opening to re-
move as much coolant as possible.
CLEANING
a Fill the cooling system with water through the expan-
sion bottle.
a Let the water run until the water collected by the coo-
ling radiator bottom hose becomes clear.
a Use a compressed air nozzle to blow air into the
circuit through the expansion bottle opening to re-
move as much water as possible.
a Close the drain plug of the radiator cooling system.
Essential special tooling
Mot. 1700 Fault finding and filling-blee-
ding cooling system.
Ms. 554-07 Cooling system tester kit
(complete). Contains plugs
554-01, 554-04, 554-06
Essential equipment
coolant draining tray
compressed air nozzle
pedal press
IMPORTANT
When working in the engine compartment, take
care as the radiator fan(s) may start up unexpecte-
dly (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 accesso-
ries to prevent any risk of short circuiting and pro-
tect the belts to avoid damaging them.
136540
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