19A-22
COOLING
Cooling circuit: Draining - Refilling
K9K
19A
a Remove:
-the bleed screw (4) of the coolant outlet unit,
-the bleed screw (5) of the heater matrix hose.
a Fill the cooling system with engine coolant recom-
mended by the manufacturer (see 19A, Cooling,
Engine cooling circuit: Specifications, page 19A-
1) and (see Vehicle: Parts and ingredients for the
repairwork) (04B, Consumables - Products) via the
expansion bottle until it overflows.
a Close all the bleed screws as soon as the coolant
starts to flow in a continuous stream.
a Pressurise the system using the (Ms. 554-07) to
check that there are no leaks (see 19A, Cooling,
Engine cooling circuit: check, page 19A-2) .
a Fill the expansion bottle until it overflows.
a Tighten the expansion bottle cap.
a Clean any surfaces soiled by the coolant.
BLEEDING
a
a Deactivate the air conditioning system so that the
fan assembly is not operating from the start of the
operation.
a Start the engine.
a Maintain the engine speed at 1500 rpm, sharply va-
rying the engine speed (up to the maximum) 2 to 3
times approximately every 2 minutes until the fan
assembly starts for the second time.
a Check that the heating is operating correctly.
a Allow the engine to cool until the coolant temperatu-
re is less than 50˚C.
a Make sure the coolant fluid level is at the
« Maximum » mark.
a Refit the expansion bottle cap.
K9K, and 834
135566
WARNING
Do not open the bleed screw whilst the engine is
running; this would damage the engine.
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