Renault K4M - Engine Cooling Circuit: Check

19A-2
COOLING
Engine cooling circuit: check
19A
INTRODUCTION
Expansion bottle cap valve rating
I - CHECKING THE COOLING CIRCUIT USING THE
(MOT. 1700)
a
1 - Checking the expansion bottle cap valve
a Use the cooling system filling and diagnostic tool
(Mot. 1700). Consult the user's manual for this tool
(see Cooling system filling and diagnostic tool:
Use) (Technical Note 3857A, 19A, Cooling).
2 - Checking the sealing of the cooling circuit
a Use the cooling system filling and diagnostic tool
(Mot. 1700). Consult the user's manual for this tool
(see Cooling system filling and diagnostic tool:
Use) (Technical Note 3857A, 19A, Cooling).
II - CHECKING THE COOLING CIRCUIT USING THE
(MS. 554-07)
a
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
Ms. 554-06 Spare cap for testing expan-
sion bottle valves (2nd fitting).
Ms. 554-01 Spare expansion bottle adap-
ter cap.
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).
Note:
There are two procedures for checking the cooling
system:
- the procedure using the (Mot. 1700)
- the procedure using the (Ms. 554-07).
Colour of hand on the
expansion bottle cap
Valve rating
Yellow 1.4 bar
WARNING
If the coolant is leaking from the expansion bottle
cap, replace the valve.
107138
WARNING
If the coolant is leaking from the expansion bottle
cap, replace the valve.