Specifications

19A-3
COOLING
Engine cooling system: Check
19A
Expansion bottle cap valve rating:
I - CHECKING THE COOLING SYSTEM USING THE
TOOL (MOT. 1700)
a
1 - Checking the expansion bottle cap valve
a Use the cooling system filling and diagnostic tool.
Consult the user's manual for this tool (see Cooling
system filling and diagnostic tool: Use) (Techni-
cal Note 3857A, 19A, Cooling).
2 - Checking the sealing of the cooling circuit
a Use the cooling system filling and diagnostic tool.
Consult the user's manual for this tool (see Cooling
system filling and diagnostic tool: Use) (Techni-
cal Note 3857A, 19A, Cooling).
II - CHECKING THE COOLING SYSTEM USING THE
TOOL (MS. 554-07)
a
IMPORTANT
When working in the engine compartment, take
care as the radiator fan(s) may start up unexpect-
edly (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
- the procedure using the
Expansion bottle cap with
...
Valve rating
... a brown circle 1.2 bar
... a yellow marking 1.4 bar
... a white marking 1.6 bar
... a grey marking 1.8 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.