Renault Laguna III, Manual

Page: 1483 / 3699

19A
-
95
COOLING
Thermostat: Removal - Refitting
V4Y
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
a
Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting ) (02A, Lifting equipment).
a
Remove:
- the engine cover,
- the engine undertray bolts,
- the engine undertray.
a
Drain the cooling system (see 19A , Cooling , Cool-
ing system: Draining - Refilling , page 19A-16 ) .
a
Remove:
- the front right-hand wheel (see Wheel: Removal -
Refitting ) (35A, Wheels and tyres),
- the front right-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting ) (55A, Ex-
terior protection),
- the accessories belt from the alternator (see 11A ,
Top and front of engine , Accessories belt: Re-
moval - Refitting , page 11A-13 ) .
a
Disconnect the connector ( 1 ) from the front row
camshaft dephaser solenoid valve.
Special tooling required
Mot. 1448 Remote operation pliers for
hose clips.
Tightening torques
m
thermostat bolts 10 N.m
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).
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
WARNING
When carrying out a repair that requires a complete
change, it is essential to flush the circuit with clean
water, blast compressed air through the circuit to
drive out the water, fill and bleed the circuit and
then measure the effective protection.
The criteria to be met are:
- protection down to -25˚C
± ± ± ±
2 for cold and temper-
ate countries,
- protection down to -40˚C
± ± ± ±
2 for "extreme cold"
countries.
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