Renault Laguna III Manual page 1565

Coolant temperature sensor: Removal - Refitting
V9X
Tightening torquesm
air filter unit air outlet
pipe clips
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
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.
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
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) .
COOLING
6 N.m
a Undo the clips (1) for the air filter unit air outlet pipe.
a Unclip the vacuum pipes (2) of the turbocharger con-
trol solenoid valve.
a Disconnect the oil vapour rebreathing pipe (3) from
the air pipe.
a Remove the air outlet pipe from the air filter box.
19A-177
19A
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