Renault Laguna III Manual page 1498

Water chamber: Removal - Refitting
K4M
Special tooling required
Mot. 1448 Remote operation pliers for
hose clips.
Mot. 1202-01 Clip pliers for hose clips
(large size).
Mot. 1202-02 Clip pliers for hose clips
(small size)
Tightening torquesm
water chamber bolts
(initial torque)
water chamber bolts
heater matrix hose
bracket bolt
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 very cold coun-
tries.
WARNING
Before the operation, protect the electrical accesso-
ries to prevent any risk of shor t circuiting and pro-
tect the belts to avoid damaging them.
COOLING
REMOVAL
I - REMOVAL PREPARATION OPERATION
a Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
a Drain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-16) .
4 N.m
12 N.m
10 N.m
a Unclip:
- the engine wiring at (1) ,
- the heater matrix hose at (2) .
a Remove the coolant temperature sensor (see 19A,
Cooling, Coolant temperature sensor: Removal -
Refitting, page 19A-167) .
19A-110
19A
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