Renault Scenic Driver's Handbook Manual page 244

OPERATING FAULTS
On the road
– Steering wheel hard to turn:
– The engine overheats. The coolant
temperature warning light comes on
(or the coolant temperature indicator
is in the red zone).
Radiator: If there is a significant lack of coolant, remember that it must never be topped up using cold coolant while
the engine is very warm. After any procedure on the vehicle which has involved even partial draining of the cooling
system, it must be refilled with a new mixture prepared in the correct proportions. Reminder: only products approved
by RENAULT's Technical Department may be used for this purpose.
5.40
(continued)
CAUSES
– assistance overheating,
– weak or dead battery.
Coolant pump: belt stretched or broken.
Engine cooling fan not working.
Coolant leaks.
WHAT TO DO
Leave to cool.
Recharge or replace the battery.
Stop the vehicle and switch off the
engine. Contact a RENAULT Dealer.
Check the condition of the coolant circuit
pipes and unions and the tightening of
the clips.
Check the coolant reservoir: it should
contain fluid. If it does not, top it up (once
it has cooled). Take care not to scald
yourself. This action is only temporary;
consult your RENAULT Dealer as soon
as possible.