2018 RENAULT TWINGO cooling

5.22
BATTERY: troubleshooting (1/3)
To avoid all risk of sparks:
– Ensure that any electrical consumers (courtesy lights, etc.) are switched
off before disconnecting or recon-
necting the battery.
– When charging, stop the charger before connecting or disconnecting
the battery.
– Do not place metal objects on the battery to avoid creating a short cir-
cuit between the terminals.
– Always wait at least one minute after the engine has been switched off
before disconnecting a battery.
– Make sure that you reconnect the battery terminals after refitting.
Connecting a battery charger
The battery charger must be com-
patible with a battery with nominal
voltage of 12 volts.
Do not disconnect the battery while the
engine is running. Follow the instruc-
tions given by the manufacturer of
the battery charger you are using.
Special procedures may be
required to charge some
batteries. Contact your ap-
proved dealer.
Avoid all risk of sparks which may
cause an immediate explosion, and
charge the battery in a well venti-
lated area. Risk of serious injury.
Handle the battery with care
as it contains sulphuric acid,
which must not come into
contact with eyes or skin. If
it does, wash the affected area with
plenty of cold water.
Ensure that naked flames, red hot
objects and sparks do not come into
contact with the battery as there is a
risk of explosion.
The engine may be hot when car-
rying out operations in close prox-
imity. In addition, the engine cooling
fan can come on at any moment.
Risk of injury.

5.32
On the roadPOSSIBLE CAUSESWHAT TO DO
Vibrations. Tyres not inflated to the correct pres-
sure, incorrectly balanced or dam-
aged. Check the tyre pressures: if this is not the
problem, have them checked by an ap-
proved Dealer.
Coolant boiling in the coolant reservoir. Mechanical fault: damaged cylinder
head gasket.Stop the engine.
Contact an approved Dealer.
Smoke under the bonnet. Short circuit or cooling system leak.Stop, switch off the ignition, stand away
from the vehicle and contact an approved
dealer.
The oil pressure warning light comes
on:
while cornering or braking The level is too low. Top up the engine oil level (refer to the in-
formation on “Engine oil level: topping up/
filling” in Section 4).
is slow to go out or remains lit under
acceleration Loss of oil pressure.
Stop the vehicle and contact an approved
Dealer.
OPERATING FAULTS (3/6)

5.33
On the roadPOSSIBLE CAUSESWHAT TO DO
Steering becomes heavy. Assistance overheating.
Fault with the electric assistance
motor.
Fault in the assistance system. Drive carefully at reduced speed, be aware
of the level of force in the steering wheel
needed to turn the wheels. Consult an ap-
proved dealer
The engine overheats. The coolant
temperature indicator and the warn-
ing light
® come on. Engine cooling fan not working. Stop the vehicle, switch off the engine and
contact an approved Dealer.
Coolant leaks. Check the coolant reservoir: it should con- tain fluid. If there is no coolant, consult an
approved Dealer as soon as possible.
OPERATING FAULTS (4/6)
Radiator: If there is a 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 drain\
ing of the cooling system, it must
be refilled with a new mixture prepared in the correct proportions. Remi\
nder: only products approved by our Technical
Department may be used for this purpose.