2017-2022 Renault Scenic 4 Door Practical advice -> Battery: troubleshooting User Manual
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Practical advice -> Battery: troubleshooting for Your Renault Scenic 4 Door Fourth Generation (2017-2022)

12 VOLT BATTERY: troubleshooting (1/2)  
To avoid all risk of sparks:  
Connecting a battery charger  
– Ensure that any consumers (cour-  
tesy lights, etc.) are switched off  
before disconnecting or reconnect-  
ing the battery;  
The battery charger must be com-  
patible with a battery with nominal  
voltage of 12 volts.  
Do not disconnect the battery when the  
engine is running. Follow the instruc-  
tions given by the manufacturer of  
the battery charger you are using.  
– when charging, stop the charger  
before connecting or disconnecting  
the battery;  
– to avoid creating a short circuit be-  
tween the terminals, do not place  
metal objects on the battery;  
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. If necessary,  
consult a doctor.  
– 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.  
Ensure that naked flames, red hot  
objects and sparks do not come into  
contact with the battery as there is a  
risk of explosion.  
Special procedures may be  
required to charge some  
batteries. Contact your au-  
thorised dealer.  
Please note when working close to  
the engine that it may be hot. In ad-  
dition, the engine cooling fan may  
start at any moment. The  
warning light in the engine compart-  
ment reminds you of this.  
Avoid all risk of sparks which may  
cause an immediate explosion, and  
charge the battery in a well venti-  
lated area.  
Before performing any  
action in the engine com-  
partment, the ignition must  
Risk of injury.  
Risk of serious injury.  
be switched off (please see  
the information on “Starting, stop-  
ping the engine” in Section 2).  
5.30  
12 VOLT BATTERY: troubleshooting (2/2)  
Starting the vehicle using the  
battery from another vehicle  
3
If you have to use the battery from an-  
2
3
other vehicle to start, obtain suitable  
jump leads (with a large cross section)  
from an approved dealer or, if you al-  
ready have jump leads, ensure that  
they are in perfect condition.  
2
B
1
2
A
The two batteries must have an iden-  
tical nominal voltage of 12 volts. The  
battery supplying the current should  
have a capacity (amp-hours, Ah) which  
is at least the same as that of the dis-  
charged battery.  
5
4
Ensure that there is no risk of contact  
between the two vehicles (risk of short  
circuiting when the positive terminals  
are connected) and that the discharged  
battery is properly connected. Switch  
off your vehicle ignition.  
Lift the red cover on box 1 located  
behind the battery.  
Connect the positive cable A to sup-  
port 3 (+) located under the box  
cover 1, then to terminal 5 (+) of the  
battery supplying the current.  
Start the engine of the vehicle supply-  
ing the current and run it at a moderate  
speed.  
Connect the negative cable B to the  
terminal 4 ( – ) of the battery supply-  
ing the current then to the metal cable 2  
( – ) of the discharged battery.  
Check that there is no con-  
tact between leads A and B  
and that the positive lead A  
is not touching any metal  
parts on the vehicle supplying the  
current.  
Start the engine, and as soon as it starts  
running, disconnect cables A and B in  
reverse order ( 2 - 4 - 5 - 3).  
Risk of injury and/or damage to  
the vehicle.  
5.31  

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