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342
Checking and r
efilling levels
5
All maintenance works involving the 48 volt
batt
ery should only be performed by duly
qualified and trained technical sta .
6
Take care when handling flammabl
e sub-
stances.
In addition to a 12-volt battery, the vehicle may
be fitted with a 48-volt battery located under-
neath the front passenger seat.
The works that are to be carried out on the
48 volt battery should be performed exclusively
by a specialised workshop with duly qualified
technical sta, trained according to the SEAT
guidelines.
Overview of the 48 volt system
The 48 volt system consists of the following
components, among others:
●
48-volt battery
●
12V/48V voltage converter
●
48 volt alternator/starter motor
●
Purple 48 volt cables
48 volt battery warnings
There is a hazard warning sign on the 48 volt
battery ›››Fig.231.
WARNING
An inappropriate handling of the 48 volt bat-
t
ery can cause serious injuries or death.
●
All maintenance works involving the 48 volt
battery should only be performed by duly
qualified and trained technical sta .
●
Never make any changes to the 48 volt
battery.
WARNING
Make sure the 48 volt battery does not come
int
o contact with water or other fluids.
●
Liquids may cause short circuits, electrical
shocks and burns.
Troubleshooting
✓ Valid for: Mild Hybrid vehicles
Indicator lamps and driver messages on the in-
strument cluster display or infotainment system:
48 volt battery
The indicat
or lamp lights up red while driving.
The following message is displayed:
Error: 48V electrical system. Stop
safely! Check the manual.
The charge level of the 48 volt battery is too
low.
●
Park the vehicle in a safe place.
●
Switch o the ignition and w
ait for 3 seconds.
●
Switch ignition back on.
●
The indicator lamp lights up yellow.
●
Leave the engine running with the vehicle
st
opped until the warning lamp switches o.
●
Start driving when all the warning lamps have
switched o.
If the yellow warning lamp does not switch
o within 3 minutes, seek professional assis-
tance.
48 volt battery
The w
arning lamp lights up yellow when the
vehicle is stopped. The following message is
displayed:
Error: 48V electrical system. Do
not start driving. Check the man-
ual.
The charge level of the 48 volt battery is too
low.
●
Do not start driving.
●
Leave the engine running with the vehicle
st
opped until the warning lamp switches o.
●
Start driving when all the warning lamps have
switched o.
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