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Valid for conventional vehicles:
›››
●
Raise the bonnet
engine compartment on
●
Lift the cover that protects the front of the
battery.
Valid for hybrid vehicles (PHEV):
●
Open the luggage compartment.
●
Raise the floor of the luggage compartment
›››
page 278
to gain access to the 12-volt bat-
›››
tery cover
Fig. 225.
●
A suitable tool must be used to open and
close the cover.
Check the level
The electrolyte level should be checked regu-
larly in high-mileage vehicles, in hot countries
and in older batteries.
●
Check the colour display in the sight glass on
›››
the top of the battery
●
If there are air bubbles in the window, tap
the window gently until they disperse.
The "magic eye" indicator, located on the top
of the battery changes colour, depending on
the charge state and electrolyte level of the
battery.
There are two different colours:
Yellow or colourless:
The battery's electrolyte
level is too low. Go to a specialised work-
shop to have the battery checked and re-
placed if necessary.
330
Checking and refilling levels
Black:
rect.
in Working in the
page 316.
Charging, replacing, disconnecting
and connecting the 12-volt battery
If you suspect that the 12-volt battery is dam-
aged or defective, have it checked by a quali-
fied specialist workshop.
Charging the 12-volt battery
Contact a specialist workshop for charging the
12-volt battery, as the battery model fitted in
the vehicle in the factory uses a technology
that requires limited voltage charging
To do so, CUPRA recommends going to a spe-
cialised CUPRA dealer or any SEAT dealership.
Replacing the 12-volt battery
The 12-volt vehicle battery has been designed
Fig. 225.
to suit its location and has special safety fea-
tures. If a 12 volt battery needs to be replaced,
the replacement battery must be installed by
a qualified technician. CUPRA recommends
that you visit a CUPRA dealer. Component in-
formation regarding size, maintenance, power
and safety characteristics to be met can be ob-
tained from a qualified technician, who should
have the necessary documentation and tech-
nical equipment. CUPRA recommends visiting
a specialised CUPRA dealer or any SEAT deal-
ership.
The battery's electrolyte level is cor-
›››
The degassing hole of the 12 volt battery must
always be on side of the negative pole. The
degassing hole on the side of the positive pole
must always be sealed.
Only use maintenance-free 12 volt batteries
that comply with the TL 825 06 and VW 7 50 73
standards. These standards must be dated Oc-
tober 2014 or later.
The 12 volt battery must always be replaced
by a qualified technician, as the vehicle's elec-
tronic system must also be adjusted as part
of the replacement. In addition, the battery
parameters relating to operational safety can
only be determined with the original battery.
Only a qualified technician has both the right
.
technology to make the adjustment and the
correct replacement batteries.
The use of unsuitable batteries will invalidate
the approval.
Vehicles with Start-Stop functions (
›››
page 156) are fitted with a special battery.
Therefore, it must only be replaced with a bat-
tery of the same specifications.
Disconnecting the 12-volt battery
If the 12 volt battery is to be disconnected from
the vehicle's electrical system, please note the
following:
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