Practical tips
work. Get the electrical system checked by a
pr
of
essional.
Error: 12-volt vehicle battery
diagnosis. Visit a workshop.
●
The indicator lamp lights up yellow. The
system that controls the 12-volt vehicle bat-
tery does not work. Get the electrical system
checked by a professional.
Checking the battery electrolyte level
Fig. 210 Sight glass on the top of the 12 volt bat-
tery (schematic representation).
The electrolyte level should be checked reg-
ularly in high-mile
ag
e vehicles, in hot coun-
tries and in older batteries.
●
Open the bonnet and then lift the cover
that protects the front part of the battery
›››
in Working in the engine compart-
ment on pag
e 319
.
●
Check the colour display in the "magic eye"
on the top of the battery.
●
If there are air bubbles in the window, tap
the window gently until they disperse.
The position of the battery is shown in the
corresponding engine compartment dia-
gram
›››
page 322 .
The “magic eye” indicator, located on the
top of the battery changes colour, depend-
ing on the charge state and electrolyte level
of the battery.
There are two different colours:
The battery's electro-
lyte level is too low. Go to a specialised
workshop to have the battery checked
and replaced if necessary.
The battery’s electrolyte level is cor-
rect.
Yellow or colourless:
Black:
Checking the battery electrolyte level
3 Valid for vehicles: plug-in hybrid (PHEV)
Fig. 211
Location of the battery in the luggage
compartment
Installation and removal of the 12-volt bat-
t
ery co
ver
●
Open the rear lid.
●
The 12-volt vehicle battery is located under
the luggage compartment floor.
●
Raise the luggage compartment floor
›››
page 136 to gain access to the 12-volt bat-
tery cover
›››
Fig. 211 .
Opening the 12-volt battery cover
A suitable tool must be used to open and
close the cover.
332
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