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342
Checking and r
efilling levels
Yellow or colourless:
Black:
NOTICE
Do not expose the 12-volt battery to direct
sunlight f
or a prolonged period of time.
●
Ultraviolet rays can damage the battery
casing.
NOTICE
If the vehicle is not to be used for a long pe-
riod of time
, protect the 12-volt battery from
frost.
●
The battery may freeze and, as a result,
suer irreparable damage.
Note
After starting the engine with a deeply dis-
char
ged or newly replaced 12-volt battery,
or after a jump start, some system settings
(time, date, personalised comfort settings
and programs) may be incorrectly set or de-
leted. Check and correct these settings once
the battery is suciently charged.
Note
During the winter, the starting power may
be r
educed, and if necessary, the battery
should be charged.
Check the electrolyte level
Fig.243 Hybrid v
ehicles (PHEV): location of
the battery in the luggage compartment
Fig.244 Sight gl
ass on the top of the 12 volt
battery (schematic representation).
Access to the 12 volt battery
The 12-v
olt battery is located in the engine
compartment (conventional vehicles) or under
the luggage compartment floor (PHEV hybrid
vehicles).
Valid for conventional vehicles:
●
Raise the bonnet ›››
in W
orking in the
engine compartment on page329.
●
Lift the cover that protects the front of the
battery.
Valid for hybrid vehicles (PHEV):
●
Open the luggage compartment.
●
The 12V battery is located inside the left side
compartment ›››Fig.243.
●
Remove the side trim cover to gain access to
the 12V battery.
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 ›››Fig.244.
●
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 dierent colours:
The battery's electrolyte
level is too low. Go to a specialised work-
shop to have the battery checked and re-
placed if necessary.
The battery’s electrolyte level is correct.
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