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Practical tips
Checking the electrolyte level of
the v
ehicl
e batt
ery
Fig. 298
In the engine compartment: remove
the lid fr
om the v
ehicl
e's battery.
Fig. 299
In the engine compartment: remove
the lid fr
om the v
ehicl
e's battery.
Read the additional information carefully
›
›
›
page 43
The battery's electrolyte level should be
checked regularly in high-mileage vehicles, in
hot countries and in older batteries. Other
batteries do not require maintenance.
Vehicles with a Start-Stop system
(
›››
page 259) are equipped with a special
battery marked with the letters “AGM”. For
technical reasons, it is not possible to check
the electrolyte level of these batteries
Preparations
●
Prepare the vehicle for work in the engine
compartment
›››
page 323
●
Open the bonnet
›››
page 323.
Opening the battery cover
The battery covers are different depending
on the engine size of the vehicle:
●
In the case of a lid: press the tab
›››
Fig. 298
A
in the direction of the arrow
and pull the co
v
er up
wards.
●
In the case of a cover: remove the cover by
pulling it to the side
›››
Fig. 299.
Checking the battery electrolyte level
●
Make sure there is sufficient lighting to
clearly recognise the colours. Never use
flames or flashing objects as a light source.
●
Depending on the level of acid, the Magic
eye on the top of the battery will change col-
our.
Colour indi-
cator
Necessary operations
Light yell
ow or
Colourless
The el
ectrolyte level of the vehi-
cle's batt
ery is too low. Have the
battery checked and, where appli-
cable, replaced by a specialised
workshop.
Black
The electrolyte level of the vehi-
cle's batt
ery is correct.
WARNING
Working with the vehicle battery involves a
risk of corrosion, expl
osions or electric
shock.
●
Never tilt the vehicle battery. Battery
acid could spill out of the openings for the
release of gases and cause corrosion dam-
age.
●
Never open the vehicle battery.
●
If battery acid splashes on you, immedi-
ately rinse your eyes and skin abundantly
with water for several minutes. Then seek
medical care immediately.
●
If acid is swallowed by mistake, consult a
doctor immediately.
336
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