Checking the electrolyte level of the
vehicle battery
Fig. 248
In the engine compartment: remove
the lid from the vehicle's battery.
In the engine compartment: lift off
Fig. 249
the cover from the vehicle's battery.
Read the additional information carefully
›››
page 41
The battery's electrolyte level should be
checked regularly in high-mileage vehicles,
Checking and refilling levels
in hot countries and in older batteries. Other
batteries do not require maintenance.
›››
Start-Stop systems (
page
207) are equip-
ped with a special battery labelled "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 269
›››
Open the bonnet
page
269.
●
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
in the direction of the arrow and pull the
A
cover upwards.
●
In the case of a cover: fold the cover to one
›››
side to remove
Fig.
249.
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 in-
Necessary operations
dicator
The electrolyte level of the vehicle's bat-
Light yellow
tery is too low. Have the battery checked
or Colourless
and, where applicable, replaced by a
specialised workshop.
The electrolyte level of the vehicle's bat-
Black
tery is correct.
WARNING
Working with the vehicle battery involves a
risk of corrosion, explosions or electric
shock.
Never tilt the vehicle battery. Battery acid
●
could spill out of the openings for the release
of gases and cause corrosion damage.
›››
Fig. 248
Never open the vehicle battery.
●
●
If battery acid splashes on you, immediate-
ly 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.
Charging, replacing and connecting or
disconnecting the battery
Charging the battery
The vehicle battery should be charged by a
specialised workshop only, as batteries us-
ing special technology have been installed
»
283