battery VOLKSWAGEN ID.4 2020 Owner´s Manual

WARNING
Improper use of the sockets and electrical
accessories can cause fires and se vere inju-
ries.
x Never leave children unsupervised in the
vehicle. Sockets and the devices connec-
ted to them can be used when the igni-
tion is switched on.
x If the electrical device gets too hot,
switch off the device immediately and
disconnect it from the socket. NOTICE
x In order to pre
vent damage to the electri-
cal system, never connect equipment that
supplies electric power, such as solar pan-
els or battery chargers for charging the
12-volt battery, to the 12-volt socket.
x Use only electrical devices that have been
approved in accordance with current
guidelines concerning electromagnetic
compatibility.
x In order to avoid damage due to voltage
fluctuations, always switch off any electri-
cal devices before switching the ignition
on or off and before activating the vehi-
cle

x
Damage to the v ehicle or to the high-
voltage battery could lead to a leak of
toxic gases or fluids, either immediately
or at a later time. These emitted gases
could also potentially cause a fire. Do
not inhale these gases.
x Never touch the fluids that leak from the
high-voltage battery.
x In the event of a fire, move away from
the hazard area and call the fire service.
x Always inform any attending fire and
emergency services that the vehicle is
fitted with a high-voltage battery. WARNING
Unqualified work on the high-voltage sys-
tem and on high-
voltage components can
lead to malfunctions, accidents and inju-
ries.
x Any work on the high-voltage system
must be carried out only by authorised
qualified workshops with corresponding
approval for this work. NOTICE
After an accident, or after the underside of
the v
ehicle has struck an obstacle, the high-
voltage battery must be checked by appropri-
ately qualified and trained experts. Warning signs for the high-
v

oltage system Please refer to , and at the start
of the chapter on page 273.
Where can warning signs be located?
The f

ollowing components may be marked
with the illustrated warning signs

Fig. 141
Warning sign on high- voltage battery.1
High voltages can cause serious injuries
or death. Ne

ver touch the battery termi-
nals with your fingers, tools, jewellery or
any metal objects. 2
The high-voltage battery contains dan-
gerous liquid and solid substances. Seri-
ous chemical burns and blindness can be
caused if it outgasses. Suitable eye pro-
tection and protectiv

e clothing should
always be worn when performing work
on the high-voltage battery to prevent the battery fluid coming in contact with
skin and eyes. If skin or eyes come into
contact with battery fluid, rinse the af-
fected areas with clean flowing water
for at least 15 minutes and seek a doctor
immediately. 3
The high-voltage battery can burn. The
high-
voltage battery must never be ex-
posed to fire, sparks or naked flames. Al-
ways handle the high-voltage battery
with care to avoid damage and fluid
leaks. 4
Always keep children away from the
high-

voltage battery. 5
You will find further information and
warnings in the owner

Handling the high-voltage
battery
Care instructions
V
olkswagen recommends observing the fol-
lowing care instructions:

Upper battery charge limit
F
ull charging of the high-voltage battery is
not normally necessary in daily vehicle use.
The upper battery charge limit limits the
maximum charge level.

WARNING
Driving when the charge level of the high-
v oltage battery is too low can lead to the
vehicle breaking down when in traffic, and
can lead to accidents and serious injuries. The high-voltage battery can only be
charged at charging stations that meet
the requirements of the corresponding coun-
try and at least the f

ollowing standards:

x
Ne ver charge a 12-volt vehicle battery
which is frozen or has been frozen. Dis-
charged 12-volt vehicle batteries can al-
ready freeze at temperatures of around
0

1
Vehicle with discharged 12-volt vehicle
battery that is being jump-started. 2
Vehicle with 12-volt vehicle battery that
is supplying power and jump-starting
the other v
ehicle. 3
Suitable earth connection: jump-start
connection point. NOTICE
Observe the instructions for jump starting in
the owner

x
All work on the 12- volt vehicle battery
and the electrical system can cause seri-
ous chemical burns, fire or electric
shocks. Always read the warnings and
safety information before carrying out
any kind of work on the 12-volt vehicle
battery

x
The refilled brake fluid must be new. WARNING
Brake fluid is toxic.
x In order to reduce the risk of poisoning,
ne
ver use bottles or other containers to
store brake fluid. There is always a risk
of someone drinking from such contain-
ers, even if they are labelled appropri-
ately.
x Brake fluid must always be stored in its
original sealed container and kept out of
the reach of children. NOTICE
Brake fluid that has leaked or been spilt can
damage the v
ehicle paintwork, plastic parts
and tyres. Wipe off brake fluid that has
leaked or been spilled immediately from all
parts of the vehicle. Brake fluid can pollute the environ-
ment. Any spilt service fluids must be
cleaned up and disposed of properly. 12-volt vehicle battery
Introduction to the topic
The 12-
volt vehicle battery is a component of
the electrical system and in event of the
high-voltage system failing, supplies the
safety-relevant systems of the vehicle with
energy. In the scope of maintenance work,
the 12-volt vehicle battery is checked and
where required, replaced.
You should only carry out work on the electri-
cal system if you know exactly how to per-
form the required tasks, are aware of the
general safety procedures and have access to
the correct equipment, service fluids and
suitable tools. Failing to carry out work cor-
rectly can cause serious injuries