User Manual - Page 340

For LEON 2021.

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Practical tips
W
ear eye protection. Protect your eyes,
skin and clothing from acid and particles
containing lead.
Battery acid is extremely corrosive. Wear
protective gloves and eye protection. Do
not tilt the batteries. This could spill acid
through the vents.
Neutralise any electrolyte splashes on
the skin, eyes or clothing with a soapy solu-
tion, and rinse off with plenty of water. If
acid is swallowed by mistake, consult a
doctor immediately.
Fires, sparks, open flames and smoking
are prohibited. When handling cables and
electrical equipment, avoid causing sparks
and electrostatic charge. Never short the
battery terminals. High-energy sparks can
cause injury.
A highly explosive mixture of gases is re-
leased when the battery is under charge.
The batteries should be charged in a well-
ventilated room only.
Keep children away from acid and bat-
teries.
Before working on the electrical system,
you must switch off the engine, the ignition
and all electrical devices. The negative ca-
ble on the battery must be disconnected.
When a light bulb is changed, you need on-
ly switch off the light.
Deactivate the anti-theft alarm by un-
locking the vehicle before you disconnect
the battery! The alarm will otherwise be
trigger
ed.
When disconnecting the battery from the
vehicle on-board network, disconnect first
the negative cable and then the positive
cable.
Switch off all electrical devices before
reconnecting the battery. Reconnect first
the positive cable and then the negative
cable. Never reverse the polarity of the
connections. This could cause an electrical
fire.
Never charge a frozen battery, or one
which has thawed. This could result in ex-
plosions and chemical burns. Always re-
place a battery which has frozen. A flat
battery can also freeze at temperatures
close to 0°C (+32°F).
Ensure that the vent hose is always con-
nected to the battery.
Never use a defective battery. This could
cause an explosion. Replace a damaged
battery immediately.
CAUTION
Do not e
xpose the battery to direct sun-
light over a long period of time, as the in-
tense ultraviolet radiation can damage the
battery housing.
If the vehicle is left standing in cold con-
ditions for a long period, protect the bat-
tery from “freezing”. If it freezes it will be
damaged.
Control lamp
The control lamp lights up when the igni-
tion is s
witched on. It should go out when the
engine has started running.
Indicator lamps and driver messages on the
instrument cluster display or infotainment
system:
Defective alternator
3 Valid only for: conventional vehicles.
The control lamp lights up RED.
The vehicle battery stops charging from the
alternator. You should immediately drive to
the nearest specialised workshop.
You should avoid using electrical equipment
that is not absolutely necessary because this
will drain the battery.
Error: the 12 V vehicle battery
is not charging. Park safely!
The control lamp lights up RED.
Stop driving! Stop the vehicle at the next
opportunity and in a safe place.
The instrument cluster displays a message
due to a DCDC failure (electrical, mechani-
cal or energy balance).
Switch the ignition off and seek professional
assist
ance.
338
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