High-voltage battery
Safety instructions
Introduction
DANGER
The components of the high-voltage system are under high electrical voltage. Contact with live components of the high-voltage system causes burns, serious
injuries or fatal electric shock.
Always assume that the high-voltage battery is fully charged and that all the high-voltage components are live. This may be the case even if the ignition is
switched off.
Never touch high-voltage components or orange high-voltage cables. Damage to high-voltage components is not always obvious.
Never remove the orange high-voltage cables and never damage or modify them.
Never disconnect the high-voltage cable from the high-voltage system.
Never open or modify the cover of the high-voltage battery and never remove it.
Never perform repair and maintenance procedures on orange high-voltage cables or high-voltage components. Always have work on the high-voltage
system performed by a suitably qualified authorized Volkswagen dealer or authorized Volkswagen Service Facility approved for this work. Volkswagen
recommends contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
Never perform any work in the vicinity of high-voltage components or high-voltage cables using cutting, shaping, or sharp-edged tools or heat sources.
DANGER
Any damage to the vehicle or high-voltage battery may result in the immediate or delayed escape of poisonous gases or liquids. The escaping gases may cause
a fire. There is a risk of serious or fatal injuries.
Do not breathe in gases leaking out of the high-voltage battery.
Never touch liquids leaking from the high-voltage battery.
If a fire breaks out, leave the danger zone with all vehicle occupants and contact the fire department.
Always let the fire service and emergency responders know that your vehicle is equipped with a high-voltage battery.
NOTICE
The high-voltage battery can be damaged by an accident or if the vehicle runs into an obstacle.
Have your high-voltage battery checked by fully qualified professionals after an accident or if the vehicle runs into an obstacle. Volkswagen recommends
contacting an authorized Volkswagen dealer or authorized Volkswagen Service Facility.
If the high-voltage system has been switched off, secure the vehicle and obtain professional assistance. The vehicle is no longer ready to drive.
Warning signs for the high-voltage system
Please read the introductory information and heed the Warnings and Notice ⇒
and Introduction.
Where can warning signs be attached?
Covers and caps behind which there are high-voltage components.
All high-voltage components, including the high-voltage battery.
Under the hood.
Warning signs
The following illustrations may differ slightly from the warning signs on the vehicle.
247
Fig. 125 Warning sign on the battery charger and other high-voltage components.
Fig. 126 Warning sign in the hood space.
These warning signs indicate a high electrical voltage fig. 125, fig. 126.
Fig. 127 Warning sign on the battery charger.
This warning sign fig. 127 indicates that parts of the high-voltage system can become very hot and must not be touched.
248
Fig. 128 Warning sign on the high-voltage battery.
Exposure to high voltages can result in serious injury or even death. Never touch the battery terminals with your fingers or with tools, or allow jewelry or other
metal items in contact with your body to touch the battery terminals.
The high-voltage battery contains hazardous liquids and solids. Escaping gas can cause serious chemical burns and could blind you. When working on the
high-voltage battery, always wear suitable protective eyewear and protective clothing to prevent battery fluid from coming into contact with your skin and eyes.
If battery fluid does come into contact with your skin or eyes, run clean water over the affected areas for at least 15 minutes and seek medical attention
immediately.
Under certain circumstances, the high-voltage battery can catch fire. Never expose the high-voltage battery to fire, sparks or naked flames. To prevent damage
and fluid leakage, always handle the high-voltage battery with care.
Keep children away from the high-voltage battery at all times.
Further information and warnings can be found in the Owner's Manual and in the workshop information.
Improper handling of the high-voltage battery can result in serious injury or even death. Never remove the cover from the high-voltage battery and never
disassemble the high-voltage battery.
Improper handling of the high-voltage battery can result in serious injury or even death. Have all maintenance procedures on the high-voltage battery
performed by fully qualified professionals. Never modify the high-voltage battery. When the high-voltage battery is open, do not allow it to come into contact
with water or other liquids. Liquids can cause short-circuiting, electric shock and burns.
Charging the high-voltage battery
Introduction
Requirements
Vehicle's drive system is deactivated.
Charging cable and charging infrastructure are working correctly and have been checked ⇒
.
Types of charging
AC (alternating current) charging at a charging station or wall box ⇒ Charging.
It is charged with a high charging power. The maximum achievable charging power results from the charging station used, the charging cable used and the
equipment of the battery charger.
AC (alternating current) charging at a mains socket ⇒ Charging.
The household's electrical installation must be checked and must be working correctly ⇒
DC (Direct Current) Charging at the Charging Station or Wall Box ⇒ Charging:
. Plenty of charging time should be scheduled in, e.g. overnight.
It is charged with a very high charging power. This significantly reduces the charging time. Please read the notes on frequent charging with direct current (DC)
⇒
.
249
2024 VW ID.4 Owner's Manual
