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High-voltage system - General information - Edition 02.2021
Assessment criteria
Meaning
Is the high-voltage battery accessible for temperature
measurements (e.g. high-voltage battery accessible
due to missing or damaged body parts) and is the
surface temperature of the high-voltage battery high‐
er than 80°C?
Note
Use temperature gauge -VAS 6886- to measure temperature.
a) Observe the following measures in the event of “BEWARE! HAZARD”:
Maintain a safe distance and keep the vehicle/battery under observation.
Have fire extinguishing equipment ready and at the first sign of fire notify the fire service immediately and, if
necessary, evacuate the building.
Do not inhale smoke/gas.
If the high-voltage battery has suffered mechanical damage with exposed, accessible contacts and conduc‐
tors, do not touch the vehicle or the high-voltage battery.
If possible, quarantine the vehicle/battery.
Cordon off a wide area around the vehicle and inform the responsible high-voltage expert (HVE) or the
importer.
b) If the accident-damaged high-voltage vehicle is deemed
to be non-hazardous based on the assessment criteria, the
following steps must be taken:
Run the test program in “Guided Functions” for classifying/as‐
sessing the condition of the lithium-ion high-voltage battery
using ⇒ Vehicle diagnostic tester.
Follow the instructions in the test program.
For a detailed description, refer to the respective workshop
manual or instructions.
Note
♦ Perform the work steps outside the workshop or in a suitable
area if possible.
♦ It may be necessary to repair the 12V onboard electrical
system before a diagnosis can be carried out.
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Rep. gr.93 - Electric drive systems
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