Mercedes-Benz EQA 2022, Owner'S Manual

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Do not stand over the battery.
&
WARNING Risk of explosion from a frozen
battery
A discharged battery may freeze at tempera-
tures slightly above or below freezing point.
During starting assistance or battery charging,
battery gas can be released.
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Always allow a battery to thaw before
charging it or performing starting assis-
tance.
If the indicator/warning lamps in the instrument
cluster do not light up at low temperatures, it is
very likely that the discharged battery has frozen.
In this case you may neither jump-start the vehi-
cle nor charge the battery.
The service life of a battery that has been thawed
may be dramatically shortened. The starting char-
acteristics may be impaired, especially at low
temperatures.
It is recommended that you have a thawed battery
checked at a qualified specialist workshop.
* NOTE Damage caused by numerous or
extended attempts to start the engine
Numerous or extended attempts to start the
engine may damage the catalytic converter
due to non-combusted fuel.
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Avoid numerous and extended attempts
to start the engine.
Observe the following points during starting assis-
tance and when charging the battery:
R
Only use undamaged jump lead/charging
cables with a sufficient cross-section and
insulated terminal clamps.
R
Non-insulated parts of the terminal clamps
must not come into contact with other metal
parts while the jump lead/charging cable is
connected to the battery/jump-start connec-
tion point.
R
The jump lead/charging cable must not come
into contact with any parts which may move
when the engine is running.
R
Always make sure that neither you nor the bat-
tery is electrostatically charged.
R
Keep away from fire and naked flames.
R
Do not lean over the battery.
Observe the additional following points when
charging the battery:
R
Only use battery chargers tested and
approved for Mercedes-Benz.
R
Read the battery charger's operating instruc-
tions before charging the battery.
Observe the additional following points during
starting assistance:
R
For starting assistance, only use batteries with
a nominal voltage of 12 V.
R
The vehicles must not touch.
R
Petrol engine: only accept starting assistance
if the engine and exhaust system are cold.
Starting assistance and charging the 12 V battery
Requirements:
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The vehicle is secured with the electric park-
ing brake.
Breakdown assistance 371