Mercedes-Benz E-Class Cabriolet 2018, Owner'S Manual

Page: 394 / 553

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Slide cover 1 of positive clamp 2 on the
jump-starting connection point in the direc‐
tion of the arrow.
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Connect positive clamp 2 on your vehicle to
the positive pole of the donor battery using
the jump lead/charging cable. Always begin
with positive clamp 2 on your own vehicle
first.
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During starting assistance: start the
engine of the donor vehicle and run at idle
speed.
#
Connect the negative pole of the donor bat‐
tery and earth point 3 of your own vehicle
by using the jump lead/charging cable. Begin
with the donor battery first.
#
During starting assistance: start the
engine of your own vehicle.
#
During the charging process: start the
charging process.
#
During starting assistance: let the engines
run for several minutes.
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During starting assistance: before discon‐
necting the jump lead, switch on an electrical
consumer in your own vehicle, e.g. the rear
window heater or lighting.
When the starting assistance/charging process
is complete, perform the following steps:
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First, remove the jump lead/charging cable
from earth point 3 and the negative pole of
the donor battery, then from positive clamp
2 and the positive pole of the donor bat‐
tery. Begin each time with the contacts on
your own vehicle first.
#
After removing the jump lead/charging
cable, close cover 1 of positive clamp 2 .
Further information can be obtained at a quali‐
fied specialist workshop.
Replacing the 12 V battery
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Observe the notes on the 12 V battery
(
→
page 386).
Mercedes-Benz recommends that you have the
12 V battery replaced at a qualified specialist
workshop, e.g. at a Mercedes-Benz Service
Centre.
Observe the following notes if you want to
replace the battery yourself:
R
Always replace a faulty battery with a battery
which meets the specific vehicle require‐
ments.
The vehicle is equipped with an AGM technol‐
ogy battery (Absorbent Glass Mat) or a lith‐
ium-ion battery. Full vehicle functionality is
Breakdown assistance 391