Mercedes-Benz E-Class Coupe 2020, Owner'S Manual

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Observe the additional following points during
starting assistance:
R
Starting assistance may only be provided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12 V.
R
The vehicles must not touch.
R
Vehicles with a petrol engine: jump-start
the vehicle only when the engine and exhaust
system are cold.
Starting assistance and charging the 12 V
battery
Requirements:
R
The vehicle is secured with the electric park‐
ing brake.
R
Vehicles with automatic transmission: the
transmission is in position j .
R
The ignition and all electrical consumers are
switched off.
R
The bonnet is open.
Example: engine compartment
#
Slide cover 1 of positive clamp 2 on the
jump-starting connection point in the direc‐
tion of the arrow.
#
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.
#
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.
#
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:
Breakdown assistance 321