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  • E-Class
  • Estate
  • 09/2018
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Starting the charging process
DANGER Risk of fatal injury when charging with a damaged socket

The charging process involves high voltage. If the charging cable, vehicle socket or mains socket is damaged, you could suffer an electric shock.

Only use an undamaged charging cable.
Avoid mechanical damage, e.g. caused by squashing, shearing or driving over the cable.
Have a damaged vehicle socket replaced at a qualified specialist workshop as soon as possible.
Never connect the charging cable to a damaged vehicle socket.
NOTE Overvoltage in the mains supply can damage the vehicle.

The vehicle is therefore equipped with a device which protects it from overvoltage in the mains supply. This protection device may be triggered during severe thunderstorms, for example, and may cause the building protection system to trip or may interrupt the charging process. These functions help to protect the vehicle.

After the building protection system has been switched on again, the charging process resumes automatically.

Following an interruption in the power supply without the building protection system being tripped, it may take up to 10 minutes for charging to resume automatically.

NOTE Heat generated by the charging cable and charging cable connector

During the charging process, the charging cable and charging cable connector may heat up within permissible limit values.

The permissible limit values are observed provided that:

  • The mains power supply equipment and the charging cable are not damaged.

  • The instructions for handling the charging cable and controls on the charging cable have been followed.

If the charging cable or charging cable connector becomes too hot, have the mains power supply equipment checked.
NOTE Damaged or dirty vehicle socket
Always keep the socket cap and the socket flap closed when there is no charging cable connected. This protects the vehicle socket from dirt and damage.
Make sure that the socket cap is closed correctly before closing the socket flap. Otherwise, the socket cap could become wedged, thereby preventing the socket flap from being opened again.
Requirements:

  • The transmission is in position .

  • The ignition is switched off

  • The vehicle is unlocked.

  • The charging cable is not taut.

Depending on the national version, the vehicle is equipped with one of the following vehicle sockets.

Type 1 vehicle socket
Press socket flap .

Socket flap swings open.

Press catch to the left.

Socket cover is open.

Charging at a mains socket (mode 2):
insert the mains plug into the mains socket of the external power source to the stop.
Set the maximum charging current if required.
Insert the charging cable connector into vehicle socket to the stop.

Make sure that the charging cable is not taut when inserted.

Indicator lamp first flashes orange and then green as soon as the high-voltage battery is being charged.

Charging at a wallbox/charging station (mode 3):
insert the charging cable connector into vehicle socket to the stop.

Make sure that the charging cable is not taut when inserted.

Indicator lamp first flashes orange and then green as soon as the high-voltage battery is being charged.

If the charging cable is connected to the vehicle, the engine cannot be started and the vehicle cannot be moved.

At the start of the charging process, the charging side is shown in the instrument cluster with a charging prediction. The charging prediction either refers to the predicted charge level at the set departure time, or the time at which the high-voltage battery will be fully charged.

Type 2 vehicle socket
Press socket flap .

Socket flap swings open.

The indicator lamp lights up.

Press catch to the left.

Socket cover is open.

Charging at a mains socket (mode 2):
insert the mains plug into the mains socket of the external power source to the stop.
Set the maximum charging current if required.
Insert the charging cable connector into vehicle socket to the stop.

Make sure that the charging cable is not taut when inserted.

The indicator lamp first flashes orange and then green as soon as the high-voltage battery is being charged.

Charging at a wallbox/charging station (mode 3) without pre-installed cable:
insert the charging cable connector into vehicle socket to the stop.
Insert the charging cable connector into the socket of the wallbox to the stop.

Make sure that the charging cable is not taut when inserted.

The indicator lamp first flashes orange and then green as soon as the high-voltage battery is being charged.

If the charging cable is connected to the vehicle, the drive system cannot be started and the vehicle cannot be moved.

Observe any information which may be displayed in the instrument cluster:

  • Charging side display

  • Display messages

At the start of the charging process, the charging side is shown in the instrument cluster with a charging prediction. The charging prediction either refers to the predicted charge level at the set departure time, or the time at which the high-voltage battery will be fully charged.

Depending on the temperature, the fan and battery cooling system may audibly switch on during the charging process.

If necessary, the high-voltage battery is automatically recharged, while the charging cable is connected to the vehicle.

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