Get Driving and parking -> Charging the high-voltage battery (plug-in hybrid) Guide for Mercedes GLA SUV Second Generation (2020-2026)

Relling AdBlue

Mercedes-Benz recommends that you top up

AdBlue

at a pump. If no AdBlue

pump is availa-

ble, you can also top up AdBlue

with a canister.

Screw on the fastener of AdBlue

rell canis-

ter 4.

Screw disposable hose 3 onto the opening

of AdBlue

rell canister

4 until hand-tight.

Screw disposable hose 3 onto the ller neck

of the vehicle until hand-tight.

Li up and tip AdBlue

rell canister 4.

The lling process stops when the AdBlue

container is completely full.

AdBlue

rell canister

4 can be removed

when it has been only partially emptied.

Unscrew and close disposable hose 3 and

AdBlue

rell canister

4 in reverse order.

Replace the AdBlue ller cap

2 and turn it

clockwise until it audibly engages.

Close fuel ller ap 1.

Switch on the vehicle for at least 60 seconds.

If it was no longer possible to start the vehicle

due to the empty AdBlue

tank, it takes up to

60 seconds for topping up to be detected.

Start the vehicle.

Avoid storing AdBlue

rell containers perma-

nently in the vehicle.

Charging the high-voltage battery (plug-in

hybrid)

Notes on charging the high-voltage battery

DANGER Risk of fatal injuries in case of

improper handling of the Flexible Charging

System Pro

If you use the Flexible Charing System Pro

improperly, this may result e.g. in res or an

electric shock.

Observe the notes in the Owner's Man-

ual for the Flexible Charging Systems

Pro. Otherwise risks may not be detec-

ted.

NOTE High-voltage battery damage due to

leaving the vehicle idle for lengthy periods

of time

Lithium-ion batteries experience a natural self-

discharge.

Exhaustive discharging can therefore occur if

the vehicle is idle for several months. This can

damage the high-voltage battery.

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To avoid damage, please observe the fol-

lowing recommendations when handling

the high-voltage battery.

NOTE Accelerated ageing of the high-volt-

age battery due to not observing the fol-

lowing recommendations

As a result of its basic characteristics, the

storage capacity of and the amount of energy

available from the high-voltage battery decrea-

ses over the course of its life. Due to this, both

the maximum electrical range that can be ach-

ieved by the vehicle and its maximum electri-

cal output can be impaired.

The following factors could accelerate the age-

ing of the high-voltage battery:

a high level of charge, especially if the

vehicle is idle for a lengthy period of time

frequent rapid charging with direct current

(mode 4)

leaving the vehicle idle for lengthy periods

at high ambient temperatures

To avoid accelerated ageing, please

observe the following recommendations

when handling the high-voltage battery.

NOTE Damage to the drive system when

charging the high-voltage battery at

extreme altitudes

The drive system may be damaged if the high-

voltage battery is charged at elevations

greater than 4,000 m above sea level.

It may then no longer be possible to continue

the journey.

Avoid charging processes at extreme

altitudes.

Recommendations when handling the high-voltage

battery:

Rapid-charge the high-voltage battery with

direct current (Mode 4) only when required.

In case of longer downtimes, switch o the

vehicle with a charge status of the high-volt-

age battery between 25 % and 30 %. Do not

permanently connect the high-voltage battery

to a power supply.

If leaving the vehicle idle for lengthy periods,

avoid high outside temperatures wherever

possible.

Every six weeks check the charge level of the

high-voltage battery (/ page 309).

Make sure to charge the high-voltage battery if

the charge level is below 15 %.

Do not disconnect the 12 V battery even if the

vehicle is le unused for a lengthy period. Oth-

erwise the condition of the vehicle's high-volt-

age battery cannot be monitored.

When only using the high-voltage battery with

low states of charge, fully charge the high-volt-

age battery twice a year.

Depending on the charging version, your vehicle is

equipped with one of the following vehicle sock-

ets:

Type 2 for charging with alternating current

(mode 2/3)

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Type Combo 2 for charging with alternating

current (mode 2/3) and charging with direct

current (mode 4)

Example: type Combo 2 vehicle socket

AC charging port type 2

Socket extension for DC charging

When using a CCS charging cable (Combined

Charging System) for charging with direct cur-

rent at a vehicle socket type Combo, both

ports on the vehicle socket 1 and 2 are

used for charging.

Charging options for the high-voltage battery

(mode 2, 3 or 4):

While the vehicle is in motion by means of

recuperation

Stationary alternating current charging:

At a mains socket (mode 2)

at a wallbox or charging station (mode 3)

Stationary DC charging (vehicles with vehicle

socket type Combo 2):

At a rapid-charging station (mode 4)

Depending on the country-specic vehicle equip-

ment and your vehicle's charging cable, single

phase AC charging is also possible.

Observe the dierent grid requirements of your

current location when charging. Only use charging

cables which conform to the grid requirements.

Consult a qualied electrician or your local grid

operator if you have any questions.

It is recommended that you charge the high-volt-

age battery at a wallbox or charging station due to

the improved charging performance and better

charging eciency oered.

System limits

The power output of the high-voltage battery may

be impaired by the following:

high or low outside temperatures

Electrical auxiliary consumers in the vehicle

being switched on, e.g. operating the air con-

ditioning system

extended periods without charging

The charging time or the charging power of the

high-voltage battery may be increased by the fol-

lowing:

high or low outside temperatures

A low or high charge status of the high-voltage

battery

The maximum available charge current of the

charging device

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Stowing the charging cable

Always stow the vehicle's charging cable in the

charging cable bag provided, and secure the

charging cable bag in the boot or load compart-

ment with the included retaining strap. Otherwise,

the charging cable bag with the charging cable is

not suciently secured.

Example: charging cable bag in the boot/load com-

partment

As delivered, charging cable bag

1 with retaining

strap

2 is located in the boot or load compart-

ment. To secure the charging cable bag, the

retaining strap must be attached to tie-down eye

3. Do not use bag hooks to attach the retaining

strap.

Feed the loop end of retaining strap 2

through tie-down eye 3 in the boot or load

compartment.

Feed the end with the snap hook through the

loop of retaining strap 2.

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Tighten retaining strap 2 so that the knot

around tie-down eye

3 is tight and secure.

Hook the snap hook of retaining strap 2 in a

tie-down eye of charging cable bag

Notes on charging the high-voltage battery at a

mains socket (Mode 2)

DANGER Risk of fatal injuries in case of

improper handling of the Flexible Charging

System Pro

If you use the Flexible Charing System Pro

improperly, this may result e.g. in res or an

electric shock.

Observe the notes in the Owner's Man-

ual for the Flexible Charging Systems

Pro. Otherwise risks may not be detec-

ted.

DANGER Risk of fatal injury from incor-

rectly installed component parts

Connecting the charging cable to a mains

socket using incorrectly installed component

parts could cause a re or an electric shock,

for example.

Only connect the charging cable to a

mains socket that:

Has been properly installed and

Has been inspected by a qualied electri-

cian

For safety reasons, only use the charging

cable supplied with the vehicle or an

original Mercedes‑Benz charging cable.

Purchase these parts at a Mercedes-

Benz Service Centre and obtain advice

there.

Mercedes-Benz thoroughly tests these original

charging cables for their suitability for high-

voltage charging of your vehicle.

Never use a damaged charging cable.

Do not use:

Extension cables

Extension reels

Multiple sockets

Never use socket adapters to connect

the charging cable to the mains socket.

The only exception being if the adapter

has been tested and approved by the

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F247 0074 02

manufacturer for charging the high-volt-

age battery of an electric vehicle.

Observe the safety notes in the operat-

ing instructions for the socket adapter.

Only the following charging cables may be used:

The charging cable supplied with the vehicle.

A charging cable that has been approved for

the vehicle.

The charging process can vary depending on the

power supply equipment. The charging times

when charging the high-voltage battery at the

mains socket are considerably longer than when

charging at a wallbox or charging station.

When doing so, always observe the local informa-

tion.

Do not leave the charging cable controls hanging

loose from a mains socket.

Do not li the controls by the following compo-

nent parts:

the charging cable connector

the mains plug

When charging, protect the charging cable control

element from excessive heat such as direct sun-

light. Otherwise the charging process may be

aborted.

Notes on charging the high-voltage battery at a

wallbox or charging station (mode 3)

DANGER Risk of fatal injury from incor-

rectly installed component parts

Connecting the charging cable to a wallbox

using incorrectly installed component parts

could cause a re or an electric shock, for

example.

Only connect the charging cable to a

wallbox that:

Has been properly installed and

Has been inspected by a qualied electri-

cian

For safety reasons, only use charging

cables that have been tested and

approved by the manufacturer for charg-

ing the high-voltage battery in an electric

vehicle.

Never use damaged charging cables.

Do not extend the charging cable.

Do not use adapters.

Observe the safety notes in the operat-

ing instructions for the wallbox.

If charging at a wallbox without pre-installed

cable, use the optionally available charging cable

for wallbox and charging station (mode 3). The

charging cable is stowed in a bag in the boot/

luggage compartment.

Only use charging cables that have been tested

and approved by the manufacturer for charging

the high-voltage battery in an electric vehicle.

DANGER Risk of fatal injury due to dam-

aged components

Connecting the vehicle to a charging station

using damaged component parts could cause

a re or an electric shock, for example.

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Perform a visual check of the charging

station for obvious defects, for example

damage to the housing or charging cable

connection.

Never use damaged charging cables.

Do not use an extension for the charging

cable.

Do not use adapters.

Always observe the safety instructions

on the charging station.

Most charging stations must be activated before

the charging process, e.g. using an RFID card or

via Plug-and-Charge. Observe the on-site opera-

tor's instructions for the charging station and the

notes on Mercedes me Charge (/ page 481).

The amount of energy dispensed for the charging

process, shown by the charging station, may be

higher than the amount of energy actually absor-

bed by the high-voltage battery. This is the result

of dierent levels of charging losses and is descri-

bed as recharge eciency. Charging losses occur,

for example, due to heat that builds up when the

vehicle is charging or from auxiliary consumers

that are switched on. Further information on

recharge eciency can be obtained at a qualied

specialist workshop.

Notes on charging the high-voltage battery at a

rapid charging station (mode 4)

DANGER Risk of fatal injury due to dam-

aged components

Connecting the vehicle to a charging station

using damaged component parts could cause

a re or an electric shock, for example.

Perform a visual check of the charging

station for obvious defects, for example

damage to the housing or charging cable

connection.

Never use damaged charging cables.

Do not use an extension for the charging

cable.

Do not use adapters.

Always observe the safety instructions

on the charging station.

DANGER Risk of fatal injuries when carry-

ing out maintenance work during the

charging process

During the charging process, the high-voltage

on-board electrical system is under high volt-

age.

Do not perform any maintenance work

during the charging process.

Most charging stations must be activated before

the charging process, e.g. using an RFID card or

via Plug-and-Charge. Observe the on-site opera-

tor's instructions for the charging station and the

notes on Mercedes me Charge (/ page 481).

The charging cable for the vehicle must not be

longer than 30 m due to the legal requirements in

some countries. This is to prevent the interfer-

ence of signals being received by radio communi-

cation devices in the vehicle or in close proximity

to the charging station. Be aware that parts of the

charging cable may be routed underground. If in

doubt, ask the charging station operator if this is

the case before charging the high-voltage battery.

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The amount of energy dispensed for the charging

process, shown by the charging station, may be

higher than the amount of energy actually absor-

bed by the high-voltage battery. This is the result

of dierent levels of charging losses and is descri-

bed as recharge eciency. Charging losses occur,

for example, due to heat that builds up when the

vehicle is charging or from auxiliary consumers

that are switched on. Further information on

recharge eciency can be obtained at a qualied

specialist workshop.

Maximum permissible charging current for charg-

ing at a mains socket

DANGER Risk of fatal injuries in case of

improper handling of the Flexible Charging

System Pro

If you use the Flexible Charing System Pro

improperly, this may result e.g. in res or an

electric shock.

Observe the notes in the Owner's Man-

ual for the Flexible Charging Systems

Pro. Otherwise risks may not be detec-

ted.

NOTE Overloading the mains socket due

to excessive charging current

If the charging current is too high, the fuse

could be tripped or the external mains supply

could overheat.

Ensure that the external mains supply

has been designed to handle the charg-

ing current provided.

For safety reasons, only use the charging

cable supplied with the vehicle or an

original Mercedes-Benz charging cable.

Mercedes-Benz thoroughly tests these

original charging cables for their suitabil-

ity for high-voltage charging of your vehi-

cle.

Purchase these parts at a Mercedes-

Benz Service Centre and obtain advice

there.

Check the maximum charging current

using the charging capacity shown in the

driver's display.

The charging cable supplied is set to a country-

specic maximum charging current value. When

charging abroad, the maximum value may exceed

the permitted value for that country.

If you use the Mercedes-Benz Flexible Charging

System Pro, the maximum charge current can be

set country-specically (see Owner's Manual for

the charging system).

Before charging at a mains socket, have the

maximum permissible charging current for the

relevant mains socket or the building checked

by a qualied electrician.

When abroad, observe the country-specic

laws when charging.

If you have questions concerning the charging

current or if there is a malfunction, please contact

a qualied specialist workshop.

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Overview of the charging cable control panel

DANGER Risk of fatal injuries in case of

improper handling of the Flexible Charging

System Pro

If you use the Flexible Charing System Pro

improperly, this may result e.g. in res or an

electric shock.

Observe the notes in the Owner's Man-

ual for the Flexible Charging Systems

Pro. Otherwise risks may not be detec-

ted.

The charging cable control panel of the standard

charging cable described below shows the current

status of the charging process.

Supply voltage indicator

Charging process indicator

Temperature monitor indicator

Safety system indicator

Supply voltage indicator 1

Display Meaning

Lights up white The supply voltage is

connected.

Charging process indicator 2

Display Meaning

Flashes green The high-voltage bat-

tery is charging.

Temperature control indicator 3

Display Meaning

Lights up red The green LED ashes

simultaneously: over-

temperature – the

charging performance

is reduced.

The green LED does

not ash: overtemper-

ature – the charging

process is stopped.

Flashes red Overtemperature at

the mains plug – the

charging process is

stopped.

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Safety system indicator 4

Display Meaning

Flashes red Charging cable mal-

function – cannot

carry out the charging

process, reset the

charging cable control

panel.

Lights up red White LED is o:

power supply malfunc-

tion – cannot carry

out the charging proc-

ess, replace the mains

socket.

White LED is on: vehi-

cle malfunction – can-

not carry out the

charging process,

reset the charging

cable control panel.

When all four displays light up, the charging cable

control panel is performing a self-test.

If the temperature monitor

3 indicates a mal-

function, it may help to protect the charging cable

from direct sunlight.

To reset the charging cable control panel: if safety

system 4 indicates a charging cable malfunction

or a vehicle malfunction, rst reset the charging

cable operating unit. To do this, disconnect the

charging cable from the vehicle and from the

mains socket and wait for approximately ve sec-

onds. If the malfunction persists aer the charg-

ing cable is reconnected, charging at the mains

socket is not possible. The charging cable must

be replaced or the vehicle plug must be checked

at a qualied specialist workshop, depending on

the indicator.

Functions of the indicator lamps on the vehicle

socket

Depending on the national version, your vehi-

cle is equipped with one of the following vehi-

cle sockets.

The socket ap is centrally locked and unlocked

together with the vehicle.

Example: Combo 2 vehicle socket

Socket lamp

Charging process indicator lamp

Locking status indicator lamp

Socket lamp 1 ashes or lights up as with indi-

cator lamps

2 and 3.

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Overview of the locking status

Locking sta-

tus 3

Display Meaning

% Lights up

white

Vehicle

socket

unlocked,

insert or

remove charg-

ing cable

% Flashes white Malfunction

during locking

or unlocking

Overview of the charging process status

Status of the

charging

process 2

Display Meaning

# Flashes

orange

Connection is

being estab-

lished

# Flashes green Active energy

ow

# Lights up

orange (for

approx. 60 s)

Interruption in

charging

# Lights up

green (for

approx. 60 s)

Charging

process com-

pleted

# Flashes red

(for approx.

90 s)

Vehicle mal-

function;

charging is

not possible

Starting the alternating current charging process

(mode 2/3)

DANGER Risk of fatal injuries in case of

improper handling of the Flexible Charging

System Pro

If you use the Flexible Charing System Pro

improperly, this may result e.g. in res or an

electric shock.

Observe the notes in the Owner's Man-

ual for the Flexible Charging Systems

Pro. Otherwise risks may not be detec-

ted.

DANGER Risk of death when charging at a

damaged socket

The charging process uses high voltage.

If the charging cable, the vehicle socket or the

mains socket are damaged, you could receive

an electric shock.

Only use an undamaged charging cable.

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F247 0074 02

Avoid mechanical damage such as crush-

ing, abrading or driving over the cable.

Have a damaged vehicle socket replaced

at a qualied specialist workshop as

soon as possible.

Never connect the charging cable to a

damaged vehicle socket.

NOTE Damage due to overheating of

charging cable and charge port

During the charging process, the charging

cable and charge port can heat up within the

permissible limits.

The permissible limit values are inuenced by

the following factors:

the power supply system and the charging

cable are not damaged

the instructions for handling the charging

cable and the control element on the

charging cable have been observed

If the charging cable or charge port

becomes too hot, have the power supply

system checked.

NOTE Damaged or dirty vehicle socket

when the socket ap is open

Always keep the socket cover and the

socket ap closed when there is no

charging cable connected. This protects

the vehicle socket from dirt and damage.

Make sure that the socket cover is

closed properly before closing the socket

ap. This can otherwise result in damage

which may prevent the socket ap from

being opened again.

NOTE Damage to the vehicle socket or the

charging cable connector due to incorrect

handling

Do not use excessive force (maximum 300 N)

to fully insert the charging cable connector

into the vehicle socket. You may otherwise

damage the vehicle socket, the charging cable

connector or their contacts.

If you feel there is increased resistance,

pull the charging cable connector out of

the socket and reinsert it.

Requirements

The transmission is in position j.

The vehicle is unlocked or the vehicle is locked

and the distance between the key and the

vehicle does not exceed 1 m.

The charging cable is not taut.

Depending on the charging version, your vehicle is

equipped with one of the following vehicle sock-

ets:

Type 2 for charging with alternating current

(mode 2/3)

Type Combo 2 for charging with alternating

current (mode 2/3) and charging with direct

current (mode 4)

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Combo 2 vehicle socket (example)

Press the centre on the rear area of the

socket ap 1 and swivel the socket ap to

the front.

The indicator lamp

2 % and status dis-

play

3 light up white.

Press catch 7 to the le and fold open

socket cover

On vehicles with a Combo vehicle socket, only

the connection 8 is required for the charg-

ing cable connector. Only open the upper part

of the socket cap

For charging at a mains socket insert the

mains plug into the mains socket of the exter-

nal power source to the stop.

Flexible Charging System Pro: if necessary,

switch o protective earth detection and set

maximum charge current (see operating

instructions of the charging system).

Fully insert the charging cable connector into

vehicle socket 8. If the wallbox/charging

station is not equipped with a charging cable,

fully insert the plug of the vehicle's charging

cable into the wallbox/charging station

socket.

Make sure that the charging cable is not taut

when inserted.

The indicator lamp

4 # and status dis-

play

3 ash orange and, as soon as the high-

voltage battery is charged, green.

When the charging cable is connected to the vehi-

cle, the vehicle cannot be started or moved.

At the start of the charging process, the charge

level display is shown in the driver display with a

charging prediction. The charging prediction is the

point in 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 the vehicle is idle for lengthy periods and

connected to the mains supply, the high-volt-

age battery will be recharged automatically as

needed or when electrical consumers are

activated (e.g. the pre-entry climate control).

The vehicle is equipped with a fuse against

overvoltages in the mains supply. This fuse

can respond e.g. in severe storms and result

in triggering of the building fuse and charging

interruption. These functions serve to protect

the vehicle.

Aer switching the building fuse back on

again the charging process is automatically

continued. During a charge interruption with-

out triggering the building fuse it may take up

to ten minutes for the charging process to

continue automatically.

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Ending the alternating current charging process

(Mode 2/3)

DANGER Risk of death when charging at a

damaged socket

The charging process uses high voltage.

If the charging cable, the vehicle socket or the

mains socket are damaged, you could receive

an electric shock.

Only use an undamaged charging cable.

Avoid mechanical damage such as crush-

ing, abrading or driving over the cable.

Have a damaged vehicle socket replaced

at a qualied specialist workshop as

soon as possible.

Never connect the charging cable to a

damaged vehicle socket.

NOTE Damage due to overheating of

charging cable and charge port

During the charging process, the charging

cable and charge port can heat up within the

permissible limits.

The permissible limit values are inuenced by

the following factors:

the power supply system and the charging

cable are not damaged

the instructions for handling the charging

cable and the control element on the

charging cable have been observed

If the charging cable or charge port

becomes too hot, have the power supply

system checked.

NOTE Damaged or dirty vehicle socket

when the socket ap is open

Always keep the socket cover and the

socket ap closed when there is no

charging cable connected. This protects

the vehicle socket from dirt and damage.

Make sure that the socket cover is

closed properly before closing the socket

ap. This can otherwise result in damage

which may prevent the socket ap from

being opened again.

Requirements

The vehicle is unlocked, or the vehicle is

locked and the distance between the key and

the vehicle does not exceed 1 m.

Depending on the charging version, your vehicle is

equipped with one of the following vehicle sock-

ets:

Type 2 for AC charging (Mode 2/3)

Type Combo 2 for AC charging (Mode 2/3)

and DC charging (Mode 4)

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Type Combo 2 vehicle socket (example)

Vehicles only equipped with a Type 2 vehicle

socket for AC charging have no charging inter-

ruption button 2.

Type Combo 2 vehicle socket: press the charg-

ing interruption button 2.

The charging process is ended. The % indi-

cator lamp

1 lights up white. The vehicle

socket is unlocked.

As an alternative, and only if the charging

interruption button 2 is not working, you can

unlock the vehicle with the vehicle key or cen-

trally from inside to end the charging process.

If the indicator lamp then %

1 lights up

white, the vehicle socket is unlocked for

around 30 seconds.

Type 2 vehicle socket: unlock the vehicle with

the vehicle key or centrally from inside.

The charging process is ended. The % indi-

cator lamp

1 lights up white. The vehicle

socket is unlocked for around 30 seconds.

If you cannot remove the charging cable con-

nector, repeat the unlocking procedure. If the

charging cable connector is still locked, con-

tact a qualied specialist workshop.

Close the socket cover and the socket ap.

Remove the charging cable connector from

the mains socket, or from the socket on the

wallbox/charging station, and stow the vehi-

cle's charging cable safely in the vehicle

(/ page 294).

Aer the charging cable connector has been

disconnected, the indicator lamp % 1 on

the vehicle socket remains lit for some time

before switching o.

Starting the direct current charging process

(mode 4)

DANGER Risk of death when charging at a

damaged socket

The charging process uses high voltage.

If the charging cable, the vehicle socket or the

mains socket are damaged, you could receive

an electric shock.

Only use an undamaged charging cable.

Avoid mechanical damage such as crush-

ing, abrading or driving over the cable.

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Have a damaged vehicle socket replaced

at a qualied specialist workshop as

soon as possible.

Never connect the charging cable to a

damaged vehicle socket.

NOTE Damage due to overheating of

charging cable and charge port

During the charging process, the charging

cable and charge port can heat up within the

permissible limits.

The permissible limit values are inuenced by

the following factors:

the power supply system and the charging

cable are not damaged

the instructions for handling the charging

cable and the control element on the

charging cable have been observed

If the charging cable or charge port

becomes too hot, have the power supply

system checked.

NOTE Damaged or dirty vehicle socket

when the socket ap is open

Always keep the socket cover and the

socket ap closed when there is no

charging cable connected. This protects

the vehicle socket from dirt and damage.

Make sure that the socket cover is

closed properly before closing the socket

ap. This can otherwise result in damage

which may prevent the socket ap from

being opened again.

NOTE Damage to the vehicle socket or the

charging cable connector due to incorrect

handling

Do not use excessive force (maximum 300 N)

to fully insert the charging cable connector

into the vehicle socket. You may otherwise

damage the vehicle socket, the charging cable

connector or their contacts.

If you feel there is increased resistance,

pull the charging cable connector out of

the socket and reinsert it.

Requirements

The transmission is in position j.

The vehicle is unlocked, or the vehicle is

locked and the distance between the key and

the vehicle does not exceed 1 m.

The charging cable is not taut.

306

Driving and parking

F247 0074 02

Press the rear centre of the socket ap 1

and ip the socket ap forwards.

The indicator lamp 2 % and status dis-

play

3 light up white.

Press catch 7 to the le and fold open

socket cover

A CCS charging cable plug requires connec-

tions 6 and 8. Accordingly you should

open both sections of the socket cover

Fully insert the CCS charging cable connector

into the vehicle socket.

Make sure that the charging cable is not taut

when inserted.

The indicator lamp

4 # and status dis-

play

3 ash orange and, as soon as the high-

voltage battery is charged, green.

When the charging cable is connected to the vehi-

cle, the vehicle cannot be started or moved.

At the start of the charging process, the charge

status is shown in the driver display with a com-

pletion time. The completion time 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 the vehicle is idle for lengthy periods and

connected to the mains supply, the high-volt-

age battery will be recharged automatically as

needed or when electrical consumers are

activated (e.g. the pre-entry climate control).

Ending the direct current charging process (mode

DANGER Risk of death when charging at a

damaged socket

The charging process uses high voltage.

If the charging cable, the vehicle socket or the

mains socket are damaged, you could receive

an electric shock.

Only use an undamaged charging cable.

Avoid mechanical damage such as crush-

ing, abrading or driving over the cable.

Have a damaged vehicle socket replaced

at a qualied specialist workshop as

soon as possible.

Never connect the charging cable to a

damaged vehicle socket.

NOTE Damage due to overheating of

charging cable and charge port

During the charging process, the charging

cable and charge port can heat up within the

permissible limits.

The permissible limit values are inuenced by

the following factors:

the power supply system and the charging

cable are not damaged

the instructions for handling the charging

cable and the control element on the

charging cable have been observed

Driving and parking

307

F247 0074 02

If the charging cable or charge port

becomes too hot, have the power supply

system checked.

NOTE Damaged or dirty vehicle socket

when the socket ap is open

Always keep the socket cover and the

socket ap closed when there is no

charging cable connected. This protects

the vehicle socket from dirt and damage.

Make sure that the socket cover is

closed properly before closing the socket

ap. This can otherwise result in damage

which may prevent the socket ap from

being opened again.

Requirements

The vehicle is unlocked, or the vehicle is

locked and the distance between the key and

the vehicle does not exceed 1 m.

Press charging interruption button 2.

The charging process is ended. The % indi-

cator lamp

1 lights up white. The vehicle

socket is unlocked.

As an alternative, and only if the charging

interruption button 2 is not working, you can

unlock the vehicle with the vehicle key or cen-

trally from inside to end the charging process.

If the indicator lamp then %

1 lights up

white, the vehicle socket is unlocked for

around 30 seconds.

Remove the charging cable connector from

the vehicle socket.

If you cannot remove the charging cable con-

nector, unlock the vehicle again and repeat

the unlocking procedure. If the charging cable

connector is still locked, contact a qualied

specialist workshop.

Close the socket cover and the socket ap.

Aer the charging cable connector has been

disconnected, the le % indicator lamp 1

on the vehicle socket remains lit for some

time before switching o.

308

Driving and parking

F247 0074 02

Driving and parking -> Charging the high-voltage battery (plug-in hybrid) for Your Mercedes GLA SUV Second Generation (2020-2026)

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