Seat Tarraco (2022 year). Manual in english - page 20

Battery

Battery

High-voltage battery

Safety instructions

Introduction

3

 Valid for: hybrid vehicles

WARNING

The vehicle’s high-voltage network and the
high-voltage battery are hazardous and
can cause burns and other injuries, includ-
ing fatal electric shocks.

●

It should always be assumed that the

high-voltage battery is fully charged and
that all of its components are live. This may
also be the case when the ignition is
switched off.

●

Never touch the high-voltage cables, the

high-voltage battery or its poles, or allow
them to come into contact with jewellery or
other metal objects, especially if the high-
voltage cables, the high-voltage battery or
its poles are damaged.

●

Never take it upon yourself to perform

any type of work on the high-voltage net-
work, on the high-voltage cables or the
high-voltage battery.

●

Never open or perform maintenance or

repairs on components or parts of the high

voltage network, or disconnect them from
this network.

●

Never damage, modify or remove the or-

ange high voltage cables or disconnect
them from the high voltage network.

●

Never open, modify or remove the cover

from the high-voltage battery.

●

Work on the high-voltage system, as well

as on any systems that may be indirectly
influenced by it, should only be carried out
by specialized personnel with the corre-
sponding qualifications and training.

●

Work in the immediate vicinity of high-

voltage cables and high-voltage compo-
nents with tools that are sharp, give off
shavings or that have heat sources, such as
hot air, thermal bonding or welding work,
may only be performed after disconnecting
the voltage. The high voltage should only
be disconnected by specialized personnel
with the corresponding qualifications and
training.

●

All SEAT guidelines and standards must

be followed when performing any work on
the high-voltage system and the high-volt-
age battery.

●

The gases that are emitted or leaked

from the high-voltage battery may be toxic
or flammable.

●

Damage to the vehicle or high voltage

battery could cause an immediate or de-
layed leak of toxic gases. The emitted

gases could also cause a fire. Do not inhale
the gases.

●

Never touch the liquids that spill from the

high voltage battery and do not touch the
emitted gases, particularly if the battery is
damaged.

●

In the event of a fire, leave the danger

area and call the fire department. Inform
the fire fighters that the vehicle is fitted
with an electric drive system.

●

Always inform the fire fighters and the

emergency service that the vehicle is fitted
with a high-voltage battery.

WARNING

If works are performed on the high-voltage
system and on the high-voltage compo-
nents in an inappropriate manner, this may
lead to faults in the operation, accidents
and injuries.

●

Work on the high-voltage system must

only be performed by authorized special-
ized services with the corresponding per-
mit.

CAUTION

●

If the vehicle suffers an accident or colli-

sion with an obstacle, the high-voltage bat-
tery must be checked by specialized per-
sonnel with the corresponding qualifica-
tions and training.

316

High-voltage battery

●

If the 12-volt vehicle battery has been

disconnected, discharged or replaced,
there is a chance that the combustion en-
gine may not initially turn off automatically
after moving off. If this situation lasts for
several days, contact a qualified special-
ized workshop. SEAT recommends visiting a
SEAT partner for this.

High voltage warning lettering

3

 Valid for: hybrid vehicles

Fig. 221 

Warning lettering.

Fig. 222 

High-voltage battery warning letter-

ing.

Warning lettering on the vehicle

The following parts of the vehicle can be
identified with the depicted warning lettering

››› 

Fig. 221

, 

››› 

Fig. 222

:

●

Covers and lids behind which live high-volt-

age components are located.

●

All the high-voltage components, including

the high-voltage battery.

●

Under the front bonnet.

The warning lettering 

››› 

Fig. 221

 



 and 



 in-

dicate high electrical voltage.

The components of the high voltage system
can become very hot and should not be
touched 

››› 

Fig. 221

 



.

››› 

Fig. 222

High voltage can cause serious injury or
even death. Never touch the battery
poles with bare fingers, tools, jewellery or
other metal objects.
The high-voltage battery contains haz-
ardous liquid and solid substances. Emit-
ted gases can cause severe burns and
blindness. Suitable eye protection and
protective clothing must always be worn
when working on the high voltage battery
to prevent battery fluid coming into con-
tact with the skin and eyes. If the battery
fluid comes into contact with the skin or
eyes, the affected areas should be rinsed
with clean running water for at least 15
minutes, and then a doctor should be
consulted immediately.
The high-voltage battery may burn. The
high-voltage battery should never be ex-
posed to fire, sparks or naked flame. The
high voltage battery must always be han-
dled with care to avoid damage and fluid
leakages.
The high-voltage battery should always
be kept out of the reach of children.
You will find further information and warn-
ings in the usage instructions and work-
shop documentation.
Incorrect handling of the high-voltage
battery can cause serious injuries or
death. Never disassemble the high volt-
age battery or remove its cover.

»

1

2

3

4

5

6

317

Battery

Incorrect handling of the high-voltage
battery can cause serious injuries or
death. Maintenance work on the high-
voltage battery must only be performed
by specialized personnel with the corre-
sponding qualifications and training. Nev-
er modify the high-voltage battery. When
the high-voltage battery is open, ensure it
does not come into contact with water or
other liquids. Liquids may cause short cir-
cuits, electrical shocks and burns.

Conservation of the high-
voltage battery

Conservation instructions

3

 Valid for: hybrid vehicles

Reliability and capacity of the high-volt-
age battery

Lithium ion batteries are subject to ageing
and wear and tear throughout their useful life
due to their physical and chemical charac-
teristics. Correct handling of the high-voltage
battery makes an essential contribution to
keeping it in a reliable state in the long term
and to achieving high battery capacity and
range. Therefore, it is extremely important to
respect the following conservation instruc-
tions for the high voltage battery. These

7

maintenance instructions are essential for
maintaining the vehicle's value over time.

Please also observe the applicable SEAT
warranty conditions for the high-voltage bat-
tery.

Conservation instructions

SEAT recommends the following conserva-
tion instructions:

●

If possible, charge the high-voltage battery

when a low charge level is displayed on the
instrument cluster, or when the electric range
is low 

››› 

page 80

.

●

SEAT advises not charging the high-voltage

battery when only a short trip has been made
in full electric mode.

●

As much as possible avoid fully discharging

the high-voltage battery, such as by leaving
the vehicle parked for a prolonged time with
a low load level. The charge level must not
drop below 20% for long periods of time 

››› 

.

●

When the high-voltage battery has been

fully charged, start driving immediately if
possible.

Vehicle parking times

●

If there is a frost, do not park the vehicle for

several hours with a charge level of lower
than 40% 

››› 

.

●

If you plan to leave your vehicle stationary

for prolonged periods of time, park with a

charge level of at least 30%. This situation
occurs, for example, when you leave your ve-
hicle at the airport before a trip.

●

Do not expose the vehicle to outside tem-

peratures below -30°C or above 60°C for
over 24 hours.

CAUTION

The high-voltage battery must not be used
as a stationary power supply. This can
cause irreversible damage to the high-volt-
age battery.

CAUTION

If the vehicle is parked for a long time with
the high-voltage battery discharged, it
may no longer be possible to charge the
battery or start the vehicle. Irreversible
damage could be caused to the high volt-
age battery in the long term.

●

Charge the high-voltage battery at regu-

lar intervals.

318

High-voltage battery

Charging settings in the info-
tainment system

Battery Manager Menu

3

 Valid for: hybrid vehicles

The 

Battery Manager

 allows you to set or

select departure times for the programmed
charging of the high-voltage battery and for
the vehicle’s electric heating and air condi-
tioning.

Open the Battery Manager menu

●

Switch the ignition on.

●

Switch on the infotainment system.

●

Select 

Battery Manager

 from the main

menu.

It is possible to change the settings for imme-
diate charging (the next charging process).

●

Reduce the charging current, e.g. when

other major consumers are operating on a
single line of the electrical installation at the
same time. Charging power is reduced and
charging time is extended.

●

Set the desired temperature for the station-

ary air conditioning .

Departure time settings menu

Programmed charging (departure times) can
be set 

››› 

page 319

.

●

Specify the amount of time for which you

want the high-voltage battery to charge and
the air conditioning to be switched on inside
the vehicle.

Extended Stationary Air Conditioning
Menu

●

Set the desired temperature for the station-

ary air conditioning .

The air conditioning works both when the ve-
hicle is connected to the grid and disconnec-
ted. If you want to use the high-voltage bat-
tery as the power supply, change the setting
in the 

Settings

 menu.

Charging settings menu

It is possible to configure the general settings
for the charging process.

●

Lower battery charge limit (minimum de-

sired charge level of the high voltage bat-
tery):

 a minimum range can be ensured with

this function. The vehicle charges directly
once it has been connected to a charging
station or electrical socket. The function is
available if a departure time has been activa-
ted 

››› 

page 319

.

●

Air conditioning using the high-voltage bat-

tery:

 if the vehicle is not plugged in to an ex-

ternal network and this option is enabled, the
electric range of the vehicle can be signifi-
cantly reduced!

Departure time settings

3

 Valid for: hybrid vehicles

Fig. 223 

Behind the cover of the battery

charging socket: charging buttons.

With programmed charging, the battery
charge can be programmed and delayed so
that the desired battery level is reached at a
certain time when the vehicle is connected to
the charging socket.

Viewing the departure times

●

Select 

Battery Manager

 from the Infotain-

ment main menu.

●

Select 



 to open the overview of departure

times.

Departure time settings

To set the desired departure time, touch the
corresponding function button or check the
box 



.

»

319

Battery

●

Departure times:

 Time, day of the week or

set a single or weekly departure time.

●

Air conditioning:

 the vehicle interior is

heated or cooled by the departure time.

●

Trough or night-time tariff:

 a preferred pe-

riod of time for charging can be set.

Activating the departure time

Activate the departure time by checking the
box in the departure times overview.

Displays

Charging activated at a departure time.
Air conditioning switched on at a depar-
ture time.
The departure time is used regularly.

Immediate charge buttons and scheduled
charge button

››› 

Fig. 223

Immediate charge button
Scheduled charge button

When the high-voltage battery is charged im-
mediately, the immediate charge button
lights up on the charging socket 



 

1

. Press

the immediate charge button 



 

1

 to inter-

rupt the charging process.

If a departure time has been programmed
and the charging cable is connected, the
programmed charging button lights up 



 

2

.







1

2

Charging the high-voltage
battery

Introduction

3

 Valid for: hybrid vehicles

Check that the driving mode is deactivated
and that the charging cable and infrastruc-
ture are in perfect condition.

Charging modes

Your vehicle has the following possible charg-
ing modes:

●

Fixed AC (alternating current) charging sta-

tion or Wallbox, also known as Mode 3 charg-
ing

 

››› 

page 322

: The vehicle can be charg-

ed at maximum power at these stations, e.g.
at a public charging station or home Wallbox.

●

Portable charging station or ICCB (In-Ca-

ble Control Box) cable, also known as Mode 2
charging or cable

››› 

page 322

: The Mode 2

cable is included as standard and is connec-
ted to a conventional household electrical
socket, meaning that the maximum power will
be limited 

››› 

. You must plan for a longer

charging time, e.g. overnight.

The home's electrical installation must be
verified and in perfect condition.

Direct current (DC) or Mode 4 charging is not
compatible with this vehicle.

Differential protection

The vehicle is fitted with a direct current leak-
age (DC leakage) protection device. This
prevents any DC leaks that may occur during
charging from flowing into the home’s electri-
cal installation through the charging cable.

WARNING

Charging the battery improperly, failing to
observe generally applicable safety meas-
ures, using unsuitable or damaged elec-
tricity sockets and charging cables, charg-
ing from an unsuitable electrical installa-
tion or incorrectly handling the high-volt-
age battery can cause short circuits, elec-
trical discharges, explosions, fires, burns,
serious injury and even death.

●

Always follow the steps in the order in

which they are shown to avoid the risk of an
electrical discharge and serious injury
caused by the residual energy present in
the charging accumulator. Never pull on
the mains connector during charging.

●

Only charge the vehicle from correctly

installed power sockets that have been
tested and are undamaged, and from elec-
trical installations in a perfect state of re-
pair. Get specialized personnel to periodi-
cally inspect the power sockets and the
electrical installation.

●

Only plug in the charging cable to an

electrical socket that is protected from wa-
ter, humidity and other liquids.

320

High-voltage battery

●

Never charge the vehicle in potentially

explosive atmospheres. The components of
the charging cable can cause sparks and,
therefore, may ignite flammable or explo-
sive vapours.

●

Never use damaged charging connectors

or cables. Before each use, check that the
connector and charging cable are not
damaged.

●

Never use the charging cable with an ex-

tension lead, rolled cable, power strip or
adapter, e.g. adapter for other countries or
timer.

●

Always protect the connectors to prevent

water, moisture and other liquids from di-
rectly getting inside.

●

For safety reasons, no other work should

be performed on the vehicle while it is
charging.

●

Always end the charging process before

unplugging the mains connector. Other-
wise the charging cable and the electrical
installation may also be damaged.

●

Never charge several vehicles simultane-

ously from electrical sockets of the same
safety circuit. Use a different safety circuit
to charge additional vehicles. Always
check the maximum current or power of the
safety circuit that is used. If necessary,
seek advice from qualified electrical instal-
lation professionals.

●

Only use the charging cables supplied

with the vehicle or the charging station ca-

ble. If the cable needs to be replaced, it is
recommended to exclusively use SEAT
charging cables.

●

Never make changes or repairs to electri-

cal components, particularly the high volt-
age system.

●

Always unplug the charging cable before

starting the vehicle. Place the protective
caps and close the cover of the battery
charging socket.

Note

●

The high-voltage battery can only be

charged at charging stations that meet the
following requirements and regulations:

–

IEC 61851 and IEC 62196 (type 2 con-
nector).

●

Very low or very high temperatures can

noticeably reduce the high voltage bat-
tery’s charging power.

●

To avoid possible compatibility problems

with charging infrastructures, SEAT recom-
mends the use of cables and home charg-
ing stations recommended by the Volkswa-
gen Group.

●

For charging with alternating current,

SEAT recommends charging the high-volt-
age battery at maximum charging power
from a fixed charging station or Wallbox.
This achieves greater efficiency when
compared to charging from an electrical
socket.

●

Check the technical information about

your vehicle’s charging capacity. You can
get more information from any SEAT dealer.

Identification of compatible charg-
ing infrastructure

3

 Valid for: hybrid vehicles

Fig. 224 

Identification of alternating current

(AC) and type 2 connector.

Fig. 225 

Identification of direct current (DC)

and the vehicle's CCS connector

Compatibility between vehicles and
charging infrastructure

The following indicators according to DIN EN
17186 report whether the infrastructure's

»

321

Battery

charging connectors are suitable for the vehi-
cle 

››› 

.

Indicators

 

››› 

Fig. 224

In the vehicle
At the charging station

Indicators

 

››› 

Fig. 225

Voltage up to 500 volts
Voltage of up to 1000 volts.

The indicators are located on the vehicle's
charging socket, on components of the local
charging infrastructure (charging station,
socket) and on the charging cable. The indi-
cators refer to standardized charging sys-
tems as per the DIN EN 62196 standard.

WARNING

Charging the vehicle at unverified electri-
cal installations can cause serious injury
and damage.

●

If there is no indicator or if the charging

infrastructure is unknown, an electrical in-
stallation expert should be consulted first.









AC charging

3

 Valid for: hybrid vehicles

Fig. 226 

Behind the battery charging cover on

the front left-hand side: Charging socket

››› 

Fig. 226

charging socket
Charging process display
Charging buttons

The battery charger installed in the vehicle
converts alternating current from the public
supply into direct current.

AC Charging Station, Wallbox or mode 2 ca-
ble:

 The vehicle’s high-voltage battery can be

charged using alternating current (AC)
through the corresponding charging socket

1

.

1

2

3

Connecting the charging cable

●

Firstly, connect the charging cable to the

electrical socket, charging station or Wallbox.
Next, fully unwind it.

●

Charging cable for power sockets:

 The pro-

tection device performs a self-test

››› 

page 327

.

●

With the vehicle unlocked, the battery

charging cover opens when it is pressed

››› 

Fig. 226

.

●

Plug the charging connector into the

charging socket. Check that the charging
connector is fully plugged in.

The connector locks automatically.

The LED 

2

 (charging process indicator) of

the charging connector lights up. The indica-
tor lamp 



 lights up on the instrument cluster

display.

Automatic start of the charging process

If programmed charging is not activated, the
charging process starts immediately

››› 

page 319

. The external charging infra-

structure must be active.

During the charging

The charging process indicator 

2

 on the

charging socket flashes green. The indicator
lamp 



 flashes green on the instrument clus-

ter.

322

High-voltage battery

Interrupt the charging process

The charging process can be interrupted:

●

Unlock the vehicle.

●

Press the immediate charge button 



››› 

Fig. 223

 

1

. The charging connector re-

mains locked.

●

Unlock the vehicle to unlock the charging

connector.

The charging process can continue by press-
ing the immediate charge button again 



.

After charging

When the high-voltage battery is fully charg-
ed, the charging process display on the
charging socket lights up green.

●

Unlock the vehicle.

●

Unplug the charging connector from the

charging socket within 30 seconds.

●

Disconnect the charging cable from the

power supply and replace the protective cap.

●

Close the charging cover and make sure

you hear it click into place.

First charge and charging after a long time

If the high-voltage battery is new or has not
been charged for a long time, the maximum
charge level of the battery can only be
reached after several charging processes.

This is for technical reasons and is not a vehi-
cle malfunction.

If the vehicle is not used for a long period of
time, the high-voltage battery must be charg-
ed at least once every four months.

Note

If you leave the charging cable connected
after charging, the vehicle's electrical con-
sumers will not drain the high-voltage bat-
tery.

Charging process display

3

 Valid for: hybrid vehicles

Fig. 227 

Behind the cover of the battery

charging socket: charging process display

Fig. 228 

On the inside of the cover of the bat-

tery charging socket: sticker with information

on the charging process display.

The charging process indicator is an LED

››› 

Fig. 227

 

1

 located on the charging socket

that shows the status of the charging proc-
ess.

A sticker on the battery charging cover pro-
vides information on the meaning of the LEDs

››› 

Fig. 228

.

charging process displays:
Green LED

 

››› 

Fig. 228

:

Always on: Charge completed success-
fully.
Turn signals: The high-voltage battery is
charging.

»

1

2

323

Battery

Short flashes: Programmed charging is
active. The charging process has not yet
started.

Yellow LED

 

››› 

Fig. 228

:

Turn signals: The parking lock 

P

 has not

been enabled.
Briefly lights up: The charging connector
has been plugged into the charging sock-
et and the vehicle has detected it.
Always on: No electrical network has
been detected. Arrange an inspection of
the power supply and network. Seek pro-
fessional assistance.

Red LED

 

››› 

Fig. 228

:

Turn signals: Error in the charging system.
The charging process cannot start or has
paused.
Always on: The charging connector has
not been locked. Unplug the charging
connector and plug it back in to the
charging socket, making sure it is proper-
ly inserted. If the problem persists, check
the compatibility of the cable or ask a
professional for help.

Note

If the charging process display permanent-
ly indicates an error in the power supply or
vehicle’s charging system, you should seek
professional assistance.

3

4

5

6

Troubleshooting

3

 Valid for: hybrid vehicles



 Error in the electric drive system

The warning lamp lights up red. 



 

You must

park the vehicle in a safe place.

The corresponding error message is dis-
played on the instrument cluster display.

Fault in the electric drive system. The high
voltage components may be damaged 

››› 

.

●

Park the vehicle outdoors as soon as it is

possible and safe to do so.

●

Switch off the drive system.

●

Seek professional assistance.

The charging process is not possible or
has been paused

An error may be displayed on the instrument
cluster display or on the charging socket’s
charging process display.

You can try the following to solve the problem
before seeking professional assistance:

●

Unlocking the charging connector and plug

the charging cable in again.

●

OR:

 Make sure that the charging settings

are as desired: “immediate” or “program-
med”.

●

OR:

 Check if the charging connector is

properly plugged in.

●

OR:

 Check if a fault is displayed on the

charging station or, depending on the fea-
tures, on the displays of the mode 2 charging
cable.

If the fault cannot be rectified, seek professio-
nal assistance directly.

WARNING

High-voltage components, including the
battery and high-voltage cables, may be
live and damaged. The high voltage system
voltage is dangerous and can cause burns,
other injuries and fatal electric shocks.

●

Do not touch the high voltage compo-

nents!

324

High-voltage battery

Emergency release of the charging
connector

3

 Valid for: hybrid vehicles

Fig. 229 

Between the left wing panel and the

engine bonnet hinge: Charging connector

manual release mechanism puller.

Unlocking the charging connector

Prerequisites:

●

The charging connector is plugged in cor-

rectly 

››› 

page 322

.

●

The vehicle is unlocked.

●

The charging process has ended or has

paused 

››› 

page 320

.

The manual release mechanism must be
used if these prerequisites are met and it is
still impossible to unplug the charging con-
nector.

Manual release of the charging connector

The puller for the manual release mechanism
is on the left hand side of the engine com-
partment, above the charging socket

››› 

Fig. 229

.

●

Disconnect the power supply at the charg-

ing station or electrical socket.

●

Open the bonnet and make sure it is held in

place with the prop.

●

Use the wire hook in the vehicle’s toolkit

››› 

Fig. 31

 to hook the puller and pull on it.

●

Immediately unplug the charging connec-

tor.

Note

●

The manual release mechanism of the

charging connector should only be used in
the event of a failure.

●

After using the charging connector’s

manual release mechanism, the charging
socket must be inspected immediately by a
professional.

Charging cable

Introduction

3

 Valid for: hybrid vehicles

The type of charging cable supplied with the
vehicle depends on the delivery volume and

the specific technical specifications of each
country, e.g. charging connector connections
for power sockets.

SEAT recommends 

exclusively

 using the

supplied charging cable.

Notes on the charging cable

●

Handle with care.

●

Unroll and roll fully.

●

Do not twist or bend it over sharp edges.

●

Do not crush it or drive the vehicle over it.

●

Always unplug it by pulling on the connec-

tor.

●

Children should not use the charging cable.

●

Keep animals away from the charging ca-

ble.

●

After use, store it safely and without twisting

it.

Notes on charging connectors and the
charging cable protection device

●

Do not touch the charging connector’s

contacts.

●

Protect from strong sunlight (outside tem-

peratures no higher than 50°C or 122°F).

●

Do not drop them.

●

Protect from immersion in fluids such as rain

water.

●

Fit the protective caps after each use.

»

325

Battery

Cleaning the charging cable

●

Clean the surface of the charging cable

with a dry or slightly damp cloth 

››› 

, 

››› 

.

WARNING

Items that are not secured, or incorrectly
secured can cause serious injury during
sudden manoeuvres or braking, or in the
event of an accident.

●

Store the charging cable securely in the

luggage compartment.

●

Use the organizer/protective cover provi-

ded with the cable for this purpose.

WARNING

Using a charging cable that has been dam-
aged or tampered with can cause serious
injury and fatal electric shocks.

●

Before each use check that the connec-

tors and the charging cable are undam-
aged, e.g. check for cracks.

●

Never use a charging cable that is dam-

aged or has been tampered with.

●

If the charging cable does not work prop-

erly, get a SEAT dealer to check it.

WARNING

The charging cable for electrical sockets
must always be connected directly to an
electrical socket. Failure to do so could re-
sult in fire damage and damage to the

charging cable or home electrical installa-
tion.

●

Never connect the charging cable to an

extension lead, cable reel, power strip or
adapter or timer.

WARNING

The high voltage system voltage is danger-
ous and can cause burns, other injuries and
fatal electric shocks.

●

Only clean the charging cable when it is

unplugged.

CAUTION

The charging cable, as portable electrical
equipment, may have to be checked peri-
odically. This requires a test adapter.

CAUTION

The charging cable can be damaged if not
cleaned properly.

●

Only water should be used for this pur-

pose, and never additional cleaning prod-
ucts.

●

Water should be prevented from getting

into the contacts.

For the sake of the environment

Charging cables must be disposed of in an
environmentally friendly way and should
not be thrown in the household waste.

Note

The maximum charging capacity of the
safety circuit that is used must be ob-
served. If the charging cable is planned in-
to an electrical socket on the same circuit
as other consumers, the circuit's fuses may
trip.

Charging cable for alternating cur-
rent (AC) charging stations

3

 Valid for: hybrid vehicles

Fig. 230 

Charging cable for alternating cur-

rent (AC) charging stations.

The maximum charging current is 16 or 32
amps, depending on the vehicle’s features
and the charging cable that is supplied 

››› 

.

326

High-voltage battery

WARNING

Charging the high-voltage battery with an
inappropriate charging cable could cause
short circuits, serious injuries and fatal
electrical shocks.

WARNING

The charging cable should not be used as
an extension lead. The charging process
could be affected.

CAUTION

Follow the manufacturer’s instructions and
indications when using the charging sta-
tion.

Note

Charging with a 16 A charging cable is not
possible in some charging stations that
support 32 A. This depends on the features
of the charging station.

●

Before charging the vehicle, find out

about the available charging technology.

Charging cable for power sockets

3

 Valid for: hybrid vehicles

Fig. 231 

Charging cable for electrical sockets

Fig. 232 

On the charging cable for power

sockets: Indicator lamps on the protection de-

vice.

››› 

Fig. 232

:

Indicator lamp of the connector and the
power supply.
Control lamp of the protection device

1

2

Control lamp of the vehicle
Failure warning lamp

Charging cable information

Before using the charging cable, also follow
the instructions displayed on it and on the
rear of the protective device.

Protection device

The electronic protection device 

››› 

Fig. 232

ensures that the charging connector does
not receive current until it is plugged in to the
vehicle's charging connector.

Self-check

When the charging cable is plugged into the
electrical socket, the protective device auto-
matically performs a self-test. During this
check, all warning and indicator lamps turn
on briefly and go out one after the other.
Upon completion, the operational status at
that time is displayed.

Operating displays

One or more indicator lamps 

››› 

Fig. 232

 

1

,

2

 or 

3

 light up green.

»

3

4

327

Battery

Display

››› 

Fig. 232

Meaning

1

 on

The charging cable is plug-

ged into the mains but has

not been connected to the
vehicle.

1

, 

2

 on, 

3

 flashes

slowly

a)

The high-voltage battery is
charging.

1

, 

2

 and 

3

 on

The charging process is
complete. The high-voltage

battery has charged.

a)

The available supply voltage depends on each

country.

Set the charging current

The charging cable limits the charging cur-
rent according to the available power supply.

If the local mains supply does not allow
charging at the maximum charging current,
the charging current can be reduced, de-
pending on the charging setting features in
the infotainment system 

››› 

page 319

.

Temperature control

The charging cable temperature control
switches on when the charging cable over-
heats, such as when it has been stored in a
luggage compartment exposed to high tem-
peratures or strong sunlight.

When the charging process 

is interrupted

,

the status indicator that is lit up at the time

switches off and one of the indicator lamps
starts slowly flashing green. Warning lamp 

4

starts slowly flashing red.

●

Unplug the charging cable and let it cool

down.

●

If the error occurs again, seek professional

assistance.

If charging continues with a lower charging
current, warning lamp 

4

 lights up in red in

addition to the status indicator. The charging
cable must be allowed to cool down for a
while. The charging current automatically in-
creases again.

Fault display

If the red warning light 

4

 flashes or turns on

without one of the indicator lamps 

››› 

Fig. 232

1

, 

2

 or 

3

 also turning on continuously on

the status indicator, there is a fault.

Display

››› 

Fig. 232

Meaning

1

 flashes, 

4

 on or

flashing

Failure in the power supply.

2

 flashes, 

4

 on or

flashing

Failure in the protection de-

vice.

3

 flashes, 

4

 on or

flashing

Failure in the vehicle.

The charging process pauses or is cancelled.

●

Check the instructions located on the back

of the protective devices.

●

Seek professional assistance if the fault

persists.

Note

If there is any other mains connection dur-
ing the charging process, or if the vehicle is
right next to the high voltage cables,
charging from an electrical socket is not
possible in some cases. Additional mains
connections:

●

Connecting a 12 volt battery charger.

●

Contact with a work tool connect to the

mains, such as a vehicle lift.

328

Checking and refilling levels

Practical tips

Checking and refilling lev-
els

Refuelling

Purging the fuel tank

3

 Valid for: hybrid vehicles.

Fig. 233 

Driver's door: tank flap release.

Before refuelling the fuel system must be
depressurised 

››› 

 in Refuelling on

page 330

. To do this, press the 



 button on

the driver’s door.

An audible sound will be played and a warn-
ing will be displayed on the instrument cluster
display.

After a few seconds the fuel tank flap will un-
lock and remain unlocked for a few minutes. If
you have not refuelled after this time, you
must press the 



 button again before refuel-

ling.

Avoid touching the fuel tank flap lock button

››› 

Fig. 234

 (arrow). The system will interpret

that you have finished and cannot continue
refuelling. Press the 



 button on the driver’s

door again to continue.

Refuelling

Fig. 234 

Fuel tank flap with tank cap attached.

The fuel tank flap is on the rear right of the
vehicle.

●

Hybrid vehicles:

 Use the 



 button on the

driver’s door to release the tank flap.

●

All other versions:

 The tank flap is unlocked

when the car is unlocked using the central
locking remote control 

››› 

page 95

.

●

Open the fuel tank flap by pressing on the

retainer zone.

●

Unscrew the cap by turning it to the left.

●

Place it in the space on the hinge of the

open flap 

››› 

Fig. 234

.

●

Start refuelling. The tank is full as soon as

the pump’s automatic nozzle cuts off the fuel
supply. Do not try to put in more fuel after the
nozzle cuts out, as this will fill the expansion
chamber in the fuel tank.

●

Unscrew the cap by turning it to the right as

far as it will go.

●

Close the lid.

The correct fuel grade for your vehicle is giv-
en on a sticker on the inside of the fuel tank
flap. Further notes on fuel can be found at

››› 

page 331

.

The capacity of your vehicle's fuel tank is giv-
en in 

››› 

page 382

.

Vehicles with natural gas engines and hy-
brids

Every 6 months it is necessary to run on pet-
rol until the control lamp 



 switches off, and

then the tank must be refilled. This is neces-
sary to ensure that the system works proper-
ly, as well as the fuel quality required for driv-
ing with petrol.

»

329

Practical tips

WARNING

Fuel is highly flammable and can cause se-
rious burns and other injuries.

●

When refuelling, turn off the engine, the

auxiliary heater 

››› 

page 167

 and turn off

the ignition for safety reasons.

●

The fuel system of PHEV models is pres-

surized to prevent petrol vapours from es-
caping into the atmosphere.

●

Do not smoke when filling the fuel tank or

a canister. Naked flames are forbidden in
the vicinity due to the risk of explosion.

●

Observe legislation governing the use,

storage and carrying of a spare fuel canis-
ter in the vehicle.

●

For safety reasons we do not recommend

carrying a spare fuel canister in the vehi-
cle. In an accident the canister could be
damaged and could leak.

●

If, in exceptional circumstances, you

have to carry a spare fuel canister, please
observe the following points:

–

Never fill fuel into the spare fuel canis-
ter if it is inside or on top of the vehicle.
This could cause an explosion. Always
place the canister on the ground to fill
it.

–

Insert the filling nozzle as far as possi-
ble into the spare fuel canister.

–

If the spare fuel canister is made of
metal, the filling nozzle must be in con-
tact with the canister during filling. This
helps prevent an electrostatic charge
building up.

–

Never spill fuel in the vehicle or in the
luggage compartment. Fuel vapour is
explosive. Risk of fatal accident!

CAUTION

●

If any fuel is spilt onto the vehicle, it

should be removed immediately. It could
otherwise damage the paintwork.

●

Never run the tank completely dry. The

catalytic converter can be damaged.

●

When filling the fuel tank after having run

it completely dry on a vehicle with a diesel
engine, the ignition must be switched on for
at least 30 seconds before starting the en-
gine. When you then start the engine it may
take longer than normal (up to one minute)
to start firing.

For the sake of the environment

Do not overfill the fuel tank, it may cause
the fuel to overflow if it becomes warm.

Note

There is no emergency mechanism for the
manual release of the fuel tank flap. If nec-
essary, request assistance from special-
ised personnel.

Note

Diesel vehicles are fitted with a protective
device that prevents the insertion of the
wrong fuel hose

1)

. It is only possible to re-

fuel with Diesel nozzles.

●

If the pump nozzle is worn, damaged, or if

it is very small, it is possible that it will not
be able to open the protective device. Be-
fore trying to insert the pump nozzle by
turning it, try a different pump or request
specialist help.

●

If you fill the tank from a reserve fuel can-

ister, the protective device will not open.
One way to resolve this is to pour the fuel in
very slowly.

1)

Depending on country

330

Checking and refilling levels

Fuel types

Identification of fuels

1)

Fig. 235 

Identification of fuels according to

European Union (EU) Directive 2014/94/

Fuels are identified by different symbols on
the pump and on your vehicle's tank flap. The
identification serves to prevent confusion
when choosing the fuel.

Petrol

 with ethanol (“E” stands for 

E

tha-

nol). The number indicates the percent-
age of ethanol in the petrol. “E5” means,
for example, an ethanol ratio of 5% max.

1

Diesel

 according to EN590 standard. The

number indicates the maximum percent-
age of Biodiesel in the fuel. “B7” means a
maximum of 7% Biodiesel.
Synthetic 

diesel

 according to EN15940

standard.

Natural gas

: “CNG” means 

C

ompressed

N

atural 

G

as.

Type of petrol

3

 Valid for: vehicles with petrol engines

The correct grade of petrol is listed inside the
fuel tank flap.

The vehicle is equipped with a catalytic con-
verter and must only be run on 

unleaded

petrol

. The petrol must comply with the

standard EN 228 and be 

sulphur-free

. Fuels

with a 10% ethanol ratio can be refuelled
(E10)

2)

. The types of petrol are differentiated

by using the 

octane numbers (RON)

 or via

the 

anti-knock index (AKI)

.

2

3

4

Super unleaded petrol 95 octane petrol or
normal 91 octane petrol at least

We recommend refuelling with super 95 oc-
tane petrol (91 AKI). If not available, normal 91
octane petrol (87 AKI) (with a slight power
loss) may be used.

Super unleaded petrol, 95 octanes at
least

You should use super 95 octane petrol (91
AKI) at least.

If super is not available, 

if necessary

, use nor-

mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light
throttle. Refuel with super as soon as possi-
ble.

Unleaded super plus 98 octane petrol or
super 95 octane petrol at least

We recommend refuelling with super plus 98
octane petrol (93 AKI). If not available: super
95 octane petrol (91 AKI) (with a slight power
loss).

If super is not available, 

if necessary

, use nor-

mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light

»

1)

Depending on country

2)

Follow the regulations of the country you are

driving in.

331