2021 PEUGEOT 508 run flat

102
Driving
Starting

► With an automatic gearbox, select mode P
or N and press the brake pedal.
►

Press the "
START/STOP" button while
maintaining pressure on the pedal until the
engine starts.
Diesel engines
In negative temperatures and/or when the
engine is cold, starting takes place only after the
preheating warning lamp goes out.
If this warning lamp comes on after
pressing the " START/STOP" button:
►

Keep the pedal fully depressed and do not
press the "

START/STOP" button again until the
engine is running.
In all circumstances, if one of the starting
conditions is not met, a message is displayed.
In some circumstances, a message indicates
that it is necessary to turn the steering wheel
while pressing the " START/STOP" button to
assist unlocking of the steering column.
Petrol engines
With Petrol engines, after a cold start,
pre-heating the catalytic converter can cause
noticeable engine vibrations, for anything up
to 2 minutes (accelerated idle speed).
Starting rechargeable hybrid
vehicles
► Fully depress the brake pedal and press
the START/STOP button for approximately 2
seconds.
► Keep your foot on the pedal until this
indicator lamp comes on, indicating the
activation of the rechargeable hybrid system
(confirmed by an audible signal).
To exit Park mode, wait for the READY indicator lamp to come on.
By default, the system starts in Electric mode.
Depending on certain parameters (battery
charge level or outside temperature), the system
determines whether it is necessary to start the
petrol engine.
It is possible to change the driving mode at any
time using the mode selector.
When the vehicle starts in electric mode,
it makes no noise.
Pay particular attention to pedestrians and
cyclists who may not hear the vehicle coming
despite the pedestrian horn.
Switching off
► Immobilise the vehicle using the parking
brake.
►

With an
automatic gearbox, ideally select
mode
P or N.
►

Press the "
START/STOP" button.
►

For rechargeable hybrid vehicles, before
leaving the vehicle, check that the READY


indicator lamp is switched off.
In some circumstances, it is necessary to turn
the steering wheel to lock the steering column.
On certain versions with an automatic gearbox
(EAT6/EAT8), the steering column does not lock,
but the gearbox locks in mode P.
If the vehicle is not immobilised, the
engine will not stop.
With the engine off, the braking and
steering assistance systems are also cut
off - risk of loss of control of the vehicle!
Never leave your vehicle with the
electronic key still inside.
Switching on the ignition
without starting the engine


With the electronic key in the passenger
compartment, pressing the " START/STOP"
button, without depressing any of the pedals ,
allows the ignition to be switched on without
starting the engine.
► Press this button again to switch off the
ignition and allow the vehicle to be locked.
Key not detected
Back-up starting
A back-up reader is fitted to the steering column,
to enable the engine to be started if the system
fails to detect the key in the recognition zone, or
if the battery in the electronic key is flat.

103
Driving
6Switching on the ignition
without starting the engine


With the electronic key in the passenger
compartment, pressing the "START/STOP"
button, without depressing any of the pedals ,
allows the ignition to be switched on without
starting the engine.
►

Press this button again to switch off the
ignition and allow the vehicle to be locked.
Key not detected
Back-up starting
A back-up reader is fitted to the steering column,
to enable the engine to be started if the system
fails to detect the key in the recognition zone, or
if the battery in the electronic key is flat.


► Place and hold the remote control against the
back-up reader .
►

W
ith an automatic gearbox, select mode P,
then depress the brake pedal.
►

Press the "
START/STOP" button.
The engine starts.
Back-up switch-off

If the electronic key is not detected or is no
longer in the recognition zone, a message
appears in the instrument panel when closing a
door or trying to switch off the engine. ►

T
o confirm the instruction to switch off the
engine, press the " START/STOP" button for
approximately 5 seconds.
In the event of a fault with the electronic key,
contact a PEUGEOT dealer or a qualified
workshop.
Emergency switch-off
In case of emergency only, the engine can be
switched off without conditions (even when
driving).
►

Press the "
START/STOP" button for about
5
seconds.
In this case, the steering column locks as soon
as the vehicle stops.
On certain versions with automatic gearbox
(EAT6/EAT8), the steering column does not lock.
Electric parking brake
In automatic mode, this system applies the
parking brake when the engine is switched off
and releases it when the vehicle moves off.




At any time, with the engine running:

172
Practical information
Sunroof
Do not operate the sunroof when using
roof bars - risk of major damage!
Bicycle / accessory carrier
Do not attach an accessory carrier to the
tailgate.
Very cold climate screen
(Depending on country of sale)
This removable device prevents the
accumulation of snow around the radiator
cooling fan.
In case of difficulty with installation/
removal
Contact a PEUGEOT dealer or a qualified
workshop.
Before any operation, ensure that the
engine is off and the cooling fan has
stopped.
It is essential to remove them when:
– the outside temperature exceeds
10°C.
–

recovery is in progress.
–


the speed is above 75 mph (120
km/h).
Snow chains
In wintry conditions, snow chains improve
traction as well as the behaviour of the vehicle
when braking.
Snow chains must be fitted only to the
front wheels. They must never be fitted to
"space-saver" type spare wheels.
Observe the legislation in force in your
country relating to the use of snow
chains and maximum authorised speeds.
Only use chains that have been designed to be
fitted to the type of wheel on the vehicle:
Original tyre size Maximum link size 215/60 R16 9 mm
215/55 R17 9 mm
235/45 R18 Cannot be fitted with
chains
(with standard chains)
235/40 R19 Cannot be fitted with chains
(with standard chains)
245/35 R20 Cannot be fitted with
chains
(with standard chains)
For more information, contact a PEUGEOT
dealer or a qualified workshop.
Installation tips
► To fit the snow chains during a journey, stop
the vehicle on a flat surface at the side of the
road.
►

Apply the parking brake and position any
wheel chocks under the wheels to prevent
movement of the vehicle.
►


Fit the snow chains following the instructions
provided by the manufacturer

.
►

Move off gently and drive for a few moments,
without exceeding 31

mph (50 km/h).
►

Stop the vehicle and check that the snow
chains are correctly tightened.
It is strongly recommended that you
practise fitting the snow chains on a level
and dry surface before setting off.
Avoid driving with snow chains on roads that have been cleared of snow to avoid
damaging the vehicle's tyres and the road
surface. If the vehicle is fitted with alloy
wheels, check that no part of the chain or its
fixings is in contact with the wheel rim.
Rechargeable hybrid vehicles
The use of snow chains is only
authorised on the front wheels.
The driving mode selector must be on the
4WD position (depending on version).
Energy economy mode
This system manages the duration of use of
certain functions, in order to conserve a sufficient
level of charge in the battery with the ignition off.
After switching off the engine and for a maximum
cumulative period of around 30 minutes, you can
continue to use functions such as the audio and
telematics system, dipped beam headlamps or
courtesy lamps.
Selecting the mode
A confirmation message is displayed when
energy economy mode is entered, and the active
functions are placed on standby.
If a telephone call is in progress at the
time, it will be maintained for around 10
minutes via the audio system’s hands-free
system.
Exiting the mode
These functions are automatically reactivated the
next time the vehicle is used.
To restore the use of these functions
immediately, start the engine and let it run:
– For less than 10 minutes, to use the
equipment for approximately 5 minutes.
– For more than 10 minutes, to use the
equipment for approximately 30 minutes.
Let the engine run for the specified duration to
ensure that the battery charge is sufficient.

173
Practical information
7Energy economy mode
This system manages the duration of use of
certain functions, in order to conserve a sufficient
level of charge in the battery with the ignition off.
After switching off the engine and for a maximum
cumulative period of around 30 minutes, you can
continue to use functions such as the audio and
telematics system, dipped beam headlamps or
courtesy lamps.
Selecting the mode
A confirmation message is displayed when
energy economy mode is entered, and the active
functions are placed on standby.
If a telephone call is in progress at the
time, it will be maintained for around 10
minutes via the audio system’s hands-free
system.
Exiting the mode
These functions are automatically reactivated the
next time the vehicle is used.
To restore the use of these functions
immediately, start the engine and let it run:
–

For less than 10 minutes, to use the
equipment for approximately 5 minutes.
–


For more than 10 minutes, to use the
equipment for approximately 30 minutes.
Let the engine run for the specified duration to
ensure that the battery charge is sufficient.
To recharge the battery, avoid repeatedly or
continuously restarting the engine.
A flat battery prevents the engine from starting.
For more information on the 12
V battery,
refer to the corresponding section.
Load reduction mode
This system manages the use of certain
functions according to the level of charge
remaining in the battery.
When the vehicle is being driven, the load
reduction function temporarily deactivates certain
functions, such as the air conditioning and the
heated rear screen.
The deactivated functions are reactivated
automatically as soon as conditions permit.
Bonnet
For more information on the Active bonnet,
refer to the corresponding section.
Stop & Start
Before doing anything under the bonnet,
you must switch off the ignition to avoid any
risk of the engine restarting automatically.
Take care with objects or clothing that could
be caught in the blades of the cooling fan
or in certain moving components - risk of
strangulation and serious injury!
Rechargeable hybrid vehicles
Before any work is carried out under the
bonnet, it is essential to switch off the ignition
and disconnect the charging connector nozzle
if it is connected, check that the READY
indicator lamp is off on the instrument panel
and wait 4 minutes - risk of serious injury!
The location of the interior bonnet release lever prevents the bonnet being
opened when the left-hand front door is
closed.
When the engine is hot, handle the
exterior safety catch with care (risk of
burns), using the protected area.
When the bonnet is open, take care not to
damage the safety catch.
Do not open the bonnet under very windy
conditions.

179
Practical information
7The AdBlue® is contained in a special
tank holding about 17 litres.
Its capacity allows a driving range of
approximately 3,900
miles (6,500 km),
which
may vary considerably depending on your
driving style.
An alert system is triggered once the reserve
level is reached: it is then possible to drive for a
further 1,500 miles (2,400

km) before the tank is
empty and the vehicle is immobilised.
For more information on the Warning
and indicator lamps and the associated
alerts, or the Indicators, please refer to the
corresponding sections.
Once the AdBlue® tank is empty, a device
required by law prevents the engine from
being restarted.
If the SCR system is faulty, the level of
emissions from the vehicle will no longer meet
the Euro 6 standard and the vehicle starts
polluting the environment.
In the event of a confirmed SCR system
malfunction, it is essential to visit a
PEUGEOT dealer or a qualified workshop.
After 685 miles (1,100 km), a device is
automatically activated to prevent the engine
from starting.
In both cases, a range indicator indicates
the distance that can be travelled before the
vehicle is stopped.
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
The SCR system includes a heater for the
AdBlue
® tank, allowing you to continue driving
in very cold conditions.
Supply of AdBlue®
It is recommended that the AdBlue® be topped
up as soon as the first alert is issued indicating
that the reserve level has been reached.
For the correct operation of the SCR
system:
–

Use
only AdBlue
® fluid that meets the ISO
22241 standard.
–

Never

transfer AdBlue
® to another container
as it would lose its purity.
–

Never

dilute AdBlue
® with water.
You can obtain AdBlue
® from a PEUGEOT
dealer or a qualified workshop, as well as service
stations equipped with AdBlue
® pumps specially
designed for passenger vehicles.
Recommendations on storage
AdBlue® freezes at about -11°C and deteriorates
above +25°C. Containers should be stored in a
cool area and protected from direct sunlight.
Under these conditions, the fluid can be kept for
at least a year.
If the fluid has frozen, it can be used once it has
completely thawed out at room temperature.
Never store AdBlue® containers in your
vehicle.
Precautions for use
AdBlue® is a urea-based solution. This fluid is
non-flammable, colourless and odourless (when
kept in a cool place).
In the event of contact with the skin, wash the
affected area with soap and running water. In the
event of contact with the eyes, immediately rinse
the eyes with large amounts of water or with an
eye wash solution for at least 15 minutes. Seek
medical attention if you feel a persistent burning
sensation or irritation.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high temperature, for
example), the risk of release of ammonia cannot
be excluded: do not inhale the fluid. Ammonia
vapours have an irritant effect on mucous
membranes (eyes, nose and throat).
Store AdBlue® out of the reach of
children, in its original container.
Procedure
Before starting the top-up procedure, ensure that
the vehicle is parked on a flat and level surface.
In wintry conditions, ensure that the temperature
of the vehicle is above -11°C. Otherwise the
AdBlue
® may be frozen and so cannot be poured
into the tank. Park the vehicle in a warmer area

195
In the event of a breakdown
8Take used remote control batteries and
vehicle batteries to a special collection point.
Protect your eyes and face before
handling the battery.
All operations on the battery must be carried
out in a well ventilated area and away from
naked flames and sources of sparks, to avoid
any risk of explosion or fire.
Wash your hands afterwards.
Accessing the battery
The battery is located under the bonnet.

For access to the (+) terminal:
► Release the bonnet by pulling the internal
release lever
, then the external safety catch.
►

Raise the bonnet.
(+)

Positive terminal.
This terminal has a quick-release clamp.
(-) Negative terminal.
As the battery's negative terminal is not
accessible, a remote earth point is located near
the battery.
Starting using another
battery
If the vehicle's battery is flat, the engine can be
started using a backup battery (either external or
from another vehicle) and jump leads or using a
battery booster.
Never start the engine by connecting a
battery charger.
Never use a 24
V or higher battery booster.
Check beforehand that the backup battery
has a nominal voltage of 12
V and a capacity
at least equal to that of the discharged
battery.
The two vehicles must not be in contact with
each other.
Switch off all electricity-consuming equipment
on both vehicles (audio system, wipers,
lighting, etc.).
Make sure that the jump leads are well away
from the engine’s moving parts (fan, belt,
etc.).
Do not disconnect the (+) terminal while the
engine is running.


► Lift the plastic cover on the (+) terminal, if the
vehicle has one.
►

Connect the red cable to the (+) terminal of
flat battery

A (at the metal elbow), then to the
(+) terminal of the backup battery
B or of the
booster.
►

Connect one end of the green or black cable
to the (-) terminal of the backup battery

B or of
the booster (or to an earth point on the assisting
vehicle).
►

Connect the other end of the green or black
cable to the earth point


C
.
►

Start the engine on the assisting vehicle and
leave it running for a few minutes.
►


Operate the starter on the broken down
vehicle and let the engine run.
If the engine does not start immediately

, switch
off the ignition and wait a few moments before
trying again.
►

W
ait for it to return to idle.
►

Disconnect the jump leads in reverse order.

200
In the event of a breakdown
Accessing the tools

Hatchback
Reconnection
Front battery:

► Connect the (+) terminal by connecting the
red quick-release clamp: •

Raise lever

A
fully.
•

Refit open clamp

B
on the (+) terminal.
•

Push clamp
B fully down.
•

Lower lever

A
to lock clamp B.
Rear battery:
►

Connect the
(-) terminal using the black
quick-release connector.
Following reconnection
After reconnecting the battery, turn on the
ignition and wait 1 minute before starting the
engine, to enable the electronic systems to
initialise.
If minor problems nevertheless persist following
this operation, contact a PEUGEOT dealer or a
qualified workshop.
Referring to the relevant section, reinitialise
certain equipment:
–

Electronic key
.
–

Sunroof and electric blind.
–


Electric windows.
–


Date and time.
–


Preset radio stations.
Towing the vehicle
General recommendations
Observe the legislation in force in the
country where you are driving.
Ensure that the weight of the towing vehicle is
higher than that of the towed vehicle.
The driver must remain at the wheel of the
towed vehicle and must have a valid driving
licence.
When towing a vehicle with all four wheels on
the ground, always use an approved towing
arm; rope and straps are prohibited.
The towing vehicle must move off gently.
When the vehicle is towed with its engine
off, there is no longer braking and steering
assistance.
A professional towing service must be
called if:
–

Broken down on a motorway or main road.
–


Not possible to put
the gearbox into neutral,
unlock the steering, or release the parking
brake.
–

Not possible to tow a vehicle with an
automatic gearbox, with the engine running.
–


T

owing with only two wheels on the ground.
–

Four-wheel drive vehicle.
–


No approved towbar available.
Rechargeable hybrid vehicles
Before any intervention, with the ignition
on, depress the brake pedal and select mode
N, then switch off the hybrid system (READY
indicator lamp off).
Always call on professionals for recovery of
the vehicle on a flatbed lorry or trailer.
Use the towing eye only
to free the vehicle
if it is stuck, or to secure it for recovery on a
flatbed lorry or trailer.