2021 PEUGEOT 508 engine

183
In the event of a breakdown
8Warning triangle
This reflective and dismantlable device is to be
installed on the side of the road when a vehicle
is broken down or damaged.
Before getting out of the vehicle
Turn on the hazard warning lamps, then
put on the safety vest to assemble and install
the triangle.
Storage compartment

There is a compartment in the interior trim of the
tailgate to store a warning triangle.
►

After opening the tailgate, release the cover
by turning the screw a quarter turn to the left.
Assembling and placing the triangle


For versions supplied with a triangle as original
equipment, refer to the illustration above.
For other versions, refer to the assembly
instructions provided with the triangle.
►

Put the triangle in place behind the vehicle,
as required by local legislation.
Running out of fuel
(Diesel)
With Diesel engines, the fuel system must be
primed if you run out of fuel.
Before starting to prime the system, it is
essential to put at least 5 litres of Diesel into the
fuel tank.
For more information on Refuelling and
on Misfuel prevention (Diesel), refer to
the corresponding section.
For non-BlueHDi versions, the fuel system
components are located in the engine
compartment; this may be under a removable
cover.
For more information on the Engine
compartment, in particular the location
of these components under the bonnet, refer
to the corresponding section.
1.5 BlueHDi engines
► Switch on the ignition (without starting the
engine).
►

W
ait around 1 minute and switch off the
ignition.
►

Operate the starter motor to start the engine.
If the engine does not start at the first attempt,
do not keep trying, but restart the procedure.
2.0 BlueHDi engines
► Switch on the ignition (without starting the
engine).
►

W
ait around 6 seconds and switch off the
ignition.
►

Repeat the operation 10
times.
►

Operate the starter motor to start the engine.
If the engine does not start at the first attempt,
do not keep trying, but restart the procedure.

184
In the event of a breakdown
The jack must only be used to change a wheel with a damaged or punctured tyre.
Do not use any jack other than the one
supplied with the vehicle.
If the vehicle does not have its original jack,
contact a PEUGEOT dealer or a qualified
workshop to obtain the one that was intended
by the manufacturer.
The jack meets European standards, as
defined in the Machinery Directive 2006/42/
CE.
The jack does not require any maintenance.
List of tools

1. Chock to immobilise the vehicle (depending
on equipment)
2. Socket for the wheel security bolts (located in
the glove box) (depending on equipment)
To adapt the wheelbrace to the special
‘security’ bolts.
3. Removable towing eye
Non-BlueHDi engines
► Open the bonnet and then, if necessary ,
unclip the cover to access the priming pump.
►

Loosen the degassing bolt.
► Operate the priming pump until fuel
appears in the transparent tube.
►

Retighten the degassing bolt.
►


Operate the starter motor until the engine
starts (if the engine does not start at the first
attempt, wait around 15

seconds before trying
again).
►

If the engine does not start after a few
attempts, operate the priming pump again, then
the starter motor

.
►

Put the cover back in place and clip it in, then
close the bonnet.
Tool kit
Set of tools supplied with the vehicle.
Its content depends on your vehicle's equipment:
–

T
emporary puncture repair kit.
–

Spare wheel.
Accessing the tools
The tool kit is stored in the boot, under the floor.

Hatchback
To access it:
►
Open the boot.
►


Lift up the floor and fold it back on itself.

SW
To access it:
►
Open the boot.
►


Lift up the floor
.
► Attach the floor hook to the upper boot seal.
With temporary puncture repair kit

With spare wheel

These tools are specific to the vehicle and may vary according to the level of
equipment.
Do not use them for any other purpose.

192
In the event of a breakdown
Direction indicators
Rapid flashing of the indicator lamp for a
direction indicator (left or right) indicates
that one of the bulbs on the corresponding
side has failed.


► Turn the connector a quarter turn
anti-clockwise.
► Pull the bulb connector.
► Remove the bulb and replace it.
Amber-coloured bulbs must be replaced
by bulbs with identical specifications and
colour.
Light-emitting diode (LED)
headlamps and lamps
Depending on version, the affected types of
headlamps/lamps are:
–

Full LED technology headlamps.
–


Offset daytime running lamps.
–


Direction indicator side repeaters.
–


Side spotlamps.
–


3D rear lamps.
–


Third brake lamp.
–


Number plate lamps.
If you need to replace this type of bulb,
you must contact a PEUGEOT dealer or
a qualified workshop.
Do not touch the "Full LED" technology
headlamps or lamps - risk of electrocution!
Front lamps
Model with "Full LED" technology
lamps


1. Daytime running lamps / Sidelamps /
Direction indicators
2. Dipped beam headlamps
3. Main beam headlamps
4. Static cornering lamps
Model with halogen lamps

1.Daytime running lamps / Sidelamps (LEDs)
2. Main beam headlamps (H7)
3. Dipped beam headlamps (H7)
4. Direction indicators (PWY24W).
Opening the bonnet/Accessing the
bulbs
Proceed with caution when the engine is hot -
risk of burns!
Take care with objects or clothing that could
be caught in the blades of the cooling fan -
risk of strangulation!
Halogen bulbs (Hx)
To ensure good quality lighting, check
that the bulb is correctly positioned in its
housing.

194
In the event of a breakdown
Take 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.
Model with adaptive 3D Full LED
lamps


1. Direction indicators (LED)
2. Brake lamps (LED)
3. Sidelamps / Daytime running lamps (LED)
4. Reversing lamps (P21W)
5. Foglamps (P21W)
Reversing lamps / Foglamps.

Reversing lamps

Foglamps
These bulbs are replaced from outside the rear
bumper.
►

Pass your hand under the bumper
.
►

T
urn the bulb holder a quarter turn and
remove it.
►

T
urn the bulb a quarter turn and replace it.
To change the bulb within a few minutes of switching off the ignition, take care not
to touch the exhaust - risk of burns!
Fuses
Changing a fuse
All work must be carried out only by a
PEUGEOT dealer or a qualified workshop
The replacement of a fuse by a third party
could cause a serious malfunction of the
vehicle.
Installing electrical accessories
The vehicle's electrical system is
designed to operate with standard or optional
equipment.
Before fitting other electrical equipment
or accessories to your vehicle, contact a
PEUGEOT dealer or a qualified workshop.
PEUGEOT accepts no responsibility for
the cost incurred in repairing the vehicle
or for rectifying malfunctions resulting from
the installation of accessories not supplied or
not recommended by PEUGEOT and not
installed in accordance with its
recommendations, in particular when the
combined power consumption of all of the
additional equipment connected exceeds 10
milliamperes.
12 V battery
Procedure for starting the engine using another
battery or for charging a discharged battery.
Lead-acid starter batteries
These batteries contain harmful substances (sulphuric acid and lead).
They must be disposed of in accordance
with regulations and must never under any
circumstances be discarded with household
waste.

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.

196
In the event of a breakdown
Before disconnecting the battery:
► Close all openings (doors, boot, windows,
roof).
► Switch off all electricity-consuming devices
(audio system, wipers, lamps, etc.).
► Switch off the ignition and wait for 4 minutes.
After accessing the battery, it is only necessary
to disconnect the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal

► Depending on equipment, lift the plastic cover
on the (+) terminal.
► Raise lever A fully to release clamp B.
► Remove clamp B by lifting it off.
► Refit the plastic cover to the (+) terminal, if
the vehicle has one.
►

Allow the engine to run for at least
30

minutes, with the vehicle stationary, so that
the battery reaches an adequate state of charge.
Driving immediately without having
reached a sufficient level of charge may
affect some of the vehicle's functionalities.
Automatic gearbox
Never try to start the engine by pushing
the vehicle.
Charging the battery using a
battery charger
For optimum service life of the battery, it is
essential to maintain an adequate state of
charge.
In some circumstances, it may be necessary to
charge the battery:
–

When using the vehicle mainly for short
journeys.
–


If the vehicle is to be taken off the road for
several weeks.
Consult a PEUGEOT

dealer or a qualified
workshop.
To charge the vehicle's battery yourself, use only a charger compatible with
lead-acid batteries with a nominal voltage of
12

V.
Follow the instructions provided by the
manufacturer of the charger.
Never reverse polarities.
It is not necessary to disconnect the
battery.
►

Switch the ignition off.
►


Switch off all electrical consumers (audio
system, lighting, wipers, etc.).


► Switch off charger B before connecting
the cables to the battery, so as to avoid any
dangerous sparks.
►

Ensure that the charger cables are in good
condition.
►


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


Connect the cables of charger B

as follows:
•

the positive (+) red cable to the (+) terminal
of battery

A,
•

the negative (-) black cable to earth point C


on the vehicle.
► At the end of the charging operation, switch
off charger B
before disconnecting the cables
from battery A.
If this label is present, use only a 12 V
charger to avoid causing irreversible
damage to the electrical components.
24V
12V
Never try to charge a frozen battery - risk
of explosion!
If the battery has frozen, have it checked by a
PEUGEOT dealer or by a qualified workshop
who will verify that the internal components
have not been damaged and that the case
has not cracked, which would mean a risk of
toxic and corrosive acid leaking.
Some functions, including Stop & Start,
are not available if the battery is not
sufficiently charged.
Disconnecting the battery
In order to maintain an adequate state of
charge for starting the engine, we recommend
disconnecting the battery if the vehicle is to be
unused for an extended period.

197
In the event of a breakdown
8Before disconnecting the battery:
► Close all openings (doors, boot, windows,
roof).
►

Switch off all electricity-consuming devices
(audio system, wipers, lamps, etc.).
►


Switch off the ignition and wait for 4
minutes.
After accessing the battery, it is only necessary
to disconnect the (+) terminal.
Quick-release terminal clamp
Disconnecting the (+) terminal

► Depending on equipment, lift the plastic cover
on the (+) terminal.
►

Raise lever

A
fully to release clamp
B
.
►

Remove clamp

B
by lifting it off.
Reconnecting the (+) terminal

► Raise lever A fully.
► Refit open clamp B on the (+) terminal.
►

Push clamp
B fully down.
►

Lower lever

A
to lock clamp B.
►

Depending on equipment, lower the plastic
cover on the

(+) terminal.
Do not force the lever when pressing on
it, as if the clamp is not positioned
correctly, locking will then not be possible.
Start the procedure again.
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.
After reconnecting the battery, the message "Collision risk detection
system fault" is displayed on the instrument
panel when the ignition is switched on. This
operation is perfectly normal. The message
will disappear while driving.
The Stop & Start system may not be operational during the trip following the
first engine start.
In this case, the system will only be available
again after a continuous period with the
vehicle immobilised, the duration of which
depends on the exterior temperature and the
state of charge of the battery (up to about 8
hours).
Accessory battery (Rechargeable hybrid)
The rechargeable hybrid system has two
accessory batteries: one at the front and one at
the rear of the vehicle.

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.