2023 PEUGEOT 508 Owners Manual

183
In the event of a breakdown
8Accessing 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 with a quick-release
terminal.
(-) 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.
►


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 functions (e.g.
Stop & Start).
Charging the battery using a battery
charger
For optimum service life of the battery, it is
essential to maintain an adequate state of
charge.

184
In the event of a breakdown
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
Disconnecting/reconnecting 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.
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.

185
In the event of a breakdown
8Quick-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.
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).
With Rechargeable hybrid
engines
The rechargeable hybrid system has two accessory batteries: one at the front and one at
the rear of the vehicle.
Replacing the accessory batteries
Contact a PEUGEOT dealer or a
qualified workshop.
Jump-starting another vehicle
Do not start or jump-start another vehicle
using the vehicle’s accessory batteries.
Accessing the accessory batteries
Front
The front 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 with a quick-release
terminal.
(-) Negative terminal.
As the battery's negative terminal is not
accessible, a remote earth point is located near
the battery.
Rear
The rear battery is located in the boot.
To reach the battery:

186
In the event of a breakdown


► Lift the boot floor.
(+) Positive terminal, protected by a red plastic
cover (not accessible).
(-) Negative terminal with a black quick-release
connector.
Charging the front battery using a
battery charger
For optimum service life of the front battery, it
is essential to maintain an adequate state of
charge.
In some circumstances, it may be necessary to
charge the front 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 front 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:
•

Positive (+) red cable to the (+) terminal on
battery

A.
•

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.
Disconnecting/reconnecting the
accessory batteries
Procedure for disconnecting/reconnecting the
accessory batteries in the event of long-term
immobilisation of the vehicle.
Before disconnecting the accessory batteries:
►

Open the driver's door and boot.
►


Close all other doors.
►


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


Switch off the ignition and wait for the
READY

indicator lamp to go out.
►

Observe a waiting time of 4 minutes.
Never reverse the order of the steps for
disconnecting and reconnecting the

187
In the event of a breakdown
8accessory batteries - risk of irreversible
damage!
Disconnection
Rear battery:
► Disconnect the (-)
terminal using the black
quick-release connector.
Front battery:


► Disconnect the (+) terminal by disconnecting
the red quick-release clamp: •

Raise lever

A
fully to release clamp
B
.
•

Remove clamp

B
by lifting it off.
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.
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.
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.

188
In the event of a breakdown
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.
– Towing 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.
Towing constraints
Type of vehicle
(engine/gearbox) Front wheels on the
ground Rear wheels on the
ground Flatbed
4 wheels on the ground
with towbar
Internal combustion/Automatic


Hybrid 2WD

Hybrid 4WD

2WD: 2-wheel drive.
4WD: 4-wheel drive.
In case of battery or electric parking brake failure, it is essential to call a p
rofessional using flatbed recovery vehicles.

189
In the event of a breakdown
8Accessing the tools

Sedan

SW
The towing eye is stored in a tool box, under the
boot floor.
For more information on accessing the Tool kit,
refer to the corresponding section.
Towing your vehicle
To access the front screw thread:

► Unclip the cover , using the tool attached to
the towing eye.
►

Release the cover to the right and then
downwards.
T

o be towed:
►

Screw the towing eye in fully
.
►

Install the towbar
.
►

Put the gearbox into neutral.
Failure to observe this instruction could
result in damage to certain components
(e.g. braking, transmission) and to the
absence of braking assistance the next time
the engine is started.
Never tow the vehicle with the driving
wheels on the ground and the engine off. ►

Unlock the steering and release the parking
brake.
►

Switch on the hazard warning lamps on both
vehicles in accordance with the legislation in
force in the country in which you are driving.
►

Move off gently
, drive slowly and only for a
short distance.
Towing another vehicle
To access the rear screw thread:

► Unclip the cover by pressing on its lower
section.
T
o tow:
►

Screw the towing eye in fully
.
►

Install the towbar
.
►

Switch on the hazard warning lamps on both
vehicles.
►


Move off gently
, drive slowly and only for a
short distance.

190
Technical data
Engine technical data and
towed loads
Engines
The engine characteristics are given in the
vehicle's registration document, as well as in
sales brochures.
Only the values available at the time of
publication are presented in the tables.
Contact a PEUGEOT dealer or a qualified
workshop to obtain missing values.
The maximum power corresponds to the value type-approved on a test bed, under
conditions defined by European legislation
(Directive 1999/99/EC).
For more information, contact a PEUGEOT
dealer or a qualified workshop.
Weights and towed loads
The weights and towed loads relating to
the vehicle are indicated on the registration
document, as well as in sales brochures.
These values are also indicated on the
manufacturer's plate or label.
For more information, contact a PEUGEOT
dealer or a qualified workshop.
The GTW (Gross Train Weight) and towed load
values indicated are valid up to a maximum
altitude of 1,000 metres. The towed load value
must be reduced by 10% for each additional
1,000 metres of altitude.
The maximum authorised nose weight
corresponds to the weight permitted on the
towball.
When exterior temperatures are high, the
vehicle performance may be limited in
order to protect the engine. When the exterior
temperature is higher than 37°C, reduce the
towed weight.
Towing even with a lightly loaded vehicle can adversely affect its road holding.
Braking distances are increased when towing
a trailer.
When using a vehicle to tow, never exceed
a speed of 62 mph (100
km/h) (observe the
local legislation in force).