2021 Peugeot 308 engine

144
Practical information
appropriate for the temperature conditions
must be used in order to protect the system's
components (pump, tank, ducts, jets).
Filling with pure water is prohibited in all
circumstances (risk of freezing,
limescale, etc.).
Diesel fuel additive (Diesel
with particle filter)
On reaching the minimum level in the
particle filter additive tank, this warning
lamp comes on fixed, accompanied by an
audible signal and a warning message.
Topping up
This additive must be topped up without delay by
a PEUGEOT dealer or a qualified workshop.
Checks
Unless otherwise indicated, check these
components in accordance with the
manufacturer's service schedule and according
to your engine.
Otherwise, have them checked by a PEUGEOT
dealer or a qualified workshop.
Only use products recommended by
PEUGEOT or products of equivalent
quality and specification.
In order to optimise the operation of
components as important as those in the
braking system, PEUGEOT selects and offers
very specific products.
12 V battery
The battery does not require any maintenance.
However, check regularly that the terminals
are correctly tightened (versions without quick
release terminals) and that the connections are
clean.
For more information on the precautions
to take before any work on the 12 V
battery, refer to the corresponding section.
Versions equipped with Stop & Start are
fitted with a 12 V lead-acid battery of
specific technology and specification.
Its replacement should be carried out only by
a PEUGEOT dealer or a qualified workshop.
Air filter
Depending on the environment and the
use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary .
Passenger compartment
filter
Depending on the environment and the
use of the vehicle (e.g. dusty atmosphere,
city driving), change it twice as often, if
necessary.
A clogged passenger compartment filter
can adversely affect air conditioning
system performance and generate
undesirable odours.
Oil filter
Change the oil filter each time the engine
oil is changed.
Particle filter (Diesel)
When the particle filter is approaching
saturation, this warning lamp comes on
temporarily, accompanied by a message warning
of the risk of the filter clogging.
As soon as the traffic conditions permit,
regenerate the filter by driving at a speed of at
least 37
mph (60 km/h) until the warning lamp
goes off.
If the warning lamp stays on, this
indicates a low Diesel additive level.
For more information on Checking levels,
refer to the corresponding section.
Following prolonged operation of the
vehicle at very low speed or at idle, you
may, in exceptional circumstances, notice
water vapour coming from the exhaust while
accelerating. These emissions have no
impact on the vehicle’s behaviour and the
environment.
New vehicle
During the first few particle filter
regeneration operations, you may notice a
"burning" smell. This is perfectly normal.
Manual gearbox
The gearbox does not require any maintenance (no oil change).
Automatic gearbox
The gearbox does not require any maintenance (no oil change).
Manual parking brake
If you notice excessive brake lever travel
or decreased effectiveness, the parking
brake must be adjusted, even between two
services.
This system must be checked by a PEUGEOT
dealer or a qualified workshop.
Electric parking brake
This system does not require any routine servicing. However, in the event of a
problem, do not hesitate to have the system
checked by a PEUGEOT dealer or a qualified
workshop.

146
Practical information
For your safety and driving comfort, it is
important to have them regularly checked by a
PEUGEOT dealer or a qualified workshop.
Only use products recommended by
PEUGEOT or products of equivalent
quality and specification.
In order to optimise the operation of
components as important as those in the
braking system, PEUGEOT selects and offers
very specific products.
After washing the vehicle, dampness, or in
wintry conditions, ice can form on the brake
discs and pads: braking efficiency may be
reduced. Make light brake applications to dry
and defrost the brakes.
AdBlue® (BlueHDi)
To respect the environment and ensure compliance with the Euro 6 standard, without
adversely affecting the performance or fuel
consumption of its Diesel engines, PEUGEOT
has taken the decision to equip its vehicles
with a system that associates SCR (Selective
Catalytic Reduction) with a Diesel Particle Filter
(DPF) for the treatment of exhaust gases.
SCR system
Using a liquid called AdBlue® that contains
urea, a catalytic converter turns up to 85% of
the nitrogen oxides (NOx) into nitrogen and
water, which are harmless to health and the
environment.
The AdBlue® is contained in a special
tank holding about 17 litres.
Its capacity allows a driving range of
approximately 4,000
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.
You can also visit a service station equipped with AdBlue® pumps specially
designed for passenger vehicles (for versions
with access to the AdBlue
® tank via the fuel
filler flap).
Never top up from an AdBlue® dispenser
reserved for heavy goods vehicles.
Storage recommendations
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 in the ambient air.
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

147
Practical information
7Never top up from an AdBlue® dispenser
reserved for heavy goods vehicles.
Storage recommendations
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 in the ambient air.
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
for a few hours to allow the top-up to be carried
out.
Never pour the AdBlue® into the Diesel
fuel tank.
For specific information about how to
access the AdBlue tank, refer to the
detailed descriptions below.
If any AdBlue® is splashed, or if there are
any spillages on the bodywork, rinse
immediately with cold water or wipe with a
damp cloth.
If the fluid has crystallised, clean it off using a
sponge and hot water.
Important: in the event of a top-up after
a breakdown because of a lack of
AdBlue, it is essential to wait around 5
minutes before switching on the ignition,
without opening the driver’s door,
unlocking the vehicle, introducing the key
into the ignition switch, or introducing the
key of the “

Keyless Entry and Starting

”
system into the passenger compartment

.
Switch on the ignition, then wait for 10
seconds before starting the engine.
Access to the AdBlue®
A blue cap under the fuel filler flap indicates
access to the AdBlue® tank.

– Switch off the ignition and remove the key .
► T urn the AdBlue® tank's blue filler cap
anti-clockwise.
►

Obtain an

AdBlue
® container (check the
use-by date) and pour the contents of the
container into your vehicle's AdBlue
® tank.
Or

148
Practical information
► Insert the AdBlue® pump nozzle and refill the
tank until the nozzle stops automatically.
Important:
To avoid overfilling the AdBlue® tank, it is
recommended:
►

T

o top up between 10 and 13 litres using
AdBlue
® containers.
Or
►

When filling at a service station, to stop
after the third automatic cut-off of the nozzle.
Free-wheeling
In certain situations, you must allow the vehicle
to free-wheel (while being towed, on a rolling
road, in an automatic car wash, or being
transported by rail or sea freight, etc.).
The procedure varies according to the type of
gearbox and parking brake.
With a manual gearbox and
electric parking brake
/
Release procedure
► With the engine running and while depressing
the brake pedal, move the gear selector to the
neutral position.
►

While depressing the brake pedal, switch off
the ignition. ►


Release the brake pedal, then switch on the
ignition again.
►

While depressing the brake pedal, press the
control lever to release the parking brake.
►

Release the brake pedal, then switch off the
ignition.
Reverting to normal operation
► While depressing the brake pedal, start the
engine.
With an automatic gearbox
and electric parking brake
/
Release procedure
► With the vehicle stationary and the engine
running, select mode N and switch off the
ignition.
Within 5
seconds:
►

Switch on the ignition again.
►


While depressing the brake pedal, move the
push selector forwards or backwards to confirm
mode

N.
►

While depressing the brake pedal, press the
control lever to release the parking brake.
►


Release the brake pedal, switch off the
ignition.
If the 5-second time limit is exceeded, the
gearbox engages mode P

; it is then necessary to
restart the procedure.
Reverting to normal operation
► While depressing the brake pedal, restart the
engine.
Keyless Entry and Starting
You must not depress the brake pedal
while switching the ignition on or off. If you do,
the engine will start, requiring you to restart
the procedure.
Advice on care and maintenance
General recommendations
Observe the following recommendations to avoid
damaging the vehicle.
Exterior
Never use a high-pressure jet wash in
the engine compartment - risk of
damaging the electrical components!
Do not wash the vehicle in bright sunshine or
extremely cold conditions.
When washing the vehicle in an
automatic roller-brush car wash, be sure
to lock the doors and, depending on version,
move the electronic key away and deactivate

155
In the event of a breakdown
8Tyre inflation pressures are indicated on this label.
► Start the vehicle and leave the engine
running.
Do not start the compressor before
connecting the white pipe to the tyre
valve: this would cause the sealant product to
be expelled through the pipe.
►

Switch on the compressor by moving switch
B

to position I and inflate the tyre until its
pressure reaches 2.0 bars. The sealant product
is injected under pressure into the tyre; do not
disconnect the pipe from the valve during this
operation (risk of blowback).
If, after approximately seven minutes,
this pressure is not reached, this
indicates that the tyre is irreparable; contact a
PEUGEOT dealer or a qualified workshop for
assistance.
►

Remove the kit and screw the cap back on to
the white pipe. Be careful not to leave traces of
fluid on your vehicle. Keep the kit within reach.
Please note, the sealant product is
harmful if swallowed and causes irritation
to the eyes.
Keep this product out of the reach of children.


► Drive immediately for approximately 3 miles
(5 kilometres) at reduced speed (between
12 and 37 mph (20 and 60
km/h)) to plug the
puncture.
►

Stop to check the repair
and the tyre
pressure using the kit.
2. Inflation

► Turn selector A to the "Inflation"
position.
►

Uncoil the white pipe G

fully.
► Connect the white pipe to the valve on the
repaired tyre.
►

Reconnect the compressor's electric plug to
the vehicle's 12V socket.
Only the 12V socket located at the front
of the vehicle can be used.
Tyre inflation pressures are indicated on this label.
► Restart the vehicle and leave the engine
running.
Go to a PEUGEOT dealer or a qualified
workshop as soon as possible.
You must inform the technician that you have
used this kit. After inspection, the technician
will advise you on whether the tyre can be
repaired or if it must be replaced.
►

Adjust the tyre pressure using the
compressor (to inflate: set switch

B to position I;
to deflate: set switch B to position O and press
button C), following the vehicle's tyre pressure
label located by the driver's door.
A subsequent loss of pressure indicates that
the puncture has not been fully sealed; contact
a PEUGEOT dealer or a qualified workshop to
have your vehicle repaired.

156
In the event of a breakdown
► Remove the kit and stow it.
Drive at reduced speed (50 mph
(80 km/h) max.), limiting the distance
travelled to approximately 125 miles
(200
km).
Removing the pipe and
cartridge


► Turn the pipe assembly 2 to the left until it
comes into contact with the unit.
►

Disconnect the connector 1

from the cartridge
by turning it a quarter turn anti-clockwise.
►

Pull the pipe assembly 2

out slightly, then
disconnect the connector 3 from the air intake
pipe by turning it a quarter turn anti-clockwise.


– Remove the pipe assembly 2 .
– Keep the compressor vertical.
–

Unscrew the cartridge 4

from the bottom.
To fit the new cartridge and new pipe, carry out
these operations in reverse order.
Be careful of fluid discharge.
The expiry date of the fluid is indicated
on the cartridge.
The sealant cartridge is designed for single
use; it must be replaced even if only partly
used.
After use, do not discard the cartridge into the
environment, take it to an authorised waste
disposal site or a PEUGEOT dealer.
Do not forget to obtain a new sealant
cartridge, available from PEUGEOT dealers
or from a qualified workshop.
Checking/adjusting tyre
pressures
Use the compressor, without injecting
any sealant, to check and, if necessary,
adjust the tyre pressures.


► Turn selector A to the "Inflation"
position.
►

Uncoil the white pipe G

fully.
►

Connect the pipe to the tyre valve.
►


Connect the compressor's electric plug to the
vehicle's 12V socket.
Only the 12V socket located at the front
of the vehicle can be used.
►

Restart the vehicle and leave the engine
running.
Tyre inflation pressures are indicated on this label.
► Adjust the pressure using the compressor
(to inflate: set switch B to position "I"; to deflate:
set switch B to position "O" and press button C),
following the vehicle's tyre pressure label.
If, after approximately seven minutes,
this pressure is not reached, this
indicates that the tyre is irreparable; contact a
PEUGEOT dealer or a qualified workshop for
assistance.
► Remove the kit and stow it.
Do not drive more than 125 miles
(200 km) with a repaired tyre; see a
PEUGEOT dealer or a qualified workshop to
have the tyre changed.
Should the pressure of one or more tyres
be adjusted, it is necessary to reinitialise
the under-inflation detection system.
For more information on Tyre under-inflation
detection, refer to the corresponding section.

162
In the event of a breakdown
With "full LED" technology
headlamps


1.Daytime running lamps/Sidelamps (LED).
2. Dipped beam headlamps (LED).
3. Main beam headlamps (LED).
4. Direction indicators (LED).
5. Front foglamps (H11).
Access to front lamps (halogen
model)
Opening the bonnet/Access to 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!


To facilitate access to the front lamps, the
headlamp assembly must first be moved forward
a few centimetres:
►

Move the orange clip towards the rear then
while pressing on the black part (located above
the orange clip), pull on the connector

.
►

Remove the two screws that hold the lamp
unit in place.
►


Disengage the rear pin then the front centring
piece.
►


Move the lamp unit forwards.
Dipped beam headlamps/Main beam
headlamps (halogen model)


► Remove the protective plastic cover by
pulling the tab.
►

Disconnect the bulb connector
.
►

Detach the two springs (press then remove
towards the outside).
►


Pull out the bulb and replace it.
The zone behind the right-hand lamp may reach a high temperature
(degassing hoses nearby): risk of burns.
Front foglamps


► Unclip the trim by pulling at the top (notch).
► Unscrew the 2 screws to remove the unit
from its housing.

168
In the event of a breakdown
Table of fuses
FuseN° Rating
(A) Functions
F9 5Alarm,
emergency
and assistance
calls.
F13 5Reversing
camera
and parking
sensors.
F15 1512V accessory
socket.
F16 15Cigarette
lighter.
F18 20Touch screen,
CD player,
audio and
navigation
system.
F19 5Rain, sunshine
sensor.
F20 5Airbags.
F21 5Instrument
panel.
F22/F24 30 Internal/
external locks,
front and rear.
Fuse
N° Rating
(A) Functions
F23 5Glove
box lamp,
courtesy
mirror,
front and rear
courtesy lamps.
F25/F27 15 Front/rear
screenwash
pump.
F26 15Horn.
F30 15Rear wiper.


Fuses in the engine
compartment
The fusebox is located in the engine
compartment near the battery.
Accessing the fuses

► Unclip the cover .
► Change the fuse.
►

After the operation, close the cover very
carefully to ensure the fusebox is properly
sealed.
Table of fuses
Fuse N° Rating
(A) Functions
F13 5Built-in systems
interface.
F16 15Front foglamps.
F18 10Right-hand
main beam
headlamp.
F19 10Left-hand
main beam
headlamp.