2021 Peugeot 308 engine

131
Practical information
7Compatibility of fuels
Petrol fuels conforming to the EN228 standard
containing up to 5% and 10% ethanol
respectively.
Diesel fuels conforming to the EN590, EN16734
and EN16709 standards and containing up to
7%, 10%, 20% and 30% fatty acid methyl ester
respectively. The use of B20 or B30 fuels, even
occasionally, imposes special maintenance
conditions referred to as "Arduous conditions".
Paraffinic Diesel fuel conforming to the EN15940
standard.
The use of any other type of (bio) fuel (vegetable or animal oils, pure or diluted,
domestic fuel, etc.) is strictly prohibited (risk
of damage to the engine and fuel system).
The only fuel additives authorised for use are those that meet the B715001 (petrol)
or B715000 (Diesel) standards.
Diesel at low temperature
At temperatures below 0 °C (+32 °F), the
formation of paraffins in summer-type Diesel fuels could prevent the engine from operating
correctly. In these temperature conditions, use
winter-type Diesel fuel and keep the fuel tank
more than 50
% full.
At temperatures below -15 °C (+5 °F) to avoid
problems starting, it is best to park the vehicle
under shelter (heated garage).
Travelling abroad
Certain fuels could damage your vehicle’s
engine.
In certain countries, the use of a particular
fuel may be required (specific octane rating,
specific trade name, etc.) to ensure correct
operation of the engine.
For all additional information, consult a dealer.
Refuelling
Fuel tank capacity: approximately 53 litres (or
45 litres depending on version).
Reserve level: approximately 6 litres.
Low fuel level
When the low fuel level is reached, this
warning lamp lights up on the instrument
panel, accompanied by the display of a message
and an audible signal. When it first comes on,
about 6 litres of fuel remain.
Until sufficient fuel is added, this warning lamp
appears every time the ignition is switched on,
accompanied by an onscreen message and
an audible signal. When driving, this message
and audible signal are repeated with increasing
frequency as the fuel level drops towards 0.
You must refuel as soon as possible to avoid
running out of fuel.
For more information on Running out of fuel
(Diesel), refer to the corresponding section.
A small arrow by the warning lamp indicates which side of the vehicle the
fuel filler flap is located on.
Stop & Start
Never refuel with the engine in STOP
mode; you must switch off the ignition.
Refuelling
At least 6 litres of fuel must be added in order to
be registered by the fuel gauge.
Opening the filler cap may create a noise caused
by an inrush of air. This is entirely normal and
results from the sealing of the fuel system.

132
Practical information
► Take care to select the pump that delivers the
correct fuel type for your vehicle's engine (see a
reminder label on the inside of the filler flap).
►
Insert the key into the filler cap, if your vehicle
has a standard key

.
►

T
urn the filler cap to the left.


► Remove the filler cap and hang it on its
carrier (on the filler flap).
►

Insert the nozzle as far as it will go (pressing
against the metal non-return valve A

).
►

Fill the tank.
Do not continue past the
third nozzle cut-off, as this may cause
malfunctions.
►

Put the filler cap back in place and close it by
turning it to the right.
►


Push the fuel filler flap to close it (your
vehicle must be unlocked).
Y

our vehicle is fitted with a catalytic converter, a
device which helps to reduce the level of harmful
emissions in exhaust gases.
For petrol engines, you must use unleaded
fuel.
The filler neck is narrower, admitting petrol
nozzles only.
If you have put in the wrong fuel for
your vehicle, you must have the fuel
tank drained and filled with the correct fuel
before starting the engine.
For the THP 225 S&S EAT8 engine, the use
of RON98 unleaded petrol is recommended to
ensure optimum engine performance.
Fuel cut-off
Your vehicle is fitted with a safety system that
cuts off the supply of fuel in the event of an
impact.
Diesel misfuel prevention
Mechanical device which prevents filling the tank
of a Diesel vehicle with petrol. It avoids the risk
of engine damage that can result from filling with
the wrong fuel.
Located in the filler neck, the misfuel prevention
device appears when the filler cap is removed.


When a petrol filler nozzle is introduced into the
fuel filler neck of a Diesel vehicle, it comes into
contact with the flap. The system remains closed
and prevents filling.
Do not persist but instead insert a Diesel
filler nozzle.
It is still possible to use a fuel can to fill
the tank slowly.
In order to ensure a good flow of fuel, do
not place the nozzle of the fuel can in direct
contact with the flap of the misfuel prevention
device.
Travelling abroad
As Diesel fuel pump nozzles may be
different in other countries, the presence
of the misfuel prevention device may make
refuelling impossible.
Before travelling abroad, it is advisable to
check with a PEUGEOT dealer if the vehicle
is suitable for the distribution equipment of the
countries visited.
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 for the
type of wheel fitted to your vehicle. Original tyre size Type of chain195/65 R15 9 mm link
205/55 R16
225/45 R17
225/40 R18 K-Summit K23
235/35 R19 Polaire Grip 70
For more information, contact a PEUGEOT
dealer or a qualified workshop.
Installation tips
► To fit the chains during a journey, stop the
vehicle on a flat surface on the side of the road.
► Apply the parking brake and position any
wheel chocks under the wheels to prevent
movement of the vehicle.

133
Practical information
7Snow 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 for the
type of wheel fitted to your vehicle.
Original tyre size Type of chain 195/65 R15 9 mm link
205/55 R16
225/45 R17
225/40 R18 K-Summit K23
235/35 R19 Polaire Grip 70
For more information, contact a PEUGEOT
dealer or a qualified workshop.
Installation tips
► To fit the chains during a journey, stop the
vehicle on a flat surface on 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 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 before
you leave, you practise fitting the snow
chains on a level and dry surface.
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.
Very cold climate screen
Removable protective screen which prevents the
accumulation of snow at the radiator cooling fan.
It is recommended that the screen be
fitted and removed by a PEUGEOT
dealer or a qualified workshop.
Before any operation, ensure that the
engine is off and the cooling fan has
stopped.
Fitting

► Position the screen in front of the top part of
the upper grille in the front bumper .
►

Press the screen to clip the fixing clips.
Do not fit the very cold climate screen if
the vehicle has the PureTech 263 S&S
BVM6 engine.
Removing
► Use a screwdriver as a lever to release each
fixing clip in turn.
Do not forget to remove the very cold
climate screen:
–

when the external temperature is greater
than 10°C (e.g. in summer),
–


in the event of a recovery
,
–

at speeds above 75 mph (120 km/h).

134
Practical information
Towing device
Load distribution
► Distribute the load in the trailer so that the
heaviest items are as close as possible to the
axle, and the nose weight approaches the
maximum permitted without exceeding it.
Air density decreases with altitude, thus reducing
engine performance.
The maximum towable load
must be reduced by 10% per 1,000
metres of
altitude.
Use genuine towing devices and their
wiring harnesses approved by
PEUGEOT. We recommend having them
fitted by a PEUGEOT dealer or a qualified
workshop.
If not fitted by a PEUGEOT dealer, they must
still be fitted in accordance with the vehicle
manufacturer's instructions.
Certain driving or manoeuvring aid functions
are automatically deactivated while an
approved towing system is in use.
Comply with the maximum authorised
towable weight, as indicated on your
vehicle's registration certificate, on the
manufacturer's label and in the Technical
data section of this guide.
Complying with the maximum authorised
nose weight (towball weight) also includes
the use of accessories (bicycle carriers,
tow boxes, etc.).
Observe the legislation in force in the
country where you are driving.
GTi towing
Your vehicle cannot be fitted with a
tow-bar.
Towing device with towball
Before each use
To ensure the towball is correctly fitted,
check the follow points:
Saloon:
–

The green mark on the wheel is in line with
the green mark on the towball.
–


The wheel is in contact with the towball
(position A

).
–

The safety lock is on and the key removed;
the wheel can no longer be operated.
–


The towball must not be able to move in
its carrier; test by attempting to move it with
your hand.
SW :
–


The towball is correctly engaged (position
A

).
–

The safety lock is on and the key removed;
the trigger can no longer be operated.
–


The towball must not be able to move in
its carrier; test by attempting to move it with
your hand.
If the towball is not engaged, the trailer can
become detached -

Accident risk!
During use
Never release the locking system when
a trailer or load carrier is connected to the
towball.
Never exceed the maximum authorised
weight for the vehicle - Gross Train Weight
or GTW.
Always comply with the maximum authorised
load on the towing device: if it is exceeded,
this device may become detached from the
vehicle - risk of an accident!
Check that the trailer lamps work correctly.
Before setting off, check and/or adjust
headlamp beam height.
For more information on Headlamp height
adjustment, refer to the corresponding
section.
Following use
When travelling without a trailer or load
on a towbar-mounted carrier, the towball
must be removed and the protective plug
inserted in the carrier. This measure applies
particularly where the towball might obscure
visibility of the number plate or its lighting.
Blanking plug

In the event of recovery, it is essential to remove
the blanking plug if your vehicle has one.
To do this, contact a PEUGEOT dealer or a
qualified workshop.
The blanking plug behind the lower air intake grille.
Towbar with quickly detachable towball
(hatchback)
Presentation
This genuine towing device can be fitted and
removed with no need for tools.

139
Practical information
7► Lift the protective cover on the connection
socket and connect the trailer's electric plug.
Removing the towball
► Disconnect the trailer's electric plug from the
connection socket on the carrier .
►

Detach the trailer safety cable from the safety
eye on the carrier

.
►

Unhitch the trailer from the towball.

► Unclip the protective cap and remove it by
turning it to the right.
►

Insert the key into the lock and turn it to the
left.
►


Remove the key from the lock.

► On the towball, push the latch to the left and
hold it in this position.
►

At the same time, push the trigger forwards to
unlock the mechanism (position B

).
►

Press the trigger fully in and unhitch the
towball by pulling it towards you.
►


Install the protective plug and clip it into place
on the carrier

located below the rear bumper.
►

Stow the towball in its bag.
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, you can still
use functions such as the audio and telematic
system, the wipers and the dipped beam
headlamps or courtesy lamps, for a combined
duration of approximately 40 minutes.
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.
T

o 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.

141
Practical information
7On a long journey, check the security of the
load at every stop.
Remove the roof bars once they are no longer
needed.
Bonnet
Opening
► Open the left-hand front door.

► Pull the release lever , located at the bottom
of the door frame, towards you.


► Pull the safety catch towards you, then raise
the bonnet.


► Unclip the stay from its housing and place it
in the support slot to hold the bonnet open.
Do not open the bonnet in very windy
conditions.
When the engine is hot, handle the exterior
safety catch and the stay with care (risk of
burns).
In order to avoid damaging the electrical
units, you must never use high pressure
washing to clean the engine compartment.
Closing
► Take the stay out of the support slot.
► Clip the stay in its housing.
►

Lower the bonnet and release it near the end
of its travel.
►


Pull on the bonnet to check that it has latched
correctly

.
Stop & Start
Before doing anything under the bonnet,
you must switch off the ignition to avoid any
risk of injury resulting from an automatic
change to START mode.
Engine compartment
The engine shown here is an example for
illustrative purposes only.
The locations of the following elements may
vary:
–

Air filter
.
–

Engine oil dipstick.
–


Engine oil filler cap.
Petrol engine

142
Practical information
Diesel engine

1.Screenwash fluid reservoir
2. Engine coolant reservoir
3. Brake fluid reservoir
4. Battery/Fuses
5. Remote earth point (-)
6. Fusebox
7. Air filter
8. Engine oil filler cap
9. Engine oil dipstick
10. Priming pump*
The Diesel fuel system operates under
very high pressure.
All work on this circuit must be carried out
only by a PEUGEOT dealer or a qualified
workshop.
Checking levels
Check all of the following levels regularly in
accordance with the manufacturer's service
* Depending on engine.
schedule. Top them up if required, unless
otherwise indicated.
If a level drops significantly, have the
corresponding system checked by a PEUGEOT
dealer or a qualified workshop.
The fluids must comply with the manufacturer's requirements and with
the vehicle's engine.
Take care when working under the bonnet, as certain areas of the engine
may be extremely hot (risk of burns) and the
cooling fan could start at any time (even with
the ignition off).
Used products
Avoid prolonged contact of used oil or fluids with the skin.
Most of these fluids are harmful to health and
very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
Empty used oil into the containers reserved
for this purpose at a PEUGEOT dealer or a
qualified workshop.
Engine oil
The level is checked, with the engine having been switched off for at least 30
minutes and on level ground, either using the oil
level indicator in the instrument panel when the
ignition is switched on (for vehicles equipped
with an electric gauge), or using the dipstick.
It is normal to top up the oil level between two
services (or oil changes). It is recommended
that you check the level, and top up if necessary,
every 3,000 miles (5,000 km).
In order to maintain the reliability of the
engine and emissions control system,
never use additives in the engine oil.
Checking using the dipstick
For the location of the dipstick, please refer
to the illustration of the corresponding engine
compartment.
►

Grasp the dipstick by its coloured grip and
pull it out completely

.
►

Wipe the end of the dipstick using a clean,
lint-free cloth.


► Reinsert the dipstick and push fully down,
then pull it out again to visually check the oil
level: the correct level is between marks A (max)
and B (min).
Do not start the engine if the level is:
– above mark A: contact a PEUGEOT dealer or
a qualified workshop.
– below mark B: top up the engine oil
immediately.
Oil grade
Before topping up or changing the
engine oil, check that the oil is suitable
for your engine and complies with the
recommendations in the service schedule
supplied with the vehicle (or available
from your PEUGEOT dealer or qualified
workshop).
Use of non-recommended oil may invalidate
your warranty in the event of engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding under-bonnet engine
compartment illustration.
► Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
► Wait a few minutes before checking the level
again using the dipstick.
► Top up the level if necessary.
► After checking the level, carefully screw the
oil filler cap back on and replace the dipstick in
its tube.

143
Practical information
7► Reinsert the dipstick and push fully down,
then pull it out again to visually check the oil
level: the correct level is between marks A
(max)
and B (min).
Do not start the engine if the level is:
–

above mark
A: contact a PEUGEOT dealer or
a qualified workshop.
–

below mark B

: top up the engine oil
immediately.
Oil grade
Before topping up or changing the
engine oil, check that the oil is suitable
for your engine and complies with the
recommendations in the service schedule
supplied with the vehicle (or available
from your PEUGEOT dealer or qualified
workshop).
Use of non-recommended oil may invalidate
your warranty in the event of engine failure.
Topping up the engine oil level
For the location of the engine oil filler cap, please
refer to the corresponding under-bonnet engine
compartment illustration.
►

Add oil in small quantities, avoiding any spills
on engine components (risk of fire).
►


W
ait a few minutes before checking the level
again using the dipstick.
►

T
op up the level if necessary.
►

After checking the level, carefully screw the
oil filler cap back on

and replace the dipstick in
its tube.
Within 30 minutes of adding oil, the oil
level indication in the instrument panel
when the ignition is switched on is not valid.
Brake fluid

The brake fluid level must be between mark "A" (MAX located on the remote
reservoir) and mark " B" (MIN located on the
main reservoir). If not, check the brake pads for
wear.
To know how often the brake fluid should be
replaced, refer to the manufacturer's servicing
schedule.
Clean the cap before removing it to refill.
Use only DOT4 brake fluid from a sealed
container.
Engine coolant
It is normal to top up this fluid between
two services.
The check and top-up must only be done with
the engine cold.
A level of coolant that is too low risks causing
major damage to the engine; the coolant level
must be close to the "MAX" mark without ever
going above it.
If the level is close to or below the " MIN” mark, it
is essential to top up.
When the engine is hot, the temperature of the
coolant is regulated by the fan.
As the cooling system is pressurised, wait at
least one hour after switching off the engine
before carrying out any work.
In order to avoid the risk of scalding if you need
to top up in an emergency, wrap a cloth around
the cap and unscrew the cap by two turns to
allow the pressure to drop.
Once the pressure has dropped, remove the cap
and top up to the required level.
Screenwash fluid
Top up to the required level when necessary.
Fluid specification
The fluid must be topped up with a pre-mixed
product.
In winter (temperatures below zero), a fluid
containing an anti-freeze agent which is