2017 Peugeot 308 engine

228
Checking levels
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).
Engine oil level
the check is carried out either when
the ignition is switched on using the
oil level indicator in the instrument
panel for vehicles so equipped, or
using the dipstick.Checking using the dipstick
the location of the dipstick is shown in the
corresponding underbonnet layout view.
F t
a
ke the dipstick by its coloured grip and
remove it completely.
F

W
ipe the end of the dipstick using a clean
non-fluffy cloth.
F

R
efit the dipstick and push fully down, then
pull it out again to make the visual check:
the correct level is between the marks A
and B .
Check all of these levels regularly, in line with the manufacturer's service schedule.
t
o
p them up if necessary, unless other wise indicated.
If a level drops significantly, have the corresponding system checked by a P
e
uge
Ot
dealer or a qualified workshop.
A = MA X
to e

nsure that the reading is correct, your
vehicle must be parked on a level sur face
with

the engine having been off for more than
30 minutes.
It is normal to top-up the oil level between
two services (or oil changes). P
e

uge
Ot


recommends that you check the level, and
top-up if necessary, every 3 000 miles
(5 000 kms). B = MIN
If you find that the level is above the A mark or
below the B mark, do not star t the engine .
-

I
f the level is above the MAX mark (risk
of damage to the engine), contact a
P
e

uge
Ot
dealer or a qualified workshop.
-

I
f the level is below the MIN mark, you
must top-up the engine oil.
Practical information

229
Oil grade
Before topping-up the oil or changing the oil,
check that the oil is the correct grade for your
engine and conforms to the manufacturer's
recommendations.
Topping-up the engine oil level
the location of the oil filler cap is shown in the
corresponding underbonnet layout view.
F u
n
screw the oil filler cap to reveal the filler
aperture.
F

A
dd oil in small quantities, avoiding any
spills on engine components (risk of fire).
F

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

A
dd more oil if necessary.
F

A
fter checking the level, carefully refit the
oil filler cap and the dipstick in its tube. After topping-up the oil, the check when
switching on the ignition with the oil
level indicator in the instrument panel
is not valid during the 30 minutes after
topping-up.
Engine oil change
Refer to the manufacturer's service schedule
for details of the interval for this operation.
In order to maintain the reliability of the engine
and emission control system, never use
additives in the engine oil.th
e brake fluid level must be
between the marking " A" (MA X
located on the remote reservoir) and
the marking " B" (MIN located on the
main reservoir). If it is not, check the
brake pad wear.
Brake fluid level
Changing the fluid
Refer to the personalised service schedule for your
vehicle for details of the interval for this operation.
Fluid specification
the brake fluid must conform to the
manufacturer's recommendations.
7
Practical information

230
Coolant level
the coolant level should be close
to the "MA X" mark but should never
exceed it.
In addition, as the cooling system is pressurised,
wait at least one hour after switching off the
engine before carrying out any work.
to a

void any risk of scalding, unscrew the cap
by two turns to allow the pressure to drop. When
the pressure has dropped, remove the cap and
top-up the level.
It is normal to top-up the coolant
level between services (or coolant
replacements).
Fluid specification
the coolant must conform to the
manufacturer's recommendations. The cooling fan may star t after switching
off the engine: take care with ar ticles and
clothing that might be caught by the fan
blades. When the engine is warm, the temperature of
the coolant is regulated by the fan.
Fluid specification
For optimum cleaning and to avoid freezing,
this fluid must not be topped-up with or
replaced with plain water.
Screenwash and headlamp
wash fluid
In the case of vehicles fitted with
headlamp washers, the low fluid level
is indicated by an audible signal and
a message in the instrument panel
screen.
to

p-up the reservoir when you next
stop the vehicle.
In wintry conditions, the use of an ethyl alcohol
or methanol base fluid is recommended. Avoid prolonged contact of used oil or
fluids with the skin.
Most of these fluids are harmful to
health or indeed very corrosive.
Do not discard used oil or fluids into
sewers or onto the ground.
ta

ke used oil to a P
e
uge
Ot
dealer or
a qualified workshop (France) or to an
authorised waste disposal site.
Used products
To p p i n g - u p
this additive must be topped-up by a
Pe ugeOt dealer or a qualified workshop
without delay.
Diesel additive level
(Diesel engine with
particle filter)
A low additive level is indicated by
illumination of this warning lamp,
accompanied by an audible warning
and a message in the instrument
panel screen.
Practical information

231
Checks
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.Refer to the manufacturer's
service schedule for details of the
replacement intervals for these
components.
Air filter and passenger compartment filter
Replace the oil filter each time the
engine oil is changed.
Refer to the manufacturer's
service schedule for details of
the replacement interval for this
component.Oil filter
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 P
e
uge
Ot
dealer or a
qualified workshop.
Particle filter (Diesel)
the start of saturation of the particle
filter is indicated by the temporary
illumination of this warning lamp
accompanied by a message in the
multifunction screen.
As soon as the traffic conditions permit,
regenerate the filter by driving at a
speed of at least 40 mph (60 km/h) until
the warning lamp goes off.
If the warning lamp stays on, this
indicates a low additive level.
For more information on Checking
levels , refer to the corresponding
section.
On a new vehicle, the first particle
filter regeneration operations may be
accompanied by a "burning" smell,
which is per fectly normal.
Following prolonged operation of the
vehicle at very low speed or at idle,
you may, in exceptional circumstances,
notice the emission of water vapour at
the exhaust on acceleration.
t
h
is does
not affect the behaviour of the vehicle
or the environment.
un

less otherwise indicated, check these components in accordance with the manufacturer's
service schedule and according to your engine.
Other wise, have them checked by a Pe
ugeOt
dealer or a qualified workshop.
For more information and the precautions to
take before starting work on the 12 V batter y ,
refer to the corresponding section. Depending on the environment (e.g. dusty
atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often
if necessary
.
A clogged passenger compartment filter may
have an adverse effect on the per formance
of the air conditioning system and generate
undesirable odours.
7
Practical information

233
AdBlue® and SCR system
for BlueHDi Diesel engines
to assure respect for the environment and
conformity with the new
eu ro 6 emissions
standard, without adversely affecting the
per formance or fuel consumption of Diesel
engines, P
e

uge
Ot
has taken the decision to
equip its vehicles with an effective system that
associates SCR (Selective Catalytic Reduction)
with a particle filter (FAP) for the treatment of
exhaust gases.
SCR system
using a fluid called AdBlue® containing urea, a
catalytic converter turns up to 85% of nitrogen
oxides (NOx) into nitrogen and water, which are
harmless to health and the environment.
th
e AdBlue
® is held in a special tank with
a capacity of about 17 litres: this provides
a driving range of about 12 500 miles
(20

000

km). An alert is triggered automatically
to warn you when the reserve level is
reached: you can then drive about 1 500 miles
(2

400

km) before the tank is empty.
During each scheduled service of your vehicle
by a P
e

uge
Ot
dealer or a qualified workshop,
the AdBlue
® tank is refilled in order to allow
normal operation of the SCR system.
If the estimated mileage of your vehicle
between two services is greater than
12

500

miles (20 000 km), it will be necessary
to top-up the AdBlue
®. Once the AdBlue
® tank is empty, a
s
ystem required by regulations prevents
starting of the engine.
If the SCR

system is faulty, the level
of emissions from your vehicle will no
longer meet the
e
u
ro 6 standard: your
vehicle becomes polluting.
In the event of a confirmed fault
with the SCR system, you must go
to a P
e

uge
Ot

dealer or a qualified
workshop as soon as possible: after
a running distance of 650 miles
(1

100 km), a system will be triggered
automatically to prevent engine starting.
In either case, a range indicator gives
you the distance you can travel before
the vehicle is immobilised.
7
Practical information

234
Topping-up the AdBlue®
Filling the AdBlue® tank is an operation
included in every routine service on your
vehicle by a P
e

uge
Ot
dealer or a qualified
workshop.
Nevertheless, given the capacity of the tank, it
may be necessary to top-up the fluid between
services, more particularly if an alert (warning
lamps and a message) signals the requirement.
You can go to a P
e

uge
Ot
dealer or a qualified
workshop.
If you envisage topping-up yourself, please
read the following warnings carefully.Precautions in use
Keep AdBlue® out of the reach of
children, in its original container or
bottle.
Never transfer AdBlue
® to another
container: it would lose its purity.
us
e only AdBlue
® fluid that meets
the ISO 22241 standard.
Never dilute AdBlue
® with water.
Never pour AdBlue® into the Diesel fuel
tank.
th

e supply in a non-drip container or bottle
simplifies topping-up. You can obtain 1.89 litre
(half a
u
S g

allon) bottles or 5 litre containers
from a P
e

uge
Ot

dealer or a qualified
workshop.
Never top-up from an AdBlue
®
dispenser reserved for heavy goods
vehicles.
AdBlue
® is a urea-based solution. th
is liquid is
non-flammable, colourless and odourless (kept
in a cool area).
In the event of contact with the skin, wash
the affected area with soap and water. In the
event of contact with the eyes, wash (irrigate)
the eyes with large amounts of water or with
an eye wash solution for at least 15 minutes.
If a burning sensation or irritation persists, get
medical attention.
If swallowed, immediately wash out the mouth
with clean water and then drink plenty of water.
In certain conditions (high ambient
temperature, for example), the risk of release of
ammonia cannot be excluded: do not inhale the
fluid. Ammonia vapour has an irritant effect on
mucous membranes (eyes, nose and throat).
Important
If your vehicle's AdBlue
® tank is
c
ompletely empty (which is confirmed
by the alert messages and the
impossibility of starting the engine)
you must add at least 3.8 litres
(so two 1.89 litre bottles).
Practical information

235
Recommendations on storage
Never store bottles of AdBlue® in your
vehicle.
AdBlue
® freezes at about -11°C and
deteriorates above 25°C. It is recommended
that bottles be stored in a cool area and
protected from direct sunlight.
un

der these conditions, the fluid can be kept
for at least a year.
If the additive has frozen, it can be used once
it has completely thawed out.
Procedure
Before starting the top-up procedure, ensure
that the vehicle is parked on a flat and level
sur face.
F

S
witch off the ignition and remove the
key, or if your vehicle has one, press
the S
tA

R
t/
S
tO
P button to switch off
the


engine. F

F
or access to the AdBlue
® tank, raise the
boot carpet then, depending on equipment,
lift out the spare wheel and/or the
storage


box.
F

W

ithout pressing, turn the black cap a
quarter turn anti-clockwise and lift it off.
F
t
u

rn the blue cap a 6
th of a turn anti-
clockwise.
F

L

ift off the cap.
Freezing of the AdBlue®
AdBlue® freezes at temperatures below
around -11°C.
th

e SCR system includes a heater
for the AdBlue
® tank, allowing you to
continue driving in very cold conditions.
Do not dispose of AdBlue
® bottles or
containers in the household waste.
Place them in a container provided
for this purpose or take them to your
dealer.
7
Practical information

236
Never dispose of AdBlue® bottles in
the household waste. Place them in
a special container provided for this
purpose or take them to your dealer.
F

A

fter emptying the bottle, wipe away any
spillage around the tank filler using a damp
cloth. If any AdBlue
® fluid is spilt or splashed,
wash immediately with cold water or
wipe with a damp cloth.
If the AdBlue
® has crystallised, clean it
off using a sponge and hot water.
F

R

efit the blue cap to the tank and turn it a
6
th of a turn clockwise, to its stop.
F
R
efit the black cap and turn it a quarter of
a turn clockwise without pressing.
e
n
sure
that the indicator on the cap lines up with
the indicator on the support.
F

D

epending on equipment, return the spare
wheel and/or the storage box to the bottom
of the boot.
F

R

efit the boot carpet and close the tailgate. Important: when topping-up after
running out of AdBlue
®, signalled
by the message "to
p-up AdBlue:
Starting prevented", you must wait for
about 5 minutes before switching the
ignition on again, without opening the
driver's door, unlocking the vehicle,
introducing the remote control key
into the ignition switch, or placing
the electronic key of the "Keyless
Entr y and Star ting" system inside
the vehicle.
Switch on the ignition, then wait for
10


seconds before starting the engine.
F

O

btain a bottle of AdBlue
®. After first
checking the use-by date, read carefully
the instructions on use on the label before
pouring the contents of the bottle into your
vehicle's AdBlue
® tank.
Practical information