fuel filter Seat Alhambra 2018 Owner's Manual

The essentials
Warning lamps C ontr
o
l and warning lamps Red warning lamps
 
Do not continue driving!
The electronic parking brake is
on, the brake fluid level is too
low or the brake system is faul-
ty.
››› page
188  
Do not continue driving!
Fault in the engine cooling sys-
tem.››› page
277  
Do not continue driving!
Engine oil pressure too low.››› page
274  
Do not continue driving!
At least one of the vehicles
doors is open, or is not correct-
ly closed.››› page
121  
Do not continue driving!
The rear lid is open or is incor-
rectly closed.››› page
124  
Do not continue driving!
Fault in the steering.››› page
198 
Engine cannot be started
again!
“AdBlue” too low.›››
page
268 
Driver or passenger has not fas-
tened seat belt.›››
page
65 
Use the foot brake!
Change
››› page
193
Brake
››› page
188 
Faulty generator.›››
page
283 Yellow warning lamps

Front brake pads worn.
›››
page
188 
lights up
: ESC malfunction or
off.
flashes: ESC working. 
ASR manually deactivated.

ABS faulty or does not work.

Electronic parking brake faulty.›››
page
188 
Rear fog light switched on.›››
page
130 
lights up
: Driving light totally or
partially faulty.››› page
92
flashes: Fault in the adaptive
light system.››› page
130 
lights up or flashes
: fault in the
emission control system.
››› page
202 
lights up
: pre-heating of diesel
engine.
flashes: fault in the diesel en-
gine management. 
fault in the petrol engine man-
agement.

Diesel particulate filter blocked

Fault in the steering system.›››
page
198 
Tyre pressure too low.›››
page
287
Fault in the tyre pressure
gauge.››› page
234 
Level of windscreen washer flu-
id too low.›››
page
137 
Fuel tank almost empty.›››
page
264 
flashes: engine oil sensor faul-
ty.
›››
page
274
lights up : insufficient engine
oil. 
Fault in airbag system and seat
belt tensioners.›››
page
73 

Front passenger front airbag is
disabled (  
 ).
››› page
73 34

Operation
WARNING
While the engine is running or starting it
cou l
d help reduce the risk of serious injury.
● Never start or leave the engine running in
poorly v
entilated or closed spaces. Exhaust
gas contains carbon monoxide, a toxic, col-
ourless and odourless gas. Carbon monoxide
can cause people to lose consciousness. It
can also cause death.
● Never leave the vehicle unattended if the
engine is
running. The vehicle could move off
suddenly or something unexpected could
happen resulting in damage and serious in-
jury.
● Never use start boosters. Cold start sprays
coul
d explode or increase the engine speed
unexpectedly. WARNING
The components of the exhaust system reach
ver y

high temperatures. This could cause a
fire and considerable damage.
● Always park your vehicle so that no part of
the exhau
st system can come in contact with
flammable materials (such as wood, leaves,
dried grass, spilled fuel, etc.).
● Do not apply additional underseal or anti-
corro
sion coatings to the exhaust pipes, cata-
lytic converter, heat shields or the diesel par-
ticulate filter. Ignition lock
Fig. 197
Vehicle key positions Read the additional information carefully
› ›
›

 page 25
Vehicle keys
››› Fig. 197
No key in the ignition lock: The steering lock may
be activated.
1Ignition off, all electrical devices disconnected.
Key can be removed from the vehicle.
2Ignition is switched on. Pre-heating of diesel en-
gine. The steering lock can be unlocked.
3Switch on the engine. Release the key when the
engine has started. When it is released, the key
returns to position 2
. Key not authorised for the vehicle
If
a k
ey

which is not authorised for this vehi-
cle is inserted in the ignition lock, it can be
removed as follows: ●
Automatic ge
arbox: the key cannot be re-
moved from the ignition lock. Press and re-
lease the selector lever locking button. Key
can be removed from the vehicle.
● Manual gearbox: remov
e the key from the
ignition. WARNING
Unsuitable or careless use of the vehicle key
cou l

d result in serious injury.
● Always take all the keys with you whenever
you le
ave the vehicle. If not, the engine could
accidentally be started and electrical equip-
ment such as the windows could accidentally
be operated which may result in serious in-
jury.
● Never leave children or disabled people
alone in the car
. Passengers could be trapped
in the car in an emergency and not be able to
get themselves to safety. For example, de-
pending on the time of the year, tempera-
tures inside a locked and closed vehicle can
be extremely high or extremely low resulting
in serious injuries and illness or even death,
particularly for young children.
● Never remove the key from the ignition if
the vehic
le is in motion. The steering may
lock and it will not be possible to turn the
steering wheel. 184

Driving
checked by a specialised workshop as soon
a s
po
ssible.
Protection against overloading the DSG ®
6-
gear automatic gearbox
When the clutch is overloaded, the vehicle
begins to jerk and the selector lever position
indicator begins to flash. To prevent damage
to the clutch, this interrupts the power trans-
mission between the engine and the gear-
box. There is no more traction and it is not
possible to accelerate. If the clutch is opened
automatically due to overloading, press the
brake pedal. Wait a few seconds before start-
ing to move again.
Kick-down
The kick-down system provides maximum ac-
celeration when the gear selector lever is in
the positions D, S or in the Tiptronic position.
When the accelerator pedal is pressed right
down, the automatic gearbox will shift down
to a lower gear, depending on road speed
and engine speed. This takes advantage of
the maximum acceleration of the vehicle
››› .
When the ac c
el

erator is pressed to the floor,
the automatic gearbox shifts to the next gear
only after the engine reaches the specified
maximum engine speed. Launch-Control Programme
The Launch-C

ontrol programme enables max-
imum acceleration while at a standstill.
● Switch off the ASR ›››
page 188.
● Press and hold the brake pedal with your
left
foot.
● Place the selector lever in position S or Tip-
tronic
.
● Press the accelerator with the right foot un-
til the
vehicle reaches an engine speed of ap-
proximately 3200 rpm.
● Lift the left foot off the brake ›››
. The ve-
hic l
e s
tarts with maximum acceleration.
● Turn on the ASR after accelerating! WARNING
Rapid acceleration can cause loss of traction
and skid din

g, especially on slippery ground.
This could cause loss of control of the vehicle
resulting in an accident and considerable
damage.
● Only use kick-down and rapid acceleration
when weather c
onditions, surface conditions
and traffic conditions permit; accelerate and
drive in a manner that does not endanger
other road users.
● Please remember that the driven wheels
can slip and the
vehicle can skid if the ASR is
turned off, especially on slippery ground.
● Turn on the ASR after accelerating! CAUTION
● If y

ou stop on a hill with a gear range en-
gaged, do not try to prevent the vehicle from
rolling back by pressing on the accelerator.
This could cause overheating and damage the
automatic gearbox.
● Never allow the vehicle to move with the
gear sel
ector lever in N, especially with the
engine turned off. The automatic gearbox will
not be lubricated and could be damaged. Recommended gear display
In some vehicles, the recommended gear for
r
educ
in

g fuel consumption is displayed on
the instrument panel:
DisplayMeaning 
Optimum gear.

Recommendation to change up a
gear.

Recommendation to change down a
gear.
Information for “cleaning” the diesel partic-
u
l
at

e filter
The exhaust gas system control recognises
when the diesel particulate filter is blocked,
and helps to clean it by recommending a spe-
cific gear for driving. It may therefore be »
197
Technical data
Advice
Operation
Emergencies
Safety

Operation
necessary to drive with the engine at an ex-
c eption
al
ly high speed ››› page 202. WARNING
The recommended gear display is intended as
a guideline only; it shou

ld never replace the
driver's attention to driving carefully.
● Responsibility for selecting the correct gear
for eac
h situation continues to lie with the
driver, for example when overtaking, climb-
ing a hill or towing a trailer. For the sake of the environment
Selecting the most appropriate gear for the
sit uation w

ill help you to save fuel. Note
The recommended gear display is switched
off when the c lut

ch pedal is pressed.Address
Intr oduction The power steering is not hydraulic but elec-
tr
omec
h

anical. The advantage of this steer-
ing system is that it disposes of hydraulic
tubes, hydraulic oil, the pump, filter and oth-
er components. The electromechanical sys-
tem saves fuel. While a hydraulic system re-
quires oil pressure to be maintained, electro- mechanical steering only requires energy
when the steerin

g wheel is turned.
With the power steering system, the assisted
steering function automatically adjusts ac-
cording to the vehicle speed, the steering tor-
que and the wheel turning angle. The power
steering only works when the engine is run-
ning. WARNING
If the power steering is not working then the
st eerin

g wheel is much more difficult to turn
and the vehicle more difficult to control.
● The power steering only works when the
engine is
running.
● Never allow the vehicle to move when the
engine is
switched off.
● Never remove the key from the ignition if
the vehic
le is in motion. The steering may
lock and it will not be possible to turn the
steering wheel. Control and warning lamps

It lights up red
Power steering faulty.The steering system should be
checked by a specialised work-
shop as soon as possible. 
It lights up yellow
Power steering opera-
tion reduced.The steering system should be
checked by a specialised work-
shop as soon as possible.
If, after restarting the engine
and driving for a short dis-
tance, the yellow warning lamp
no longer comes on, it will
not
be necessary to take the vehi-
cle to a specialised workshop.
The vehicle battery
was disconnected and
has been reconnec-
ted.Drive for a short distance at
15-20 km/h (9-12 mph). 
Flashes red
Fault in the steering
column electronic
lock.
 Do not drive on!
Seek professional advice. 
It flashes yellow
Steering column devi-
ation.Gently turn the steering wheel
to and fro.
Steering wheel not
unlocked or locked.Remove the key from the igni-
tion and then switch the igni-
tion back on. Check the mes-
sages displayed on the instru-
ment panel at the same time.
Do not drive on, if
the steering
column remains locked after
the ignition has been switched
on. Seek specialist assistance. 198

Operation
Therefore, unnecessary short journeys
shou l
d be av
oided. Try to combine trips.
The vehicle uses more fuel in winter than in
summer, even when other conditions are the
same.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high dur-
ing this initial warm-up phase. It is therefore
best to drive off immediately after starting
the engine. Avoid running the engine at high
speed.
Adjusting type pressures.
Having the correct pressure in your tyres
helps to reduce rolling resistance and, as a
result reduces fuel consumption. Increasing
the tyre pressure slightly (+0.2 bar
[2.9 psi/20 kPa]) can help to save fuel.
If you are prepared to accept a slight reduc-
tion in comfort, the tyres may be filled to the
pressures recommended for a fully-loaded
vehicle. This is also valid when driving alone
without luggage.
When you buy new tyres, make sure they are
optimised for minimum rolling resistance.
Avoid carrying unnecessary loads
The lighter the vehicle, the more economical
and ecological the driving style. For example, an additional weight of 100 kg will increase
fuel c
onsumption up to 0.3 l/100 km.
Remove any unnecessary objects or loads
from the vehicle.
Remove optional equipment and unnecessa-
ry accessories
The more aerodynamic the vehicle, the lower
the fuel consumption. Optional equipment
and accessories (such as roof racks or bike
carriers) reduce the aerodynamic benefits of
the vehicle.
Therefore, we recommend you remove all op-
tional and unnecessary equipment and racks,
especially if you intend to drive at high
speeds.
Other factors which increase fuel consump-
tion (examples):
● Fault in engine management.
● Driving on hills.
● Trailer towing. WARNING
Always adapt your speed and the distance to
the v ehic

les ahead in line with visibility,
weather conditions, the condition of the road
and the traffic situation. Engine management and ex-
h
au
s

t gas purification system
Introduction WARNING
The components of the exhaust system reach
ver y

high temperatures. This could cause a
fire.
● Always park your vehicle so that no part of
the exhau
st system can come in contact with
flammable materials (such as dried grass).
● Do not apply additional underseal or anti-
corro
sion coatings to the exhaust pipes, cata-
lytic converter, heat shields or the diesel par-
ticulate filter. Control lamps

It lights up
fault in the petrol
engine manage-
ment.Take the vehicle to a specialised
workshop as soon as possible
and have the engine checked.

It lights up
Diesel engine glow
plug system.The engine glow plug system has
been activated. The engine can
be started straight away when
the lamp switches off.
202

Driving
Flashes
Fault in the diesel
engine manage-
ment.If the lamp flashes while you are
driving, have the engine checked
by a specialised workshop as
soon as possible.

It lights up
Fault in the emis-
sion control system.Reduce speed and drive carefully
to the nearest specialised work-
shop to have the engine
checked.

Flashes
Combustion fault
which could dam-
age the catalytic
converter.Reduce speed and drive carefully
to the nearest specialised work-
shop to have the engine
checked.

It lights up
Diesel particulate
filter blocked›››
page 204 Several warning and control lamps light up
f
or a f
ew sec

onds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds. WARNING
Observe traffic regulations when cleaning the
diesel p

articulate filter while driving. ●
Only c

arry on driving if visibility, weather,
road and traffic conditions so permit.
● Never endanger your safety or that of other
roa
d users. CAUTION
Always pay attention to any lit control lamps
and t o the c orr

esponding descriptions and in-
structions to avoid damage to the vehicle. Note
While the control lamps , ,  or  or
rem ain lit, ther

e may be engine problems,
fuel consumption may increase and the en-
gine may lose power. Catalytic converter
The catalytic converter permits the subse-
quent
tr
e

atment of the exhaust gases thus
reducing contaminating gas emissions. To
ensure a longer working life for the exhaust
system and catalytic converter in a petrol en-
gine:
● Always use unleaded petrol.
● Never run the fuel tank completely dry.
● Do not top up with too much engine oil
›››
page 274.
● Do not tow-start the vehicle; use the starter
cabl
es ›››
 page 52. If you should notice misfiring, uneven run-
ning or los

s of power when the car is moving,
reduce speed immediately. Have the car in-
spected by a specialised workshop. If this
happens, unburnt fuel can enter the exhaust
system and escape into the atmosphere. The
catalytic converter can also be damaged by
overheating. For the sake of the environment
Even when the emission control system is
work in

g perfectly, there may be a smell of
sulphur under certain conditions. This de-
pends on the sulphur content of the fuel be-
ing used. Diesel particulate filter
The diesel particulate filter removes soot par-
tic
u
l

ates from the exhaust gas, retains and
burns them. To assist the combustion proc-
ess, SEAT recommends you avoid frequent
short trips.
● Always use diesel with a low sulphur con-
tent ›

›› page 267.
● Never use petrol or fuel oil.
● Never use biodiesel. However, a blend pre-
pared b
y the diesel manufacturer containing
biodiesel within the limits established by the
EN 590 standard may be used ›››
page 267.
● Never run the fuel tank completely dry. »
203
Technical data
Advice
Operation
Emergencies
Safety

Operation
● Do not t
op up w
ith too much engine oil
››› page 274.
● Do not tow-start the vehicle; use the starter
cabl
es ›››
 page 52.
In order to reduce blocking of the diesel par-
ticulate filter, some vehicles with an automat-
ic gearbox may increase the engine speed
slightly to start cleaning the filter automati-
cally. The  control lamp will not light up in
this case.
Control lamp 
If the  control lamp lights up you should
help the filter clean itself by driving in the ap-
propriate manner.
To do this, drive about 15 minutes in fourth
or fifth gear (automatic gearbox: S gear
range) at a minimum speed of 60 km/h
(37 mph), with the engine running at approxi-
mately 2,000 rpm. In this way, the soot build
up in the filter is burned. When cleaning is
successful, the control lamp turns off.
If the lamp  does not turn off, or the three
lamps turn on (particulate filter , fault in
the emission control system  and glow
plugs ), drive the vehicle to a specialised
workshop and have the fault repaired at the
earliest opportunity. WARNING
● Alw a
ys drive according to the road weather
conditions, the terrain and traffic. Driving rec-
ommendations should never lead to illegal
manoeuvres in surrounding traffic. For the sake of the environment
Even when the emission control system is
work in

g perfectly, there may be a smell of
sulphur under certain conditions. This de-
pends on the sulphur content of the fuel be-
ing used. Driving tips
Driv ing abr

oad In some countries, certain safety regulations
and r
equir
ements

are in force relating to ex-
haust gas emissions, which differ from the
technical characteristics of the vehicle. Be-
fore travelling abroad, SEAT recommends you
consult a technical service about the legal re-
quirements and the following points:
● Does the vehicle need technical modifica-
tions f
or driving abroad, for example, adjust-
ment of the headlamps?
● Does the vehicle have all the tools, diag-
nostic
s equipment and spare parts required
for inspections and repairs? ●
Are there an
y SEAT dealers in the destina-
tion country?
● For petrol vehicles: Is unleaded petrol avail-
able at
the right octane rating?
● For diesel engines: Is diesel fuel available
with a low s
ulphur content?
● Are a suitable engine oil ( ›››
page 274) and
other engine fluids complying with SEAT
specifications available in the destination
country?
● Will the navigation system fitted at the fac-
tory
operate correctly in the destination coun-
try with the available navigation data?
● Are special tyres required in the destination
countr
y? CAUTION
SEAT does not accept liability for any damage
to the v

ehicle due to the use of a lower quali-
ty fuel, an inadequate service or the non-
availability of genuine spare parts. Driving along flooded roadways
To prevent damage to the vehicle when driv-
in
g thr
ough w

ater, for example, along a floo-
ded road, please observe the following:
● Check the depth of the water before enter-
ing the flooded z
one. The water should never
come above the lower edge of the bodywork
››› .
204

Advice
Before applying the product, use a soft cloth
t o r
emo
ve dust and dirt from the rubber
seals.
De-icing the door lock cylinder To de-ice the lock cylinders, SEAT recommend
the use of
g

enuine SEAT spray with lubricat-
ing and anti-corrosive properties. CAUTION
The use of products containing degreasing
agent s

to de-ice the locks may rust the lock
cylinder. Protection of vehicle undercarriage
The vehicle underbody is coated to protect it
fr
om c
hemic

al and mechanical damage. The
protective coat on the undercarriage may
wear from use while driving. Therefore, SEAT
recommends that the protective coating on
the undercarriage and on the running gear
should be regularly checked, and repaired if
necessary. WARNING
Additional underseal or anti-corrosion prod-
ucts c

ould catch fire due to the high tempera-
tures reached by the exhaust gas system and
other engine components. ●
Do not ap p

ly additional underseal or anti-
corrosion products to the exhaust pipes, cat-
alytic converters, heat shields or other parts
of the vehicle which reach high temperatures. Cleaning the engine compartment
The engine compartment of any motor vehi-
cl
e i

s a potentially hazardous area
››› page 271.
The engine compartment should only be
cleaned by qualified personnel. If it is not
correctly cleaned, the anti-corrosion coating
and consequently electrical components may
be damaged. Moreover, water may filter di-
rectly into the vehicle interior through the wa-
ter chamber ››› .
If the en
gine c

ompartment is very dirty, al-
ways take the vehicle to a specialised work-
shop for professional cleaning. SEAT recom-
mends taking your car in for technical serv-
ice.
Water box
The water box is in the engine compartment,
between the windscreen and the engine, and
beneath a perforated cover. Air is taken in
through the water box from outside to the ve-
hicle interior via the heating and air condi-
tioner. Leaves and other loose objects should be
regu

larly cleaned away from the water box ei-
ther by hand or with a vacuum. WARNING
When working on the engine or in the engine
comp ar

tment, there is a risk of injury, burns,
accident or fire.
● Before starting work, please ensure you are
famili
ar with the required procedure and the
safety precautions ››› page 271.
● SEAT recommends getting a specialised
workshop t
o do these jobs. CAUTION
If water is manually poured into the water box
(e.g. u s

ing a high pressure cleaning appli-
ance), this could cause significant damage to
the vehicle. For the sake of the environment
Only wash the engine compartment in areas
al loc

ated for this purpose, to prevent dirty
water which may be contaminated by oil,
grease or fuel, from entering the drains. In
some places, washing this compartment out-
side the planned areas is even banned. 258

Advice
Control lamps and fuel gauge Fig. 235
On the instrument panel: Fuel gauge
f or petr
o
l and diesel 
Lights up.
Position of the gauge in
the red (arrow)
››› Fig. 235
The fuel tank is al-
most empty ››› . The
fuel reserve is being
used ››› page 40.Refuel as soon as possible
››› . 
It lights up
Fuel tank not closed
correctly.Stop the vehicle and close the
tank flap properly.
Several warning and control lamps light up
f
or a f
ew sec

onds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds. When the  or  contro

l lamp lights up, the
auxiliary heater running and the supplemen-
tary heater automatically switch off. WARNING
Driving with insufficient fuel reserve could re-
su lt

in the vehicle breaking down in traffic
and a serious accident.
● If the fuel level is too low then the fuel sup-
ply t
o the engine can become irregular espe-
cially on slopes.
● If the engine “is choked” or stalls due to
lack
of or irregularity of the fuel supply, the
power steering as well as all of the driver as-
sistance systems including braking assis-
tance will stop working.
● Always refuel when there is only one quar-
ter of the f
uel tank left to avoid running out of
fuel. CAUTION
● Alw a

ys pay attention to any lit control
lamps and to the corresponding descriptions
and instructions to avoid damage to the vehi-
cle.
● Never run the fuel tank completely dry. An
irregu
lar fuel supply may lead to ignition
faults and unburnt fuel could enter the ex-
haust system. This could damage the catalyt-
ic converter filter or the diesel particulate fil-
ter! Note
The arrow next to the fuel pump symbol on
the ins trument

panel ››› Fig. 235 indicates the
side of the vehicle on which the fuel tank flap
is located. Refuelling
Fig. 236
Open fuel tank flap with tank cap in
the ho l
der Read the additional information carefully
› ›
›

 page 40
Refuelling
The correct petrol type for the vehicle is loca-
ted on a sticker inside the fuel tank flap
››› page 267.
● If the automatic filler nozzle is operated
correctly
, it will switch itself off as soon as
the tank is full ››› .
266

Advice
CAUTION
● Do not r ef
uel if the filler indicates that the
fuel contains metal. LRP ( lead replacement
petrol) fuels contain high concentrations of
metal additives. Using them may damage the
engine!
● Never refuel with fuels containing a large
proportion of
ethanol (for example, E50, E85).
This could damage the fuel system.
● Just filling one full tank of leaded fuel or
fuel c
ontaining other metal additives would
seriously impair the efficiency of the catalytic
converter.
● Only use fuel additives that have been ap-
prov
ed by SEAT. Octane boosting or anti-
knock additives may contain metal additives
that could seriously damage the engine or
the catalytic converter. These additives must
not be used.
● High engine speed and full throttle can
damag
e the engine when using petrol with an
octane rating lower than the correct grade for
the engine. Note
● You m a

y use petrol with a high octane num-
ber than the one recommended for your en-
gine.
● In those countries where unleaded petrol is
not avai
lable, you may refuel with a fuel with
a low lead content. Diesel fuel
Please note the information on the inside of
the fuel
t

ank flap.
We recommend the use of diesel fuel which
complies to European standard EN 590. If
diesel fuel which meets European standard
EN 590 is not available, the Cetane number
(CZ) must, at minimum, be 51. If the engine
is equipped with a particulate filter, the sul-
phur content of the fuel must be below 50
parts per million.
Winter-grade diesel
Summer fuel becomes thicker in winter and it
is more difficult to start the engine. For this
reason, petrol stations in some countries al-
so offer winter diesel with improved fluidity
when cold (winter-grade diesel). CAUTION
● The v ehic

le is not designed for the use of
FAME fuel (biodiesel). The fuel system would
be damaged if you used biodiesel.
● Do not mix fuel additives, the so-called
“thinners”, petro
l or similar additives with
diesel fuel.
● If poor-quality diesel fuel is used, it may be
neces
sary to drain the fuel filter more fre-
quently than is specified in the Maintenance
Programme. We recommend having this done
by a specialised workshop. If water is allowed to collect in the filter, this can cause engine
perf
orm

ance problems. Selective catalytic reduction*
(AdBlue)
Introduction In vehicles with “Selective Catalytic Reduc-
tion”, a spec
i

al urea solution (AdBlue) is in-
jected into the exhaust gas system in front of
the catalytic converter to reduce nitrogen ox-
ide emissions.
The consumption of AdBlue depends on indi-
vidual driving style, the temperature at which
the system operates and the outside temper-
ature where the vehicle is driven.
AdBlue is kept in an independent tank in the
vehicle and should be refilled at an official
supplier. The AdBlue tank holds approxi-
mately 17 litres.
The AdBlue fill level must be checked when
the vehicle is being serviced. WARNING
If the AdBlue fill level is too low, the vehicle
ma y

not restart after switching the ignition
off. The emergency start or jump start will not
be possible either! 268