2018 Seat Arona ECU

Operation
Trailer towing Wh at
do
you need to bear in mind
when towing a trailer? Your vehicle may be used to tow a trailer
when fitted w
ith the c

orrect equipment.
If you wish to retrofit a towing bracket, con-
sult ››› page 257.
Connectors
Your vehicle is fitted with a 13-pin connector
for the electrical connection between the
trailer and the vehicle.
If the trailer has a 7-pin plug you will need to
use an adapter cable. It is available at any
Technical Service.
Trailer weight/drawbar load
Never exceed the authorised trailer weight. If
you do not load the trailer up to the maxi-
mum permitted trailer weight, you can then
climb correspondingly steeper slopes.
The maximum trailer weights listed are only
applicable for altitudes up to 1000 m above
sea level. With increasing altitude the engine
power and therefore the vehicle climbing
ability are impaired because of the reduced
air density. The maximum trailer weight has
to be reduced accordingly. The weight of the
vehicle and trailer combination must be re- duced by 10% for every further 1000 m (or
par
t

thereof). The gross combination weight
is the actual weight of the laden vehicle plus
the actual weight of the laden trailer. When
possible, operate the trailer with the maxi-
mum permitted drawbar load on the ball joint
of the towing bracket, but do not exceed the
specified limit.
The figures for trailer weights and drawbar
loads that are given on the data plate of the
towing bracket are for certification purposes
only. The correct towing bracket figures for
your specific model, which may be lower than
these figures, are given in the vehicle docu-
mentation or on ››› page 291, Technical
specifications.
Distributing the load
Distribute loads in the trailer so that heavy
objects are as near to the axle as possible.
Loads carried in the trailer must be secured
to prevent them moving.
Tyre pressure
The maximum permissible tyre pressure val-
ues are shown on the sticker on the rear part
of the left front door frame. Set the tyre pres-
sure of the trailer tyres in accordance with the
trailer manufacturer's recommendations. Exterior mirrors
Check whether
you can see enough of the
road behind the trailer with the standard rear
vision mirrors. If this is not the case, you
should have additional exterior mirrors fitted.
Both exterior mirrors should be mounted on
hinged extension brackets. Adjust the mirrors
to give sufficient vision to the rear.
Tow rope
Always use a cable between the vehicle and
the trailer ››› page 255.
Trailer rear lights
The trailer's rear lights should comply with
the statutory safety regulations ››› page 255. WARNING
Never transport people in a trailer. This could
re s

ult in fatal accidents. Note
● To w

ing a trailer places additional demands
on the vehicle. We recommend additional
services between the normal inspection inter-
vals if the vehicle is used frequently for tow-
ing a trailer.
● Find out whether special regulations apply
to to
wing a trailer in your country. 254

Operation
WARNING
The towing bracket ball coupling must be
st or
ed securely in the luggage compartment
to prevent them being flung through the vehi-
cle and causing injury. Note
● By l

aw, the ball coupling must be removed
if a trailer is not being towed if it obscures
the number plate. Driving with a trailer
Fig. 234
Turn the 13-pin connector. Before driving
●
Grip the 13-pin connector at area A and
r emo
v

e it in the direction of the arrow
››› Fig. 234.
● Remove the protective cover 5
› ››
Fig. 222
up w

ards.
After driving
● Grip the 13-pin connector at area A and
in ser
t

it in the opposite direction to the arrow
››› Fig. 234.
● Fit the protective cover 5
› ›
› Fig. 222
on
the ball coupling.
Safety lug
The safety lug B
› ›
› Fig. 234
is used to hook
up the trailer's retainer cable.
On hooking it up to the safety lug, the retain-
er cable should have slack in all the trailer
positions with respect to the vehicle (sharp
bends, reverse gear, etc.).
Headlights
The front part of the vehicle may be raised
when the trailer is connected and the light
may dazzle the rest of the traffic.
Adapt the height of the headlights using the
headlight range rotary adjuster 1)
. WARNING
● Never u se the s

afety lug to tow!
● Adjust your speed to suit the road and traf-
fic condition
s.
● All work on the electrical system must be
carried out on
ly by specialised workshops.
● Never connect the trailer's electric system
to the electric
al connections of the rear lights
or any other power sources.
● After hooking up the trailer and connecting
the socket, c
heck that all the trailer's rear
lights are working properly. Note
● If ther e i

s any fault in the trailer's lighting,
check the fuses in the instrument panel fuse
box ›››
 page 62.
● The contact between the retainer cable and
the safety
lug may give rise to mechanical
wear in the lug's surface protection. This
wear will not prevent the safety lug from op-
erating properly or cause any fault and is ex-
cluded from the warranty.
● When connecting and disconnecting the
trail
er, the towing vehicle's handbrake
should be applied. 1)
This does not apply for vehicles with bi-xenon
hea dlights.
256

Operation
If a towing bracket is to be fitted after the ve-
hic l
e i
s purchased, this must be completed
according to the instructions of the towing
bracket manufacturer.
The attachment points for the towing bracket A are on the lower part of the vehicle.
The di s
t

ance between the centre of the ball
coupling and the ground should never be
lower than the indicated value, even with a
fully loaded vehicle and including the maxi-
mum drawbar load.
Elevation values for securing the towing
bracket:
Elevation values for securing the towing bracket:
B65 mm (minimum)
C350 mm to 420 mm (fully laden vehicle)
D1,033 mm
E322 mm
F338 mm Fitting a towing bracket
●
Driving with a trailer involves an extra effort
f or the
v

ehicle. Therefore, before fitting a
towing bracket, please contact a Technical
Service to check whether your cooling system
needs modification.
● The legal requirements in your country
must
be observed (e.g. the fitting of a sepa-
rate control lamp). ●
Cert
ain vehicle components, e.g. the rear
bumper, must be removed and reinstalled.
The towing bracket securing bolts must be
tightened using a torque wrench, and a pow-
er socket must be connected to the vehicle
electrical system. This requires specialised
knowledge and tools.
● Figures in the illustration show the eleva-
tion value and the att
achment points which
must be considered if you are retrofitting a
towing bracket. WARNING
The towing brackets should be fitted at a spe-
ci a

lised workshop.
● If the towing bracket is incorrectly instal-
led, there i
s a serious danger of accident.
● For your own safety, please observe the tow
brack
et manufacturer's instructions. CAUTION
● If the po w

er socket is incorrectly installed,
this could cause damage to the vehicle elec-
trical system. Note
● SEA T r

ecommends that the towing hooks
be fitted at a specialised workshop. Consult
your SEAT dealer in case additional modifica-
tions to your vehicle are necessary.
● Due to the specific design of the exhaust,
the fitting of a c
onventional towing hook is not recommended for some sportier versions.
Ple
a

se consult your Technical Service.258

Advice
–
Never ac c
elerate with a gear engaged
without taking the necessary precau-
tions. The vehicle could move, even if the
handbrake is applied. Danger of death.
● If work has to be carried out on the fuel
syst
em or on electrical components, you
must observe the following safety notes in
addition to the above warnings:
– Always disconnect the battery from the
on-board network. The vehicle must be
unlocked when this is done, otherwise
the alarm will be triggered.
– Do not smoke.
– Never work near naked flames.
– Always have a fire extinguisher on hand. WARNING
If the bonnet is not correctly closed, it could
sud den

ly open while driving leaving the driv-
er without visibility. This could result in a se-
rious accident.
● After closing the bonnet, always check that
it is
properly secured by the locking mecha-
nism in the lock carrier piece. The bonnet
must be flush with the surrounding body pan-
els.
● While driving, if you notice that the bonnet
is not
correctly closed then stop immediately
and close it correctly.
● Only open and close the bonnet when there
is no
body within its range. CAUTION
When topping up service fluids, make sure
not t o mi

stake them. Using the wrong fluids
could cause serious malfunctions and engine
damage! For the sake of the environment
Service fluids leaks are harmful to the envi-
ronment . F

or this reason you should make
regular checks on the ground underneath
your vehicle. If you find spots of oil or other
fluids, have your vehicle inspected in a speci-
alised workshop. Opening the bonnet
Read the additional information carefully
› ›
›

 page 17
The bonnet is released from inside the vehi-
cle.
Before opening the bonnet ensure that the
windscreen wipers are in rest position. WARNING
Hot coolant can scald!
● Never open the bonnet if you see steam,
smoke or c oo

lant escaping from the engine
compartment. ●
Wait u

ntil no more steam, smoke or coolant
is emitted from the bonnet, then carefully
open the bonnet.
● When working in the engine compartment,
alwa
ys observe the safety warnings
››› page 273. Closing the bonnet
–
Slightly lift the bonnet.
– Release the bonnet stay and replace it in its
sup
por

t.
– At a height of approximately 30 cm let it fall
so it lock

s.
If the bonnet does not close, do not press
downwards. Open it again and let it fall as
mentioned above. WARNING
If the bonnet is not closed properly, it could
open whil e

you are driving and completely
obscure your view of the road. Risk of acci-
dent.
● After closing the bonnet, always check that
it is
properly secured. The bonnet must be
flush with the surrounding body panels.
● If you notice that the bonnet latch is not se-
cured when the
vehicle is moving, stop the
vehicle immediately and close the bonnet
properly. Risk of accident. 274

Wheels
Wheel bolts The design of wheel bolts is matched to the
rims. If diff
er
ent wheel rims are fitted, the
correct wheel bolts with the right length and
correctly shaped bolt heads must be used.
This ensures that wheels are fitted securely
and that the brake system functions correctly.
In certain circumstances, you should not use
wheel bolts from a different vehicle, even if it
is the same model ››› page 259. WARNING
If the wheel bolts are not tightened correctly,
the wheel c ou

ld become loose while driving.
Risk of accident.
● The wheel bolts must be clean and turn
eas
ily. Never apply grease or oil to them.
● Use only wheel bolts which belong to the
wheel.
● If the pr

escribed torque of the wheel bolts
is t
oo low, they could loosen whilst the vehi-
cle is in motion. Risk of accident! If the tight-
ening torque is too high, the wheel bolts and
threads can be damaged. CAUTION
The prescribed tightening torque for wheel
bolt s

for steel and alloy wheels is 120 Nm. Tyre monitoring indicator*
Fig. 242
Centre console: tyre monitoring sys-
t em b
utt

on. The tyre monitoring system compares wheel
r
ev
o

lutions alongside the wheel diameter of
each wheel, with help from the ESC. If the di-
ameter of a wheel changes, the tyre monitor-
ing indicator lights up . The wheel diame-
ter changes when:
● Tyre pressure is insufficient.
● The tyre structure is damaged.
● The vehicle is unbalanced because of a
load.
● The wheel

s of one axle are under more
pres
sure (for example, driving with a trailer or
on steep slopes).
● The vehicle is fitted with snow chains.
● The temporary spare wheel is fitted.
● The wheel on one axle is changed. Tyre pressure adjustment
After modif

ying tyre pressure or changing any
wheels, the new tyre pressure must be stored
in the Easy Connect system with the  but-
t on and the S
ET

TINGS function button
› ›
›
 page 34.
You can also press and hold down the
››› Fig. 242 button with the ignition on, until
an acoustic signal is heard.
If the wheels are under excessive load (for ex-
ample, driving with a trailer or heavy load),
the tyre pressure must be increased to the
recommended value for a full load (see the
sticker on the back of the left front door
frame). If the tyre monitor system button is
pressed down, the new tyre pressures are
confirmed.
The tyre pressure control lamp  lights up
If the tyre pressure of a wheel is much lower
than the value set by the driver, then the tyre
pressure control lamp ››› will light up.
WARNING
● When the tyr e pr

essure control lamp lights
up, reduce speed immediately and avoid any
sudden turning or braking manoeuvre. Stop
when possible, and check the tyre pressure
and status.
● The driver is responsible for maintaining
correct
tyre pressures. For this reason, tyre
pressure must be regularly checked. » 287
Technical data
Advice
Operation
Emergencies
Safety

Advice
●
Under cer t
ain circumstances (e.g. when
driving in a sporty manner, in winter condi-
tions or on a dirt track) the tyre control lamp
may light up belatedly or may function incor-
rectly. Note
If the battery is disconnected, the yellow
w arnin g l

amp  lights up after turning the
ignition on. This should turn off after a brief
journey. Spare wheel (temporary spare
wheel)*
Loc
ation and u

se of the temporary
spare wheel Fig. 243
In the luggage compartment: re-
mo v
e the s

ubwoofer. The temporary spare wheel is stored under
the floor p
anel
in the lug

gage compartment
and is attached by a thumbnut.
How to use the temporary spare wheel
If you ever have a punctured tyre or loss of
pressure, the temporary spare wheel is only
intended for temporary use until you reach a
workshop. Change it for a duty wheel as soon
as possible. Please note the following restrictions when
usin

g the temporary spare wheel. This tem-
porary spare wheel has been specially de-
signed for your vehicle, thus, it cannot be
changed with the temporary spare wheel
from another vehicle.
No other type of tyre (normal summer or win-
ter tyre) may be fitted on the compact tempo-
rary spare wheel rim.
Snow chains
For technical reasons, snow chains must not
be used on the temporary spare wheel.
If you have a puncture on one of the front
wheels when using snow chains, fit the tem-
porary spare wheel in place of one of the rear
wheels. Fit the snow chains on the rear wheel
that you have removed and replace the punc-
tured front wheel with this wheel.
Getting the spare wheel out of vehicles with
the Beats Audio ®
sound system (6 speakers
with 1 subwoofer)*
Disassemble the subwoofer's floor panel
(carpet) as follows:
● Pull the carpet upwards to remove it.
● Disconnect the cable for the subwoofer
speak
er ›››
Fig. 243 1 .
● Turn the securing wheel anti-clockwise 2 .
● Remove the s ub
woofer
speaker and the
spare wheel.
288

Wheels
● When r ep
l
acing the spare wheel, place the
subwoofer speaker in the direction indicated
by the arrow and with the word “FRONT” fac-
ing forward.
● Reconnect the speaker cable and firmly ro-
tate the sec
uring wheel clockwise so that the
subwoofer system and wheel are firmly in
place.
Removing the 16” temporary spare wheel
(without subwoofer)
● Remove the luggage compartment variable
floor to acc
ess the wheel and the tools
››› page 161.
● Loosen the strap that secures the box by
pres
sing on the buckle.
● Remove the toolbox.
● Turn the securing wheel anti-clockwise and
remov
e it.
● Press the thread and turn it 90° clockwise
or anti-clock
wise and remove it.
● Pull on the front part of the spare wheel to
remov
e it. WARNING
● Aft er fittin

g the temporary spare wheel,
check the tyre pressures as soon as possible.
Failure to do so may cause an accident. The
tyre pressure is listed on the back of the left
front door frame. ●
Do not driv e at

over 80 km/h (50 mph)
when the temporary spare wheel is fitted on
the vehicle: risk of accident!
● Avoid heavy acceleration, hard braking and
fas
t cornering: risk of accident!
● Never use more than one temporary spare
wheel at the s
ame time, risk of accident.
● No other type of tyre (normal summer or
winter ty
re) may be fitted on the compact
temporary spare wheel rim. Winter service
W int
er ty

res In winter conditions winter tyres will consid-
er
ab
ly

improve the vehicle's handling. The
design of summer tyres (width, rubber com-
pound, tread pattern) gives less grip on ice
and snow.
Winter tyres must be inflated to a pressure of
0.2 bar (2.9 psi/20 kPa) higher than the pres-
sures specified for summer tyres (see the
sticker on the back of the left front door
frame).
Winter tyres must be fitted on all four wheels.
Information on permitted winter tyre sizes
can be found in the vehicle's registration
documentation. Use only radial winter tyres. All tyre sizes listed in the vehicle documenta-
tion also app

ly to winter tyres.
Winter tyres lose their effectiveness when the
tread is worn down to a depth of 4 mm.
The speed rating code ››› page 286, New
tyres and wheels determines the following
speed limits for winter tyres: ››› max. 160 km/h (99 mph)
m
ax. 180 km/h (112 mph)
m ax. 190 km/h (118 mph)
m

ax. 210 km/h (130 mph)
In some countries, vehicles which can exceed
the speed rating of the fitted tyre must have
an appropriate sticker in the driver's field of
view. These stickers are available from your
technical service. The legal requirements of
each country must be followed.
Do not have winter tyres fitted for unnecessa-
rily long periods. Vehicles with summer tyres
handle better when the roads are free of
snow and ice.
If you have a flat tyre, please refer to the
notes on the spare wheel ››› page 286, New
tyres and wheels . WARNING
The maximum speed for the winter tyres must
not be e x

ceeded. Otherwise, this could lead
to damage and risk of accident. » Q
S
T
H
289
Technical data
Advice
Operation
Emergencies
Safety

Index
Index
A
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
185
c ontr
ol lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Adaptive cruise control . . . . . . . . . . . . . . . 205, 214 function for preventing overtaking in an insidelane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
indications on the display . . . . . . . . . . . . . . . . 216
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
special driving situations . . . . . . . . . . . . . . . . . 221
warning and control lamp . . . . . . . . . . . . . . . . 216
Adaptive Cruise Control deactivating temporarily . . . . . . . . . . . . . . . . . 221
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
AdBlue information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
maximum filling capacity . . . . . . . . . . . . . . . . . 271
refilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
specification . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
tank capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Additional consumers (efficiency program) . . . . . 42
Adjusting front head restraints . . . . . . . . . . . . . . . . . . . . . . 79
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
rear head restraints . . . . . . . . . . . . . . . . . 79, 153
seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Adjusting the front seats adjusting the lumbar support . . . . . . . . . . . . . 152
Adjusting the head restraints front head restraints . . . . . . . . . . . . . . . . . . . . . 152
rear head restraints . . . . . . . . . . . . . . . . . . . . . . 79 Adjusting the seat . . . . . . . . . . . . . . . . . . . . . . . . 152
Adjustment
CAR menu
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
front head restraints . . . . . . . . . . . . . . . . . . . . . 152
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . 20, 86 activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
deactivation of front airbag . . . . . . . . . . . . . . . . 90
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
front airbags . . . . . . . . . . . . . . . . . . . . . . . . . 21, 88
functioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
head-protection airbags . . . . . . . . . . . . . . . 23, 89
side airbags . . . . . . . . . . . . . . . . . . . . . . . . . 22, 88
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
general notes . . . . . . . . . . . . . . . . . . . . . . . . . . 164
manual air conditioning . . . . . . . . . . . . . . . . . . . 53
Air outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Air recirculation air conditioning . . . . . . . . . . . . . . . . . . . . . . . . 166
Alarm system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Alcantara: cleaning . . . . . . . . . . . . . . . . . . . . . . . 268
Alloy wheel rims . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Alternator warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . . . 148
Anchoring the front tow line. . . . . . . . . . . . . . . . . . . . . . . . 102
Anti-freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Anti-lock brake system . . . . . . . . . . . . 181, 183, 185 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Anti-puncture . . . . . . . . . . . . . . . . . . . . . . . . . . 64, 98 Anti-puncture kit . . . . . . . . . . . . . . . . . . . . . . . . 64, 98
check after 10 minutes . . . . . . . . . . . . . . . . . . . . 99
Anti-puncture set . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . . . . . 138 trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
vehicle interior monitoring and anti-tow pro-tection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Anti-theft alarm system . . . . . . . . . . . . . . . . . . . . 138 switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Anti-theft security system . . . . . . . . . . . . . . . . . . . 15
Anti-tow protection . . . . . . . . . . . . . . . . . . . . . . . 140
Aquaplaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Aspects to note before setting off . . . . . . . . . . . . . 75
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Assistance systems ACC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
adaptive cruise control . . . . . . . . . . . . . . . . . . . 214
blind spot detector (BSD) with parking assis-tance (RCTA) . . . . . . . . . . . . . . . . . . . . . . . . . 224
Cruise control system . . . . . . . . . . . . . . . . . . . . 205
emergency brake assist (Front Assist) . . . . . . . 210
fatigue detection . . . . . . . . . . . . . . . . . . . . . . . 231
Park Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
parking aid . . . . . . . . . . . . . . . . . . . . . . . 240, 241
parking assistance (RCTA) . . . . . . . . . . . . . . . . 224
speed limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Assisted starting . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Audible warning signal unfastened safety belt . . . . . . . . . . . . . . . . . . . . 81
warning and control lamps . . . . . . . . . . . . . . . 121
Automatic car wash tunnel . . . . . . . . . . . . . . . . . 261
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . . 188 downhill speed control . . . . . . . . . . . . . . . . . . 193
driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
emergency program . . . . . . . . . . . . . . . . . . . . . 194
kick-down feature . . . . . . . . . . . . . . . . . . . . . . . 192 301