2017 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 253.
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 figures for your specific
model, which may be lower than these fig-
ures for the towing bracket, are given in the
vehicle documentation or in ››› chapter Tech-
nical Data .
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 back of
the right 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 251.
Trailer rear lights
The trailer's rear lights should comply with
the statutory safety regulations ››› page 251. 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. 250

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 58.
● 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.
252

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.254

Advice
●
Never c o
ver the engine with additional in-
sulating materials such as a blanket. Risk of
fire!
● Do not unscrew the cap on the coolant ex-
pans
ion tank when the engine is hot. If the
coolant is hot, the cooling system will be
pressurised!
● Protect face, hands and arms by covering
the cap with a l
arge, thick cloth to protect
against escaping coolant and steam.
● Always make sure you have not left any ob-
jects, s
uch as cleaning cloths or tools, in the
engine compartment.
● If you have to work underneath the vehicle,
you mus
t use suitable stands additionally to
support the vehicle, there is a risk of acci-
dent!. A hydraulic jack is insufficient for se-
curing the vehicle and there is a risk of injury.
● If any work has to be performed when the
engine is
started or with the engine running,
there is an additional, potentially fatal, safety
risk from the rotating parts, such as the drive
belts, alternator, radiator fan, etc., and from
the high-voltage ignition system. You should
also observe the following:
– Never touch the electrical wiring of the
ignition system.
– Ensure that jewellery, loose clothing and
long hair do not get trapped in rotating
engine parts. Danger of death. Before
starting any work remove jewellery, tie
back and cover hair, and wear tight-fit-
ting clothes. –
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. 268

Checking and refilling levels
●
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 267. Closing the bonnet
–
Slightly lift the bonnet. –
Rel
e

ase the bonnet stay and replace it in its
support.
– 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 y

ou 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. 269
Technical data
Advice
Operation
Emergencies
Safety

Advice
extra care. Refit the normal road wheel as
soon as
po
ssible. 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 255. 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. 241
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
pressure (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.
Tyr
e pressure adjustment
After modifying 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 33.
You can also press and hold down the
››› Fig. 241 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.
282

Wheels
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.
● Under certain circumstances (e.g. when
driving in a s
porty 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
warnin 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 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 y

ou 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
using 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: ●
Pul
l the carpet upwards to remove it.
● Disconnect the subwoofer's
speaker cable.
● Turn the securing wheel anti-clockwise.
● Remove the subwoofer
speaker and the
spare wheel.
● When replacing 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. 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 drive at over 80 km/h (50 mph)
when the temporar
y 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. 283
Technical data
Advice
Operation
Emergencies
Safety

Index
B
B ac
k
seat
folding down and raising the back seat back- rest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Before setting off . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Belt pretensioners . . . . . . . . . . . . . . . . . . . . . . . . . 81
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Blind spot detector (BSD) . . . . . . . . . . . . . . . . . . 220 control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 220
driving situations . . . . . . . . . . . . . . . . . . . . . . . 223
indication in the external rear view mirror . . . 221
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . 17, 267, 270 closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Boot hatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Boot lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Brake assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 57, 275 changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . 174, 191
Brakes brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
new brake pads . . . . . . . . . . . . . . . . . . . . . . . . 174
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . 174, 182
Brake system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Braking brake assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Braking distance . . . . . . . . . . . . . . . . . . . . . . . . . 174
BSD see Blind spot detector (BSD) . . . . . . . . . . . . . 220
Bulbs changing the bulbs . . . . . . . . . . . . . . . . . . . . . 102 Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
C Capac
ities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Car care exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . 193 malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
CCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Central locking system . . . . . . . . . . . . . . . . . . . . . 126 anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . . . . 132
automatic speed-dependent locking . . . . . . . 128
central locking button . . . . . . . . . . . . . . . . . . . 128
electric windows . . . . . . . . . . . . . . . . . . . . . . . . 136
emergency locking . . . . . . . . . . . . . . . . . . . . . . . 16
key by remote control . . . . . . . . . . . . . . . . . . . . 124
Keyless Access . . . . . . . . . . . . . . . . . . . . . . . . . 129
safe security system . . . . . . . . . . . . . . . . . . . . . 126
selective unlocking system . . . . . . . . . . . . . . . 127
self-locking system to prevent involuntary un-locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
unlocking system . . . . . . . . . . . . . . . . . . . . . . . 128
Central wheel trim . . . . . . . . . . . . . . . . . . . . . . 61, 62
Centre console . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cetane number (diesel fuel) . . . . . . . . . . . . . . . . 266
Changing a bulb additional brake light . . . . . . . . . . . . . . . . . . . . 107
dipped beam . . . . . . . . . . . . . . . . . . . . . . . . . . 104
DRL (daytime running light) . . . . . . . . . . . . . . . 104
fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
general notes . . . . . . . . . . . . . . . . . . . . . . . . . . 102
interior light and reading light . . . . . . . . . . . . 107
luggage compartment light . . . . . . . . . . . . . . . 108
main beam headlight . . . . . . . . . . . . . . . . . . . . 103
number plate light . . . . . . . . . . . . . . . . . . . . . . 106
rear bulb in the side panel . . . . . . . . . . . . . . . . 105 rear light in the rear lid . . . . . . . . . . . . . . . . . . . 106
turn sign
al light . . . . . . . . . . . . . . . . . . . . . . . . 104
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . 61 subsequent work . . . . . . . . . . . . . . . . . . . . . . . . 65
wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Changing settings CAR menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Changing the blades . . . . . . . . . . . . . . . . . . . . . . . 96
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . 67
Checking levels engine compartment . . . . . . . . . . . . . . . . . . . . 270
Child-proof locking electric windows . . . . . . . . . . . . . . . . . . . . . . . . 135
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23, 89 categorisation in groups . . . . . . . . . . . . . . . . . . 90
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
safety instructions . . . . . . . . . . . . . . . . . . . . 23, 88
securing with seat belt . . . . . . . . . . . . . . . . . . . . 24
Top Tether system . . . . . . . . . . . . . . . . . . . . . 26, 29
Chrome parts cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . . . 152
City Emergency braking function . . . . . . . . . . . . . 207
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256 adhesive sheets . . . . . . . . . . . . . . . . . . . . . . . . 258
alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
alloy wheel rims . . . . . . . . . . . . . . . . . . . . . . . . 261
chrome parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Easy Connect control panel . . . . . . . . . . . . . . . 262
engine compartment . . . . . . . . . . . . . . . . . . . . 261
fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
high pressure cleaners . . . . . . . . . . . . . . . . . . . 258
leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
plastic parts . . . . . . . . . . . . . . . . . . . . . . 259, 262
radio display . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
rubber seals . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
294