Seat Arona 2018 Repair Manual

The essentials
Engine oil specificationsService intervalEngine typeSpecification
Petrol engines with Set Service Intervals (dependent on
time/distance travelled)1.0l / 1.0l CNG / 1.5lVW 504 00
1.0l / 1.6lVW 502 00 a)
Petrol engines with Flexible Service Intervals (LongLife)1.0l / 1.5lVW 508 00
VW 504 00b)
Diesel engines with Set Service and Flexible Service In-
tervalsc)With particulate filter (DPF)VW 507 00
a)
If the quality of the fuel available in the country does not fulfil the EN 228 (for petrol) and EN 590 (for diesel) standards.
b) Use of engine oil compliant with the VW 504 00 specification instead of VW 508 00 may have a slight negative effect on the vehicle’s exhaust gas values.
c) Only use recommended oils, otherwise you may damage the engine.
››› in Changing engine oil on page 278
››› page 275 Coolant
Fig. 67
Engine compartment: coolant expan-
s ion t
ank

cap. The coolant tank is located in the engine
c
omp
ar

tment ›››
 page 275. When the engine is cold, replace the coolant
when the level

is below .
Coolant specifications
The engine cooling system is supplied from
the factory with a specially treated mixture of
water and at least 40 % of the additive G13
(TL-VW 774 J), purple. This mixture gives the
necessary frost protection down to -25°C
(-13°F) and protects the light alloy parts of
the engine cooling system against corrosion.
It also prevents scaling and considerably rai-
ses the boiling point of the coolant.
To protect the cooling system, the percentage
of additive must always be at least 40 %,
even in warm climates where anti-freeze pro-
tection is not required. » 59

The essentials
If for weather reasons further protection is
nec e
s
sary, the proportion of additive may be
increased, but only up to 60 %; otherwise an-
tifreeze protection will diminish and this will
worsen cooling.
When the coolant is topped up, use a mixture
of distilled water and at least 40 % of the
G13 or G12 plus-plus (TL-VW 774 G) additive
(both are purple) to obtain an optimum anti-
corrosion protection ››› in Topping up cool-
ant on p ag
e 280

. The mixture of G13 with
G12 plus (TL-VW 774 F), G12 (red) or G11
(green-blue) engine coolants will significant-
ly reduce anti-corrosion protection and
should therefore be avoided ››› in Topping
up c oo
l

ant on page 280.

››› in Topping up coolant on page 279
››› page 278 Brake fluid
Fig. 68
Engine compartment: brake fluid res-
er v
oir c

ap. The brake fluid reservoir is located in the en-
gine c
omp
ar

tment ›››
 page 275
.
The level should be between the  and 
marks. If it is below , please visit a Techni-
cal Service.

››› in Changing the brake fluid on
page 280
››› page 280 Windscreen washer
Fig. 69
In the engine compartment: wind-
s c
r

een washer reservoir top. The windscreen washer reservoir is located in
the en
gine c
omp

artment ›››
 page 275.
To top up, mix water with a product recom-
mended by SEAT.
In cold temperatures, add anti-freeze for win-
dows.

››› in Checking and topping up the
windscreen washer reservoir water on
page 281
››› page 281 Battery
The battery is located in the engine compart-
ment

›
›

›  page 275. It does not require60

The essentials
maintenance. It is checked as part of the In-
s pection
Ser
vice.

››› in Symbols and warnings on han-
dling the battery on page 281
››› page 281 61

The essentials
Emergencies F u
se
s
Fuse location Fig. 70
On the driver-side dash panel: fuse
bo x
c

over. Fig. 71
In the engine compartment: fuse box
c o
v

er. Opening and closing the fuse box situated
belo
w the d a

sh panel
● Opening: remove the fuse box cover in the
direction indicat
ed ››› Fig. 70.
● Closing: click the cover back into place.
To open the engine c
ompartment fuse box
● Raise the bonnet.
● Press the locking tabs to release the fuse
box c
over ››› Fig. 71
● Then lift the cover out.
● To fit the cover, place it on the fuse box.
Pu
sh the locking tabs down until they click
audibly into place.
Identifying fuses situated below the dash
panel by colours
ColourAmp rating
Black1
Purple3
Light brown5
Brown7.5
Red10
Blue15
Yellow20
White or transparent25
ColourAmp rating
Green30
Orange40 
››› in Introduction on page 104
›››
page 104 Replacing a blown fuse
Fig. 72
Image of a blown fuse. Preparation
●
Switch off the ignition, lights and all elec-
tric al
equipment

.
● Open the corresponding fuse box
›››
 page 104.62

The essentials
Identifying a blown fuse
A f u
se i
s blown if its metal strip is ruptured
››› Fig. 72.
● Point a lamp at the fuse to see if it has
blown.
T

o replace a fuse
● Remove the fuse.
● Replace the blown fuse by one with an
identica
l amperage rating (same colour and
markings) and identical size.
● Replace the cover again or close the fuse
box lid.
B

ulbs
Bul
bs (12 V) Note: D
epending on the level of equipment
fitt ed in the

vehicle, LEDs may be used for
part or all of the interior and/or exterior light-
ing. LEDs have an estimated life that exceeds
that of the vehicle. If an LED light fails, go to
an authorised workshop for its replacement.
Light source used for each function
Halogen headlights.Type
Dipped beam headlightsH7 Long Life
Main beam headlightsH7
Halogen headlights.Type
Side light/DRL (daytime running
light)W21W
Turn signalPY 21W
Halogen headlight with LED
DRLType
Dipped beam headlightsH7 Long Life
Main beam headlightsH7
Turn signalPY 21W
Side light/DRL (daytime running
light)LED a)
a)
In case of a LED failure, go to an authorised workshop to have
it replaced.
Full-LED main headlightsType
No bulbs may be replaced. All functions are with LEDs.
In case of a LED failure, go to an authorised workshop to
have it replaced.
Bulb light a)LeftRight
Brake lights2 x P21WLL2 x P21WLLSide lights
Retro fog lightP21 WLL–
Reverse light–P21 WLL
Turn signalPY 21W NA LLPY 21W NA LL
a)
The table corresponds to a right-hand traffic vehicle. The po-
sition of lights may vary according to the country.
Light with
LEDs a)LeftRight
Brake lightsLEDLED
Side lightsLEDLED
Retro fog lightLED–
Reverse light–P21 WLL
Turn signalPY 21W NA LLPY 21W NA LL
a)
The table corresponds to a right-hand traffic vehicle. The po-
sition of lights may vary according to the country.
››› page 106 63

The essentials
Action in the event of a punc-
t ur
e
R
elated video Fig. 73
Wheels What to do first
●
Park the vehicle on a horizontal surface
and in a s af
e p

lace as far away from traffic as
possible.
● Apply the handbrake.
● Switch on the hazard warning lights.
● Manual gearbox: select the 1s
t gear.
● Automatic gearbox: Move the sel
ector lever
to position P.
● If you are towing a trailer, unhitch it from
your v
ehicle.
● Have the vehicle tool kit* ›››

page 65 and
the spare wheel ›››
 page 288 ready.
● Observe the applicable legislation for each
countr
y (reflective vest, warning triangles,
etc.). ●
All
occupants should leave the vehicle and
wait in a safe place (for instance behind the
roadside crash barrier). WARNING
● Alw a

ys observe the above steps and pro-
tect yourself and other road users.
● If you change the wheel on a slope, block
the wheel on the oppo
site side of the car with
a stone or similar to prevent the vehicle from
moving. Repairing a tyre with the anti-punc-
t
ur
e k

it Fig. 74
Standard representation: contents of
the anti-p u
nct

ure kit. The anti-puncture kit is located under the
floor p
anel
in the lug

gage compartment. Sealing the tyre
● Unscrew the tyre valve cap and insert. Use
the ›››

Fig. 74 1 tool to remove the insert.
Pl ac
e it
on a clean surface.
● Shake the tyre sealant bottle vigorously
›››
Fig. 74 10 .
● Screw the inflator tube ››
›
Fig. 74 3 into
the se al
ant
bottle. The bottle's seal will break
automatically.
● Remove the lid from the filling tube
›››
Fig. 74 3 and screw the open end of the
t ube int
o the ty
re valve.
● With the tyre sealant bottle upside down,
fill
the tyre with the contents of the sealant
bottle.
● Remove the bottle from the valve.
● Place the insert back into the tyre valve us-
ing the too
l ››› Fig. 74 1 .
Infl atin
g the ty
re
● Screw the compressor tyre inflator tube
›››
Fig. 74 8 into the tyre valve.
● Check that the air bleed screw is closed
› ›
›

Fig. 74 6 .
● Start the engine and leave it running.
● Insert the connector ››
›
Fig. 74 9 into the
v ehic
l
e's 12-volt socket ›››
 page 157.
● Turn the air compressor on with the ON/OFF
swit c

h ››› Fig. 74 5 .
64

The essentials
● Keep the air c
ompr
essor running until it
reaches 2.0 to 2.5 bar
(29-36 psi/200-250 kPa). A maximum of 8
minutes.
● Disconnect the air compressor.
● If it does not reach the pressure indicated,
uns
crew the tyre inflator tube from the valve.
● Move the vehicle 10m so that the sealant is
distrib
uted throughout the tyre.
● Screw the compressor tyre inflator into the
valve.
● R

epeat the inflation process.
● If the indicated pressure still cannot be
reac
hed, the tyre is too badly damaged. Stop
and request assistance from an authorised
technician.
● Disconnect the air compressor. Unscrew
the tyre infl
ator tube from the tyre valve.
● When the tyre pressure is between 2.5 and
2.0 bars, c
ontinue driving without exceeding
80 km/h (50 mph).
● Check the pressure again after 10 minutes
›››
 page 99.

››› in TMS (Tyre Mobility System)* on
page 98
››› page 98 Changing a wheel
R el
at

ed video Fig. 75
Wheels Vehicle tool kit
Fig. 76
Underneath the floor panel of the lug-
g ag
e c

ompartment: vehicle tool kit. An adapter for the anti-theft wheel bolts*
T
o
wline anc

horage
Box spanner for wheel bolts*
Crank handle for jack
1 2
3
4 Jack*
Hook
f
or e

xtracting the central wheel
trims*
Clip for removing the wheel bolt caps.

››› in Vehicle tools on page 97
››› page 97 Central trim for steel rims*
Fig. 77
Correct positioning of the central
wheel trim f
or s

teel rims. The central trims must be removed for access
t
o the wheel
bo

lts. »
5 6
7
65

The essentials
Removing
● Attach the wire hook (vehicle tools
› ›
›
Fig. 76 6 ) to one of the chambers of the
c entr
al
wheel trim.
● Insert the box spanner through the hook,
suppor
ting it on the tyre and remove the
wheel trim.
Fitting
● Fit the central wheel trim onto the rim. The
bottom of the
“S” of the SEAT badge should
align with the inflation valve ››› Fig. 77 1 .
● Press the central trim firmly until it locks in
w ith an audib
l

e click. Note
There is also a valve mark on the back of the
centr a

l wheel trim that indicates the correct
alignment. Central trim for alloy rims*
Fig. 78
Removing the central wheel trim. Fig. 79
Fitting the central wheel trim. Removing
● Attach the wire hook (vehicle tools
› ››

Fig. 76 6 ) to the housing provided for this
› ›
›
Fig. 78. ●
Pul
l on it to remove the trim ››› Fig. 78.
Fitting
● Fit the central wheel trim onto the rim, fit-
ting the protru
sion on the trim into the recess
in the rim ››› Fig. 79 (arrows).
● Press the central trim firmly until it locks in
with an audibl
e click.
Wheel bolt caps* Fig. 80
Wheel: wheel bolts with caps. Removal
● Fit the plastic clip (vehicle tools) over the
c ap u
nti

l it clicks into place ››› Fig. 80.
● Remove the cap with the plastic clip. 66

The essentials
Wheel bolts Fig. 81
Changing a wheel: loosen the wheel
bo lts. Fig. 82
Changing a wheel: tyre valve 1 and
the c orrect
position for the anti-theft wheel
locking bolt 2 or
3 .
Use only the wheel wrench belonging to the
c
ar t
o loo

sen the wheel bolts.
Loosen the wheel bolts only about one turn
before raising the vehicle with the jack. If the wheel bolt is very tight, carefully push
on the end of the wheel wr

ench with your
foot. Hold on to the vehicle for support and
take care not to slip during this operation.
Loosening wheel bolts
● Fit the wheel wrench on as far as it will go
›››
Fig. 81.
● Hold the wrench at the end and rotate the
bolt ap
proximately one turn anticlock-
wise ››› in Removing and fitting the wheel
on p ag
e 69

.
The caps protect the wheel bolts and should
be pushed fully on again after changing the
tyre.
Loosening the anti-theft wheel bolt
● Take the adapter for the anti-theft wheel
bolts out
of the vehicle tool kit.
● Insert the adapter fully onto the anti-theft
wheel bolt
››› Fig. 82.
● Fit the wheel wrench as far as it will go over
the adapt
er.
● Hold the wrench at the end and rotate the
bolt ap
proximately one turn anticlock-
wise ››› in Removing and fitting the wheel
on p ag
e 69

.
The anti-theft wheel bolt has a different cap.
This cap only fits on anti-theft locking bolts
and is not for use with standard wheel bolts. Important information about wheel bolts
Factor

y-fitted rims and wheel bolts are spe-
cially matched during construction. There-
fore, if different rims are fitted, the correct
wheel bolts with the right length and heads
must be used. This ensures that wheels are
fitted securely and that the brake system
functions correctly.
In certain circumstances, you should not
even use wheel bolts from vehicles of the
same model.
In wheels with full hubcaps, the anti-theft
locking bolt must be threaded onto positions 2
› ›
› Fig. 82
or 3 , taking the tyre valve’s po-
s ition a
s
reference 1 . Otherwise it will not
be po s
s
ible to mount the hubcap. 67

The essentials
Raising the vehicle Fig. 83
Jack position points. Fig. 84
Fitting the jack. ●
Place the jack* (vehicle tools) on firm
gr ou
nd. If
necessary use a large, strong
board or similar support. If the surface is slip-
pery (for example tiles) place the jack on a
rubber mat or similar to prevent it from slip-
ping ››› . ●
Find the s up
por

t point on the strut (sunken
area) closest to the wheel to be changed
››› Fig. 83.
● Turn the jack* crank handle, located below
the strut s
upport point, to raise it until the
tab 1
› ››
Fig. 84
i
s below the housing provi-
ded.
● Align the jack* so that tab 1 “grips” onto
the hou s
in

g provided on the strut and the
mobile base 2 is resting on the ground. The
b a
se p

late 2 should fall vertically with re-
s pect
t
o the support point 1 .
● Continue turning the jack* until the wheel
i s
s

lightly lifted off the ground. WARNING
● Mak e s

ure that the jack* remains stable. If
the surface is slippery or soft, the jack* could
slip or sink, respectively, with the resultant
risk of injury.
● Only raise the vehicle with the jack* sup-
plied by
the manufacturer. Other vehicles
could slip, with the consequent risk of injury.
● Only mount the jack* on the support points
designed f
or this purpose on the strut, and
always align the jack correctly. If you do not,
the jack* could slip as it does not have an ad-
equate grip on the vehicle: risk of injury!
● The height of the parked vehicle can
chan
ge as a result of variations in tempera-
ture and loading. CAUTION
The vehicle must not be raised on the cross-
bar . On

ly place the jack* on the points de-
signed for this purpose on the strut. Other-
wise, the vehicle may be damaged. Removing and fitting the wheel
Change the wheel after loosening the wheel
bolts
and r

aising the vehicle with the jack.
Taking off the wheel
● Unscrew the wheel bolts using the box
sp anner and p

lace them on a clean surface.
● Take off the wheel ›››
.
P uttin
g on the s
pare wheel
When fitting tyres with a compulsory rotation
direction, observe the instructions in
››› page 69.
● Mount the wheel.
● Screw on the wheel bolts in position and
tighten them loosely
with a box spanner.
● Carefully lower the vehicle using the jack*.
● Tighten the wheel bolts in diagonal pairs
usin
g the wheel brace.
The wheel bolts should be clean and turn
easily. Before fitting the spare wheel, inspect 68