2017 Seat Arona ABS

Emergencies
holder. The securing tabs must click into
p l
ac
e. CAUTION
Take care when removing the rear light unit to
mak e s

ure there is no damage to the paint-
work or any of its components. Note
● Mak e s

ure you have a soft cloth ready to
place under the glass on the rear light unit, to
avoid any scratches.
● For LED lights, you can only change the turn
signa
l and reverse light bulbs. Rear lights (in the rear lid)
Fig. 117
Rear lid open: remove the lid. Fig. 118
Remove the bulb holder. Follow the steps indicated:
Chec k
whic
h of the bulbs is defective.
Open the rear lid.
Remove the rear lid cover in the direc-
tion indicated ››› Fig. 117.
Remove the bulb connector
››› Fig. 118 1 .
R emo
v

e the bulb holder unlocking the
retaining tabs A .
Ch an
g

e the damaged bulb.
Use a cloth to remove any fingerprints
from the glass part of the bulb.
Check that the new bulb works properly.
Carry out the same actions in reverse or-
der for assembly and pay special atten-
tion to placing the bulb holder, ensuring
that the tabs are properly secured.
1.
2.
3.
4.
5.
4.
6.
7.
8. Note
● For LED light s,

you can only change the turn
signal and reverse light bulbs. Number plate light
–
Insert the flat part of a screwdriver into the
spec i

al slot and remove the bulb.
– Remove the bulb holder, by turning it until
it is

free.
– Change the bulb.
– Replace the bulb holder, by turning it until
it fits f

ully.
– Fit the light into the space and press until
you hear a “c

lick”.
106

Fuses and bulbs
Side turn signals Fig. 119
Turn signal integrated in the rear
v iew mirr
or The side turn signals are LEDS and are inte-
gr
at
ed in the r
ear view mirrors.
In case of failure, go to an authorised work-
shop to have it replaced.
Additional brake light Given the difficulty involved in the replace-
ment
of
thi

s light it should be done by Tech-
nical Services. Changing the interior bulbs
Interior light and fr
ont reading lights Fig. 120
Front reading light. To remove the glass
– Insert a fine screwdriver between the cas-
ing and the gl
a

ss ››› Fig. 120.
– Carefully remove the glass, levering it to
avoid pos

sible damage.
To replace the bulbs
– Pull the bulbs outwards.
– To remove the central bulb, hold and press
to one side.
As

sembly
– Proceed in the reverse order, pressing gen-
tly on the outer edg

e of the side light. –
First
fit the glass with the fastening tabs
over the frame of the switch. Next press the
front part until the two long tabs click on
the support. Note
In LED courtesy lights it is not possible to re-
pl ac

e the light sources. If the light does not
work, take the vehicle to an official Service. 107
Technical data
Advice
Operation
Emergencies
Safety

Driving
a great extent on the conditions under which
the v
ehic
le is operated and the way the vehi-
cle is driven. If you often drive in town, drive
short distances or have a sporty driving style,
we recommend that you have the thickness
of your brake pads checked by technical serv-
ices more frequently than recommended in
the Maintenance Programme.
If you drive with wet brakes, for example, af-
ter crossing areas of water, on days of heavy
rainfall or even after washing the car, the ef-
fect of the brakes is reduced as the brake
discs are wet or even frozen (in winter): in
this case, the brakes should be “dried” by
pressing the brake pedal several times. WARNING
Longer braking distances and faults in the
brak e sy

stem increase the risk of accidents.
● New brake pads must be run in and do not
have the c
orrect friction during the first
200 km. This reduced braking capacity may
be compensated for by pressing on the brake
pedal a little harder, which also applies when
the brake pads have to be changed further
on.
● If brakes are wet or frozen, or if you are
driving on r
oads which have been salted,
braking power may be lower than normal.
● On steep slopes, if brakes are excessively
used, they w
ill overheat. Before driving down
a long steep slope, it is advisable to reduce
speed and change down into a lower gear or range (depending on the type of transmis-
sion).
Thu

s, make use of engine braking and
relieve the brakes.
● Never let the brakes “drag” by applying
light pre
ssure. Continuous braking will cause
the brakes to overheat and the braking dis-
tance will increase. Apply and then release
the brakes alternately.
● Never let the vehicle run with the engine
switc
hed off. The braking distance is in-
creased considerably when the brake servo is
not active.
● If the brake fluid loses its viscosity and is
subj
ected to heavy use, vapour bubbles can
form in the brake system. This reduces the ef-
ficiency of the brakes.
● Non-standard or damaged front spoilers
coul
d restrict the airflow to the brakes and
cause them to overheat. Before purchasing
accessories please observe the relevant in-
structions ››› page 255, Modifications.
● If a brake system circuit fails, the braking
dist
ance will be increased considerably. Con-
tact a specialised workshop immediately and
avoid unnecessary journeys. Control lamp
Situations in which the warning lamp lights
up *
●
the brake fluid level is too low
› ›
›

page 275. ●
there is
a fault in the brake system.
This warning lamp can light up together with
the ABS system warning lamp. WARNING
● If the br ak

e warning lamp does not go out
or if it lights up when driving, the brake fluid
level in the reservoir is too low so there is a
risk of an accident ››› page 275, Brake fluid.
Stop the vehicle and do not drive on. Obtain
technical assistance.
● If the brake warning lamp lights up  to-
gether w
ith the ABS lamp  this could be
due to an ABS fault. This could cause the rear
wheels to lock quickly when you brake. This
could cause the rear to break away. Risk of
skidding. Stop the vehicle and seek technical
assistance. Handbrake
Fig. 176
Handbrake between the front seats. » 175
Technical data
Advice
Operation
Emergencies
Safety

Driving
Braking and stability systems El ectr
onic
Stability Control (ESC)*This Electronic Stability System reduces the
risk
of

skidding and improves the vehicle's
stability and ability to hold the road.
The Electronic Stability Control (ESC) contains
the electronic differential lock (EDL) and the
traction control system (ASR). The ESC works
together with the ABS. Both control lamps
will light up if the ESC or ABS systems are
faulty.
The ESC system is started automatically
when the engine is started.
The ESC system is always active and cannot
be switched off. With the Easy Connect sys-
tem it is only possible to deactivate the ASR
or else select Sport mode.
The ASR can be deactivated when wheel spin
is desirable ›››
page 178.
For example:
● When driving with snow chains.
● When driving in deep snow or on loose sur-
fac e

s.
● When the vehicle is stuck, to rock it back-
ward
s and forwards.
Press the button to switch the ASR back on
when you no longer need wheel spin. Electronic Stability Control (ESC)*
The ESC r

educes the risk of skidding by brak-
ing the wheels individually.
The system uses the steering wheel angle
and road speed to calculate the changes of
direction desired by the driver, and constant-
ly compares them with the actual behaviour
of the vehicle. When irregularities occur, for
example, if the vehicle begins to skid, the
ESC brakes the appropriate wheel automati-
cally.
The forces acting on the braked wheel bring
the vehicle back to a stable condition. If the
vehicle tends to oversteer (the rear end
slides out), the system will act on the front
wheel on the outside of the turn.
Control lamp
There are two control lamps for the electronic
stability control. The lamp  provides infor-
mation concerning function and  disconnec-
tion status.
Both control lamps light up together when
the ignition is switched on and should turn
off after approximately 2 seconds. This is the
time taken for the function check.
This programme includes the ABS, EDL and
ASR. It also includes emergency braking as-
sistance (BAS). The control lamp
 has the following func-
tions:
● It flashes whilst driving when the ASR/ESC
is activ
ated.
● It will light up if there is a fault in the ESC.
● As the ESC operates in conjunction with the
ABS, the ESC light
will also come on if a fault
should occur in the ABS.
If the ESC control lamp  lights up and stays
on after the engine is started, this may mean
that the control system has temporarily
switched off the ESC. In this case the ESC can
be reactivated by switching the ignition off
and then on again. If the control lamp goes
out, this means the system is fully functional.
The  lamp provides information about the
disconnection status of the system:
● It stays lit when the ASR is disconnected or
if y
ou select ESC Sport mode, only by means
of Easy Connect. WARNING
● Do not f or

get that the electronic stability
control ESC cannot defy the laws of physics.
This should be kept in mind, particularly on
slippery and wet roads and when towing a
trailer.
● Always adapt your driving style to suit the
condition of the r
oads and the traffic situa-
tion. The greater safety provided by the ESC
should not encourage you to run any risks. » 177
Technical data
Advice
Operation
Emergencies
Safety

Operation
CAUTION
● To en s
ure that the ESC works correctly, all
four wheels must be fitted with the same
tyres. Any differences in the rolling radius of
the tyres can cause the system to reduce en-
gine power when this is not desired.
● Any modifications made to the vehicle (for
examp
le, to the engine, brake system, run-
ning gear or to the combination of wheels
and tyres) may affect the operation of the
ABS, EDL, ESC and ASR. Traction control system (ASR)
The traction control system prevents the driv-
en wheel
s
fr

om spinning when the vehicle is
accelerating.
Description and operation of the traction
control system during acceleration (ASR)
The ASR system intervenes by reducing en-
gine power and preventing the driven wheels
from slipping during acceleration.
TCS helps the car to start moving, accelerate
and climb a gradient in slippery conditions
where this may otherwise be difficult or even
impossible.
The ASR automatically switches on when the
engine is started. If necessary, it could be
switched on or off using the Easy Connect
system*. When the ASR is off, the warning lamp lights
up . The ASR shoul

d normally be left on.
Only in exceptional circumstances, when
wheel spin is required, it can be turned off
using the Easy Connect system menu, for ex-
ample:
● With compact temporary spare wheel.
● When using the snow chains.
● When driving in deep snow or on soft ter-
rain.
● When the v

ehicle is bogged-down, to free it
“by r
ocking it.”
The ASR should be switched on again as
soon as possible.
Control lamp
There are three control lamps for the traction
control system:  (for vehicles equipped
with M-ABS),  (for vehicles equipped with
ESC) and . Both control lamps light up to-
gether when the ignition is switched on and
should turn off after approximately 2 sec-
onds, which is the time taken for the function
check.
The  or  lamp has the following function:
● It flashes when the ASR is working if the ve-
hicle i
s moving.
If the system is deactivated or if it has any
fault, the warning lamp will remain lit. The warning lamp will also light up if a fault
should oc

cur in the ABS because the ASR op-
erates in conjunction with the ABS. For fur-
ther information, see ››› page 178.
The  lamp provides information about the
disconnection status of the system:*
● It stays lit when the ASR is disconnected
via E
asy Connect.
By means of Easy Connect, the ASR function
is reactivated and the warning lamp switched
off. WARNING
● Remember th at

not even the ASR can defy
the laws of physics. This should be kept in
mind, particularly on slippery and wet roads
and when towing a trailer.
● Always adapt your driving style to suit the
condition of the r
oads and the traffic situa-
tion. The greater safety provided by the ASR
should not encourage you to run any risks. CAUTION
● To en s

ure that the ASR works correctly,
identical tyres should be fitted on all four
wheels. Any differences in the rolling radius
of the tyres can cause the system to reduce
engine power when this is not desired.
● Any modifications made to the vehicle (for
examp
le, to the engine, brake system, run-
ning gear or to the combination of wheels 178

Driving
and tyres) may affect the operation of the
ABS and ASR.
Connecting/disconnecting ESC and
ASR*
The ESC is switched on automatically when
the engine i
s
started, and only works when
the engine is running and includes the ABS,
EDS and ASR systems.
The ASR and ESC function should only be
switched off in situations in which traction is
insufficient, among others:
● When driving in deep snow or on surfaces
that ar

e not very firm.
● To “free” the vehicle if it gets stuck.
Then switc
h the ASR and ESC function back
on.
Depending on finishes and versions, it is
possible either to disconnect only the ASR or
else activate ESC Sport mode.
ESC in “Sport” mode
Sport mode can be connected via the Easy
Connect ››› page 118 system menu. The ESC
and the traction control system (ASR) have
only a limited ability to stabilise the vehicle.
The control lamp  lights up. For vehicles
with a driver information system*, the driver will be shown the
electronic stability
control (ESC) option: sport.
Warning! Limited stability.
Disab

le ESC “Sport” mode
Through the Easy Connect system menu
››› page 118. The warning lamp  will switch
off. For vehicles with a driver information sys-
tem*, the driver will be shown the elec-
tronic stability control (ESC)
option: on.
Disable ASR
The Easy Connect system menu is used to
switch off the ASR ››› page 118. The traction
control system will be disabled.
The control lamp  lights up. For vehicles
with a driver information system* the driver
will be informed that ASR is disabled.
Activate ASR
The Easy Connect system menu ››› page 118
is used to switch on the ASR. The traction
control system will be enabled.
The control lamp  switches off. For vehicles
with a driver information system* the driver
will be informed that ASR is enabled.
● Activate or deactivate the ASR or ESC func-
tion in the Easy
Connect system by means of
the  button and the
S
ET
TINGS and
E SC


System function buttons. WARNING
You should switch on the ESC Sport mode on-
ly if the tr

affic conditions and your driving
ability allow you to do so safely: risk of skid-
ding!
● With ESC in Sport mode, the stabilising
function w
ill be limited to allow for a sportier
drive. The driving wheels could spin and the
vehicle could skid. Note
If the ASR is disconnected or the ESC’s Sport
mode is sel

ected, cruise control* will be
switched off. Electronic differential lock (EDS)*
The EDL operates along with the ABS in vehi-
c
l
e

s equipped with Electronic Stability Con-
trol (ESC)*.
EDL helps the vehicle to start moving, accel-
erate and climb a gradient in slippery condi-
tions where this may otherwise be difficult or
even impossible.
It uses the ABS sensors to monitor the speed
of the driven wheels.
At speeds of up to approximately 80 km/h
(50 mph), it is able to balance out differences
in the speed of the driven wheels of approxi-
mately 100 rpm/min caused by a partially
slippery road surface. It does this by braking »
179
Technical data
Advice
Operation
Emergencies
Safety

Operation
the wheel which has lost traction and distrib-
utin g mor
e driv
ing force to the other driven
wheel via the differential.
To prevent the disc brake of the braking
wheel from overheating, the EDL cuts out au-
tomatically if subjected to excessive loads.
The vehicle will continue to function normally
without EDL. For this reason, the driver is not
informed that the EDL has been switched off.
The EDL will switch on again automatically
when the brake has cooled down.
Control lamp
A malfunction in the EDL is indicated by the
ESC control lamp . Take the vehicle to a
specialised workshop as soon as possible. WARNING
● When acc el

erating on a slippery surface,
for example on ice and snow, press the accel-
erator carefully. Despite EDL, the driven
wheels may start to spin. This could impair
the vehicle's stability.
● Always adapt your driving style to suit road
conditions
and the traffic situation. Do not let
the extra safety afforded by EDL tempt you in-
to taking any risks when driving, this can
cause accidents. CAUTION
Modifications to the vehicle (e.g. to the en-
gine, the brak e sy

stem, running gear or any components affecting the wheels and tyres)
cou
l

d affect the efficiency of the EDL
››› page 255. Hydraulic Brake Assist (HBA)*
The function (Hydraulic Brake Assist HBA) is
only
inc

luded in vehicles with ESC.
In an emergency, most drivers brake in time,
but not with maximum force. This results in
unnecessarily long braking distances.
This is when the brake assist system comes
into action. When pressing the brake pedal
rapidly, the assistant interprets it as an emer-
gency. It very quickly builds up the full brake
pressure so that the ABS can be activated
more quickly and efficiently, thus reducing
braking distance.
Do not reduce the pressure on the brake ped-
al, since the brake assist system switches off
automatically as soon as you release the
brake.
Automatic hazard warning lights activation
The brake lights flash automatically to indi-
cate that the vehicle is braking suddenly or in
an emergency situation. If the emergency
braking continues until the vehicle comes to
a standstill, the hazard warning lights will
then come on and the brake lights will re-
main on permanently from that moment. The warning lights will automatically switch off
when the v
ehic

le begins to move again or
when the "warning" light button is pressed. WARNING
● The risk of

accident is higher if you drive
too fast, if you do not keep your distance from
the vehicle in front, and when the road sur-
face is slippery or wet. The increased acci-
dent risk cannot be reduced by the brake as-
sist system.
● The brake assist system cannot defy the
law
s of physics. Slippery and wet roads are
dangerous even with the brake assist system!
Therefore, it is essential that you adjust your
speed to suit the road and traffic conditions.
Do not let the extra safety features tempt you
into taking any risks when driving. Anti-lock brake system (ABS)
The anti-lock brake (ABS) system prevents
the wheel
s
fr

om locking during braking and
is an important part of the vehicle's active
safety system.
How the ABS works
If one of the wheels turns too slowly in rela-
tion to the vehicle's speed, and is close to
locking, the system will reduce the braking
pressure to this wheel. The driver is made
aware of this control process by a pulsating
of the brake pedal and audible noise. This is
180

Driving
a deliberate warning to the driver that one or
mor e of
the wheel
s is tending to lock and the
ABS control function has intervened. In this
situation it is important to keep the brake
pedal fully depressed so the ABS can regu-
late the brake application. Do not “pump”.
If you brake hard on a slippery road surface,
the best possible control is retained as the
wheels do not lock.
However, ABS will not necessarily guarantee
shorter braking distances in all conditions.
Braking distance could even be further if you
brake on gravel or on fresh snow on a slip-
pery surface.
Control lamp
The control lamp  lights up for a few sec-
onds when the ignition is switched on. It
goes out again after the system has run
through an automatic test sequence.
There is a fault in the ABS if:
● The control lamp  does not
light up when
the ignition is switched on.
● The control lamp does not go out again af-
ter a few sec
onds.
● The control lamp lights up when the vehicle
is mo
ving.
The vehicle can still be braked in the normal
way, without the ABS function. Take the vehi- cle to a specialised workshop as soon as
poss

ible.
If there is a fault in the ABS, the ESC* and the
tyre pressure control lamp will also light up.
Brake system fault
If the ABS warning lamp  lights up together
with the brake warning lamp , there is a
fault in the ABS function and in the brake
system ››› .
WARNING
● The anti-lock br

ake system cannot defy the
laws of physics. Slippery and wet roads are
dangerous even with ABS! If you notice that
the ABS is working (to counteract locked
wheels under braking), you should reduce
speed immediately to suit the road and traffic
conditions. Do not let the extra safety fea-
tures tempt you into taking any risks when
driving.
● The effectiveness of ABS is also determined
by the ty
res fitted ››› page 278.
● If the running gear or brake system is modi-
fied, the effectivene
ss of the ABS could be se-
verely limited. WARNING
● Bef or

e opening the bonnet, read and ob-
serve the warnings ››› page 267, Working in
the engine compartment. ●
If the br ak

e system warning lamp  should
light up together with the ABS warning lamp
 , stop the vehicle immediately and check
the brake fluid level in the reservoir
››› page 275, Brake fluid. If the brake fluid
level has dropped below the “MIN” mark you
must not drive on. Risk of accident. Obtain
technical assistance.
● If the brake fluid level is correct, the fault in
the brake sy
stem may have been caused by a
failure of the ABS system. This could cause
the rear wheels to lock quickly when you
brake. This could cause the rear to break
away. Risk of skidding. Stop the vehicle and
seek technical assistance. Electronic differential lock (XDS)*
When taking a curve, the driveshaft differen-
ti
al
mec

hanism allows the outer wheel to turn
at a higher speed than the inner wheel. In
this way, the wheel that is turning faster (out-
er wheel) receives less drive torque than the
inner wheel. This may mean that in certain
situations the torque delivered to the inner
wheel is too high, causing the wheels to
spin. On the other hand, the outer wheel is
receiving a lower drive torque than it could
transmit. This causes an overall loss of lateral
grip on the front axle, resulting in understeer
or “lengthening” of the trajectory.
The XDS system can detect and correct this
effect via the sensors and signals of the ESC. »
181
Technical data
Advice
Operation
Emergencies
Safety