light Seat Leon 5D 2017 Owner's Guide

Safety
●
Alw a
ys switch off the ignition before disa-
bling the front passenger airbag! Failure to do
so could result in a fault in the airbag deacti-
vation system.
● Never leave the key in the airbag disabling
switc
h as it could get damaged or enable or
disable the airbag during driving.
● If for any reason an airbag is deactivated,
reactiv
ate it as soon as possible so that it can
fulfil its protective function. Airbag system control lamps

It lights up on the combi-in-
strument
Fault in airbag
system and seat
belt tensioners.Have the system checked immedi-
ately by a specialised workshop.


It lights up on the dash panel
Front passenger
front airbag disa-
bled.Check whether the airbag should
remain disabled  
It lights up on the dash panel
Front passenger
front airbag ena-
bled.The control lamp switches off auto-
matically 60 seconds after the igni-
tion is switched on
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.
If the airbag and seat belt tensioner system
control lamp  remains on or flashes, it indi-
cates a malfunction in the airbag and seat
belt tensioner system ››› . Have the system
c hec
k

ed immediately by a specialised work-
shop.
If the front passenger airbag is deactivated,
the warning lamp      re-
mains lit on the dash panel to remind you
that the airbag is deactivated. If, with the
front passenger airbag deactivated, this lamp
does not remain lit or if it is lit together with
the control lamp  on the dash panel, there
is a fault in the airbag system ››› . If the
c ontr
o

l lamp is flashing, there is a fault in the
disabling of the airbag system ››› . Have the
sy s
t

em checked immediately by a specialised
workshop. WARNING
In the event of a fault in the airbag and seat
belt t en

sioner system, the airbags and seat
belts may not trigger correctly, may fail to
trigger or may even trigger unexpectedly.
● The vehicle occupants run the risk of sus-
taining sev
ere or fatal injuries. Have the sys-
tem checked immediately by a specialised
workshop.
● Do not mount a child seat in the front pas-
senger se
at or remove the mounted child seat! The front passenger front airbag may
deplo
y

during an accident in spite of the
fault. 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 or
harm to the occupants. 90

Self-help
Emergencies
Self -help
V ehic
le tool kit, anti-puncture kit* The tools and anti-puncture kit* are stored
under the floor p
anel

in the luggage compart-
ment.
To access the vehicle tools:
– Lift up the floor surface by the plastic han-
dle u nti

l it is fastened to the tabs on both
sides.
Depending on the vehicle equipment, the an-
ti-puncture kit* is located under the floor
panel in the luggage compartment.
The tool kit includes:
● Jack*
● Wire hook for pulling off the wheel cov-
er*/wheel bolt
cap clip.
● Box spanner for wheel bolts*
● Towline anchorage
● Adapter for the anti-theft wheel bolts*
● Towing bracket device
Some of the items
listed are only provided in
certain model versions, or are optional ex-
tras. Note
The jack does not generally require any main-
ten anc

e. If required, it should be greased us-
ing universal type grease. Tyre repair
TMS (T

yre Mobility System)* Read the additional information carefully
›› ›

 page 65
The Anti-puncture kit* (Tyre Mobility System)
will reliably seal punctures caused by the
penetration of a foreign body of up to about
4 mm in diameter. Do not remove foreign ob-
jects, e.g. screws or nails, from the tyre.
After inserting the sealant residue in the tyre,
you must again check the tyre pressure about
10 minutes after starting the engine.
You should only use the tyre mobility set if
the vehicle is parked in a safe place, you are
familiar with the procedure and you have the
necessary tyre mobility set! Otherwise, you
should seek professional assistance.
Do not use the tyre sealant in the following
cases:
● If the wheel rim has been damaged.
● In outside temperatures below -20°C (-4°F). ●
In the ev ent
of

cuts or perforations in the
tyre greater than 4 mm.
● If you have been driving with very low pres-
sure or a c
ompletely flat tyre.
● If the sealant bottle has passed its use by
date. WARNING
Using the tyre mobility system can be dan-
ger ou

s, especially when filling the tyre at the
roadside. Please observe the following rules
to minimise the risk of injury:
● Stop the vehicle safely as soon as possible.
Park it
at a safe distance from surrounding
traffic to fill the tyre.
● Ensure the ground on which you park is flat
and solid.
● Al

l passengers and particularly children
must
keep a safe distance from the work area.
● Turn on the hazard warning lights to warn
other roa
d users.
● Use the tyre mobility system only if you are
famili
ar with the necessary procedures. Oth-
erwise, you should seek professional assis-
tance.
● The tyre mobility set is intended for tempo-
rary
emergency use only until you can reach
the nearest specialised workshop.
● Replace the repaired tyre with the tyre mo-
bility
set as soon as possible. » 95
Technical data
Advice
Operation
Emergencies
Safety

Emergencies
they should be changed if they are damaged,
or c l
e
aned if they are dirty ››› .
Dam ag
ed w
iper blades should be replaced
immediately. These are available from quali-
fied workshops. WARNING
Worn or dirty windscreen wiper blades reduce
vi s

ibility and increase the risk of accident
and serious injury.
● Always replace damaged or worn wind-
scr
een wiper blades or blades that no longer
clean the windscreen properly. CAUTION
● Damag ed or dir

ty windscreen wipers could
scratch the glass.
● If products containing solvents, rough
spong
es or sharp objects are used to clean
the blades, the graphite layer will be dam-
aged.
● Never use fuel, nail varnish remover, paint
thinner or simil
ar products to clean the win-
dows.
● In icy conditions, always check that the
wiper bl
ades are not frozen to the glass be-
fore using the wipers. In cold weather, it may
help to leave the vehicle parked with the wip-
ers in service position ›››
 page 72. CAUTION
● To pr ev

ent damage to the bonnet and the
wiper arms, only leave them in the service
position.
● Before driving, always lower the wiper
arms. Towing or tow-starting
Genera l

information Read the additional information carefully
› ›
›

 page 69.
Tow-starting means starting the engine of
the vehicle while another pulls it.
Towing means one vehicle pulling another
that is not roadworthy.
If the vehicle comes with the Keyless Access
system, towing is only allowed with the igni-
tion on!
The vehicle battery drains if the vehicle is
towed with the engine switched off and the
ignition connected. Depending on the battery
charge status, the drop in voltage may be so
large, even after just a few minutes, that no
electrical device in the vehicle may work e.g.
the hazard warning lights. In vehicles with
the Keyless Access system, the steering
wheel could lock up. WARNING
If the vehicle has no electrical power, the
brak e light

s, turn signals and all other lights
will no longer function. Do not have the vehi-
cle towed away. Failure to follow this instruc-
tion could result in an accident. WARNING
The risk of accidents is high when tow-start-
ing, f or e

xample, the towed vehicle can easily
be driven into the towing vehicle. CAUTION
If there is no oil in the gearbox or no lubricant
in the autom atic

transmission the car may
only be towed with the driven wheels lifted
clear of the road, or transported on a special
car transporter or trailer. CAUTION
Do not tow a vehicle for more than 50 m in at-
tempt t

o start it. There is risk of damage to
the catalytic converter. Note
● Ple a

se observe related legal requirements.
● Switch on the hazard warning lights of both
vehicl
es. However, observe any regulations
to the contrary. 98

Self-help
●
The to w r
ope must not be twisted. Other-
wise the front tow line anchorage could be
pulled off the vehicle. Indications for tow-starting
Vehicle's should not generally be tow-star-
ted.
The jump s

tart should be used instead
›››  page 70.
For technical reasons, towing the following
vehicles is not allowed:
● Vehicles with an automatic gearbox.
● If the vehicle battery is discharged, be-
cau se in

vehicles with the Keyless Access
locking and ignition system the steering re-
mains locked and the electronic parking
brake cannot be deactivated nor can the elec-
tronic lock of the steering column be re-
leased if they are activated.
● If the battery is flat, it is possible that the
engine contr
ol units may not operate correct-
ly.
However, if the vehicle must absolutely be
tow-started (in the case of manual gearbox-
es):
● Engage the 2nd or 3rd gear.
● Keep the clutch pressed down.
● Switch on the ignition and the hazard warn-
ing lights. ●
Once both v
ehicles are moving, release the
clutch.
● Once the engine starts, press the clutch
and diseng
age the gear to avoid colliding
with the towing vehicle. Note
The vehicle can only be tow-started if the
electr onic

parking brake and, if appropriate,
the electronic lock of the steering column are
deactivated. If the vehicle has no power sup-
ply or there is an electric system fault, the
engine must be tow-started to deactivate the
electronic parking brake and the electronic
lock of the steering column. Anchoring the front tow line
Fig. 98
Right side of the front bumper: tow-
line anc hor
ag

e screwed in. The front towline anchorage is only mounted
if
the
v

ehicle has to be towed. There is a cover with an opening into which
the towline anc

horage is screwed on the right
part of the front bumper.
– To open the cover, press the left side.
– Take the towline anchorage out of the vehi-
cle t

ool kit ››› page 95.
– Screw the towline anchorage into the screw
connection as

far as it will go ››› Fig. 98 and
tighten with the wheel brace.
After use, unscrew the towline anchorage
and fit the cover back on the bumper. Put the
towline anchorage back in the vehicle tool
kit. The towline anchorage should always be
kept in the vehicle.
99
Technical data
Advice
Operation
Emergencies
Safety

Fuses and bulbs
is not running, the gearbox oil pump does
not w
ork
and the gearbox is not adequately
lubricated for higher speeds or longer distan-
ces.
If the vehicle has to be towed with a break-
down truck, it must only be suspended at the
front wheels. Reason: the drive shafts are lo-
cated on the front wheels. If the car is towed
with the rear wheels lifted off the road (I.e.
travelling backwards), the drive shafts also
turn backwards. The planetary gears in the
automatic gearbox then turn at such high
speeds that the gearbox will be severely
damaged in a short time. Note
● If it i

s not possible to tow the vehicle in the
normal way, or if it has to be towed further
than 50 km (30 miles), it must be transported
on a special car transporter or trailer.
● Should the power supply to the selector
lever be int
errupted in position P, the selector
lever will be locked. Before the vehicle can be
recovered/manoeuvred you must manually
release the selector lever ›››
 page 50. Fuses and bulbs
F u
se

s
Introduction In general, a fuse can be assigned to various
electric
al

components. Likewise, an electrical
component can be protected by several
fuses.
Only replace fuses when the cause of the
problem has been solved. If a newly inserted
fuse blows after a short time, you must have
the electrical system checked by a special-
ised workshop as soon as possible. WARNING
The high voltages in the electrical system can
give seriou s

electrical shocks, causing burns
and even death!
● Never touch the electrical wiring of the igni-
tion syst
em.
● Take care not to cause short circuits in the
electrica
l system. WARNING
Using unsuitable fuses, repairing fuses or
bridging a c urr

ent circuit without fuses can
cause a fire and serious injury. ●
Never u se a f

use with a higher value. Only
replace fuses with a fuse of the same amper-
age (same colour and markings) and size.
● Never repair a fuse.
● Never replace a fuse by a metal strip, staple
or simil
ar. CAUTION
● To pr ev

ent damage to the vehicle's electric
system, before replacing a fuse always turn
off the ignition, the lights and all electrical
elements and remove the key from the igni-
tion.
● If you replace a fuse with higher-rating
fuse,
you could cause damage to another part
of the electrical system.
● Protect the fuse boxes when open to pre-
vent the entr
y of dust or humidity as they can
damage the electrical system. Note
● One component m

ay have more than one
fuse.
● Several components may run on a single
fuse. 101
Technical data
Advice
Operation
Emergencies
Safety

Emergencies
Vehicle fuses Fig. 101
On the driver-side dash panel: fuse
bo x
c
over. Fig. 102
In the engine compartment: fuse box
c o
v

er. Read the additional information carefully
› ›
›

 page 63
Only replace fuses with a fuse of the same
amperage (same colour and markings) and
size. Opening and closing the fuse box situated
below the da

sh panel
● Opening: fold the cover down ››
› Fig. 101.
● Closing: push back the cover it in until it
clic
ks into place.
To open the engine compartment fuse box
● Open the bonnet  ›››
page 270.
● Press the locking tabs to release the fuse
box c
over ››› Fig. 102.
● 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.
Fuses in the vehicle interior
No.Consumers/Amps
4Taxis3
5Gateway5
6Automatic gearbox lever5
7Air conditioning and heating control
panel, heating the back window.10
8Diagnosis, handbrake switch, light
switch, reverse light, interior lighting,
lit-up door sill10
9Steering column5
10Radio display7.5
11Left lights40
No.Consumers/Amps
12Radio20
14Air conditioner fan40
15KESSY10
16Connectivity Box.7.5
17Instrument panel7.5
18Rear camera7.5
19KESSY7.5
214x4 Haldex Control Unit15
22Trailer15
23Sunroof30
24Right lights40
25Left door30
26Heated seats20
27Interior light30
28Trailer25
32Parking aid control unit, front camera,
radar7.5
33Airbag5
34Reverse switch, climate sensor, electro-
chromic mirror, rear power sockets
(USB)7.5
35Diagnosis, headlight control unit,
headlight adjuster10 102

Fuses and bulbsNo.Consumers/Amps
36Right LED headlight7.5
37Left LED headlight7.5
38Trailer25
39Right door30
4012V socket20
42Central locking40
43SEAT Sound, beats sound CAN and
MOST.30
44Trailer15
45Electric driver's seat15
47Rear window wiper15
49Starter motor; clutch sensor5
52Driving mode.15
53Heated rear window30
Fuse arrangement in engine compartment
No.Consumers/Amps
1ESP control unit25
2ESP control unit40/60
3Engine control unit (diesel/pet-
rol)30/15
4Engine sensors5/10
No.Consumers/Amps
5Engine sensors7.5/10
6Brake light sensor5
7Engine power supply5/10
8Lambda probe10/15
9Engine5/10/20
10Fuel pump control unit10/15/20
11PTC40
12PTC40
13Automatic gearbox control unit15/30
15Horn15
16Fuel pump control unit5/15/20
17Engine control unit7.5
18Terminal 30 (positive reference)5
19Front windscreen washer30
20Alarm horn10
22Engine control unit5
23Starter motor30
24PTC40
31Electronic differential CUPRA15
33Automatic gearbox pump30
CAUTION
● Alw a

ys carefully remove the fuse box cov-
ers and refit them correctly to avoid problems
with your vehicle.
● Protect the fuse boxes when open to avoid
the entry of
dust or humidity. Dirt and humid-
ity inside fuse boxes can cause damage to
the electrical system. Note
● In the v ehic

le, there are more fuses than
those indicated in this chapter. These should
only be changed by a specialised workshop.
● Positions not containing a fuse do not ap-
pear in the fo
llowing tables.
● Some of the equipment listed in the tables
below pert
ain only to certain versions of the
model or are optional extras.
● Please note that the above lists, while cor-
rect at
the time of printing, are subject to
change. Changing bulbs
Topic
intr

oduction Read the additional information carefully
› ›
›

 page 64.
Changing bulbs requires a certain degree of
practical skill. »
103
Technical data
Advice
Operation
Emergencies
Safety

Emergencies
If you choose to change the engine compart-
ment l
amp
s yourself, remember that it is a
dangerous area ››› in Working in the en-
gine c omp
ar

tment on page 270.
Always use identical bulbs with the same
designation. The name can be found on the
base of the bulb holder.
Depending on how equipped the vehicle is,
there are different sets of headlights and tail
lights:
● Halogen headlights.
● Full-LED main headlights*
● Halogen headlights with LED daytime run-
ning lights*
● Re

ar bulb light
● LED rear light*
Ful
l-LED headlight system*
Full-LED headlights handle all light functions
(daylight, side light, turn signal, dipped
beam and route light) with light emitting di-
odes (LEDs) as a light source.
Full-LED headlights are designed to last the
lifetime of the car and light bulbs cannot be
replaced. In case of headlight failure, go to
an authorised workshop to have it replaced. WARNING
● Tak e p

articular care when working on com-
ponents in the engine compartment if the en-
gine is warm. Risk of burns.
● Bulbs are highly sensitive to pressure. The
glas
s can break when you touch the bulb,
causing injury.
● When changing bulbs, please take care not
to injure
yourself on sharp edges, in particu-
lar on the headlight housing. CAUTION
● Remo v

e the ignition key before working on
the electric system. Otherwise, a short circuit
could occur.
● Switch off the lights and the parking light
before c
hanging a bulb.
● Take good care to avoid damaging any com-
ponents. For the sake of the environment
Please ask your specialist retailer how to dis-
pose of u

sed bulbs in the proper manner. Note
● Ple a

se check at regular intervals that all
lighting (especially the exterior lighting) on
your vehicle is functioning properly. This is
not only in the interest of your own safety,
but also that of all other road users. ●
Bef or

e changing a bulb, make sure you
have the correct new bulb.
● Do not touch the glass part of the bulb with
your bar
e hands, use a cloth or paper towel
instead, since the fingerprints left on the
glass will vaporise as a result of the heat gen-
erated by the bulb, they will be deposited on
the reflector and will impair its surface.
● Depending on the level of equipment fitted
in the vehic
le, LEDs may be used for part or
all of the interior and/or exterior lighting.
LEDs have an estimated life that exceeds than
that of the car. If an LED light fails, go to an
authorised workshop for its replacement. 104

Fuses and bulbs
Change the front bulbs Dip ped he
a
dlight bulbFig. 103
Dipped beam headlights. Fig. 104
Dipped beam headlights. –
Raise the bonnet.
– Move the loops ››
›
Fig. 103 1 in the direc-
tion of the arr
o
w and remove the cover. –
Remov
e connector ››› Fig. 104 2 from the
b u
l
b.
– Unclip the retainer spring ›››
Fig. 104 3 pressing inwards to the right.
– Extract the bulb and fit the replacement so
th at
the lug on the b

ase fits into the recess
on the reflector.
Day light bulb Fig. 105
Day light bulb. –
Raise the bonnet.
– Turn the bulb holder ››
›
Fig. 105 1 to the
l ef
t
and pull.
– Remove the bulb by pressing on the bulb
holder and t

urning it anti-clockwise at the
same time.
– Installation involves all of the above steps
in rever

se sequence. Turn signal bulb
Fig. 106
Turn signal bulb. Fig. 107
Turn signal bulb. –
Raise the bonnet.
– Move the loop ››
›
Fig. 106 1 in the direc-
tion of the arr
o
w and remove the cover.
– Turn the bulb holder ›››
Fig. 107 2 anti-
c loc
k
wise and pull. »
105
Technical data
Advice
Operation
Emergencies
Safety

Emergencies
– Remo
v
e the bulb by pressing on the bulb
holder and turning it anti-clockwise at the
same time.
– Installation involves all of the above steps
in rever

se sequence.
Main beam headlight bulb Fig. 108
Main beam headlight bulb. Fig. 109
Main beam headlight bulb. –
Rai
se the bonnet

.
– Move the loop ›››
Fig. 108 1 in the direc-
tion of the arr
o
w and remove the cover.
– Slide connector ›››
Fig. 109 2 to the left or
right and p
u
ll.
– Remove the bulb by disconnecting the con-
nector.
– In

stallation involves all of the above steps
in rever
se sequence. Fog light bulb* 3 Valid only for versions with incandescent bulbs
Fig. 110
Fog light: extracting the grille.106