2017 Seat Leon 5D brake fluid

Frequently Asked Ques-
tion
sBefore driving
How do you adjust the seat?
››› page 19
How do you adjust the steering wheel? ››› page 21
How do you adjust the exterior mirrors? ››› page 21
How do you turn on the exterior lights? ››› page 30
How does the automatic gearbox selector lever work?
››› page 50
How do you refuel? ››› page 58
How do you activate the windscreen wipers and wind-
screen washer system? ››› page 32
Emergency situations
A warning lamp lights up or flashes. What does this
mean? ››› page 47
How do you open the bonnet? ››› page 17
How do you perform a jump start? ››› page 70
Where is the vehicle tool kit located? ››› page 66
How do you repair a tyre with the anti-puncture kit?
››› page 65
How do you change a wheel? ››› page 66
How do you change a fuse? ››› page 63
How do you change a light? ››› page 64
How do you tow a vehicle? ››› page 69
Useful tips
How do you set the time? ››› page 115
When should the vehicle inspection should be per-
formed? ››› page 44
What functions do the buttons/thumbwheels on the
steering wheel perform? ››› page 121
How do you remove the luggage compartment cover?
››› page 169
How do you drive in an economical and environmental-
ly-friendly way? ››› page 200
How do you check and top up the engine oil?
››› page 59
How do you check and top up the engine coolant?
››› page 60
How do you top up the windscreen washer fluid?
››› page 61
How do you check and top up the brake fluid?
››› page 61
How do you check and adjust tyre pressure values?
››› page 280
Vehicle washing tips ››› page 257
Functions of interest
Easy Connect, CAR menu ››› page 33
How does the START-STOP system work? ››› page 205
What parking assistants are available? ››› page 237
How does the rear assist work? ››› page 243
How does the adaptive cruise control work?
››› page 214
How can the SEAT driving mode be adjusted?
››› page 230
How does the lane departure warning system work?
››› page 224
How does tyre pressure monitoring work? ››› page 284
How do you open the vehicle without a key (Keyless Ac-
cess)? ››› page 129
Interior lighting and ambient light ››› page 147

Table of Contents
Automatic gearbox/DSG automatic gear-
bo x*
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Ad
dress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Run-in and economical driving . . . . . . . . . . . . . 199
Power management . . . . . . . . . . . . . . . . . . . . . . 201
Engine management and emission control sys-
tem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Driv

ing tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Driver assistance systems . . . . . . . . . . . . . . . . . 205
Start-Stop System* . . . . . . . . . . . . . . . . . . . . . . . 205
Auto Hold Function* . . . . . . . . . . . . . . . . . . . . . . 208
Cruise control system (CCS)* . . . . . . . . . . . . . . . 209
Emergency brake assist system (Front As-
sis
t)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Adaptive Cruise Control ACC* . . . . . . . . . . . . . . 214
Lane Assist system* . . . . . . . . . . . . . . . . . . . . . . 224
Traffic Jam Assist . . . . . . . . . . . . . . . . . . . . . . . . 227
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . 228
SEAT Drive Profile* . . . . . . . . . . . . . . . . . . . . . . . 230
Traffic sign detection system* . . . . . . . . . . . . . . 233
Fatigue detection (break recommendation)* . . 236
Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Rear Assist “Rear View Camera”* . . . . . . . . . . . 243
Towing bracket device . . . . . . . . . . . . . . . . . . . . 246
Towing bracket device* . . . . . . . . . . . . . . . . . . . 246
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Care and maintenance . . . . . . . . . . . . . . . . . . . . 256
Accessories and modifications to the vehi-
cle
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Care and cleaning . . . . . . . . . . . . . . . . . . . . . . . 257
Vehicle exterior care . . . . . . . . . . . . . . . . . . . . . . 257
Caring for the vehicle interior . . . . . . . . . . . . . . 261
Checking and refilling levels . . . . . . . . . . . . . . . 264
Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Engine compartment . . . . . . . . . . . . . . . . . . . . . 270 Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Windscreen washer reservoir . . . . . . . . . . . . . . 276
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Wheels
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . 279
Tyre monitoring systems . . . . . . . . . . . . . . . . . . 283
Temporary spare wheel . . . . . . . . . . . . . . . . . . . 286
Winter service . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Technical data . . . . . . . . . . . . . . . . . . . . . . . . 289
Technical specifications . . . . . . . . . . . . . . . . . . 289
Important . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Vehicle identification data . . . . . . . . . . . . . . . . . 289
Fuel consumption data . . . . . . . . . . . . . . . . . . . 290
Trailer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Engine data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
6

The essentials
Warning lamps On the in s
trument
panelFig. 51
Instrument panel, on dash panel. Red warning lamps

Central warning lamp: additional
information on the instrument
panel display–

Parking brake on.›››
page
183  
Do not continue driving!
The brake fluid level is too low or
there is a fault in the brake sys-
tem.››› page
186 
Lit up or flashing: Do not continue driving!
Fault in the steering.››› page
198 
Driver or passenger has not fas-
tened seat belt.›››
page
80 
Use the foot brake!›››
page
216» 47

The essentials
To protect the cooling system, the percentage
of a
d
ditive must always be at least 40 %,
even in warm climates where anti-freeze pro-
tection is not required.
If for weather reasons further protection is
necessary, 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 275

. 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 275.

››› in Topping up coolant on page 275
››› page 274 Brake fluid
Fig. 64
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 270
.
The level should be between the  and 
marks. If it is below , please visit a Techni-
cal Service.

››› in Top up brake fluid on page 276
››› page 275 Windscreen washer
Fig. 65
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 270.
To top up, mix water with a product recom-
mended by SEAT.
In cold temperatures, add anti-freeze.

››› in Checking and topping up the
windscreen washer reservoir on
page 276
››› page 276 Battery
The battery is located in the engine compart-
ment
›
›

›  page 270. It does not require » 61

Operation
●
Dependin g on w
eather conditions, it may
become extremely hot or cold inside the vehi-
cle. This can be fatal. Brakes
New brake pads
For the fir
s

t 400 km (250 miles), new brake
pads have not yet reached their maximum
braking capacity, and need to be “run in”
first. However, you can compensate for the
slightly reduced braking effect by applying
more pressure on the brake pedal. Avoid
overloading the brakes while running them
in.
Wear
The rate of wear on the brake pads depends
a great deal on how you drive and the condi-
tions in which the vehicle is operated. This is
a particular problem in urban traffic and
short stretches, or with very sporty driving.
Depending on the speed, the braking force
and the environmental conditions (for exam-
ple, the temperature, air humidity, etc.)
noises may be produced on braking.
Wet roads or road salt
In certain situations (for example, on driving
through flooded areas, in severe downpours
or after washing the vehicle) the braking ac- tion could be delayed if the discs and pads
are d
amp

, or frozen in winter. In this case the
brakes should be “dried” by pressing the
brake pedal several times.
At high speed and with the windscreen wip-
ers activated, the brake pads will briefly
touch the brake discs. This takes place, al-
though unnoticeable to the driver, at regular
intervals to improve the response time of the
brakes when they are wet.
The effectiveness of the brakes can also be
temporarily reduced if the vehicle is driven
for some distance without using the brakes
when there is a lot of salt on the road in win-
ter. The layer of salt that accumulates on the
discs and pads can be removed by gently ap-
plying the brakes a few times.
Corrosion
There may be a tendency for corrosion to
form on the discs and dirt to build up on the
brake pads if the vehicle is used infrequently
or the brakes are not used very often.
If the brakes are not used frequently, or if
rust has formed on the disks, it is advisable
to clean off the pads and disks by braking
firmly a few times at a moderately high speed
››› .
F au
lt

in the brake system
If the brake pedal travel should ever increase
suddenly, this may mean that one of the two brake circuits has failed. Drive immediately
to the near

est specialised workshop and
have the fault repaired. Drive there slowly
and remember that you will have to apply
more pressure on the brake pedal and allow
for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if
the brake fluid level is too low. The brake flu-
id level is monitored electronically.
Brake servo
The brake servo increases the pressure you
apply to the brake pedal. It works only when
the engine is running. WARNING
● App ly

the brakes heavily to clean the brake
system only in a suitable traffic situation. Do
not put other road users in danger: there is
risk of causing an accident.
● Ensure the vehicle does not move while in
neutral, when the en
gine is stopped. Failure
to follow this instruction could result in an
accident.
● 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. 186

Advice
Plastic parts Plastic parts are cleaned with a power wash-
er. If
thi
s is not sufficient, plastic parts
should only be treated with a special solvent-
free plastic cleaning agent . Do not use paint-
work cleaners, polishes or wax on plastic
parts.
Carbon parts The carbon parts on your vehicle have a pain-
t
ed s
ur

face. They do not need any special
care and are cleaned just like any other pain-
ted part ›››
page 257.
Paint damage Minor damage to the paint, such as scratches
or s
t
one c

hips, should be touched up without
delay before the metal starts to corrode. Suit-
able touch-up brushes or sprays for your car
can be obtained from a SEAT Official Service.
The number of the original paint finish on the
vehicle is given on the data sticker
››› page 289.
If corrosion is already visible it must be thor-
oughly removed by a specialised workshop. Windows Clear vision is an essential safety factor.
The wind
s

creen must not be cleaned with in-
sect remover or wax, otherwise the wind-
screen wipers will not function properly (jud-
dering).
Traces of rubber, oil, grease or silicone can
be removed with a window cleaning solution
or a silicone remover. Wax residue can only
be removed with a special cleaner. Your SEAT
Official Service will be able to provide you
with more detailed information.
The windows should also be cleaned on the
inside at regular intervals.
Use a separate cloth or chamois to dry the
windows. Cloths used for waxing and polish-
ing contain residues that will cause smears
on the glass. WARNING
Do not use water-repellent coatings on the
wind s

creen. In bad visibility conditions (e.g.
in the rain, dark or with a low sun), these
coatings may cause dazzle: risk of accident!
Such coatings can also cause the windscreen
wiper blades to make noise. CAUTION
● Remo v

e snow and ice from windows and ex-
terior mirrors with a plastic scraper only. To avoid scratches caused by dirt on the glass,
the sc
r

aper should only be pushed in one di-
rection and not moved to and fro.
● The heating element for the rear window is
located on the inner s
ide of the window. To
avoid damaging them, do not apply stickers
to these heating elements.
● Never use warm or hot water to remove
snow and ic
e from windows and mirrors. This
could cause the glass to crack! Rims
The wheels require regular attention to pre-
ser
v
e their ap

pearance. It is important to re-
move road salt and brake dust by washing
the wheels at regular intervals, otherwise the
finish will be impaired.
After washing, the wheels should only be
cleaned with an "acid-free" cleaning agent
for alloy wheels. This is available from SEAT
Official Services and specialist retailers. Nev-
er leave the cleaning agent on the rims for
any longer than specified in the instructions
before rinsing it off. If the wheel cleaner fluid
contains acid it can attack the surfaces of the
wheel bolts.
Car polish or other abrasive agents should
not be used for maintaining the rims. If the
protective coating is damaged, e.g. by flying
stones, the damaged area should be re-
paired immediately.
260

Care and maintenance
WARNING
Please note when cleaning the wheels that
wat er
, ice and road salt can impair the effec-
tiveness of the brakes; this can cause an acci-
dent. Exhaust pipe
It is important to remove road salt and brake
dus
t

by washing the wheels at regular inter-
vals, otherwise the exhaust tail pipe material
could be damaged. To remove impurities, do
not use rim, paint or chrome cleaners or oth-
er abrasive products. Clean the exhaust tail
pipes with cleaning products that are suita-
ble for stainless steel.
SEAT Official Services carry stocks of cleaning
products that have been tested and ap-
proved for use on your vehicle.
Caring for the vehicle interior Scr een f

or the radio/Easy Connect*
and control panel* The display can be cleaned with a soft cloth
and a pr
of
e

ssionally available “LCD cleaner”.
Moisten the cloth with a small amount of the
cleaning fluid. The Easy Connect control panel* should first
be cle

aned with a brush so that no dirt goes
into the device or between the keys and
housing. Next, we recommend cleaning the
Easy Connect control panel* using a cloth
dampened with water and washing-up liquid. CAUTION
● To av oid s

cratching the screen, do not wipe
the display with a dry cloth.
● To avoid damage, ensure that no liquid
goes
into the Easy Connect control panel*. Plastic and leatherette parts
Plastic parts and leatherette can be cleaned
w
ith a d
amp c

loth. If this is not sufficient,
plastic parts and leatherette should only be
treated with a special solvent-free plastic
cleaner.
Textile covers and trim parts Textile covers and trim parts (e.g. seats, door
trim) shou
l
d be c

leaned regularly with a vac-
uum cleaner. This will remove surface dirt
which could otherwise be rubbed into the
textile material during use. Do not use steam
cleaners, as the steam could carry the dirt
deeper into the textile material. Normal cleaning
We rec

ommend that you use a soft sponge or
a commercially available lint-free, micro-fibre
cloth for normal cleaning. Only use brushes
on floor coverings and mats, as other textile
surfaces could become damaged.
In the case of normal surface dirt you can use
a foam cleaner. Use a sponge to spread the
foam on the textile surface and to work it into
the material lightly. However, make sure that
the textile material does not become soaking
wet. Then dab off the foam with a dry and ab-
sorbent cloth (e.g. a micro-fibre cloth) and
vacuum off any residue once the surface is
completely dry.
Cleaning stains
Treat drink stains (such as coffee or fruit
juice, etc.) with a cleaning solution for deli-
cate fabrics. This solution should be applied
with a sponge. If the stains are difficult to re-
move, a washing paste can be applied direct-
ly onto the stain and worked into the fabric.
The surface will then have to be wiped with
clear water to remove any residue left by the
paste. To do so, use a damp cloth or sponge
and then dab the stain with an absorbent
cloth.
Remove chocolate or make-up stains with a
cleaning paste (for e.g., soft soap). Then re-
move the soap with water (wet sponge). »
261
Technical data
Advice
Operation
Emergencies
Safety

Advice
Engine compartment Chec k
in
g levels Fig. 247
Diagram for the location of the various elements. From time to time, the levels of the different
fluid
s
in the

vehicle must be checked. Never
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant expansion tank
Engine oil dipstick
Engine oil filler cap
Brake fluid reservoir
Vehicle battery (underneath the cover)
Windscreen washer reservoir
The checking and refilling of service fluids
are carried out on the components men-
tioned above. These operations are descri-
bed in ››› page 270.
1 2
3
4
5
6 Overview
Y
ou w
i
ll find further explanations, instruc-
tions and restrictions on the technical speci-
fications as of ››› page 289.
Working in the engine compartment Read the additional information carefully
›› ›

 page 17
Always be aware of the danger of injury and
scalding as well as the risk of accident or fire
when working in the engine compartment
(e.g. when checking and refilling fluids). Al-
ways observe the warnings listed below and
follow all general safety precautions. The en- gine compartment of the vehicle is a poten-
tia
l

ly hazardous area ››› .
WARNING
● Swit c

h the engine off, remove the key from
the ignition and apply the hand brake. If the
vehicle has a manual gearbox, place the lever
in neutral; if it has an automatic gearbox,
place the selector lever in position P. Wait for
the engine to cool down.
● Keep children away from the engine com-
partment
.
● Never spill liquids used for vehicle opera-
tion on the engine comp
artment, as these
may catch fire (e.g. the antifreeze in coolant). 270