2017 Seat Leon 5D headlights

Checking and refilling levels
CAUTION
● Do not mi x
cleaning products recommen-
ded by SEAT with other products. This could
lead to flocculation and may block the wind-
screen washer jets.
● When topping up service fluids, make abso-
lutely c
ertain that you fill the fluids into the
correct reservoirs. Using the wrong fluids
could cause serious malfunctions and engine
damage!
● Not having windscreen wiper fluid reduces
vis
ibility through the windscreen, and leads
to loss of visibility in headlights in models
with headlight washer. Battery
Gener a
l

informationRead the additional information carefully
› ›
›

 page 61.
The battery is located in the engine compart-
ment and is almost maintenance-free. It is
checked as part of the Inspection Service.
Nevertheless, check the terminals are clean
and have the correct tightening torque, espe-
cially in summer and winter.
Disconnecting the battery
The battery should only be disconnected in
exceptional cases. When the battery is dis- connected, some of the vehicle's functions
are “los

t” (››› table on page 277). These
functions will require resetting after the bat-
tery is reconnected.
Deactivate the anti-theft alarm* before you
disconnect the battery Otherwise the alarm
will be triggered.
FunctionReprogramming
One-touch function of
the electric windows››› page 138, One-touch
opening and closing*.
Remote control key
If the vehicle does not re-
spond to the key, they
should be synchronised
››› page 132.
Digital clock››› page 116.
ESC warning lampAfter driving for a few me-
tres, the warning lamp goes
out again. If the vehicle is not used for long periods
The
v
ehic

le has a system for monitoring the
current consumption when the engine is left
unused for long periods of time ››› page 201.
Some functions, such as the interior lights, or
the remote door opening, may be temporarily
disabled to prevent the battery from running
flat. These functions will come back on as
soon as the ignition is switched on and the
engine started. Winter conditions
During the w

inter, the starting power may be
reduced, and if necessary, the battery should
be charged ››› in Important safety warn-
in g
s

for handling a vehicle battery on
page 278
Important safety warnings for han-
dling a v
ehicle battery All work on batteries requires specialist
kno
wl
edg

e. Please refer to a SEAT Official
Service or a workshop specialising in batter-
ies: risk of burns or exploding battery!
The battery must not be opened. Never try to
change the fluid level of the battery. Other-
wise explosive gas is released from the bat-
tery that could cause an explosion. 
Wear eye protection.

Battery acid is very corrosive and caustic. Wear
protective gloves and eye protection. In the event
of electrolyte splashes, rinse off with plenty of
water.

Fires, sparks, open flames and smoking are pro-
hibited.

The battery should only be charged in a well-ven-
tilated zone. Risk of explosion!

Keep children away from acid and batteries!»
277
Technical data
Advice
Operation
Emergencies
Safety

Index
audible warning signal . . . . . . . . . . . . . . . . . . 119
c rui
se c
ontrol system (CCS) . . . . . . . . . . . . . . . 209
depress the brake . . . . . . . . . . . . . . . . . . . . . . . 210
diesel particulate filter . . . . . . . . . . . . . . . . . . . 203
electromechanical steering . . . . . . . . . . . . . . . 198
emission control . . . . . . . . . . . . . . . . . . . . . . . . 203
engine management . . . . . . . . . . . . . . . . . . . . 203
engine pre-heating/fault system . . . . . . . . . . . 203
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
instrument panel . . . . . . . . . . . . . . . . . . . . . 47, 49
instrument panel display . . . . . . . . . . . . . . . . . . 48
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
seat belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Start-Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
tyre monitoring system . . . . . . . . . . . . . . . . . . 284
Controls and displays general instrument panel . . . . . . . . . . . . . . . . . 113
Controls for the windows . . . . . . . . . . . . . . . 18, 136
Controls on the steering wheel operating the audio, telephone and naviga-tion system . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Convenience closing panoramic sliding sunroof . . . . . . . . . . . . . . . . 139
Convenience opening panoramic sliding sunroof . . . . . . . . . . . . . . . . 139
Coolant checking level . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Cooling coolant temperature gauge . . . . . . . . . . . . . . . 117
Cooling system checking coolant . . . . . . . . . . . . . . . . . . . . . . . 274
topping up coolant . . . . . . . . . . . . . . . . . . . . . . 274
Cornering lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Correct position . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
fr
ont passenger . . . . . . . . . . . . . . . . . . . . . . . . . 76
Correct sitting position rear seat passengers . . . . . . . . . . . . . . . . . . . . . 77
Cruise control . . . . . . . . . . . . . . . . . . . . . . . . 45, 209 operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Cruise control system . . . . . . . . . . . . . . . . . . . . . . 209 warning and indication lamp . . . . . . . . . . . . . . 209
D Dangers in not using the seat belt . . . . . . . . . . . . 82
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Data label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Deactivating the front passenger front airbag . . . 23
Deactivation of front airbag . . . . . . . . . . . . . . . . . . 89
Defective bulbs changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 103
Detachable ball assembling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
checking attachment . . . . . . . . . . . . . . . . . . . . 249
placing in standby position . . . . . . . . . . . . . . . 247
removing . . . . . . . . . . . . . . . . . . . . . . . . . 249, 250
standby position . . . . . . . . . . . . . . . . . . . . . . . . 247
Diesel diesel particulate filter . . . . . . . . . . . . . . . . . . . 203
engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Diesel particulate filter . . . . . . . . . . . . . . . . . . . . 203 malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
Direction of rotation tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114, 115 Display of traffic signs on the instrument panel
activate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
deactivate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Disposal belt tensioners . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Distance control see Adaptive cruise control . . . . . . . . . . . . . . . 214
Door cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Door handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Door lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Door release lever . . . . . . . . . . . . . . . . . . . . . . . . 113
Doors childproof locks . . . . . . . . . . . . . . . . . . . . . . . . 133
opening and closing . . . . . . . . . . . . . . . . . . . . . 15
Downhill speed control . . . . . . . . . . . . . . . . . . . . 196
Downhill speed control function . . . . . . . . . . . . . 196
Drawer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Drink holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Driver see Correct sitting position . . . . . . . . . 75, 76, 77
Driver-side general instrument panel left-hand drive . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
right-hand drive . . . . . . . . . . . . . . . . . . . . . . . . . 10
Driver information system engine oil temperature display . . . . . . . . . . . . . 43
operation through the windscreen wiper lever . 36
Driving driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . 146
economical . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
safe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
with a trailer . . . . . . . . . . . . . . . . . . 251, 253, 254
with trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Driving abroad headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Driving data data summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
317

Index
Environment ec o
logic
al driving . . . . . . . . . . . . . . . . . . . . . . . 200
environmental compatibility . . . . . . . . . . . . . . 199
Environmental tips filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . 265
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 159, 256
ESC electronic stability control . . . . . . . . . . . . . . . . 187
Multi-collision Brake . . . . . . . . . . . . . . . . . . . . 188
Sport Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Ethanol (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Event Data Recorder . . . . . . . . . . . . . . . . . . . . . . . . 94
Exhaust pipe: cleaning . . . . . . . . . . . . . . . . . . . . 261
Extending the luggage compartment . . . . . . . . . . . . . . . . 155
Exterior lighting changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 103
Exterior mirrors adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Exterior rear-view mirrors adjusting the exterior rear-view mirrors . . . . . 151
exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Exterior view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7, 8
External aerial . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
F Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Fatigue detection . . . . . . . . . . . . . . . . . . . . . . . . . 236
Filling the fuel tank . . . . . . . . . . . . . . . . . . . . . . . 264
Filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Fluid level control . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Fog light bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Folding table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 Four-wheel drive . . . . . . . . . . . . . . . . . . . . . . . . . . 204
snow c hains . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 22, 87
Front armrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Front Assist indications on the display . . . . . . . . . . . . . . . . 210
Front passenger front airbag control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Front seat manual adjustment . . . . . . . . . . . . . . . . . . . . . . 19
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
ethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Fuel consumption engine cut-off due to inertia . . . . . . . . . . . . . . 200
why does fuel consumption increase? . . . . . . 203
Fuel tank cap opening and closing . . . . . . . . . . . . . . . . . . . . . 58
Full-LED Headlights . . . . . . . . . . . . . . . . . . . . . . . 103
Function Coming Home . . . . . . . . . . . . . . . . . . . . 143
Function Leaving Home . . . . . . . . . . . . . . . . . . . . 144
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63, 101 fuse box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
identifying blown fuses . . . . . . . . . . . . . . . . . . . 63
identifying by colours . . . . . . . . . . . . . . . . . . . . . 63
preparation before replacing . . . . . . . . . . . . . . . 63
replacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 G
Gear-c
hange indicator . . . . . . . . . . . . . . . . . . . . . . 42
Gearbox DSG see Automatic gearbox . . . . . . . . . . . . . . . . . . . 191
Gearbox lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . 190
manual gear change . . . . . . . . . . . . . . . . . . . . . . 50
Gear engaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Gear recommendation . . . . . . . . . . . . . . . . . . . . . . 42
Gear shift paddles (automatic gearbox) . . . . . . . 193
General instrument panel control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
controls and displays . . . . . . . . . . . . . . . . . . . . 113
engine compartment . . . . . . . . . . . . . . . . . . . . 270
warning lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Glove compartment . . . . . . . . . . . . . . . . . . . . . . . 158
H Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . 185
see also Parking brake . . . . . . . . . . . . . . . . . . . 183
Hazard warning lights . . . . . . . . . . . . . . . . . 31, 145
Head-on collisions and their laws of physics . . . . 82
Head-protection airbags description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
safety instructions . . . . . . . . . . . . . . . . . . . . . . . 88
Headlights changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . 103
driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . 146
headlight washers . . . . . . . . . . . . . . . . . . . . . . 149
Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
front head restraints . . . . . . . . . . . . . . . . . . . . . . 78
rear head restraints . . . . . . . . . . . . . . . . . . . . . . 78 319