
Fuses and bulbsNo.Consumers/Amps
23Electric sunroof30
24Right lights40
25Left door30
26Heated seats30
27Interior light30
28Trailer25
32Control unit for parking aid, front
camera and radar7.5/10
33Airbag5
34Reverse switch, climate sensor,
electrochromic mirror, rear power
sockets (USB)7.5
35Diagnosis, headlight control unit,
headlight adjuster10
36Right LED headlight7.5
37Left LED headlight7.5
38Trailer25
39Right door30
4012V socket20
42Central locking40
43SEAT Sound, beats sound CAN
and MOST.30
44Trailer15
No.Consumers/Amps
45Electric driver's seat15
47Rear window wiper15
49Starter motor; clutch sensor5
50Electric rear lid40
52Driving mode.15
53Heated rear window30
Fuse arrangement in engine compartment
No.Consumers/Amps
1ESP control unit25
2ESP control unit40
3Engine control unit (diesel/pet-
rol)30/15
4Engine sensors5/10
5Engine sensors7.5
6Brake light sensor5
7Engine power supply10
8Lambda probe10/15
9Engine5/10/20
10Fuel pump control unit15/20
11PTC40
12PTC40
No.Consumers/Amps
13Automatic gearbox control unit15/30
14Heated windscreen40
15Horn15
16Petrol pump5/15/20
17Engine control unit7.5
18Terminal 30 (positive reference)5
19Front windscreen washer30
20Alarm horn10
22Engine control unit5
23Starter motor30
24PTC40
31Pressure pump15
33Gearbox pump30
37Parking heating20
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. » 105
Technical data
Advice
Operation
Emergencies
Safety

Controls and displays
Operation
C ontr
o
ls and displays
General instrument panel Door release lever
Centr
al
locking switch . . . . . . . . . . . .128
Control for the electric adjustment
of the ext
erior mirrors . . . . . . . . . . . . . 155
Air outlets . . . . . . . . . . . . . . . . . . . . . . . . 174
Control lever for:
– Turn s ign
als and main beam
headlights . . . . . . . . . . . . . . . . . . . . . 145
– Lane Ass i
st . . . . . . . . . . . . . . . . . . . . . 230
– Main beam a
ssist . . . . . . . . . . . . . . . 146
– Cruise c
ontrol system (CCS) . . . . .212
Depending on equipment fitted:
– Lev er f
or cruise control . . . . . . . . . .212
Steering wheel with horn and – Driver airbag . . . . . . . . . . . . . . . . . . . 21
– On-boar d c
omputer controls . . . .36
– Contro
ls for radio, telephone,
navigation and speech dialogue
system ›››
Booklet Radio
– Paddle levers for tiptronic gear-
shift (automatic gearbox) . . . . . . .195
Instrument panel . . . . . . . . . . . . . . . . . 114
1 2
3
4
5
6
7
8 Control lever for:
– Wind
s
creen wipers and washer . .153
– Wipe and wa
sh system . . . . . . . . . . 153
– On-board c
omputer . . . . . . . . . . . . . 36
Depending on equipment fitted: ra-
dio or disp
lay for Easy Connect
(navigation, radio, TV/video) . . . . . .120
Depending on the equipment, but-
tons
for:
– Start-Stop system . . . . . . . . . . . . . . . 208
– Park a
ssist system . . . . . . . . . . . . . . 262
– Hazard w
arning lights . . . . . . . . . .149
– Tyr
e pressure switch . . . . . . . . . . . .313
– Airbag off di
splay . . . . . . . . . . . . . . . 88
Depending on the equipment,
glov e c
ompartment with: . . . . . . . . .161
– CD pl a
yer* and/or SD card*
››› Booklet Radio
Front passenger airbag . . . . . . . . . . .21
Front passenger airbag switch . . . .88
Passenger seat heating control . . . .158
Depending on the equipment, con-
tro l
s for:
– Heating and ventilation system or
manual air conditioner . . . . . . . . . .54, 53
– Autom atic
air conditioner . . . . . . .51
Depending on the equipment:
– USB/A UX-IN inp
ut . . . . . . . . . . . . . . 123
9
10
11
12
13
14
15
16
17 –
Light er/po
w
er socket . . . . . . . . . . . 162
– Connectivity
Box/Wireless Charg-
er* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
– Storag
e compartment
Gear lever for: – Manual gearbox . . . . . . . . . . . . . . . . 192
– Automatic
gearbox . . . . . . . . . . . . . 193
Rotating control(Driving Experience
button) f
or driving modes . . . . . . . . .242
Auto Hold switch . . . . . . . . . . . . . . . . . 211
Electronic parking brake switch . . .186
Starter button (Keyless Access lock-
ing and ignition sys
tem) . . . . . . . . . . 183
Driver's seat heating control . . . . . .158
Ignition lock (vehicles without Key-
les
s Access) . . . . . . . . . . . . . . . . . . . . . . 181
Steering column adjustment lev-
er . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Knee airbag . . . . . . . . . . . . . . . . . . . . . . 23
Bonnet lock release . . . . . . . . . . . . . . .299
Headlight range control . . . . . . . . . . .151
Headlight switch . . . . . . . . . . . . . . . . . 144
Electric windows . . . . . . . . . . . . . . . . . 139 Note
● Some of the equipment li
sted in this sec-
tion is only fitted on certain models or are op-
tional extras. » 18
19
20
21
22
23
24
25
26
27
28
29
30
113
Technical data
Advice
Operation
Emergencies
Safety

Operation
● Turn the kno
b t
o position L1)
.
● Adjust the left-hand exterior mirror. The
right ext
erior mirror will be adjusted at the
same time (synchronised).
● If necessary the right exterior mirror adjust-
ment ma
y need correcting. turn the control to
position R 1)
.
● In the Easy Connect system the exterior mir-
rors
can be adjusted using the button
and the S
ET
TINGS function button.
F o
l
d in the exterior mirrors after parking
(convenience function)*
The Easy Connect system, the button and
the f u
nction b
uttons SETTINGS and
Mirr or
s
and windscreen wipers can be used to
h av
e the e
xterior mirrors fold in when the ve-
hicle is parked ››› page 120.
When the vehicle is locked with the remote
control, by pressing for more than approxi-
mately 1 second the exterior mirrors are fol-
ded in automatically. When the vehicle is
opened with the remote control, the exterior
mirrors are deployed automatically. WARNING
Convex or wide-angle* exterior mirrors give a
lar g
er field of vision. However, they make ob- jects look smaller and further away than they
re
a
lly are. If you use these mirrors to esti-
mate the distance to vehicles behind you
when changing lane, you could misjudge the
distance. Risk of accident! CAUTION
● If one of the mirr
or housings is knocked out
of position (e.g. when parking), the mirrors
must first be fully retracted with the electric
control. Do not readjust the mirror housing by
hand, as this will interfere with the mirror ad-
juster function.
● Before washing the vehicle in an automatic
car wa
sh, please make sure to retract the ex-
terior mirrors to prevent them from being
damaged. Electrically retractable exterior
mirrors must not be folded in or out by hand.
Always use the electrical power control. Note
If the electrical adjustment should fail to op-
erat e, both of
the mirrors can be adjusted by
hand by lightly pressing the edge of the mir-
ror glass. Seats and head restraints
Adju
s
tin
g the seats and headr-
ests
Manual adjustment of the seats Read the additional information carefully
›› ›
page 18 WARNING
The safe driving chapter contains important
inform ation, tip
s, suggestions and warnings
that you should read and observe for your
own safety and the safety of your passengers
››› page 73. WARNING
● Adjus t
the front seats only when the vehi-
cle is stationary. Failure to follow this instruc-
tion could result in an accident.
● Be careful when adjusting the seat height.
Carel
ess or uncontrolled adjustment can
cause injuries.
● The front seat backrests must not be re-
clined for driv
ing. Otherwise, seat belts and
the airbag system might not protect as they
should, with the subsequent danger of injury. 1)
Regulation in right-hand drive vehicles is symmet-
rical .
156

Operation
WARNING
● Ple a
se make sure that any items of clothing
hanging from the coat hooks do not obstruct
your view to the rear.
● The coat hooks should only be used for
lightweight c
lothing. Do not leave any heavy
or sharp objects in the pockets.
● Do not use clothes hangers to hang up the
clothing, a
s this could interfere with the func-
tion of the head-protection airbags. Power sockets
Fig. 157
Centre console: 12 volt socket Fig. 158
Centre console, rear section: USB
pow er soc
kets. ●
Remove the cap located on the centre con-
so l
e of
the socket ››› Fig. 157.
● Insert the plug of the electrical appliance
into the pow
er socket.
Electrical equipment can be connected to the
12 volt power socket. The appliances connec-
ted to each power socket must not exceed a
power rating of 120 Watt.
USB power sockets
Depending on the equipment and the coun-
try, the vehicle may also have USB connec-
tions exclusively for charging or as a power
socket.
These USB ports are located at the rear of the
console, between the front seats ››› Fig. 158.
These connectors can work at a maximum
power of up to 10.5 W per port.
They are not intended for file playback. WARNING
The power socket works only when the igni-
tion is on. Impr
oper use may cause serious
injury or even fire. Children should therefore
not be left in the vehicle unattended if the
button is also left behind. Otherwise there is
a possibility that they may be injured. CAUTION
Always use the correct type of plugs to avoid
dam agin
g the sockets. Note
● The use of el
ectrical appliances with the
engine switched off will cause a battery dis-
charge.
● Should the connected appliance overheat,
immediately
switch it off and disconnect it
from the socket.
● Before switching the ignition on or off, un-
plug the app
liances from the USB ports to
protect them from any damage caused by
fluctuations in voltage. Storing objects
Lo
a
ding the luggage compartment All luggage and other loose objects must be
s
af
ely
secured in the luggage compartment.
Unsecured objects which shift back and forth
162

Driving
●
Never u se s
prays to cold start the engine. CAUTION
● The s tar
ter motor or the engine may be
damaged if you try to start the engine while
driving or if you restart it immediately after
switching it off.
● If the engine is cold, avoid high engine
speeds, p
ushing the engine too hard and rap-
id acceleration.
● Do not start the engine by pushing the ve-
hicle or t
owing it. Unburnt fuel could enter
the catalytic converter and damage it. Note
● Do not w ait
until the engine warms up with
the vehicle stationary; if you have good visi-
bility through the windows, start driving im-
mediately. This helps the engine reach oper-
ating temperature faster and reduces emis-
sions.
● Electrical components with a high power
cons
umption are switched off temporarily
when the engine starts.
● When starting with a cold engine, noise
level
s may briefly increase. This is quite nor-
mal, and no cause for concern.
● When the outside temperature is below
+5°C (+41°F), if the en
gine is diesel, some
smoke may appear under the vehicle when
the fuel-operated auxiliary heater is on. Stopping the engine
3 Valid for vehicles: with Keyless Access
StepSwitch off the engine with the starter
button
››› page 183.
1.Stop the vehicle completely ››› .
2.Press and hold the brake pedal until the step
4 is performed.
3.If you are driving an automatic vehicle, place
the selector lever in position P.
4.Connect the electronic parking brake
››› page 186.
5.
Briefly press the start-up button ››› Fig. 178.
The START ENGINE STOP button blinks again. If
the engine fails to switch off, perform an
emergency disconnect ››› page 183.
6.If the vehicle is equipped with a manual
gearbox, put it into 1st or reverse. WARNING
Never switch off the engine while the vehicle
is mo
ving. This could cause loss of control of
the vehicle, accidents and serious injury.
● The airbags and belt tensioners do not
work when the ignition i
s switched off.
● The brake servo does not work with the en-
gine off. Ther
efore, you need to press the
break pedal harder to brake the vehicle. ●
Po w
er steering does not work when the en-
gine is not running. You need more strength
to steer when the engine is switched off.
● If the ignition is switched off, the steering
column c
ould be locked, making it impossible
to control the vehicle. CAUTION
If the engine is made to work hard for a long
time, it ma
y overheat after being switched
off. To prevent damage to the engine before
switching it off, leave it idle for approx. 2 mi-
nutes in neutral. Note
After switching off the engine, the cooling fan
ma y
continue to operate in the engine com-
partment for a few more minutes, even with
the ignition off. The radiator fan is automati-
cally switched off. “My Beat” Function
For vehicles with a convenience key there is
the “M
y
B
eat” function. This feature provides
an additional indication of the vehicle igni-
tion system.
When accessing the vehicle, e.g. by opening
the doors with the remote control, the START ENGINE STOP button flashes, calling at-
t ention t
o the r
elevant starter system button. »
185
Technical data
Advice
Operation
Emergencies
Safety

Operation
the other driven wheel. This function is active
up t o ap
pr
oximately 100 km/h (62 mph).
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automati-
cally if subjected to excessive loads. The ve-
hicle can still be driven. The EDL will switch
on again automatically when the brake has
cooled down.
Tractor-trailer sway mitigation*
If the vehicle is pulling a trailer, it will control
the following: Tractor-trailers tend to sway.
When the swaying of the trailer is felt by the
vehicle and detected by the ESC, it will auto-
matically brake the towing vehicle within the
limits of the system and mitigate the sway.
Tractor-trailer sway mitigation is not available
in all countries.
Electronic torque management (XDS)
When taking a curve, the driveshaft differen-
tial mechanism 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.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque
of that wheel. This means that the driver's
desired trajectory is much more precise.
The XDS system works in combination with
the ESC and is always active, even when ASR
traction control is disconnected, or the ESC in
Sport mode or disconnected.
Multi-collision brake
In an accident, the multi-collision brake can
help the driver by braking to avoid the risk of
skidding during the accident, which could
lead to further collisions.
The multi-collision brake works for front, side
or rear accidents, when the airbag control
unit records its activation level and the acci-
dent takes place at a speed of over 10 km/h
(6 mph). The ESC automatically brakes the
vehicle, as long as the accident has not dam-
aged the ESC, the brake hydraulics or the on-
board network
The following actions control automatic brak-
ing during the accident:
● When the driver presses the accelerator,
the automatic
braking does not take place.
● When the braking pressure through press-
ing the brak
e pedal is greater than the sys- tem’s braking pressure the vehicle will brake
automatic
ally.
● Multi-collision braking will not be available
if ESC
is malfunctioning. WARNING
● The ESC, ABS, ASR, ED S
and the electronic
torque control system cannot exceed the lim-
its imposed by the laws of physics. Always
bear this in mind, especially on wet or slip-
pery roads. If you notice the systems cutting
in, you should reduce your speed immediate-
ly to suit the road and traffic conditions. Do
not be encouraged to take risks by the pres-
ence of more safety systems. If you do, an ac-
cident may occur.
● Please remember that the accident risk al-
way
s increases if you drive fast, especially in
corners or on a slippery road, or if you follow
too close behind the vehicle in front of you.
The ESC, ABS, brake assist, EDS and the elec-
tronic torque control system cannot prevent
accidents: risk of accidents!
● Accelerate with caution on slippery surfa-
ces
(for example, icy or snow-covered). De-
spite the control systems, the driven wheels
could spin, affecting the stability of the vehi-
cle: risk of accident! Note
● The ABS and ASR w i
ll only operate correctly
if the four wheels have identical tyres. Any
differences in the rolling radius of the tyres 190

Driver assistance systems
Read the additional information carefully
› ›
›
page 44
The cruise control system (CCS) is able to
maintain the set speed from 20 km/h (15
mph).
The CSS only reduces vehicle speed by ceas-
ing to accelerate, not by actively braking the
vehicle ››› .
C ontr
o
l lamp
When the warning lamp is lit, cruise con-
trol is active.
Several warning and control lamps light up
for a few seconds when the ignition is switch-
ed on, signalling that the function is being
verified. They will switch off after a few sec-
onds.
Displayed on the CCS screen
Status Fig. 186:
CCS temporarily switched off. The set
speed is displayed in small or darkened
figures.
System error. Contact a specialised work-
shop.
CCS switched on. The speed memory is
empty.
The CCS is switched on. The set speed is
displayed in large figures.
A B
C
D WARNING
Use of the cruise control could cause acci-
dents and sev
ere injuries if it is not possible
to drive at a constant speed maintaining the
safety distance.
● Do not use the cruise control in heavy traf-
fic, if the dis
tance from the vehicle in front is
insufficient, on steep roads, with several
bends or in slippery circumstances (snow,
ice, rain or loose gravel), or on flooded roads.
● Never use the CCS when driving off-road or
on unpav
ed roads.
● Always adapt your speed and the distance
to the v
ehicles ahead in line with visibility,
weather conditions, the condition of the road
and the traffic situation.
● To avoid unexpected operation of the cruise
contro
l system, turn it off every time you fin-
ish using it.
● It is dangerous to use a set speed which is
too high for the pr
evailing road, traffic or
weather conditions.
● When travelling down hills, the CCS cannot
maintain a c
onstant speed. The vehicle tends
to accelerate under its own weight. Select a
lower gear or use the foot brake to slow the
vehicle. WARNING
Observe the safety warnings ›››
in Warning
and contr o
l lamps on page 119. Operating the cruise control system*
Read the additional information carefully
›› ›
page 44
The value indicated in the table in brackets
(in mph, miles per hour) only refers to instru-
ment panels with indications in miles.
Changing gear in CCS mode
The CCS decelerates as soon as the clutch
pedal is pressed, intervening again automati-
cally after a gear is engaged.
Travelling down hills with the CCS
When travelling down hills the CCS cannot
maintain a constant speed. Slow the vehicle
down using the brake pedal and reduce
gears if required.
Automatic off
The cruise control system (CCS) is switched
off automatically or temporarily:
● If the system detects a fault that could af-
fect the w
orking order of the CCS.
● If you press and maintain the accelerator
pedal f
or a certain time, driving faster than
the stored speed.
● If the dynamic driving control systems in-
terv
ene (e.g. ASR or ESC).
● If the airbag is triggered.
213
Technical data
Advice
Operation
Emergencies
Safety

Driver assistance systems
Switch the speed limiter off temporarily by
pr e
s
sing down the accelerator (kick-down)
If the accelerator is pressed right down (kick-
down) and the set speed is exceeded be-
cause driver wishes to do so, the limiter is
temporarily disabled.
To confirm it being switched off an acoustic
signal sound once. While the limiter is off,
the warning and control lamp flashes.
When the accelerator is no longer pressed
down and the speed is reduced below the set
value, the limiter switches on again. The con-
trol lamp will light up and remain lit.
Automatic off
The speed limiter is automatically switched
off:
● If the system detects a fault that could neg-
atively aff
ect the working order of the limiter.
● If the airbag is triggered. CAUTION
For automatic switching off due to system
fai lur
es, for security reasons, the limiter is
only completely switched off when the driver
stops pressing the accelerator at some point
or consciously switches off the system. Emergency brake assist system
(Fr
ont
As
sist)*
Topic introduction Fig. 190
On the instrument panel display:
pr e-w
arnin
g messages. The objective of the emergency brake assist
sy
s
t
em is to prevent head-on collisions
against objects that may be in the vehicle’s
path or minimise the consequences of such
impacts.
Within the limitations imposed by the envi-
ronmental conditions and by the system it-
self, the function acts in staggered fashion,
depending on how critical the situation is. In-
itially it warns the driver, and if the driver’s
reaction does not occur or is insufficient, it
activates an independent emergency brak-
ing. The function is intended to prevent collisions
with park
ed vehicles or vehicles in the same
lane travelling in the same direction, or with
pedestrians crossing the vehicle’s path. It
may fail to activate in other danger situa-
tions.
The Front Assist function is active within a
range of speeds between 4 km/h (2.5 mph)
and 250 km/h (156 mph). Depending on
speed, traffic conditions and driver behav-
iour, some of the sub-functions described be-
low are omitted in order to optimise the sys-
tem’s general behaviour.
The Front Assist is a driving assistance func-
tion that can never replace the driver’s atten-
tion.
Safety distance warning
If the system detects a situation of danger
because the vehicle is too close to the vehi-
cle ahead, it will warn the driver by means of
an indication on the instrument panel display
.
The timing of the warning varies depending
on driver behaviour and the traffic situation.
Advance warning
If the system detects a possible collision with
the vehicle in front, it may alert the driver by
means of an audible warning and an indica-
tion on the instrument panel display
››› Fig. 190. »
217
Technical data
Advice
Operation
Emergencies
Safety