Seat belts
Head-on collisions and the laws of
physics Fig. 77
A driver not wearing a seat belt is
thr own f
orward violently. Fig. 78
The unbelted passenger in the rear
seat is thr own f
orward violently, hitting the driv-
er wearing a seat belt The effects of the laws of physics in the case
of a head-on collision ar
e easy t
o e
xplain: the
moment a vehicle starts moving, a type of en- ergy called “kinetic energy” starts acting on
both the vehicle and its passengers.
The amount of “kinetic ener
gy” depends on
the speed of the vehicle and on the weight of
the vehicle and of its passengers. The higher
the speed and the greater the weight, the
more energy there is to be “absorbed” in an
accident.
The most significant factor, however, is the
speed of the vehicle. If the speed doubles
from 25 km/h (15 mph) to 50 km/h (30 mph),
for example, the corresponding kinetic ener-
gy is multiplied by four.
Because the vehicle occupants in our exam-
ple are not restrained by seat belts, in the
event of crashing against a wall, all of the oc-
cupants
Fuses and bulbs
No. Consumer
24 Air conditioning fan, heating, control unit for
air conditioning, heating
26 Front seat heating switch. 27 Rear window wiper
29 Airbag
30 Electric windows, reversing light switch, air
conditioning control unit, P
ark Assist contr
ol
unit, exterior mirror, power supply for middle
button bar, power supply for the side button
bar, interior mirror
31 Fuel pump, radiator fan control unit, cruise
contr
ol, r
elay coil for the windscreen and rear
window washer system, switch for the lights
32 Diagnostics socket, headlight range regula-
tor, contr
ol lever under the steering wheel,
ambient lighting regulator
33 Ignition relay coil, clutch pedal switch
34 Heatable washer jets of windscreen washer
36 USB charging socket 37 Radar
39 Additional electric heating 41 Rear window heater
42 Electric windows - passenger
43 Towing bracket - Connector contact No. Consumer
44 12 V connection in the interior, 12 V connection
in the boot
45 Rear right window
46 Windshield and front window washing sys-
tem, contr
ol l
ever under the steering wheel
47 Towing bracket - Connector contact
48 Towing bracket - Right hand light 49 Fuel pump control unit
50 Radio 51 Heat for exterior mirrors
52 Keyless Access
53 Steering lock (Keyless Access)
54 ABS/ESC control unit
56 Diagnosis
59 Full LED Fuses in the engine compartment
Fig. 87
In the engine compartment: lid of the
fuse bo x - Variant 1
Driving
With the help of this system, the ABS is activa-
t ed mor
e quickly and mor
e efficiently.
The brake assist function is deactivated auto-
matically when the brake pedal is released.
Hill hold control (HHC)*
The HHC system makes it easier to start the
vehicle on hills. The system maintains the
brake pressure created by pressing down on
the brake pedal for 2 seconds after it has
been released. Your foot can be removed
from the brake pedal and you can use the
accelerator pedal and move away on a hill
without having to use the handbrake. The
brake pressure drops as the accelerator ped-
al is pressed. If the vehicle cannot be started,
it will start to move backwards after 2 sec-
onds.
The HHC is activated on gradients of over 5%,
if the driver door is closed. It only works for
starting on hills, moving both forward and in
reverse. It is not activated during start-up
down hill.
Control lamp
If the control lamp ! flashes, the ESC is working.
If the ! warning lamp illuminates on ignition,
the ESC system may have switched off due to
technical reasons. Turn off the ignition and
turn it on again. Upon switching on the igni-
tion again, if the warning lamp has switched off, this means the ESC is functioning correct-
ly again.
If the !
warning lamp is illuminat
ed there is a
fault in the ESC.
The informative display indicates:
F a u l t : e l e c t r o n i c s t a b i l i t y c o n -
t r o l ( E S C )
or F a u l t : t r a c t i o n c o n t r o l s y s t e m
( A S R )
Go to a technical service. Note
If the battery is disconnected and connec-
ted again, the yell o
w warning lamp !
lights up when the ignition is switched on.
This warning lamp must switch off after
covering a short distance. Anti-lock brake system (ABS)
The ABS system prevents the wheels locking
during br
aking. This helps the driv
er k
eep
control of the vehicle.
The driver is made aware of ABS assistance
by the pulsating of the brake pedal and a
characteristic noise.
Keep the brake pedal pressed down while the
ABS is working. The ABS will switch off when the brake pedal is released. Never brake in-
termittently whil
e the ABS is working!
Control lamp
If the warning lamp is illuminated, there is a fault in the ABS.
The informative display indicates:
A B S f a u l t
The brake system alone is operational in the
vehicle, without ABS.
Go to a technical service. WARNING
Checking and refilling levels
For the sake of the environment
A flat battery is particularly harmful waste
for the envir onment. It must ther
efore be
disposed of according to current local law. Note
Replace a battery once it is older than 5
years. Warning lamp
It lights up
Alternator fault. The control lamp lights up when the ignition is
s
wit
ched on. It shoul
d go out when the engine
has started running.
If the control lamp lights up while driving, the alternator is no longer charging the bat-
tery. You should immediately drive to the
nearest specialised workshop.
You should avoid using electrical equipment
that is not absolutely necessary because this
will drain the battery. CAUTION
Additionally, if the warning lamp lights up while driving, the w arning l
amp also
lights up (cooling system fault). Stop the vehicle and switch off the engine
Maintenance
Decoration slides Problem Solution
Dirt Soft sponge with neutral soap
solutiona) a)
Neutral soap solution: two tablespoons maximum in
1 litre of w at
er
Interior cleaning Windows
Problem Solution
Dirt Apply windscreen cleaner and
then dry with a clothCovers / Trims
Problem Solution
Dirt Neutral soap solutiona)a)
Neutral soap solution: two tablespoons maximum in
1 litr e of w
at
er
Plastic parts Problem Solution
Dirt Damp cloth
Encrusted dirt Neutral soap solution a)
, if pos-
sible solv
ent-free plastic clean-
er a)
Neutral soap solution: two tablespoons maximum in
1 litr e of w
at
er Displays/instrument panel Problem Solution
Dirt Soft cloth with a liquid crystal
display cleaner Control panels
Problem Solution
Dirt Soft brush, then soft cloth with
neutral soap solutiona) a)
Neutral soap solution: two tablespoons maximum in
1 litre of w at
er
Seat belts Problem Solution
Dirt Neutral soap solutiona)
, al-
l o
wed to dry before retracting a)
Neutral soap solution: two tablespoons maximum in
1 litr e of w
at
er
Fabrics, artificial, Alcantara leather Problem Solution
Dirt particles ad-
hered t o the sur
-
face Vacuum cleaner
Water-based dirt,
e.g. coff ee
, tea,
blood etc. Absorbent cloth and neutral
soap solution
a) Problem Solution
Grease-based
dirt, e.g. oil , mak
e-
up, etc. Apply a neutral soap solution
a)
.
Absorb the dissolved gr ease
and paint particles drying with
an absorbent cloth, in case you
must treat it with water after-
wards
Special dirt, e.g.
pens, nail polish,
dispersion paint,
shoe cream et c.Special st
ain remove: dry with
an absorbent cloth, if applica-
ble
, apply neutral soap solution
afterwards a) a)
Neutral soap solution: two tablespoons maximum in
1 litr e of w
at
er
Natural leather Problem Solution
Recent dirt Cotton cloth with neutral soap solutiona)
Water-based dirt,
e.g. coffee
, tea,
blood etc. Recent stains: absorbent cloth
Dry stains: leather cl
eaner
Grease-based
dirt, e.g. oil , mak
e-
up, etc. Recent stains: absorbent cloth
and leather cleaner
Dry st
ains: grease dissolving
spray
Special dirt, e.g.
pens, nail polish,
dispersion paint,
shoe cream et c.St
ain remover suitable for
leather 268
Index
Index
A ABS contr ol l
amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
202
see also Anti-lock brake system . . . . . . 201, 202
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138, 240
Adjust CAR menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 24
Adjusting front head restraints . . . . . . . . . . . . . . . . . . . . . . . . 61
seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . 58
Adjusting the head restraints front head restraints . . . . . . . . . . . . . . . . . . . . . . . 132
Adjustment front head restraints . . . . . . . . . . . . . . . . . . . . . . . 132
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 121
rear head restraints . . . . . . . . . . . . . . . . . . . . . . . . 62
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . 68
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16, 68 activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 70
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
deactivation of front airbag . . . . . . . . . . . . . 72, 73
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 69
front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16, 70
functioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 70
head-protection airbags . . . . . . . . . . . . . . . . 18, 71
side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18, 71
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 38 air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 147
economic use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 147 introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Al
arm system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Alcantara leather: cleaning . . . . . . . . . . . . . . . . . 268
Alternator warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 127
Anchoring the front tow line. . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Android Auto
Index
Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 37 adjusting the t emper
at
ure . . . . . . . . . . . . . . . . . 152
air recirculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
automatic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
blower selection . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
windscreen defrost . . . . . . . . . . . . . . . . . . . . . . . . 153
Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 108
Closing central locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
vehicle with Keyless Access . . . . . . . . . . . . . . . . 113
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
119
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 140
Coming Home and Leaving Home . . . . . . . . . . . 124
Coming Home and Leaving Home Function . . 124
Communication between the Infotainment system and mobile devices . . . . . . . . . . . . . . . . 163
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
135
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 Full Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 163
Control and warning lamps . . . . . . . . . . . . . . 34, 103 ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 202
ABS anti-blocking system . . . . . . . . . . . . . . . . . 201
airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 73
alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201, 202
audible warning signal . . . . . . . . . . . . . . . . . . . . 103
blocking of the steering column . . . . . . . . . . . 209
brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 200
break recommendation . . . . . . . . . . . . . . . . . . . 231
coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 248
coolant temperature . . . . . . . . . . . . . . . . . . . . . . . 101
cruise control system (CCS) . . . . . . . . . . . . . . . 217
deactivating the airbag . . . . . . . . . . . . . . . . . . . . . 17
depress the brake . . . . . . . . . . . . . . . . . . . . . . . . . 219
diesel preheating system . . . . . . . . . . . . . . . . . . 213 disabling airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
72
EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 201
emission control . . . . . . . . . . . . . . . . . . . . . . . . . . .
213
engine management . . . . . . . . . . . . . . . . . . . . . . 213
engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 247
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 201
fuel level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
gearbox malfunctions . . . . . . . . . . . . . . . . . . . . . 207
handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
instrument panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 120
particulate filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
power steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
seat belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 63
Start-Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
tyre pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 260
windscreen washer fluid level . . . . . . . . . . . . . 128
Controls and displays general instrument panel . . . . . . . . . . . . . . . . . . . 97
Controls for the windows . . . . . . . . . . . . . . . . . 14, 119
Controls on the steering wheel without voice control . . . . . . . . . . . . . . . . . . . . . . 106
with voice control . . . . . . . . . . . . . . . . . . . . . . . . . 104
Coolant level control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Coolant temperature control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Cooling coolant temperature gauge . . . . . . . . . . . . . . . 101
Cooling system checking coolant . . . . . . . . . . . . . . . . . . . . . . . . . 248
topping up coolant . . . . . . . . . . . . . . . . . . . . . . . 248
Correct position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
58 Correct sitting position
driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 58
fr
ont passenger . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
rear seat passengers . . . . . . . . . . . . . . . . . . . . . . 60
Cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34, 217 control and warning lamps . . . . . . . . . . . . . . . . 217
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 217
temporary deactivation . . . . . . . . . . . . . . . . . . . 218
turning off the cruise control system . . . . . . . 218
D Damage to the vehicle . . . . . . . . . . . . . . . . . . . . . . 215
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 34
Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Deactivating the front passenger front airbag . 17
Deactivation of front airbag . . . . . . . . . . . . . . . 72, 73
Defective bulbs changing bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Defrosting rear window . . . . . . . . . . . . . . . . . . . . . . 127
Diesel engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 247
particulate filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
196
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 244
Diesel fuel particulate filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 281
Direction of rotation tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . 51
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
98, 99
Disposal belt tensioners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Door cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 11
Door handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 285