Page 141 of 293

Lighting139
Fault in Adaptive forward
lighting system When the system detects a failure in
the Adaptive forward lighting system,
the system moves to a preset position to avoid dazzling of oncoming traffic.
If this is not possible, the affected
headlight will be automatically
switched off. In any case, one
headlight will stay on. A warning is
displayed in the Driver Information Centre.
Hazard warning flashers
Operated with the ¨ button.
In the event of an accident with airbag
deployment the hazard warning
flashers are activated automatically.
Turn and lane-change
signalslever up=right turn signallever down=left turn signal
If the lever is moved past the
resistance point, the turn signal is
switched on constantly. When the
steering wheel moves back, the turn
signal is automatically deactivated.
For three flashes, e.g. when changing lanes, press the lever until resistance
is felt and then release.
When a trailer is connected, turn
signal flashes six times when
pressing the lever until resistance is
felt and then releasing.
Move the lever to the resistance point
and hold for longer indication.
Switch the turn signal off manually by moving the lever to its original
position.
Front fog lights
Operated with the > button.
Page 143 of 293
Lighting141Interior lighting
Instrument panel
illumination control
Brightness of the following lights can
be adjusted when the exterior lights
are on:
■ Instrument panel illumination
■ Info-Display
■ Illuminated switches and operation elements.
Turn thumb wheel A and hold until
the desired brightness is obtained.
On vehicles with light sensor, the
brightness can only be adjusted when
the exterior lights are on and the light sensor detects night conditions.
Interior lights
During entry and exit of the vehicle,
the front and rear courtesy lights
automatically switch on and then off
after a delay.
Notice
In the event of an accident with airbag deployment the courtesy
lights are turned on automatically.
Front courtesy lightOperate rocker switch:w=automatic switching on
and off.press u=on.press v=off.
Rear courtesy lights
Illuminate in conjunction with the front
courtesy light depending on rocker
switch position.
Page 160 of 293

158Driving and operating
■ the brake vacuum is not sufficient
■ the vehicle is driven at least at walking speed
■ the climate control system requests
an engine start
■ the air conditioning is manually switched on
If the bonnet is not fully closed, a
warning message is displayed in the
Driver Information Centre.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during engine restart may be
noticeable.
Parking ■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply parking brake. Apply manual parking brake without
pressing release button. Apply as
firmly as possible on downhill or uphill slopes. Depress the footbrake at the same time to reduce
operating force.
Apply electric parking brake by pulling switch m for approx.
one second. Control indicator m
must illuminate.
■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or
uphill slope, engage first gear or set the selector lever to P before
switching off the ignition. On an
uphill slope, turn the front wheels
away from the kerb.
If the vehicle is on a downhill slope, engage reverse gear or set theselector lever to P before switching
off the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle and activate the anti-theft alarm system.Notice
In the event of an accident with
airbag deployment, the engine is
turned off automatically if the vehicle
comes to a standstill within a certain time.
Page 239 of 293

Vehicle care237
No.Circuit15Engine control module16Starter17Transmission control module18Heated rear window19Front power windows20Rear power windows21Rear electrical centre22Left high beam (Halogen)23Headlamp washer system24Right low beam (Xenon)25Left low beam (Xenon)26Front fog lights27Diesel fuel heating28Stop-start system29Electric parking brake30ABS31Adaptive cruise controlNo.Circuit32Airbag33Adaptive forward lighting, auto‐
matic light control34Exhaust gas recirculation35Outside rear view mirror, rain
sensor36Climate control37Canister vent solenoid38Vacuum pump39Central control module40Windscreen washer, rear
window washer system41Right high beam (Halogen)42Radiator fan43Windscreen wiper44Windscreen wiper45Radiator fan46–No.Circuit47Horn48Radiator fan49Fuel pump50Headlamp levelling, adaptive
forward lighting51Air shutter52Auxiliary heater, diesel engine53Transmission control module,
engine control module54Vacuum pump, instrument
panel cluster, heating ventila‐
tion, air conditioning system
After having changed defective fuses
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Page 240 of 293
238Vehicle careInstrument panel fuse box
In left-hand drive vehicles, the fuse
box is behind the storage
compartment in the instrument panel.
Open the compartment and push it to the left to unlock. Fold the
compartment down and remove it.
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox, then
open the cover and fold it down.
No.Circuit1Cruise control, speed limiter,
adaptive cruise control, steering wheel controls2Exterior lights, body control
module3Exterior lights, body control
module4Infotainment system5Infotainment system, instru‐
ment6Power outlet, cigarette lighter7Power outlet8Left low beam, body control
module9Right low beam, body control
module, airbag module10Door locks, body control module11Interior fan12–
Page 241 of 293
Vehicle care239
No.Circuit13–14Diagnostic connector15Airbag16Power outlet17Air conditioning system18Logistics19Body control module20Body control module21Instrument panel cluster, anti-
theft alarm system22Ignition sensor23Body control module24Body control module25–26–Load compartment fuse
box
The fuse box is on the left side of the
load compartment behind a cover.
Remove the cover.
If equipped with tyre repair kit,
remove the complete box.
Page 286 of 293

284Customer informationVehicle data recording
and privacy
Event data recorders
Data storage modules in the vehicle
A large number of electronic
components of your vehicle contain
data storage modules temporarily or
permanently storing technical data
about the condition of the vehicle,
events and errors. In general, this
technical information documents the
condition of parts, modules, systems
or the environment:
■ Operating conditions of system components (e.g. filling levels)
■ Status messages of the vehicle and
its single components (e.g. number
of wheel revolutions / rotational
speed, deceleration, lateral
acceleration)
■ Dysfunctions and defects in important system components■ Vehicle reactions in particulardriving situations (e.g. inflation of
an airbag, activation of the stability
regulation system)
■ Environmental conditions (e.g. temperature)
These data are exclusively technical
and help identifying and correcting
errors as well as optimizing vehicle
functions.
Motion profiles indicating travelled
routes cannot be created with these
data.
If services are used (e.g. repair
works, service processes, warranty
cases, quality assurance),
employees of the service network
(manufacturer included) are able to
read out this technical information
from the event and error data storage
modules applying special diagnostic
devices. If required, you will receive
further information at these
workshops. After an error has been
corrected, the data are deleted from
the error storage module or they are
constantly overwritten.When using the vehicle, situations
may occur in which these technical
data related to other information
(accident report, damages on the
vehicle, witness statements etc.) may be associated with a specific person -possibly, with the assistance of an
expert.
Additional functions contractually
agreed upon with the client (e.g.
vehicle location in emergency cases)
allow the transmission of particular vehicle data from the vehicle.
Page 288 of 293

286IndexAAccessories and vehicle modifications .......................... 217
Active Emergency Braking .........187
Active head restraints ...................36
Adaptive cruise control .......113, 176
Adaptive forward lighting ..........
................................ 113, 135, 228
AdBlue ........................ 111, 160, 264
Adjustable air vents ...................150
Advanced parking assist ............191
Airbag and belt tensioners .........108
Airbag deactivation ..............55, 108
Airbag system .............................. 53
Air conditioning regular operation ................................ 152
Air conditioning system .............. 145
Air intake .................................... 151
Air vents...................................... 150
Antilock brake system ................ 167
Antilock brake system (ABS) .....110
Anti-theft alarm system ................25
Anti-theft locking system .............. 25
Appearance care ........................259
Armrest ......................................... 41
Armrest storage ........................... 65
Ashtrays ..................................... 100
Automatic anti-dazzle ..................29
Automatic light control ...............133Automatic locking ........................23
Automatic transmission .............163
Auxiliary heater ........................... 150
B
Battery discharge protection ......143
Battery voltage ........................... 123
Bicycle rack .................................. 67
BlueInjection ............................... 160
Bonnet ....................................... 219
Brake and clutch fluid .................264
Brake and clutch system ...........109
Brake assist ............................... 169
Brake fluid .................................. 222
Brakes ............................... 167, 222
Breakdown.................................. 257
Bulb replacement ....................... 226
C
Capacities .................................. 278
Cargo management system ........85
Car Pass ...................................... 19
Catalytic converter .....................160
Central locking system ................21
Centre console lighting ..............142
Centre console storage ...............66
Changing tyre and wheel size ...246
Charging system ........................ 108
Child locks ................................... 23