Page 84 of 263
82Instruments and controlsPull lever. Washer fluid is sprayed
onto the windscreen and the wiper wipes a few times.
If the headlights are on, washer fluid
is also sprayed onto the headlights,
provided that the lever is pulled
sufficiently long. Afterwards, the
headlight washer system is
inoperable for 5 wash cycles or until
engine or headlights have been
switched off and on again.
Outside temperature A drop in temperature is indicatedimmediately and a rise in temperature
after a time delay.The illustration shows Graphic-Info-
Display
The illustration shows Colour-Info-
Display
If outside temperature drops to 3 °C,
a warning message is displayed in the Driver Information Centre.9 Warning
The road surface may already be
icy even though the display
indicates a few degrees above
0 °C.
Clock
Date and time are shown in the
Info-Display.
Time and date settings
CD 400plus/CD 400/CD 300
Press CONFIG . The menu Settings is
displayed.
Select Time Date .
Page 87 of 263
Instruments and controls85AshtraysCaution
To be used only for ash and not forcombustible rubbish.
The portable ashtray can be placed in
the cupholders.
Warning lights, gauges
and indicators
Instrument cluster
In some versions, the needles of the
instruments briefly rotate to the end
position when the ignition is switched on.
Speedometer
Indicates vehicle speed.
Odometer
The bottom line displays the recorded distance in km.
Page 90 of 263

88Instruments and controlsThe remaining engine oil life duration
is displayed in percent in the Driver
Information Centre.
Reset Press SET/CLR on turn signal lever
for several seconds to reset. The
remaining engine oil life duration
page must be active. Switch on
ignition, but not the engine.
The system must be reset every time
the engine oil is changed, to ensure
proper functionality. Seek the
assistance of a workshop.
Next service When the system has calculated that
engine oil life has diminished, a
warning message appears in the
Driver Information Centre. Have
engine oil and filter changed by a
workshop within one week or
500 km (whichever occurs first).
Driver Information Centre 3 95.
Service information 3 233.Control indicators
The control indicators described are
not present in all vehicles. The
description applies to all instrument
versions. Depending on the
equipment, the position of the control indicators may vary. When the
ignition is switched on, most control
indicators will illuminate briefly as a
functionality test.
The control indicator colours mean:red:danger, important reminderyellow:warning, information, faultgreen:confirmation of activationblue:confirmation of activationwhite:confirmation of activation
Control indicators in the
instrument cluster
Control indicators in the centre
console
Overview
OTurn signal 3 89XSeat belt reminder 3 89vAirbag and belt tensioners and
roll bars 3 90VAirbag deactivation 3 90pCharging system 3 90ZMalfunction indicator light
3 90
Page 91 of 263

Instruments and controls89RBrake and clutch system 3 91-Operate pedal 3 91mElectric parking brake 3 91jElectric parking brake fault
3 91uAntilock brake system (ABS)
3 92RUpshift 3 92cPower steering 3 92)Lane departure warning 3 92aElectronic Stability Control off
3 92bElectronic Stability Control and
Traction Control system 3 92kTraction Control system off
3 93!Preheating 3 93%Diesel particle filter 3 93YAdBlue 3 93wTyre pressure monitoring
system 3 93IEngine oil pressure 3 93iLow fuel 3 94dImmobiliser 3 948Exterior light 3 94CHigh beam 3 94lHigh beam assist 3 94fAdaptive forward lighting 3 94>Fog light 3 95rRear fog light 3 95mCruise control 3 95AVehicle detected ahead 3 95hDoor open 3 95
Turn signal
O illuminates or flashes green.
Illuminates briefly
The parking lights are switched on.
Flashes
A turn signal or the hazard warning flashers are activated.
Rapid flashing: failure of a turn signal light or associated fuse, failure of turn
signal light on trailer.
Bulb replacement 3 196, Fuses
3 204.
Turn signals 3 121.
Seat belt reminder
Seat belt reminder on front seats X for driver's seat illuminates or
flashes red.
k for front passenger seat illuminates
or flashes red, when seat is occupied.
Illuminates
After the ignition has been switched
on until the seat belt has been
fastened.
Flashes
After having started the engine for a
maximum of 100 seconds until the
seat belt has been fastened.
Page 92 of 263

90Instruments and controlsAirbag, belt tensioners androll bars
v illuminates red.
When the ignition is switched on, the
control indicator illuminates for
approx. 4 seconds. If it does not
illuminate, does not extinguish after
4 seconds or illuminates whilst
driving, there is a fault in the airbag
system, in the belt tensioner or the
deployable roll bars. The airbags, belt pretensioners and roll bars may fail to
trigger in the event of an accident.
Deployment of the belt tensioners,
airbags or deployable roll bars is indicated by continuous illumination
of v.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Airbag system, belt tensioners 3 59,
3 56.
Rollover protection system 3 46.
Airbag deactivation
V illuminates yellow.
The front passenger airbag is
activated.
* illuminates yellow.
The front passenger airbag is
deactivated 3 63.9 Danger
Risk of fatal injury for a child using
a child restraint system together
with activated front passenger
airbag.
Risk of fatal injury for an adult
person with deactivated front
passenger airbag.
Charging system
p illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Stop, switch off engine. Vehicle
battery is not charging. Engine
cooling may be interrupted. The
brake servo unit may cease to be
effective. Seek the assistance of a
workshop.
Malfunction indicator light Z illuminates or flashes yellow.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Fault in the emission control system. The permitted emission limits may be exceeded. Seek the assistance of a
workshop immediately.
Page 96 of 263

94Instruments and controlsIlluminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
1. Depress clutch.
2. Select neutral gear, set selector lever to N.
3. Move out of the flow of traffic as quickly as possible without
impeding other vehicles.
4. Switch off ignition.
9 Warning
When the engine is off,
considerably more force is needed
to brake and steer. During an
Autostop the brake servo unit will still be operational.
Do not remove key until vehicle is
stationary, otherwise the steeringwheel lock could engage
unexpectedly.
Check oil level before seeking the
assistance of a workshop 3 191.
Low fuel
i illuminates or flashes yellow.
Illuminates
Level in fuel tank is too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 144.
Bleeding the diesel fuel system
3 195.
Immobiliser d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Exterior light
8 illuminates green.
The exterior lights are on 3 113.
High beam
C illuminates blue.
Illuminates when high beam is on or
during headlight flash 3 115 , or when
high beam is on with high beam assist
or intelligent light range 3 117.
High beam assist
l illuminates green.
The high beam assist or intelligent light range is activated 3 115,
3 117.
Adaptive forward lighting f illuminates or flashes yellow.
Illuminates
Fault in system.
Seek the assistance of a workshop.
Page 105 of 263

Instruments and controls103● If a warning message appears inthe Driver Information Centre.
● If the parking assist detects an object.
● If unintended lane change occurs.
● If the diesel particle filter has reached the maximum filling
level.
When the vehicle is parked and/or the driver's door is opened
● With exterior lights on.
During an Autostop ● If the driver's door is opened.
Battery voltage When the vehicle battery voltage is
running low, a warning message will
appear in the Driver Information
Centre.1. Switch off immediately any electrical consumers which are
not required for a safe ride, e.g.
seat heating, heated rear window
or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message will disappear
after the engine has been started
twice consecutively without a voltage
drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings
in the Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 23.
Depending on vehicle equipment and
country-specific regulations, some of the functions described below may
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings in the
Graphic-Info-Display
CD 400plus/CD 400/CD 300
Page 107 of 263

Instruments and controls105Vehicle settings
●Climate and air quality
Auto fan speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Climate control mode : Controls
the state of the cooling
compressor when the vehicle is
started. Last setting
(recommended) or at vehicle
start is either always ON or
always OFF.
Auto rear demist : Activates
heated rear window
automatically.
● Comfort settings
Chime volume : Changes the
volume of warning chimes.
Personalization by driver :
Activates or deactivates the
personalisation function.
● Park assist / Collision detection
Park assist : Activates or
deactivates the ultrasonic
sensors. Activation is selectable
with or without attached trailer
coupling.
Side blind zone alert : Changes
the settings for the side blind spot alert system.
● Exterior ambient lighting
Duration upon exit of vehicle :
Activates or deactivates and
changes the duration of exit
lighting.
Exterior lighting by unlocking :
Activates or deactivates the
welcome lighting.
● Power door locks
Auto door lock : Activates or
deactivates the automatic door
unlocking function after switching
off ignition. Activates or
deactivates the automatic door
locking function after driving-off.
Stop door lock if door open :
Activates or deactivates the
automatic door locking function
while a door is open.
Delayed door lock : Activates or
deactivates the delayed door locking function.
● Remote locking, unlocking,
starting
Remote unlock feedback :
Activates or deactivates the
hazard warning flasher feedback
whilst unlocking.