Page 95 of 261

Instruments and controls93Flashes
Electric parking brake is not fully applied or released. Switch on
ignition, depress brake pedal and
attempt to reset the system by first
releasing and then applying the
electric parking brake. If m remains
flashing, do not drive and seek the
assistance of a workshop.
Electric parking brake fault j illuminates or flashes yellow.
Illuminates
Electric parking brake is operating
with degraded performance 3 150.
Flashes
Electric parking brake is in service mode. Stop vehicle, apply and
release the electric parking brake to
reset.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Antilock brake system
(ABS)
u illuminates yellow.
Illuminates for a few seconds after the ignition is switched on. The system is
ready for operation when the control
indicator extinguishes.
If the control indicator does not
extinguish after a few seconds, or if it illuminates while driving, there is a
fault in the ABS. The brake system
remains operational but without ABS
regulation.
Antilock brake system 3 149.
Upshift R with the number of a higher gear is
indicated or pops up as a full page in
the Driver Information Centre when
upshifting is recommended for fuel
saving reasons.
Driver Information Centre 3 96.
Power steering
c illuminates yellow.
Illuminates with power steering
reduced
Power steering is reduced due to
overheating of the system. Control
indicator extinguishes when the
system has cooled down.
Stop-start system 3 140.
Illuminates with power steering
disabled
Failure in the power steering system.
Consult a workshop.
Lane departure warning
) illuminates green or flashes yellow.
Illuminates green
System is switched on and ready to
operate.
Page 96 of 261

94Instruments and controlsFlashes yellowSystem recognises an unintended
lane change.
Electronic Stability Control
off
n illuminates yellow.
The system is deactivated.
Electronic Stability Control and Traction Control system
b illuminates or flashes yellow.
Flashes
The system is actively engaged.
Engine output may be reduced and
the vehicle may be braked
automatically to a small degree.
Illuminates
A fault in the system is present. A
warning message appears in the
Driver Information Centre. Continued
driving is possible. The system is notoperational. Driving stability,
however, may deteriorate depending
on road surface conditions.
Have the cause of the fault remedied by a workshop.
Electronic Stability Control (ESC)
3 153, Traction Control system (TC)
3 152.
Traction Control system off
k illuminates yellow.
The system is deactivated.
Exhaust filter % illuminates or flashes yellow.
The exhaust filter requires cleaning.
Continue driving until %
extinguishes. If possible, do not allow engine speed to drop below
2000 rpm.
Illuminates
The exhaust filter is full. Start cleaning
process as soon as possible.Flashes
The maximum filling level of the filter
is reached. Start cleaning process
immediately to avoid damage to the
engine.
Exhaust filter 3 143, Stop-start
system 3 140.
Tyre pressure monitoring system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss. Stop immediately
and check tyre pressure.
Flashes
Fault in system or tyre without
pressure sensor mounted (e.g. spare
wheel). After 60-90 seconds the
control indicator illuminates
continuously. Consult a workshop.
Tyre pressure monitoring system
3 207.
Page 97 of 261

Instruments and controls95Engine oil pressure
I illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates 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.
Keep engine turned off and let the
vehicle be towed to a workshop.
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.
Immobiliser
d flashes yellow.
Fault in the immobiliser system. The
engine cannot be started.
Exterior light 8 illuminates green.
The exterior lights are on 3 114.
High beam
C illuminates blue.
Illuminates when high beam is on or
during headlight flash 3 116 , or when
high beam is on with high beam assist
or intelligent light range 3 118.
High beam assist
l illuminates green.
The high beam assist or intelligent light range is activated 3 116,
3 118.
Adaptive forward lighting
f illuminates or flashes yellow.
Page 100 of 261
98Instruments and controls
●Remaining Oil Life : indicates
when to change the engine oil and filter 3 87
● Speed Warning : if exceeding the
preset speed, a warning chime will be activated
● Traffic Sign Assistant : displays
detected traffic signs for the
current route section 3 172
● Following Dist. : displays the
distance to a preceding moving
vehicle 3 161
Trip/Fuel Information Menu W
Press MENU to select W.
Turn the adjuster wheel to select a
page:Page 1:
● trip odometer 1
● average consumption 1
● average speed 1
Page 2: ● trip odometer 2
● average consumption 2
● average speed 2
Page 101 of 261

Instruments and controls99
Page 3:● digital speed
● range
● instantaneous consumption
The information of page 1 and
page 2 can be reset separately for odometer, average consumption and
average speed, making it possible to display different trip information.
Select pages by turning the adjuster
wheel on the turn signal lever.Trip odometer 1 or 2
Trip odometer displays the recorded
distance since a certain reset.
Trip odometer counts up to a distance
of 9,999 km and then restarts at 0.
Reset trip odometer by pressing
SET/CLR on the turn signal lever for
a few seconds or by pressing the
reset knob near the speedometer
separately for selected page 1 or 2.
Average consumption 1 or 2
Display of average consumption. The measurement can be reset at any
time and starts with a default value.
To reset, press SET/CLR for a few
seconds separately for selected
page 1 or 2.
Average speed 1 or 2
Display of average speed. The
measurement can be reset at any
time.
To reset, press SET/CLR for a few
seconds separately for selected
page 1 or 2.
Digital speedDigital display of the instantaneous
speed.
Range Range is calculated from current fuel
tank content and current
consumption. The display shows
average values.
After refuelling, the range is updated
automatically after a brief delay.
When the fuel level in the tank is low,
a message appears in the display.
When the tank must be refuelled
immediately, a warning message is
displayed.
Page 105 of 261

Instruments and controls103Vehicle messages
Messages are indicated in the Driver
Information Centre, in some cases
together with a warning chime.
Press SET/CLR , MENU or turn the
adjuster wheel to confirm a message.
Messages in the Driver
Information Centre
The vehicle messages are displayed
as text. Follow the instructions given
in the messages.
Messages in the
Colour-Info-Display
Some important messages may
appear additionally in the
Colour-Info-Display. Press the
multifunction knob to confirm a
message. Some messages only pop- up for a few seconds.
Warning chimes
If several warnings appear at the
same time, only one warning chime
will sound.
When starting the engine or whilst
driving
The warning chime regarding
unfastened seat belts has priority
over any other warning chime.
● If seat belt is not fastened.
● If a door or the boot lid is not fully
closed when starting off.
● If the soft top is not completely opened or closed.
● If the soft top lid is not completely
closed.
● If the load compartment partition is folded in when operating the
soft top.
● If a certain speed is exceeded with parking brake applied.
● If a certain speed is exceeded when operating the soft top.
● If a programmed speed or speed
limit is exceeded.
Page 106 of 261

104Instruments and controls● If a warning message appears inthe Driver Information Centre.
● If the parking assist detects an object.
● If unintended lane change occurs.
● If the exhaust 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 108 of 261

106Instruments and controlsVehicle 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.