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Keys, doors and windows19Keys, doors and
windowsKeys, locks ................................... 19
Doors ........................................... 24
Vehicle security ............................ 25
Exterior mirrors ............................ 28
Interior mirrors ............................. 29
Windows ...................................... 30
Roof ............................................. 33Keys, locks
Keys Replacement keys
The key number is specified in the
Car Pass or on a detachable tag.
The key number must be quoted
when ordering replacement keys as it
is a component of the immobiliser
system.
Locks 3 263.
The code number of the adapter for
the locking wheel nuts is specified on
a card. It must be quoted when
ordering a replacement adapter.
Wheel changing 3 253.
Lock cylinders
Designed to free-wheel if they are
forcefully rotated without the correct
key or if the correct key is not fully
inserted. To reset, turn cylinder with
the correct key until its slot is vertical,
remove key and then re-insert it. If the cylinder still free-wheels, turn the key
through 180° and repeat operation.Key with foldaway key section
Press button to extend. To fold the
key, first press the button.
Car Pass The Car Pass contains security
related vehicle data and should
therefore be kept in a safe place.
When the vehicle is taken to a
workshop, this vehicle data is needed
in order to perform certain operations.
Page 106 of 299
104Instruments and controls
The portable ashtray can be placed inthe 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 miles.
Trip odometer The top line displays the recorded
distance since the last reset.
To reset, press the SET/CLR button
on the turn signal lever for a few
seconds 3 117.
Page 107 of 299
Instruments and controls105
Some versions are equipped with a
reset knob between speedometer
and Driver Information Centre: to
reset hold the knob depressed for a
few seconds with the ignition on.
Trip odometer counts up to a distance
of 2000 miles and restarts then with 0.
Tachometer
Displays the engine speed.
Drive in a low engine speed range for each gear as much as possible.
Caution
If the needle is in the red warning
zone, the maximum permitted
engine speed is exceeded. Engine at risk.
Fuel gauge
Displays the fuel level or gas pressure
in the tank depending on the
operation mode.
Control indicator i illuminates if the
level in the tank is low. Refuel
immediately if it flashes.
During liquid gas operation, the
system automatically switches over to
petrol operation when gas tanks are
empty 3 105.
Never run the tank dry.
Because of the fuel remaining in the
tank, the top-up quantity may be less
than the specified tank capacity.
Fuel selector
Natural gas operation
Page 109 of 299

Instruments and controls107Caution
If engine coolant temperature is
too high, stop vehicle, switch off
engine. Danger to engine. Check
coolant level.
Service display
The engine oil life system lets you
know when to change the engine oil
and filter. Based on driving
conditions, the interval at which an
engine oil and filter change will be
indicated can vary considerably.
In the Uplevel-Combi-Display, the
remaining oil life duration is displayed
in the Vehicle Information Menu .
In the Midlevel-Display, the remaining engine oil life duration is displayed by
the control indicator I, therefore the
ignition must be switched on, with the
engine not running.
The menu and function can be
selected via the buttons on the turn signal lever.
To display the remaining engine oil life duration:
Press MENU to select the Vehicle
Information Menu .
Turn the adjuster wheel to select
Remaining Oil Life .
The system must be reset every time
the engine oil is changed to allow
proper functionality. Seek the
assistance of a workshop.
Press the SET/CLR button to reset.
Therefore the ignition must be
switched on, with the engine not
running.
When the system has calculated that
engine oil life has been diminished,
Change Engine Oil Soon or a warning
code appears in the Driver
Information Centre. Have engine oil
and filter changed by a workshop
within one week or 300 miles
(whichever occurs first).
Driver Information Centre 3 117.
Service information 3 267.
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
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112Instruments and controls
Flashes when the engine isrunning
Fault that could lead to catalytic
converter damage. Ease up on the
accelerator until the flashing stops.
Seek the assistance of a workshop
immediately.
Service vehicle soon g illuminates yellow.
Additionally a warning message or a
warning code is displayed.
The vehicle needs a service.
Seek the assistance of a workshop.
Vehicle messages 3 123.
Brake and clutch system R illuminates red.
The brake and clutch fluid level is too low 3 225.9 Warning
Stop. Do not continue your
journey. Consult a workshop.
Illuminates after the ignition is
switched on if the manual parking
brake is applied 3 171.
Operate pedal - illuminates or flashes yellow.
Illuminates
Brake pedal must be depressed to release the electric parking brake
3 171.
Clutch pedal must be depressed to
start the engine in Autostop mode.
Stop-start system 3 159.
Flashes
Clutch pedal must be depressed for a normal start of the engine 3 17,
3 157.
On some versions, the 'operate pedal'
message is indicated in the Driver
Information Centre (DIC) 3 123.
Electric parking brake m illuminates or flashes red.Illuminates
Electric parking brake is applied
3 171.
Flashes Electric parking brake is not fullyapplied 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 3 171.
Flashes Electric parking brake is in service
mode. Stop vehicle, apply and
release the electric parking brake to
reset.
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Instruments and controls119
■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 3 202.
■ Following Dist. : Displays the
distance to a moving vehicle ahead
3 189.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Combi-Display.
Trip/Fuel Information Menu
Press MENU to select the Trip/Fuel
Information Menu , or select W on
Uplevel-Combi-Display.
Turn the adjuster wheel to select a submenu. Press the SET/CLR button
to confirm.
■ trip odometer 1
■ trip odometer 2
■ digital speed
Trip odometer 2 and digital speed are
only available on vehicles with
Uplevel-Combi-Display.
Reset trip odometer by pressing the
SET/CLR button on the turn signal
lever for a few seconds or by pressing the reset knob between speedometer
and Driver Information Centre with
the ignition on.
On vehicles with trip computer, more
submenus are available.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Combi-Display.
Trip/Fuel Information Menu, Trip
Computer 3 127.
ECO Information Menu
Press MENU to select s in the top
line of the Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press the SET/CLR button
to confirm.
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128Instruments and controls
■ digital speed
■ range
■ instantaneous consumption
■ route guidance
Trip computer 1 and 2 The information of two trip computerscan be reset separately for odometer,
average consumption and average
speed by pressing the SET/CLR
button, making it possible to display
different trip information for different
drivers.Trip odometer
Trip odometer displays the recorded
distance since a certain reset.
Trip odometer counts up to a distance
of 2,000 miles then restarts at 0.
To reset, press the SET/CLR button
for a few seconds.
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 on vehicles with
Uplevel-Combi-Display.
When the tank needs to be refuelled
immediately, a warning code or
warning message is displayed on
vehicles with Midlevel-Display or
Uplevel-Combi-Display.
Additionally the control indicator i in
the fuel gauge illuminates or flashes
3 115.
Average consumption
Display of average consumption. The measurement can be reset at any
time and starts with a default value.
To reset, press the SET/CLR button
for a few seconds.
Instantaneous consumption
Display of the instantaneous
consumption.
Average speed
Display of average speed. The
measurement can be reset at any
time.
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Instruments and controls129
To reset, press the SET/CLR button
for a few seconds.
Digital speed Digital display of the instantaneous
speed.
Traffic sign assistant
Indicates detected traffic signs for the
current route section 3 202.
Route guidance
In addition to the navigation
information in the Color-Info-Display,
route guidance is displayed in the
Driver Information Centre.
Different indication on vehicles with
natural gas engine:
Range
Range is indicated for petrol mode
and natural gas mode.
Both modes can be indicated added
together.
Average consumption
Average consumption is always
indicated in the selected mode.Fuel selector 3 105.
Instantaneous consumption Instantaneous consumption is always
indicated in the selected mode.
Fuel selector 3 105.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.
Personalised settings in theGraphic-Info-Display
CD 400plus/CD 400/CD 300