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76
Storage
The EC kerb weight includes
weights for the driver (68 kg),
luggage (7 kg) and all fluids (tank
90% full).
Optional equipment and
accessories increase the kerb
weight.
■
Driving with a roof load increases the sensitivity of the vehicle to
cross-winds and has a detrimental
effect on vehicle handling due to
the vehicle’s higher centre of
gravity. Distribute the load evenly
and secure it properly with retaining
straps. Adjust the tyre pressure and
vehicle speed according to the load
conditions. Check and retighten the
straps frequently.
The permissible roof load is 75 kg
and 100 kg for vehicles with roof
railing. The roof load is the
combined weight of the roof rack
and the load.
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84
Instruments and controls
Fuel gauge Displays the fuel level or gas pressure
in the tank depending on the
operation mode.
Control indicator
Y illuminates if the
level in the tank is low. Refuel
immediately if it flashes. During
natural gas operation, the switch
automatically switches over to petrol
operation 3 84. When operating with natural gas, the
message LoFuEL is displayed if the
level in the petrol tank is low.
Acknowledge the message by
pressing the reset button
3 83.
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
Pressing button
Y switches between
petrol and natural gas operation.
Switching
is not possible at high loads
(e.g. strong acceleration, running at
full throttle). The LED status shows
the current operating mode.
Natural gas
operation = LED off.
Petrol operation = LED illuminates.
As soon as the natural gas tanks are
empty, petrol operation is
automatically engaged until the
ignition is switched off.
Page 90 of 228

90
Instruments and controls
It illuminates for a few seconds when
the ignition is switched on.
Flashing during driving
The system has kicked in. Engine
output may be reduced and the
vehicle may be braked automatically
to a small degree 3 142.
Illuminates while driving
The system is switched off or a fault
is present. Continued driving is
possible. Driving stability, however,
may deteriorate depending on road
surface conditions.
Have the cause of the fault remedied
by a workshop.
ESP® Plus
3 142.
Engine coolant
temperature
W illuminates red.
Illuminates when the engine is
running
Stop, switch off engine. Caution
Coolant temperature too high.
Check coolant level immediately
3 157.
If there is sufficient coolant, consult
a workshop.
Preheating and diesel
particle filter
!
illuminates or flashes yellow.
Illuminated
Preheating activated. Only activates
when outside temperature is low.
Flashes
( in
vehicles fitted with a diesel particle
filter).
Control indicator ! flashes if the filter
requires cleaning and previous
driving conditions did not permit
automatic cleaning. Continue driving
and if possible do not allow engine
speed to drop below 2000 rpm. The control indicator
! goes off as
soon
as the self-cleaning operation is
complete.
Diesel particle filter 3 129.
Deflation detection system
and tyre pressure
monitoring system
w illuminates or flashes red or yellow.
Control indicator lights red
Tyre pressure loss. Stop immediately
and check tyre pressure. A maximum
speed of 80 km/h is permitted for run-
flat tyres 3 174.
Control indicator lights yellow
Fault in system or tyre without
pressure sensor mounted (e. g. spare
wheel). Consult a workshop.
Flashes
Flashes three times to indicate
system initialisation.
Deflation detection system 3 177,
tyre pressure monitoring system
3 176.
Page 91 of 228

Instruments and controls
91
Interactive Driving System,
Continuous Damping
Control, SPORT-mode
IDS+ illuminates yellow.
Illuminates for approximately 10
seconds after the driver's door is
opened. Illumination whilst driving
indicates a fault in the system. The
system
switches to the harder chassis
setting for reasons of safety. Have the
cause of the fault remedied by
a workshop.
IDS Plus
3 143, CDC 3 143, SPORT
mode 3 143.
Engine oil pressure
I illuminates red.
It illuminates when the ignition is
switched on and goes out shortly after
the engine starts. Illuminates when the engine is
running
Caution
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 selectorlever 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.
Do not remove key until vehicle
has come to a standstill, otherwise
the steering column lock could
engage unexpectedly. Seek the assistance of a workshop.
Low engine oil level
S
illuminates yellow.
Engine oil level is checked
automatically.
Illuminates when the engine is
running
Low
engine oil level. Check engine oil
level and top up as necessary
3 156.
Low fuel
Y illuminates or flashes yellow.
Illuminated
Level in fuel tank too low.
Flashes
Fuel used up. Refuel immediately.
Never run the tank dry.
Catalytic converter 3 130.
Bleeding the diesel fuel system
3 159.
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Instruments and controls
101
Brake light switch
Brake light does not come on during
braking. Have the cause of the fault
remedied immediately by
a workshop.
Engine cooling level Low fluid level in engine cooling
system. Check coolant immediately
3 157. Drain diesel fuel filter
If
there is water in the diesel fuel filter,
the message InSP4 appears in the
instrument panel. Consult
a workshop.
Lighting
Important exterior lighting lamps,
including cables and fuses, are
monitored. In trailer mode, trailer
lighting is also monitored. Trailers
with LED lighting must have an
adapter that enables lamp monitoring
as with conventional bulbs. The failed lighting will be indicated in
the information display or the
message InSP2 will appear in the
instrument panel display.
Anti-theft alarm system
System fault in anti-theft alarm
system. Have the cause of the fault
remedied by a workshop.
Tyre pressure On vehicles with tyre pressure
monitoring
system, if there is low tyre
pressure, information on which tyre to
check appears on the display.
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102
Instruments and controls
Reduce speed and check tyre
pressure at the next opportunity. Tyre
pressure monitoring system 3 176.
Check tyre pressure 3 175, 3 220.If there is a considerable loss of
pressure, a corresponding message
appears indicating the tyre.
Steer out of flow of traffic as quickly
as possible without endangering
other vehicles. Stop and check the
tyres. Mount the spare wheel
3 182.
If run-flat tyres are fitted, maximum
speed is 80 km/h. Information
3 174. Tyre pressure monitoring
system 3 176. Washer fluid level
Low washer fluid level. Top up
washer fluid
3 158. Trip computer
Trip computer in Board-
Info-Display
Access the data by pressing the
BC
button on the infotainment system or
the
left adjuster wheel on the steering
wheel.
Some information appears in the
display in an abbreviated form.
Once an audio function has been
selected, the lower row of the trip
computer function is displayed
furthermore.
Page 107 of 228
Instruments and controls
107
Driving Time incl Stops
The time the vehicle is in motion is
recorded. The time the vehicle is
stationary with the ignition switched
on is included.
Travel Time
Measurement of the time from
manual
activation via Start to manual
deactivation via Reset.
Tyre pressures Select menu Tyres from the Board
Computer menu. The current pressure of each tyre is
displayed.
Further information
3 176.
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126
Climate control
Air conditioning regular
operation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once
a month, irrespective of the weather
and time of year. Operation with
cooling is not possible when outside
temperature is low.
Service
For
optimal cooling performance, it is
recommended that the climate control
system be checked annually, starting
three years after initial vehicle
registration.
■ Functionality and pressure test
■ Heating functionality
■ Leakage check
■ Check of drive belts
■ Cleaning of condenser and evaporator drainage
■ Performance check