100Instruments and controlsInstruments and
controlsControls ..................................... 101
Steering wheel adjustment ......101
Steering wheel controls ...........101
Heated steering wheel .............101
Horn ......................................... 102
Windscreen wiper/washer .......102
Rear window wiper/washer .....104
Outside temperature ................104
Clock ....................................... 105
Power outlets ........................... 106
Cigarette lighter .......................107
Ashtrays .................................. 107
Warning lights, gauges and indi‐ cators ......................................... 108
Instrument cluster ....................108
Speedometer ........................... 108
Odometer ................................ 108
Trip odometer .......................... 108
Tachometer ............................. 108
Fuel gauge .............................. 109
Fuel selector ............................ 109
Engine coolant temperature gauge ..................................... 109
Service display ........................ 110Control indicators ....................111
Turn signal ............................... 114
Seat belt reminder ...................114
Airbag and belt tensioners .......114
Airbag deactivation ..................114
Charging system .....................115
Malfunction indicator light ........115
Service vehicle soon ...............115
Brake and clutch system .........115
Operate pedal .......................... 115
Electric parking brake ..............115
Electric parking brake fault ......116
Antilock brake system (ABS) ...116
Upshift ..................................... 116
Power steering ........................ 116
Lane departure warning ..........116
Ultrasonic parking assist .........117
Electronic Stability Control off . 117
Electronic Stability Control and Traction Control system .........117
Traction Control system off .....117
Preheating ............................... 117
Diesel particle filter ..................117
Tyre pressure monitoring system .................................... 118
Engine oil pressure ..................118
Low fuel ................................... 118
Immobiliser .............................. 119
Reduced engine power ...........119
Exterior light ............................ 119High beam............................... 119
High beam assist .....................119
Adaptive forward lighting .........119
Fog light ................................... 119
Rear fog light ........................... 119
Low washer fluid ......................119
Cruise control .......................... 119
Adaptive cruise control ............119
Vehicle detected ahead ...........120
Door open ................................ 120
Information displays ...................120
Driver Information Centre ........120
Graphic-Info-Display, Colour- Info-Display ............................ 124
Smartphone controller .............126
Vehicle messages ......................126
Warning chimes .......................129
Battery voltage ........................ 129
Trip computer ............................. 130
Vehicle personalisation ..............132
OnStar ....................................... 137
Instruments and controls109Fuel gauge
Displays the fuel level or gas level 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 3 109.
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
Press LPG to switch between petrol
and liquid gas operation. The LED
1 status shows the current operating
mode.
1 off:petrol operation1 flashes:checking conditions
for fuel transition to
liquid gas operation.
Illuminates if
conditions are fulfilled.1 illumi‐
nates:liquid gas operation1 flashes
five times
and extin‐
guishes:liquid gas tank is
empty or failure in
liquid gas system. A
message is displayed
in the Driver
Information Centre.
As soon as the liquid gas tank is
empty, petrol operation is
automatically engaged until the
ignition is switched off.
Fuel for liquid gas operation 3 217.
Engine coolant temperature gauge
110Instruments and controlsDisplays the coolant temperature.left area:engine operating
temperature not yet
reachedcentral
area:normal operating
temperatureright area:temperature too highCaution
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.
To display the remaining engine oil
life duration use turn signal lever
buttons:
Press MENU to select the Vehicle
Information Menu X .
Turn the adjuster wheel to select
Remaining Oil Life .
The 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
300 miles (whichever occurs first).
Driver Information Centre 3 120.
Service information 3 289.
124Instruments and controls
●Economy Trend : Displays the
average consumption
development over a distance of
50 miles. Filled segments display
the consumption in 5 mile steps
and shows the effect of
topography or driving behaviour
on fuel consumption.
Performance Menu
Press MENU to select the
Performance Menu , or select C on
Uplevel-Combi-Display.
Turn the adjuster wheel to select a
submenu. Press SET/CLR to confirm.
Submenus are: ● Acceleration : Display of current
acceleration in all directions.
● Lap Timer : Display of lap times,
top speed, average speed and
average time. Follow the
instructions given in the
submenu.
● Coolant Temp. : Display of
coolant temperature.
● Battery Volt. : Display of vehicle
battery voltage.
Graphic-Info-Display, Colour-Info-Display
Depending on the vehicle
configuration the vehicle has a
Graphic-Info-Display or Colour-Info-
Display. The Info-Display is located in
the instrument panel above the
Infotainment system.
Graphic-Info-Display
Driving and operating169The engine will be switched off whilethe ignition stays on.
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating and
brake performance will be
maintained.
Caution
The power steering assist may be
reduced during an Autostop.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled:
● The stop-start system is not manually deactivated.
● The bonnet is fully closed.
● The driver's door is closed or the driver's seat belt is fastened.
● The vehicle battery is sufficiently charged and in good condition.
● The engine is warmed-up.
● The engine coolant temperature is not too high.
● The engine exhaust temperature is not too high, e.g. after driving
with high engine load.
● The ambient temperature is above -5 °C.
● The climate control system allows an Autostop.
● The brake vacuum is sufficient.
● The self-cleaning function of the diesel particle filter is not active.
● The vehicle was driven at least at
walking speed since the last
Autostop.Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
" Climate control " chapter for more
details 3 158.
Immediately after motorway driving,
an Autostop may be inhibited.
New vehicle running-in 3 166.
Vehicle battery discharge protection
To ensure reliable engine restarts,
several battery discharge protection
features are implemented as part of
the stop-start system.
Power saving measures
During an Autostop, several electric
features, e.g. auxiliary electric heater
or heated rear window are disabled or switched into a power saving mode.
The fan speed of the climate control
system is reduced to save power.
Restart of the engine by the driver
Depress the clutch pedal to restart the
engine.
Driving and operating217Caution
Use of fuel that does not comply toEN 590 or similar can lead to
engine powerloss, increased wear
or engine damage and may affect
your warranty.
Do not use marine diesel oils, heating
oils, Aquazole and similar diesel-
water emulsions. Diesel fuels must
not be diluted with fuels for petrol
engines.
Fuel for liquid gas operation Liquid gas is known as LPG
(Liquefied Petroleum Gas) or under its French name GPL (Gaz de Pétrole
Liquéfié). LPG is also known as
Autogas.
LPG consists mainly of propane and
butane. The octane rating is between 105 and 115, depending on the
butane proportion. LPG is stored
liquid at around 5 - 10 bar pressure.
The boiling point depends on the
pressure and mixing ratio. At ambient pressure, it is between -42 °C (pure
propane) and -0.5 °C (pure butane).Caution
The system works at an ambient
temperature of approx. -8 °C to
100 °C.
Full function of the LPG system can
only be guaranteed with liquid gas
which complies with the minimum
requirements of DIN EN 589.
Fuel selector
Pressing LPG switches between
petrol and liquid gas operation as
soon as the required parameters (coolant temperature, gas
temperature and minimum engine
speed) have been reached. The
requirements are usually fulfilled after
around 60 seconds (depending on
exterior temperature) and the first firm press on the accelerator. The LED
status shows the current operating
mode.1 off:petrol operation1 flashes:checking conditions
for fuel transition to
liquid gas operation.
Illuminates if
conditions are fulfilled.1 illumi‐
nates:liquid gas operation1 flashes 5
times and
extin‐
guishes:liquid gas tank is
empty or failure in
liquid gas system. A
message is displayed
in the Driver
Information Centre.
If the fuel tank is empty, the engine
will not start.
232Vehicle careDifferent dipsticks are used
depending on engine variant.
When the engine oil level has
dropped to the MIN mark, top up
engine oil.
We recommend the use of the same
grade of engine oil that was used at
last change.
The engine oil level must not exceed
the MAX mark on the dipstick.
Caution
Overfilled engine oil must be
drained or suctioned out.
Capacities 3 307.
Fit the cap on straight and tighten it.
Engine coolant
The coolant provides freeze
protection down to approx. -28 °C. In
northern countries with very low
temperatures, the factory filled
coolant provides frost protection
down to approx. -37 °C.Caution
Only use approved antifreeze.
Coolant level
Caution
Too low a coolant level can cause engine damage.
Service and maintenance291Additional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade depending on the minimum ambient
temperature 3 294.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only organic acid type-long life
coolant (LLC) antifreeze approved for
the vehicle. Consult a workshop.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C. Innorthern countries with very low
temperatures, the factory filled
coolant provides frost protection
down to approx. -37 °C. This
concentration should be maintained all year round. The use of additional
coolant additives that intend to give
additional corrosion protection or seal against minor leaks can cause
function problems. Liability for
consequences resulting from the use
of additional coolant additives will be
rejected.
Brake and clutch fluid Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should therefore be replaced at the specified interval.