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Driving and operating115Engine exhaust9Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gases.
Caution
Fuel grades other than those listed on pages 3 129, 3 182 could
damage the catalytic converter or
electronic components.
Unburnt petrol will overheat and
damage the catalytic converter.
Therefore avoid excessive use of the starter, running the fuel tank
dry and starting the engine by
pushing or towing.
In the event of misfiring, uneven
engine running, a reduction in engine performance or other unusual
problems, have the cause of the fault
rectified by a workshop as soon as
possible. In an emergency, driving
can be continued for a short period,
keeping vehicle speed and engine
speed low.
Manual transmission
To engage reverse, depress the
clutch pedal and engage the reverse
gear.
If the gear does not engage, set the
lever to neutral, release the clutch
pedal and depress again; then repeat
gear selection.
Do not slip the clutch unnecessarily.
When operating, depress the clutch
pedal completely. Do not use the
pedal as a foot rest.
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116Driving and operatingCaution
It is not advisable to drive with thehand resting on the selector lever.
Upshift indication 3 75.
Stop-start system 3 111.
Manual transmission
automated
The automated manual transmission permits manual gearshifting (manual
mode) or automatic gearshifting
(automatic mode), both with
automatic clutch control.
Manual shifting is possible by tapping the selector lever in manual mode.
Note
When unlocking or opening a
vehicle door, a sound may be
audible caused by the hydraulic
system.Transmission display
In automatic mode, the driving
programme is indicated by D in the
Driver Information Centre.
In manual mode, M and the number
of the selected gear is indicated.
R indicates reverse gear.
N indicates neutral.
Starting the engine
To start the engine, depress the brake
pedal, if transmission is not in position N .
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Driving and operating117Transmission automatically shifts to
N upon starting. There may be a slight
delay.
Starting is not possible if all brake
lights fail.
Selector lever
Always move the selector lever in the
appropriate direction as far as it will
go. Upon release, it automatically
returns to the centre position.
Note
Do not hold the selector lever in an
intermediate position. Not fully
engaging a gear may lead to
malfunction and the error code 81
may be displayed in the Driver
Information Centre.
Return the selector lever to the
centre position. After a short while N
will be displayed in the Driver
Information Centre and the system
will operate normally again.
Vehicle messages 3 84.N:neutral positionD/M:switch between automatic (D)
and manual (M) shift mode.
The transmission display
shows either D or M with the
selected gear<:upshifting in manual mode]:downshifting in manual modeR:reverse gear. Engage only
when vehicle is stationary
If selector lever is moved from R to the
left, D is directly engaged.
If selector lever is moved from D to
< or ], manual mode M is selected
and the transmission shifts.
Starting off
Depress the brake pedal and move
the selector lever to D/M or R. If D is
selected, transmission is in automatic mode and first gear is engaged. If R
is selected, reverse gear is engaged.
The vehicle starts to move when the
brake pedal is released.
To start off immediately without
depressing the brake pedal, move the selector lever to D or R. D or R will
flash for a short time in the Driver
Information Centre. Accelerate as
long as D or R flashes. The selected
gear is engaged and the vehicle starts moving.
If the accelerator pedal is not
depressed as long as D or R are
flashing in the Driver Information
Centre, no gear is engaged.
Stopping the vehicle In D, first gear is engaged and the
clutch is released when the vehicle is
stopped. In R, reverse gear remains
engaged.
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118Driving and operatingEngine braking
Automatic mode
When driving downhill, the manual transmission automated does not
shift into higher gears until a fairly
high engine speed has been reached. It shifts down in good time when
braking.
Manual mode
To utilise the engine braking effect, select a lower gear in good time when driving downhill. Changing into
manual mode is only possible while
the engine is running.
Rocking the vehicle
Rocking the vehicle is only
permissible if the vehicle is stuck in
sand, mud or snow. Move the selector
lever between R and D in a repeat
pattern. Do not race the engine and
avoid sudden acceleration.
Parking
The most recently engaged gear (see transmission display) remains
engaged when switching off ignition.
With N, no gear is engaged.Therefore always apply the parking
brake when switching off ignition. If
parking brake is not applied, P flashes
in the transmission display and the
key cannot be removed from the
ignition switch. P stops flashing in the
transmission display as soon as the
parking brake is slightly applied.
When the ignition is switched off, the
transmission no longer responds to
movement of the selector lever.
Manual mode
If a higher gear is selected when the
engine speed is too low, or a lower
gear when the speed is too high, the
shift is not executed. This prevents
the engine from running at too low or too high an engine speed. M and the
number of the selected gear will be
flashed, then the current gear is
displayed again..
If engine speed is too low, the
transmission automatically shifts to a
lower gear.
When + or - is selected in automatic
mode, the transmission switches to
manual mode and shifts accordingly.Gear shift indication
The symbol R with a number
alongside it, is indicated when
gearshifting is recommended for fuel
saving reasons.
Shift indication appears only in
manual mode.
Electronic driving programmes
The adaptive programme tailors
gearshifting to the driving conditions, e.g. greater load or gradients.
Fault
To prevent damage to the manual
transmission automated, the clutch is engaged automatically at high clutch
temperatures.
In the event of a fault, control indicator
g illuminates. Additionally, a
warning message is displayed in the
Driver Information Centre. Vehicle
messages 3 84.
Continued driving is restricted or not
possible, depending on the fault.
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124Driving and operatingIn the event of a fault in the system,
control indicator c illuminates.
Vehicle messages 3 84.Driver assistance
systems9 Warning
Driver assistance systems are
developed to support the driver
and not to replace the driver's
attention.
The driver accepts full
responsibility when driving the
vehicle.
When using driver assistance
systems, always take care
regarding the current traffic
situation.
Cruise control
The cruise control can store and
maintain speeds of approx. 25 km/h
to 170 km/h. Deviations from the
stored speeds may occur when
driving uphill or downhill.
For safety reasons, the cruise control cannot be activated until the brake
pedal has been operated once.
Activating in first gear is not possible.
Do not use the cruise control if it is not advisable to maintain a constant
speed.
On vehicles with manual transmission
automated, cruise control can be
activated in automatic mode and
manual mode.
Control indicator m 3 77.
Switching on the system
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Vehicle care151No.Circuit1Tailgate2Transmission output speed
sensor3Heated rear window4Heated exterior mirror5Sunroof6Transmission control module7Engine control module8–9ABS10Body control module, voltage11Rear view camera12–13–14Engine control module/Trans‐
mission control module15Injection system/Starter16Fuel pumpNo.Circuit17Engine control module118Engine control module219Injection system/Ignition20Air conditioning system21Battery sensor22Electric steering column lock23Cooling fan low24–25Exterior mirror switch26Engine control module/Manual
transmission automated
module27Fuel system28–29Seat occupancy recognition30Headlight range adjustment31Horn32Front fog lightNo.Circuit33High beam left34High beam right35–36Rear wiper37Cornering light left38Washer system39Cornering light right40–41–42Starter 243Instrument panel44Manual transmission auto‐
mated, DC-DC converter45Starter 146ABS47Cooling fan high
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152Vehicle careNo.Circuit48Front wiper49Body control module/Retained
power off
After having changed defective fuses
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Instrument panel fuse box
The fuse box is located on the driver's
side behind a cover in the instrument
panel.
To open the compartment, compress
the locking tabs, fold cover down and remove.No.Circuit1Onstar2Air conditioning system3Instrument cluster4Transmission control module5Infotainment6–7Rear parking assist8Data link connection9Electric steering column lock10Sensing and Diagnostic module11DC transformer12–13–14Linear power module15Central locking system/Ignition
system16Ignition system
Page 155 of 203
Vehicle care153No.Circuit17–18Instrument cluster19–20Headlight range adjustment21Power windows, front22Power windows, rear23–24Manual transmission auto‐
mated module25Auxiliary power outlet26Sunroof27Central gateway module28Body control module 829Body control module 730Body control module 631Body control module 532Body control module 4No.Circuit33Body control module 334Body control module 235Body control module 136–37Steering wheel control LED38–39Logistic/DC transformer40Power window, driver41Blower42Seat heating, front43Air conditioning module44Heated steering wheel45–Vehicle tools
Tools
Vehicles without spare
The vehicle tools are in the
compartment under the floor cover in
the load compartment.