light MERCEDES-BENZ CLA 2014 Manual PDF

automatic engine switch-off is again
possible.
Vehicles with automatic transmission
If the vehicle is braked to a standstill inDor
N, the ECO start/stop function switches off
the engine automatically.
iThe HOLD function can be activated if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase.When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated.
Automatic engine start
General notes
The engine starts automatically if:
Ryou switch off the ECO start/stop function
by pressing the ECO button.
Ryou engage reverse gearR.
Rthe vehicle starts to roll.
Rthe brake system requires this.
Rthe temperature in the vehicle interior
deviates from the set range.
Rthe system detects moisture on the
windshield when the air-conditioning
system is switched on.
Rthe condition of charge of the battery is too
low.
Rthe driver's seat belt is removed or the
driver's door is opened.
Vehicles with automatic transmission
The engine is started automatically if you:
Rrelease the brake pedal when HOLD is not
activated and the transmission is in
positionDorN.
Rdepress the accelerator pedal.
Rmove the transmission out of positionP.
iShifting the transmission to positionP
does not start the engine.
iIf you shift the transmission fromRtoD,
the ECO start/stop function is available
again once the\rsymbol reappears in
green in the multifunction display.
Deactivating/activating the ECO start/
stop function
ECO button
XTo switch off:press button.
Indicator lampand the\rsymbol in
the multifunction display go out.
XTo switch on:press button.
Indicator lamplights up.
If all conditions for automatic engine
switch-off (Ypage 139) are fulfilled, the
\rsymbol is shown in green in the
multifunction display.
If not all conditions for automatic engine
switch-off (Ypage 139) are fulfilled, the
\rsymbol is shown in yellow in the
multifunction display. If this is the case, the
ECO start/stop function is not available.
iIf indicator lampis off, the ECO start/
stop function has been deactivated
manually or as the result of a malfunction.
The engine will then not be switched off
automatically when the vehicle stops.
140Driving
Driving and parking

ProblemPossible causes/consequences and
Solutions
The engine is not
running smoothly and
is misfiring.
There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
XOnly depress the accelerator pedal slightly.
XHave the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.
The coolant
temperature display is
showing more than
248 ‡ (120 †). The
coolant warning lamp
may also be lit and a
warning tone may
sound.
The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant
to cool down.
XCheck the coolant level (Ypage 283). Observe the warning
notes as you do so and add coolant if necessary.
Automatic transmission
Important safety notes
GWARNING
If the engine speed is above the idling speed
and you engage transmission positionDor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission positionDorR,
always firmly depress the brake pedal and do
not simultaneously accelerate.
GWARNING
The automatic transmission switches to
neutral positionNwhen you switch off the
engine. The vehicle may roll away.There is a
risk of an accident.
After switching off the engine, always switch
to parking positionP. Prevent the parked
vehicle from rolling away by applying the
parking brake.
DIRECTSELECT lever
Overview of transmission positions
All vehicles (exceptAMG vehicles):the
DIRECT SELECT lever is on the right of the
steering column.
For information on the selector lever in AMG
vehicles (Ypage 144).
Park position with parking lock
Reverse gear
Neutral
Drive
iThe DIRECT SELECT leveralways returns
to its original position. The current
transmission positionP,R,NorDappears
142Automatic transmission
Driving and parking

!Overfilling the fuel tank could damage the
fuel system.
!Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
!Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
Do not get into the vehicle againduring the
refueling process. Otherwise, electrostatic
charge could build up again.
If you overfill the fuel tank, fuel could spray
out when the fuel pump nozzle is removed.
Forfurther information on fuel and fuel quality
(Ypage 346).
Refueling
Opening/closing the fuel filler flap
To open the fuel filler flap
Tire pressure table
"To insert the fuel filler cap
!Fuel type to be used
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey.
The position of the fuel filler cap is displayed

in the instrumentcluster.The arrow on
the filling pump indicates the side of the
vehicle.
Opening
XSwitch the engine off.
XRemove the SmartKey from the ignition
lock.
XPress the fuel filler flap in the direction of
arrow.
The fuel filler flap swings up.
XTurn the fuel filler flap counter-clockwise
and remove it.
XInsert the fuel filler cap into holder on the
inside of fuel filler flap".
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
XOnly fill the tank until the pump nozzle
switches off.
iDo not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
iClose the fuel filler flap before locking the
vehicle.
iIf you are driving with the fuel filler cap
open, thereserve fuel warning lamp
flashes.Amessage appears in the
multifunction display (Ypage 228).
In addition, theCheck Engine warning
lamp may light up (Ypage 248).
For further information on warning and
indicator lamps in the instrument cluster,
see (Ypage 248).
152Refueling
Driving and parking

In addition, they may operate vehicle
equipment and become trapped.There is a
risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
iThe electric parking brake performs a
function test at regular intervals while the
engine is switched off. The sounds that can
be heard while this is occurring are normal.
Applying/releasing manually
Applying
XPush handle.
When the electric parking brake is applied,
the(USA only) or (Canada only)
red indicator lamp lights up in the
instrument cluster.
iThe electric parking brake can also be
applied when the SmartKey is removed.
Releasing
XPull handle.
The red(USA only) or (Canada
only) indicator lamp in the instrument
cluster goes out.
iYou can only release the electric parking
brake when the SmartKey is in position1
or2in the ignition lock.
Applying automatically
The electric parking brake is applied
automatically:
Rif DISTRONIC PLUS brings the vehicle to a
standstill or
Rif the HOLD function is keeping the vehicle
stationary or
Rif Active Parking Assist is holding the
vehicle at a standstill
In addition, at least one of the following
conditions must be fulfilled:
Rthe engine is switched off.
Rthe driver's door is open and the seat belt
is not fastened.
Rthere is a system malfunction.
Rthe power supply is insufficient.
Rthe vehicle is stationary for a lengthy
period.
The red(USA only) or (Canada
only) indicator lamp in the instrumentcluster
lights up.
iThe electric parking brake is not
automatically engaged if the engine is
switched off by the ECO start/stop
function.
Releasing automatically
Your vehicle's electric parking brake is
automatically released if all of the following
conditions are met:
Rthe engine is running.
Rthe transmission is in positionDorR.
Rthe seat belt has been fastened.
Ryou depress the accelerator pedal.
If the transmission is in positionR, the tailgate
must be closed.
Parking155
Driving and parking
Z

Heavy and light loads
GWARNING
If you rest yourfoot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest.Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately.
Drive on for a short while. This allows the
airflow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed
reaction from the brakes when braking for the
first time. This may also occur after the
vehicle has been washed or driven through
deep water.
You have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the
vehicle washed, brake firmly while paying
attention to the traffic conditions. This will
warm up the brake discs, thereby drying them
more quickly and protecting them against
corrosion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
RBrake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distanceto the vehicle
ahead.
Servicing the brakes
!If the red brake warning lamp lights up in
the instrument cluster and you hear a
warning tone while the engine is running,
the brake fluid level may be too low.
Observe additional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked
immediately. This work should be carried
out at a qualified specialist workshop.
!A function or performance test should
only be carried out ona2-axle
dynamometer. If you are planning to have
the vehicle tested on such a dynamometer,
contact an authorized Mercedes-Benz
Center to obtain further information first.
Otherwise, you could damage the drive
train or the brake system.
!As the ESP®system operates
automatically, the engine and the ignition
must be switched off (theSmartKey must
be in position0or1in the ignitionlock) if:
Rthe electric parking brake is tested on a
brake dynamometer (for a maximum of
ten seconds)
Rthe vehicle is towed with the front axle
raised.
Braking triggered automatically by ESP®
may seriously damage the brake system.
All checks and maintenance work on the
brake system must be carried out at a
qualified specialist workshop. Consult a
qualified specialist workshop to arrange this.
Driving tips159
Driving and parking
Z

Deactivating cruise control
There are several ways to deactivate cruise
control:
XBriefly press the cruise control lever
forwards".
or
XBrake.
Cruise control is automatically deactivated if:
Rthe vehicle is secured with the electric
parking brake
Ryou are driving at less than 20 mph
(30 km/h)
RESP®intervenes or you deactivate ESP®
Ryou shift the transmissionto positionN
while driving
If cruise control is deactivated, you will hear
a warning tone. You will see theCruise
Control Offmessage in the multifunction
display for approximately five seconds.
iWhen you switch off the engine, the last
speed stored is cleared.
DISTRONIC PLUS
General notes
DISTRONIC PLUS regulates the speed and
automatically helps you maintain the
distance to the vehicle detected in front.
Vehicles are detected with the aid of the radar
sensor system. DISTRONIC PLUS brakes
automatically so that the set speed is not
exceeded.
Change into a lower gear in good time on long
and steep downhill gradients. This is
especially important if the vehicle is laden. By
doing so, you will make use of the braking
effect of the engine. This relieves the load on
the brake system and prevents the brakes
from overheating and wearing too quickly.
If DISTRONIC PLUS detects that there is a risk
of a collision, you will be warned visually and
acoustically. DISTRONIC PLUS cannot
prevent a collision without your intervention.
An intermittent warning tone will then sound
and the distance warning lamp will light up in
the instrument cluster. Brake immediately in
order to increase the distance to the vehicle
in front or take evasive action provided it is
safe to do so.
DISTRONIC PLUS operates in range between
0 mph (0 km/h) and 120 mph (200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS transmits radar waves,
it can resemble the radar detectors of the
responsible authorities. You can refer to the
relevant chapter in the Operator's Manual if
questions are asked about this.
iThis device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with, alter, or use
in any non-approved way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
Important safety notes
GWARNING
DISTRONIC PLUS does not react to:
Rpeople or animals
Rstationary obstacles on the road, e.g.
stopped or parked vehicles
Roncoming and crossingtraffic
As a result, DISTRONIC PLUS may neither give
warnings nor intervene in such situations.
There is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
164Driving systems
Driving and parking

DISTRONIC PLUS displays in the
instrument cluster
Displays in the speedometer
Example: DISTRONIC PLUSdisplays in thespeedometer
When DISTRONIC PLUS is activated, one or
two segmentsin the set speed rangelight
up.
If DISTRONIC PLUS detectsavehicle in front,
segmentsbetween speed of the vehicle in
front"and stored speedlight up.
iFor design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for DISTRONIC PLUS.
Display when DISTRONIC PLUS is
deactivated
Vehicle in front, if detected
Distance indicator, current distance to
the vehicle in front
"Specified minimum distance to the
vehicle in front; adjustable
!Own vehicle
In the Assistance menu (Ypage 202) of the
on-board computer, you can select the
assistance display.
XSelect theAssistance Graphicfunction
using the on-board computer
(Ypage 203).
Display when DISTRONIC PLUS is
activated
Vehicle in front, if detected
Specified minimum distance to the
vehicle in front; adjustable
"Own vehicle
!DISTRONIC PLUS active (text only
appears when the cruise control lever is
actuated)
XSelect theAssistance Graphicfunction
using the on-board computer
(Ypage 203).
You will initially see the stored speed for
about five seconds when you activate
DISTRONIC PLUS.
Tips for driving with DISTRONIC PLUS
General notes
The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary. DISTRONIC PLUS is then
deactivated.
170Driving systems
Driving and parking

Crossing vehicles
DISTRONIC PLUS may detect vehicles that
are crossing your lane by mistake. Activating
DISTRONIC PLUS at traffic lights with
crossing traffic, for example, could cause
your vehicle to pull away unintentionally.
HOLD function
Important safety notes
GWARNING
When leaving the vehicle, it can still roll away
despite being braked by theHOLD function if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
Rthe electrical system in the engine
compartment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
the HOLD function and secure the vehicle
against rolling away.
!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automatically in certain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similarsituations:
Rwhen towing the vehicle
Rin the car wash
Deactivating the HOLD function
(Ypage 173).
General notes
The HOLDfunction can assistthe driver in the
following situations:
Rwhen pulling away, especially on steep
slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary
Rthe engine is running or if it has been
automatically switched off by the ECO
start/stop function
Rthe driver's door is closed or your seat belt
is fastened
Rthe electric parking brake is released
Rthe transmission positionD,RorNis
engaged while driving a vehicle with an
automatic transmission
RDISTRONIC PLUS is deactivated
172Driving systems
Driving and parking

care not to scratch or damage them
(Ypage 289).
Front sensors
CenterApprox. 40in (approx.
100cm)
CornersApprox. 24in (approx.
60cm)
Rear sensors
CenterApprox. 48 in (approx.
120 cm)
CornersApprox. 32in (approx.
80cm)
Minimum distance
CenterApprox. 8in (approx. 20cm)
CornersApprox. 8in (approx. 20cm)
If there is an obstacle within this range, the
relevant warning displays light up and a
warning tone sounds. If the distance falls
below the minimum, the distance may no
longer be shown.
Warning displays
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the center airvents.
The warning display for the rear area is
located on the headliner in the rear
compartment.
Warning display for the frontarea
Segments on the left-hand side of the
vehicle
Segments on the right-hand side of the
vehicle
"Segments showing operational readiness
The warning display for each side of the
vehicle is divided into five yellow and two red
segments. PARKTRONIC is operational if
yellow segments showing operational
readiness"light up.
The selected transmission position and the
directioninwhich the vehicle is rolling
determine which warning display is active
when the engine is running.
Transmission
position
Warning display
DFront area activated
R,Nor the vehicle
is rolling
backwards
Rear and front areas
activated
PNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
Rsixth segment onwards, you will hear an
intermittent warning tone for
approximately two seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two
176Driving systems
Driving and parking

seconds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
Indicator lamp
To deactivate/activate PARKTRONIC
If indicator lamplights up, PARKTRONIC is
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position2
in the ignition lock.
Driving systems177
Driving and parking
Z