2014 MERCEDES-BENZ CLS COUPE transmission

Problems with the fuel and fuel tank
This section provides descriptions of and solutions to safety-relevant problems. Descriptions
of and solutions to further problems can be found in the Digital Owner's Manual. Problem
Possible causes/consequences and
M
MSolutions Fuel is leaking from the
vehicle. The fuel line or the fuel tank is faulty.
G WARNING
There is a risk of fire or explosion. X Turn the key to position 0in the ignition lock immediately and
remove it (Y page 159).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rial can come into contact with hot vehicle
components. In particular, do not park on dry grassland or harvested grain fields. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position P
R start the engine
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the key
with you and lock the vehicle. Never leave
children unattended in the vehicle.
! Always secure the vehicle correctly
against rolling away. Otherwise, the vehicle or its drivetrain could be damaged.
To ensure that the vehicle is secured against rolling away unintentionally:
R the parking brake must be applied
R the transmission must be in position Pand
the key must be removed from the ignition lock
R the front wheels must be turned towards
the kerb on steep uphill or downhill gradi-
ents 180
ParkingDriving and parking

Switching off the engine
Important safety notes G
WARNING
The automatic transmission switches to neu-
tral position Nwhen 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 position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Vehicles with automatic transmission X
Firmly depress the parking brake.
X All vehicles (except AMG vehicles): shift
the transmission to position P.Selector lever in AMG vehicles with P button
X AMG vehicles: when the vehicle is station-
ary, press button :.
Using the key X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
i If you switch the engine off with the trans-
mission in position Ror D, the automatic
transmission shifts to Nautomatically.
If you then open the driver's door or the
front-passenger door or remove the key
from the ignition, the automatic transmis-
sion shifts to P. If you shift the automatic transmission to
N
before switching off the engine, the auto-
matic transmission remains in Neven if the
driver's door or the front-passenger door is
opened.
Using KEYLESS-GO
X Press the Start/Stop button (Y page 159).
The engine stops and all the indicator
lamps in the instrument cluster go out.
i If you use the Start/Stop button to switch
off the engine, the automatic transmission
shifts to Nautomatically. If you then open
one of the front doors, the automatic trans-
mission shifts to P.
i The engine can be switched off while the
vehicle is in motion by pressing and holding
the Start/Stop button for about three sec- onds. This function operates independently
of the ECO start/stop automatic engine
switch-off function. Parking brake
G
WARNING
If you must brake the vehicle with the parking brake, the braking distance is considerably
longer and the wheels could lock. This increa-
ses the risk of skidding and an accident.
Only use the parking brake to brake the vehi- cle when the service brake is faulty. Do not
apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position P
R start the engine Parking
181Driving and parking
Z

information about this from your Mercedes-
Benz Service Centre.
Brake pads/linings and discs that are either
new or have been replaced only achieve opti- mum braking effect after several hundred kil-
ometres of driving. Compensate for the
reduced braking effect by applying greater
force to the brake pedal. Always be aware of
this and adapt your driving and braking
accordingly during the running-in period.
Excessive heavy braking results in corre-
spondingly high brake wear. Observe the
brake wear warning lamp in the instrument
cluster and note any brake status messages
in the multifunction display. If you regularly
drive at high speeds, it is particularly impor-
tant to have the brake system checked and
maintained regularly. Driving on wet roads
Aquaplaning If water has accumulated to a certain depth
on the road surface, there is a danger of aqua- planing occurring, even if:
R you are driving at low speeds
R the tyres have adequate tread depth
For this reason, drive in the following manner in the event of heavy rain or in conditions in
which aquaplaning can occur:
R lower your speed
R avoid tyre ruts
R avoid sudden steering movements
R brake carefully
Driving on flooded roads !
Bear in mind that vehicles travelling in
front or in the opposite direction create
waves. This may cause the maximum per-
missible water depth to be exceeded.
These notes must be observed under all
circumstances. You could otherwise dam-
age the engine, the electronics or the trans- mission. If you must drive on stretches of road on
which water has collected, please bear in
mind that:
R the maximum permissible fording depth in
still water is 25 cm
R you should drive no faster than walking
pace Winter driving
G
WARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
This increases the risk of skidding and having
an accident.
Do not shift down for additional engine brak-
ing on a slippery road surface. G
DANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winterproofed at a qualified specialist workshop at the onset of winter.
You should drive particularly carefully on slip-
pery road surfaces. Avoid sudden accelera-
tion, steering and braking manoeuvres.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X Move the transmission to position N.
X Try to bring the vehicle under control by
using corrective steering.
The outside temperature indicator is not
designed to serve as an ice-warning device Driving tips
185Driving and parking Z

The LIM indicator lamp on the cruise control
lever indicates which system you have selec- ted:
R LIM indicator lamp off: cruise control is
selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected.
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds.
Selecting cruise control X
Check whether LIM indicator lamp :is off.
If it is off, cruise control is already selected.
If it is not off, press the cruise control lever in the direction of arrow ;.
LIM indicator lamp :in the cruise control
lever goes out. Cruise control is selected.
Activation conditions To activate cruise control, all of the following
activation conditions must be fulfilled:
R the parking brake must be released.
R you are driving faster than 30 km/h.
R ESP ®
must be switched on, but not inter-
vening.
R the transmission must be in position D.
R the cruise control function must be selec-
ted (Y page 187). Storing and maintaining the current
speed
You can accept the current speed if you are
driving faster than 30 km/h.
X Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever up :
or down ;.
X Remove your foot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
i Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically braking the vehicle.
Storing the current speed and calling up the last stored speed G
WARNING
If you call up the stored speed and it is lower
than the current speed, the vehicle deceler-
ates. If you do not know the stored speed, the vehicle could decelerate unexpectedly. There
is a risk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you do not know the stored speed, store the
desired speed again. Driving systems
187Driving and parking Z

X
Briefly pull the cruise control lever towards
you :.
X Remove your foot from the accelerator
pedal.
The first time cruise control is activated, it
stores the current speed or regulates the
speed of the vehicle to the previously
stored speed.
Setting a speed X
Press the cruise control lever up :for a
higher speed or down ;for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached.
X Release the cruise control lever.
The new speed is stored.
X To adjust the set speed in 1 km/h incre-
ments: briefly press the cruise control
lever up :or down ;to the pressure
point.
The last stored speed increases or decrea- ses in 1 km/h increments.
X To adjust the set speed in 10 km/h
increments: press the cruise control lever briefly up
:or down ;beyond the pres-
sure point.
The last stored speed increases or decrea- ses in 10 km/h increments.
i Cruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overtake,
cruise control adjusts the vehicle's speed
to the last speed stored after you have fin- ished overtaking.
Deactivating cruise control There are several ways to deactivate cruise
control:
X Briefly press the cruise control lever for-
wards =.
or
X Brake.
or X Briefly press the cruise control lever in the
direction of arrow ;.
Variable SPEEDTRONIC is selected. LIM
indicator lamp :in the cruise control lever
lights up.
Cruise control is automatically deactivated if: R you depress the parking brake
R you are driving at less than 30 km/h
R ESP ®
intervenes or you deactivate ESP ®
R you shift the transmission to position N
while driving
If cruise control is deactivated, you will hear a warning tone. You will see the Cruise con‐ Cruise con‐188
Driving systemsDriving and parking

If DISTRONIC PLUS no longer detects a vehi-
cle in front, it may unexpectedly accelerate to the speed stored.
This speed can:
R be too high for a filter lane or a slip road
R be so high in the right lane that you pass
vehicles driving on the left (left-hand drive
countries)
R be so high in the left lane that you pass
vehicles driving on the right (right-hand
drive countries)
If there is a change of drivers, advise the new driver of the speed stored.
Cruise control lever :
To store the current speed or a higher
speed
; To set the specified minimum distance
= LIM indicator lamp
? To store the current speed and calling up
the last stored speed
A To store the current speed or a lower
speed
B To switch between DISTRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
You can operate DISTRONIC PLUS and varia- ble SPEEDTRONIC with the cruise control
lever. The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off: DISTRONIC PLUS
is selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected.
Selecting DISTRONIC PLUS X
Check whether LIM indicator lamp :is off.
If it is off, DISTRONIC PLUS is already selec- ted.
If it is not off, press the cruise control lever
in the direction of arrow ;.
LIM indicator lamp :in the cruise control
lever goes out. DISTRONIC PLUS is selec-
ted.
Activating DISTRONIC PLUS Activation conditions
To activate DISTRONIC PLUS, the following
conditions must be fulfilled:
R the engine must be running. It may take up
to two minutes of driving before DIS-
TRONIC PLUS is ready for use.
R the parking brake must be released.
R ESP ®
must be switched on, but not inter-
vening.
R Active Parking Assist must not be activa-
ted.
R the transmission must be in position D.
R the bonnet must be closed. Driving systems
193Driving and parking Z

Even if the vehicle in front leaves the detec-
tion range, DISTRONIC PLUS temporarily
maintains the current driving speed and does not accelerate. This is based on the current
map data in the navigation system.
Afterwards, the vehicle accelerates back to
the speed you set.
Stopping G
WARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:
R there is a malfunction in the system or in
the voltage supply.
R DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a vehi-
cle occupant or from outside the vehicle.
R the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
R the battery is disconnected.
R the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
If DISTRONIC PLUS detects that the vehicle in front is stopping, it brakes your vehicle until it
is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
i Depending on the specified minimum dis-
tance, your vehicle will come to a standstill
at a sufficient distance behind the vehicle in front. The specified minimum distance is
set using the control on the cruise control
lever. When DISTRONIC PLUS is activated, the
transmission is shifted automatically to posi-
tion Pif:
R the driver's door is open and the driver's
seat belt is unfastened
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function
R the bonnet is opened
R a system fault occurs
R the power supply is insufficient
Setting a speed X
Press the cruise control lever up :for a
higher speed or down ;for a lower speed.
X Keep the cruise control lever pressed until
the desired speed is reached.
X Release the cruise control lever.
The new speed is stored. DISTRONIC PLUS
is activated and adjusts the vehicle's speed to the new speed stored.
X To adjust the set speed in 1 km/h incre-
ments: briefly press the cruise control
lever up :or down ;to the pressure
point.
The last stored speed increases or decrea-
ses in 1 km/h increments.
X To adjust the set speed in 10 km/h
increments: briefly press the cruise con-
trol lever up :or down ;beyond the
pressure point.
The last stored speed increases or decrea- ses in 10 km/h increments. 196
Driving systemsDriving an
d parking

=
Specified minimum distance to the vehi-
cle in front; adjustable
? Own vehicle
X Select the Distance display
Distance display function
using the on-board computer
(Y page 249).
Display when DISTRONIC PLUS is activa-
ted :
Vehicle in front, if detected
; Specified minimum distance to the vehi-
cle in front; adjustable
= Own vehicle
? DISTRONIC PLUS active (text only
appears when the cruise control lever is
actuated)
You will see the stored speed for approx-
imately five seconds when you activate DIS-
TRONIC PLUS.
X Select the Distance display
Distance display function
using the on-board computer
(Y page 249).
i You will see the stored speed for approx-
imately five seconds when you activate
DISTRONIC PLUS. Deactivating DISTRONIC PLUS There are several ways to deactivate DIS-
TRONIC PLUS:
X Briefly press the cruise control lever for-
wards :.
or
X Brake, unless the vehicle is stationary.
or X Briefly press the cruise control lever in the
direction of arrow =.
Variable SPEEDTRONIC is selected. LIM
indicator lamp ;in the cruise control lever
lights up.
When you deactivate DISTRONIC PLUS, you
will see the DISTRONIC DISTRONIC PLUS
PLUSoff
offmessage in
the multifunction display for approximately
five seconds.
i The last speed stored remains stored until
you switch off the engine.
i DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal.
DISTRONIC PLUS is automatically deactiva-
ted if: R you apply the parking brake
R you are driving slower than 25 km/h and
there is no vehicle in front, or if the vehicle
in front is no longer detected
R ESP ®
intervenes or you deactivate ESP ®
R the transmission is in the P,Ror Nposition
R you pull the cruise control lever towards
you in order to pull away and the front- 198
Driving systemsDriving and parking