2015 MERCEDES-BENZ B-CLASS SPORTS parking brake

Starting procedure with the Start/Stopbutton
The Start/Stop button can be used to start
the vehicle manually without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted in the ignition
lock and the SmartKey must be in the vehicle. This mode for starting the engine operates
independently of the ECO start/stop auto-
matic engine start function.
You can start the engine if a valid SmartKey isin the vehicle. Switch off the engine and
always take the SmartKey with you when
leaving the vehicle, even if you only leave it for
a short time. Pay attention to the important
safety notes.
X Depress the brake pedal and keep itdepressed.
X Press the Start/Stop button once(Y page 135).
The engine starts.
Pulling away
Automatic transmission
GWARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
Depress the accelerator carefully when pull-
ing away.
The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking
feature ( Ypage 205). It is only possible to shift the transmission
from position
Pto the desired position if you
depress the brake pedal. Only then can the
parking lock be deactivated.
If you do not depress the brake pedal, the
DIRECT SELECT lever can still be moved but
the parking lock remains engaged.
At transmission fluid temperatures below Ò 4 ‡ ( Ò20 †), you can only shift out of park
position Pinto another transmission position
when the engine is running.
iUpshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Information on the automatic release of the
electric parking brake ( Ypage 153).
Hill start assist
Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient. It
holds the vehicle for a short time after you
have removed your foot from the brake pedal. This gives you enough time to move your footfrom the brake pedal to the accelerator pedal
and to depress it before the vehicle begins to
roll.
GWARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill startassist.
Hill start assist is not active if: R you are pulling away on a level road or on a
downhill gradient.
R the transmission is in position N.
R the electric parking brake is applied.
R ESP ®
is malfunctioning.
Further information on holding the vehicle
stationary on uphill gradients ( Ypage 146).
138Driving
Driving and parking

ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stop- ped under certain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes
GWARNING
If the engine is switched off automatically andyou exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving. There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
:ECO start/stop display (example: color
multifunction display)
If the engine has been switched off automat-
ically by the ECO start/stop function, theè ECO symbol is shown in the multifunc-
tion display.
The stop/start function is automatically acti-
vated each time you start the engine with the SmartKey.
Automatic engine switch-off
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the engine automatically. The ECO start/stop function is operational
when:
R the indicator lamp in the ECO button is lit
green.
R the outside temperature is within the range
that is suitable for the system.
R the engine is at normal operating temper-
ature.
R the set temperature for the vehicle interior
has been reached.
R the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
All of the vehicle's systems remain active
when the engine is stopped automatically.
The HOLD function can also 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.
The engine can be switched off automatically
a maximum of four times (first stop and three subsequent stops) in succession.
Automatic engine start
The engine starts automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is not active
R you depress the accelerator pedal
R you engage reverse gear R
R you move the transmission out of position P
R you unfasten your seat belt or open the
driver's door
Driving139
Driving and parking
Z

Rthe vehicle starts to roll
R the brake system requires this
R the temperature in the vehicle interior devi-
ates from the set range
R the system detects moisture on the wind-
shield when the air-conditioning system is
switched on
R the battery's condition of charge is too low
Shifting the transmission to position Pdoes
not start the engine
Deactivating/activating the ECO start/
stop function
X To deactivate: press ECO button :.
Indicator lamp ;goes out.
X To activate: press ECO button :.
Indicator lamp ;lights up.
If the indicator lamp on the ECO button is off, the ECO start/stop function has been deac-
tivated manually or as the result of a mal-
function.
140Driving
Driving an d parking

ProblemPossible causes/consequences andMSolutions
The engine is not run-
ning smoothly and ismisfiring.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at a qualified specialistworkshop.
The coolant tempera-
ture gauge shows a
value above 248 ‡
(120 †). The coolant
warning lamp may also
be on 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.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level ( Ypage 273). 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 position Dor R,
the vehicle could pull away suddenly. There is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
GWARNING
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 parkingbrake.
Bear in mind that the power transmission
between the engine and the transmission is
interrupted when the engine is switched off. To prevent the vehicle from rolling away:
R when the engine is switched off and the
vehicle is stationary shift the automatic
transmission to park position Pand
R apply the electric parking brake
DIRECT SELECT lever
Overview of transmission positions
jPark position with parking lock
kReverse gear
iNeutral
hDrive
The DIRECT SELECT lever is on the right of the
steering column.
142Automatic transmission
Driving and parking

The DIRECT SELECT lever always returns to
its original position. The current transmissionposition P,R ,N or Dappears in the transmis-
sion position display in the multifunction dis- play ( Ypage 143).
Transmission position and drive pro-
gram display
!If the transmission position display in the
multifunction display is not working, you
should pull away carefully to check whether
the desired transmission position is
engaged. Ideally, you should select trans-
mission position Dand drive program Eor
S .
:Transmission position display
;Drive program display
The current transmission position and drive
program appear in the multifunction display.
The arrows in the transmission position dis-
play show how and into which transmission
positions you can shift using the DIRECT
SELECT lever.
Engaging park position P
!If the engine speed is too high or the vehi-
cle is moving, do not shift the automatic
transmission directly from Dto R, from Rto
D or directly to P. The automatic transmis-
sion could otherwise be damaged.
jPark position with parking lock
kReverse gear
iNeutral
hDrive
X Push the DIRECT SELECT lever in the direc-
tion of arrow P.
Transmission position display Pis shown in
the multifunction display.
When you have engaged park position P,
make sure that the transmission position dis-
play shows Pin the multifunction display.
You can only engage park position Pwhen the
vehicle is stationary.
Depressing the brake and pushing the
DIRECT SELECT lever up or down disengages the parking lock. The transmission is in N
neutral.
At transmission fluid temperatures below Ò 4 ‡ ( Ò20 †), you can only shift out of park
position Pinto another transmission position
when the engine is running.
In order to shift from park position Pdirectly
into Ror D:
R depress the brake pedal and
R push the DIRECT SELECT lever up or down
past the first point of resistance
Engaging park position P automatically
Park position Pis automatically engaged if:
R you switch off the engine using the Smart-
Key and remove the SmartKey
R you switch off the engine using the Smart-
Key or using the Start/Stop button and
Automatic transmission143
Driving and parking
Z

open the driver's door or front-passenger door
R the driver's door is opened when the vehi-
cle is stationary or driving at very low speed
and the transmission is in position Dor R
Engaging reverse gear R
!Only shift the automatic transmission to R
when the vehicle is stationary.
X If the transmission is in position Dor N:
push the DIRECT SELECT lever up past the first point of resistance.
X If the transmission is in position P: depress
the brake pedal and push the DIRECT
SELECT lever up past the first point of
resistance.
The ECO start/stop function is not available
when reverse gear is engaged. Further infor-
mation on the ECO start/stop function( Y page 139).
Shifting to neutral N
GWARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. X
If the transmission is in position Dor R:
push the DIRECT SELECT lever up or down to the first point of resistance.
X If the transmission is in position P: depress
the brake pedal and push the DIRECT
SELECT lever up or down to the first point of
resistance.
If you switch the engine off with the trans-
mission in position Ror D, the automatic
transmission shifts to Nautomatically.
With the SmartKey: if you then open the
driver's door or the front-passenger door or
remove the SmartKey from the ignition, the
automatic transmission shifts to Pautomati-
cally.
With the Start/Stop button: if you then
open the driver's door or the front-passenger door, the automatic transmission shifts to P
automatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the
vehicle cleaned in an automatic car wash with
a towing system:
Using the SmartKey:
X Switch on the ignition.
X Depress the brake pedal and keep it depressed.
X Shift to neutral N.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the ignition and leave the Smart-
Key in the ignition lock.
With the Start/Stop button: X Remove the Start/Stop button from the
ignition lock.
X Insert the SmartKey into the ignition lock.
X Switch on the ignition.
X Depress the brake pedal and keep itdepressed.
X Shift to neutral N.
X Release the brake pedal.
144Automatic transmission
Driving and parking

XRelease the electric parking brake.
X Switch off the ignition and leave the Smart-
Key in the ignition lock.
Engaging drive position D
X If the transmission is in position Ror N:
push the DIRECT SELECT lever down past
the first point of resistance.
X If the transmission is in position P: depress
the brake pedal and push the DIRECT
SELECT lever down past the first point of
resistance.
Transmission positions
BPark position
This prevents the vehicle from roll- ing away when stopped.
Do not shift the transmission into
position P(Y page 143) unless the
vehicle is stationary. The parking
lock should not be used as a brake when parking. Always apply the
electronic parking brake in addi-
tion to the parking lock in order to
secure the vehicle.
If the vehicle electronics are mal-
functioning, the transmission may
be locked in position P. Have the
vehicle electronics checked imme-
diately at a qualified specialist
workshop.
Park position Pis automatically
engaged if: R you switch off the engine using
the SmartKey and remove the
SmartKey
R you switch off the engine using
the SmartKey or using the Start/
Stop button and open the driv-
er's door or front-passenger
door
R the driver's door is opened when
the vehicle is stationary or driv-
ing at very low speed and the
transmission is in position Dor R
CReverse gear
Only shift the transmission to R
when the vehicle is stationary.
Automatic trans mission145
Driving and parking
Z

ANeutral
Do not shift the transmission toN
while driving. Otherwise, the auto-
matic transmission could be dam-
aged.
No power is transmitted from the
engine to the drive wheels.
Releasing the brakes will allow you
to move the vehicle freely, e.g. to
push it or tow it.
If ESP ®
is deactivated or faulty:
shift the transmission to position N
if the vehicle is in danger of skid-
ding, e.g. on icy roads.
If you switch the engine off with the transmission in position Ror D, the
automatic transmission shifts to N
automatically.
!Rolling in neutral Ncan damage
the drive train.
7Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Driving tips
Changing gear
The automatic transmission shifts to the indi- vidual gears automatically when it is in trans-
mission position D. This automatic gear shift-
ing behavior is determined by:
R the selected drive program ( Ypage 147)
R the position of the accelerator pedal (Y page 146)
R the road speed
Accelerator pedal position
Your style of driving influences how the auto-
matic transmission shifts gear:
R little throttle: early upshifts
R more throttle: late upshifts
Holding the vehicle stationary on uphill
gradients
GWARNING
If the clutch overheats, the electronic man-
agement system is automatically deactivated. This interrupts the power transmission. The
vehicle may, for example, roll backwards on
gradients. There is a risk of an accident.
Never hold the vehicle stationary on uphill
gradients by depressing the accelerator.
The clutch may overheat if you hold the vehi- cle stationary on uphill gradients by depress- ing the accelerator pedal. If the clutch over-
heats, a warning tone sounds.
The
Stop Vehicle Shift to P Leave
EngineRunningdisplay message appears in
the multifunction display. You will only be
able to continue your journey once the clutch
has cooled down and the display message in
the multifunction display has disappeared.
Never hold the vehicle stationary on uphill
gradients by depressing the accelerator.
Instead, only ever hold the vehicle stationary
on uphill gradients by:
R depressing the brake pedal
R activating the HOLD function
R engaging the electric parking brake
Kickdown
Use kickdown for maximum acceleration.
X Depress the accelerator pedal beyond the
pressure point.
The automatic transmission shifts to a
lower gear depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached.
The automatic transmission shifts back up.
For further information on kickdown in man-
ual drive program M(Y page 148).
146Automatic transmission
Driving an d parking