2015 MERCEDES-BENZ B-CLASS SPORTS ignition

Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not start.The HOLD function or DISTRONIC PLUS is activated.
X Deactivate the HOLD function ( Ypage 170) or DISTRONIC
PLUS ( Ypage 163).
X Try to start the engine again.
The engine does not
start. The starter motor
can be heard.R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
Before attempting to start the engine again: X Turn the key to position 0in the ignition lock.
or
X Press the Start/Stop button repeatedly until all indicator lamps
in the instrument cluster go out.
X Try to start the engine again ( Ypage 137). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts: X Consult a qualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle ( Ypage 293).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
X Allow the starter motor to cool down for approximately two minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Driving141
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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
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!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 again during 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.
For further information on fuel and fuel quality ( Y page 335).
Refueling
General information
The fuel filler flap is unlocked or locked auto- matically when you unlock or lock the vehicle
with the key.
The position of the fuel filler cap is displayed æ in the instrument cluster. The arrow on
the filling pump indicates the side of the vehi-
cle.
Opening the fuel filler flap
:To open the fuel filler flap
;Tire pressure table
=To insert the fuel filler cap
?Instruction label for fuel type to be refu- eled
X Vehicles without KEYLESS-GO: remove
the SmartKey from the ignition lock.
X Vehicles with KEYLESS-GO start-func-
tion or KEYLESS-GO: open the driver's
door.
The on-board electronics now have status0 . This is the same as the SmartKey having
been removed.
X Press the fuel filler flap in the direction ofarrow :.
The fuel filler flap swings up.
X Turn the fuel filler cap counterclockwise
and remove it.
X Insert the fuel filler cap into the holder on
the inside of fuel filler flap =.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
X Only fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump
stops filling for the first time. Otherwise, fuel
may leak out.
Closing the fuel filler flap
X Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
Close the fuel filler flap before locking the vehicle.
If you are driving with the fuel filler cap open, the 8 reserve fuel warning lamp flashes. A
message appears in the multifunction display
( Y page 225).
In addition, the ;Check Engine warning
lamp may light up ( Ypage 244).
For further information on warning and indi-
cator lamps in the instrument cluster, see( Y page 244).
Refueling151
Driving and parking
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Problems with fuel and the fuel tank
ProblemPossible causes/consequences andMSolutions
Fuel is leaking from the
vehicle.The fuel line or the fuel tank is faulty.
GWARNING
Risk of explosion or fire.
X Turn the SmartKey to position 0immediately and remove it
( Y page 135).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop.
The fuel filler flap can-
not be opened.The fuel filler flap is not unlocked.
X Unlock the vehicle ( Ypage 70).
The SmartKey battery is discharged or nearly discharged.
X Unlock the vehicle using the mechanical key ( Ypage 72).
The fuel filler flap is unlocked, but the opening mechanism is jam- med.
X Consult a qualified specialist workshop.
Parking
Important safety notes
GWARNING
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-
rials come into contact with parts of the vehi- cle which are hot. Take particular care not to
park on dry grassland or harvested grainfields.
GWARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking 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
SmartKey with you and lock the vehicle. Never
leave children unsupervised 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 electric parking brake must be applied.
R the transmission must be in position Pand
the transmission position display mustshow P.
R the SmartKey must be removed from the
ignition lock.
R on uphill or downhill gradients, the front
wheels must be turned towards the curb.
152Parking
Driving and parking

Switching off the engine
Important safety notes
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.
Vehicles with automatic transmission
X Apply the electric parking brake.
X Shift the transmission to position P.
X With the SmartKey: turn the SmartKey to
position 0in the ignition lock and remove it.
The immobilizer is activated.
X With the Start/Stop button: press the
Start/Stop button ( Ypage 135).
The engine stops and all the indicator
lamps in the instrument cluster go out.
When the driver's door is closed, this cor-
responds to key position 1. When the driv-
er's door is open, this corresponds to keyposition 0: "Key removed".
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 itdepressed.
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.
X Release the electric parking brake.
X Switch off the ignition and leave the Smart-
Key in the ignition lock.
If you attempt to turn off the engine when the
selector lever is not in position P:
R a message appears in the multifunction dis-
play
R a warning signal sounds
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking 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.
Parking153
Driving and parking
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When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Neverleave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction
in the system, it may not be possible to apply the released parking brake.
X If this is the case, only park the vehicle on
level ground and secure it to prevent it roll-
ing away.
X Shift the automatic transmission to posi-tion P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or there is a malfunction in the system. Contact
a qualified specialist workshop.
The electric parking brake performs a func-
tion 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
X To engage: push handle :.
When the electric parking brake is
engaged, the !red indicator lamp lights
up in the instrument cluster.
The electric parking brake can also be
applied when the SmartKey is removed.
X To release: pull handle:.
The red !indicator lamp in the instru-
ment cluster goes out. The electric parking brake can only bereleased:
R when the SmartKey is in position 1or 2in
the ignition lock ( Ypage 135) or
R if the ignition was switched on using the
Start/Stop button
Applying automatically
The electric parking brake is automatically
applied when the transmission is in position P
and:
R the engine is switched off or
R the driver is not wearing a seat belt and the
driver's door is opened.
To prevent the electric parking brake from
being automatically applied, pull handle :.
The electric parking brake is also engaged
automatically if:
R DISTRONIC PLUS brings the vehicle to a
standstill or
R the HOLD function is keeping the vehicle
stationary
R Active Parking Assist is keeping the vehicle
stationary
In addition, at least one of the following con-
ditions must be fulfilled:
R there is a system malfunction.
R the power supply is insufficient.
R the vehicle is stationary for a lengthyperiod.
The red !indicator lamp in the instrument
cluster goes out.
The electric parking brake is not automati-
cally engaged if the engine is switched off by the ECO start/stop function.
Releasing automatically
Your vehicle's electric parking brake is auto-
matically released if all of the following con-
ditions are met:
R the engine is running.
R the transmission is in position Dor R.
154Parking
Driving and parking

Rthe seat belt has been fastened.
R you depress the accelerator pedal.
If the transmission is in position R, the tailgate
must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted out of transmission posi-
tion Por you have previously driven faster
than 2 mph (3 km/h).
Ensure that you do not depress the acceler-
ator pedal unintentionally. Otherwise the
parking brake will be released and the vehicle will start to move.
Emergency braking
The vehicle can also be braked during an
emergency by using the electric parking
brake.
X While driving, push handle :of the electric
parking brake ( Ypage 153).
The vehicle is braked as long as you keep
handle :of the electric parking brake
pressed. The longer the electric parking
brake handle :is depressed, the greater
the braking force.
During braking:
R a warning tone sounds
R the
Release park. brakemessage
appears
R the red !indicator lamp in the instru-
ment cluster flashes
When the vehicle has been braked to a stand- still, the electric parking brake is engaged.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than four weeks, the battery may be damaged by
exhaustive discharging. If you leave the vehicle parked for longer than
six weeks, the vehicle may suffer damage as a result of lack of use.
X Visit a qualified specialist workshop and
seek advice.
iYou can obtain information about trickle
chargers from a qualified specialist work-
shop.
Driving tips
General notes
Important safety notes
GWARNING
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.
GWARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from traffic conditions. You could also lose controlof the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicleis stationary.
Observe the legal requirements for the coun- try in which you are driving. Some jurisdic-
tions prohibit the driver from using a mobile
phone while driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 ft (approximately 14 m) per
se cond.
Driving tips155
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