2014 MERCEDES-BENZ B-CLASS HATCHBACK tow

Introduction ................................... 240
Menu (on-board computer) ............ 240
Number from the phone book ........ 241
Redialling ....................................... 241
Rejecting/ending a call .................2 41
Telephone compartment ................ 300
Temperature
Coolant .......................................... 232
Outside temperature ..................... .233
Setting (climate control) ................ 144
TEMPOMAT
Function/notes ............................ .188
Through-loading ................................ 302
TIREFIT kit .......................................... 335
Top Tether ............................................ 59
Total distance recorder .................... 236
Tow-away protection
Activating ......................................... 81
Deactivating ..................................... 81
Function .......................................... .81
Tow-starting
Emergency engine starting ............ 348
Fitting the towing eye .................... 346
Important safety notes .................. 344
Removing the towing eye ............... 346
Towing
Important safety notes .................. 344
Notes for 4MATIC vehicles ............ 348
Transporting the vehicle ................ 347
Towing a trailer
Active Parking Assist ..................... 206
Axle load, permissibl e.................... 396
ESP ®
(Electronic Stability Pro-
gram) ............................................... 79
Failure check for LEDs ................... 229
General notes ................................ 225
Pulling away with a traile r.............. 163
Towing away
Fitting the towing ey e.................... 346
Removing the towing eye ............... 346
With both axles on the ground ....... 347
With front axle raised ..................... 346
Towing eye ......................................... 333
Traffic Sign Assist
Activating ....................................... 219 Activating/deactivating the mes-
sage function (colour multifunc-
tion display) ................................... 243
Activating/deactivating the warn- ing function (colour multifunction
display ).......................................... 243
Display message ............................ 274
Displaying (black and white multi-
function display) ............................ 243
Function/note s............................. 218
Important safety notes .................. 219
Instrument cluster display ............. 219
Trailer
Display message ............................ 281
Trailer coupling
see Towing a trailer
Trailer towing
7-pin connecto r............................. 229
Blind Spot Assist ............................ 222
Cleaning the trailer tow hitch ......... 328
Coupling up a traile r...................... 227
Decoupling a trailer ....................... 227
Driving tip s.................................... 225
Folding in the ball coupling ............ 228
Folding out the ball coupling .......... 226
Important safety notes .................. 224
Lights display message .................. 265
Mounting dimensions .................... 394
Power supply ................................. 228
Trailer load s................................... 396
Transmission
see Automatic transmission
see Manual transmission
Transmission position display
(DIRECT SELECT lever) ...................... 170
Transporting the vehicle .................. 347
Trim pieces (cleaning instruc-
tions) .................................................. 330
Trip computer (on-board com-
puter) .................................................. 236
Trip meter
Calling up ....................................... 236
Resetting (on-board computer) ...... 237
Turn signals
Changing bulbs (front) ................... 130
Changing bulbs (rear) .................... 131
Switching on/of f........................... 125 18
Index

depressed pedal. This jeopardises the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribed in order to ensure that there is always sufficient room for the pedals. Do not use
loose floormats and do not place several floor-mats on top of one another.
! If the engine is switched off and equip-
ment on the diagnostics connection is
used, the starter battery may discharge.
Connecting equipment to the diagnostics
connection can lead to emissions monitoring information being reset, for example. This
may lead to the vehicle failing to meet the
requirements of the next emissions test dur-
ing the main inspection. Qualified specialist workshop
A qualified specialist workshop has the nec-
essary special skills, tools and qualifications
to correctly carry out any necessary work on
your vehicle. This particularly applies to work
relevant to safety.
Observe the notes in the Service Booklet.
Always have the following work carried out at a qualified specialist workshop:
R work relevant to safety
R service and maintenance work
R repair work
R modifications, installations and conver-
sions
R work on electronic components
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre. Vehicle registration
Mercedes-Benz may ask its Service Centres
to carry out technical inspections on certain vehicles. The quality or safety of the vehicle is
improved as a result of the inspection.
Mercedes-Benz can only inform you about
vehicle checks if it has your registration data.
It is possible that your vehicle has not yet
been registered in your name in the following
cases:
R if your vehicle was not purchased at an
authorised specialist dealer.
R if your vehicle has not yet been examined at
a Mercedes-Benz Service Centre.
It is advisable to register your vehicle with a
Mercedes-Benz Service Centre.
Inform Mercedes-Benz as soon as possible
about any change in address or vehicle own-
ership. You can do this at a Mercedes-Benz
Service Centre, for example. Correct use
If you remove any warning stickers, you or
others could fail to recognise certain dangers.
Leave warning stickers in position.
Observe the following information when driv- ing your vehicle:
R the safety notes in this manual
R the vehicle technical data
R traffic rules and regulations
R laws and safety standards pertaining to
motor vehicles Implied warranty
! Follow the instructions in this manual
about the proper operation of your vehicle
as well as about possible vehicle damage.
Damage to your vehicle that arises from
culpable contraventions against these
instructions are not covered either by
Mercedes-Benz implied warranty or by the
New or Used-Vehicle Warranty. 24
Introduction

Centre console, lower section
i
Vehicles with DIRECT SELECT lever Function Page
:
Ashtray 311
Cigarette lighter 312
Power socket 312
Stowage compartment 299
;
Stowage compartment 299 Function Page
=
Cup holders 310
?
Stowage compartment with
Media Interface 299
A
Audio/COMAND controller
(see the separate operating
instructions) 34
Centre consoleAt a glance

Overhead control panel
Function Page
:
u
Switches the rear
interior lighting on/off 127
;
p
Switches the right-
hand reading lamp on/off 127
=
|
Switches the front
interior lighting/automatic
interior lighting control off 127
?
ë
Deactivates tow-
away protection 81
A
Rear-view mirror 115
B
ê
Deactivates the inte-
rior motion sensor 82 Function Page
C
G
SOS button
(Mercedes-Benz emer-
gency call system) 313
D
Spectacles compartment 299
E
3
Opens/closes the
panorama sliding sunroof
with roller sunblinds 103
F
c
Switches the front
interior lighting on 127
G
p
Switches the left-
hand reading lamp on/off 12736
Overhead control panelAt a glance

Function Page
:
u
Switches the rear
interior lighting on/off 127
;
p
Switches the right-
hand reading lamp on/off 127
=
|
Switches the front
interior lighting/automatic
interior lighting control off 127
?
ë
Deactivates tow-
away protection 81
A
Rear-view mirror 115 Function Page
B
ê
Deactivates the inte-
rior motion sensor 82
C
Spectacles compartment 299
D
3
Opens/closes the
panorama sliding sunroof
with roller sunblinds 103
E
c
Switches the front
interior lighting on 127
F
p
Switches the left-
hand reading lamp on/off 127Overhead control panel
37At a glance

The shoulder section of the seat belt must
always be routed across the centre of the
shoulder. Adjust the belt outlet if necessary.
X To raise: slide the belt outlet upwards.
The belt outlet will engage in various posi-
tions.
X To lower: hold belt outlet release ?and
slide belt outlet downwards.
X Let go of belt outlet release ?in the
desired position and make sure that the
belt outlet engages.
Seat belt for the centre rear seat If the left-hand rear seat backrest is folded
down and back up again, the rear centre seat
belt may lock. The seat belt can then not be
pulled out.
X To release the rear centre seat belt: pull
the seat belt out approximately 20 mm at
the belt outlet on the backrest and then
release it again.
The seat belt is retracted and released.
Releasing the seat belts !
Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt. Dam- aged seat belts can no longer fulfil their
protective function and must be replaced.
Visit a qualified specialist workshop. X
Press release button :, hold belt
tongue ;firmly and guide it back towards
belt outlet =.
Seat belt adjustment The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. This
function adjusts the driver's and front-
passenger seat belt to the upper body of the
occupants.
The belt strap is tightened slightly when:
R the seat belt tongue is engaged in the belt
buckle and
R the ignition is switched on
The seat-belt adjustment will apply a certain
tightening force if any slack is detected
between the vehicle occupant and the seat
belt. Do not hold on to the seat belt tightly
while it is adjusting.
You can switch the seat-belt adjustment on
and off in the on-board computer
(Y page 249).
Belt warning for the driver and front
passenger The
7 seat belt warning lamp in the instru-
ment cluster reminds you that all vehicle
occupants must fasten their seat belts. It may Occupant safety
45Safety Z

are unable to perform their intended protec-
tive function. This poses an increased risk of
injury or even fatal injury.
Therefore, have pyrotechnic belt tensioners
which have been triggered immediately
replaced at a qualified specialist workshop.
Mercedes-Benz recommends that you have
the vehicle towed to a qualified specialist
workshop after an accident. Take this into
account, particularly if a seat belt tensioner
was triggered or an airbag was deployed.
An electric motor is used by PRE-SAFE ®
to
trigger the tightening of the seat belt in haz-
ardous situations. This procedure is reversi-
ble.
If the belt tensioners are triggered or an air-
bag is deployed, you will hear a bang, and a
small amount of powder may also be
released. The 6restraint system warning
lamp lights up.
Only in rare cases will the bang affect your
hearing. In general, the powder released is
not hazardous to health but may cause short- term breathing difficulties to persons suffer-
ing from asthma or other pulmonary condi-
tions. Provided it is safe to do so, you should
leave the vehicle immediately or open the
window in order to prevent breathing difficul- ties.
Operation During the first stage of a collision, the
restraint system control unit evaluates impor-
tant physical data relating to vehicle deceler- ation or acceleration, such as:
R duration
R direction
R intensity
Based on the evaluation of this data, the
restraint system control unit triggers the seat belt tensioners in the event of a head-on or
rear collision. A seat belt tensioner can only be triggered if:
R the ignition is switched on
R the components of the restraint system are
operational; see "Restraint system warning lamp" (Y page 41)
R the belt tongue has engaged in the belt
buckle of the respective front seat
The seat belt tensioners in the rear compart-
ment are triggered independently of the lock
status of the seat belts.
If the restraint system control unit detects a
high severity of an accident, in certain head-
on collisions, additional components of the
restraint system are deployed independently
of each another:
R Front airbags and driver's kneebag
R Windowbag, if the system determines that
deployment can offer additional protection
to that provided by the seat belt
On vehicles with the automatic front-
passenger front airbag deactivation system:
depending on the person in the front-
passenger seat, the front-passenger front air-
bag is either disabled or enabled. The front-
passenger front airbag can only be deployed
in an accident if the PASSENGER AIR BAG ON indicator lamp is lit. Observe the information
on the PASSENGER AIR BAG indicator lamps
(Y page 41).
Your vehicle has two-stage front airbags. In
the first deployment stage, the front airbag is
filled with propellant gas to reduce the risk of
injuries. The front airbag is fully deployed if
the second deployment stage is activated
within a few milliseconds.
The activation threshold for the seat belt ten- sioners and airbags is determined based on
the evaluation of the vehicle's rate of decel-
eration or acceleration at various points in the
vehicle. This process is pre-emptive in nature. The triggering/deployment process should
take place in good time at the start of the
collision. Occupant safety
55Safety Z

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. G
WARNING
If persons (particularly children) are exposed
to heat or cold for a prolonged period, there is a risk of serious or even fatal injuries. Never
leave persons (particularly children) unatten-
ded in the vehicle. G
WARNING
If the child restraint system is placed in direct sunlight, the parts could become very hot.
Children could be suffer burns by touching
these parts, in particular on the metallic parts
of the child restraint system. There is a risk of injury.
If you and your child leave the vehicle, always
make sure that the child restraint system is
not in direct sunlight. Cover it with a blanket, for example. If the child restraint system has
been exposed to direct sunlight, leave it to
cool down before securing the child in it.
Never leave children unattended in the vehi-
cle.
Always ensure that all vehicle occupants have their seat belts fastened correctly and are sit-
ting properly. Particular attention must be
paid to children.
Observe the safety notes on the seat belt
(Y page 42) and the information on the cor-
rect use of the seat belt (Y page 43).Child restraint system
If you fit a rearward-facing child restraint sys- tem to the centre rear seat, the rear arm restmust be folded back as far as possible.
Observe the instructions for correct use of
the child restraint system (Y page 66).For safety reasons, Mercedes-Benz recom-
mends that you only use a child restraint sys-
tem recommended by Mercedes-Benz
(Y page 70). G
WARNING
If the child restraint system is incorrectly fit-
ted on the seat position suitable for this pur-
pose, it cannot perform its intended protec-
tive function. In the event of an accident,
sharp braking or a sudden change in direction, the child may not be held securely. There is an
increased risk of serious or even fatal injuries.
Observe the manufacturer's installation
instructions and the correct use for the child
restraint system. Make sure that the entire
surface of the child restraint system is resting
on the seat surface. Never place objects
under or behind the child restraint system,
e.g. cushions. Only use child restraint sys-
tems with the original cover designed for
them. Only replace damaged covers with gen- uine covers. G
WARNING
If the child restraint system is fitted incor-
rectly or is not secured, it can come loose in
the event of an accident, heavy braking or a
sudden change in direction. The child
restraint system could be thrown about, strik- ing vehicle occupants. There is an increased
risk of injury, possibly even fatal.
Always fit child restraint systems properly,
even if they are not being used. Make sure
that you observe the child restraint system
manufacturer's installation instructions.
You will find further information on stowing
objects, luggage and loads securely under
"Loading guidelines" (Y page 298). G
WARNING
Child restraint systems or their securing sys-
tems that have been damaged or subjected to a load in an accident cannot perform their
intended protective function. In the event of
an accident, sharp braking or a sudden
change in direction, the child may not be held 58
Children in the vehicleSafety