tow MERCEDES-BENZ B-Class 2017 W246 Service Manual

Extending/retracting the cargo com-
partment cover X
To extend: pull the cargo compartment cover
back by grab handle 0043and clip it into retain-
ers 0044on the left and right.
X To retract: unhook the cargo compartment
cover from retainers 0044on the left and right
and guide it forwards by grab handle 0043until
it is fully retracted.
Installing/removing the cargo compart- ment cover X
To remove: make sure that the cargo com-
partment cover is rolled up.
X Push in the end cap of cargo compartment
cover 0043in the direction of the arrow on the
right or left-hand side using grip 0087on the
lower edge.
X Push cargo compartment cover 0043into oppo-
site anchorage 0044.
X Remove cargo compartment cover 0043
upwards. X
To install: set cargo compartment cover 0043
on the right or left-hand side in anchorage 0044.
X Push in the opposite end cap of cargo com-
partment cover 0043and insert cargo compart-
ment cover 0043into opposite anchorage 0044. Cargo net
Important safety notes G
WARNING
On its own, the cargo net cannot secure or
restrain heavy objects, items of luggage and
heavy loads. You could be hit by an unsecured load during sudden changes in direction,
braking or in the event of an accident. There isan increased risk of injury or even fatal injury.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping over, e.g. by
using tie downs, even if you are using the
cargo net.
It is important to use a cargo net if you load the
vehicle with small objects above the seat backr- ests. For safety reasons, always use a cargo net
when transporting loads.
Damaged cargo nets can no longer fulfill their
protective function and must be replaced. Visit a qualified specialist workshop.
Attaching and tightening the cargo net You have two options for hooking in the cargo
net:
R with cargo compartment enlargement: the
brackets are behind the B‑pillar and the cargo
tie-down rings to tension the net are on the
sides of the rear-compartment footwell.
R without cargo compartment enlargement: the
brackets are behind the C-pillar and the cargo tie-down rings to tension the net are in the
cargo compartment (Y page 212).
The cargo net is located in the stowage space
under the cargo compartment floor
(Y page 214). Stowage areas
213Stowage and features Z

X
Open both Velcro fasteners and remove the
cargo net.
X Unroll and unfold the cargo net.
The joints on the upper and lower guide rod
should engage audibly. Example cargo net installed behind the C-pillar
(without cargo compartment enlargement)
X To attach and tighten: insert guide rod0043
into bracket 0044.
X Attach belt hook 0085to the cargo tie-down ring
and pull down on the loose end of the lashing
strap until the cargo net is taut.
X Fold up the two Velcro fasteners on the ends
of the lashing straps and press them firmly
onto the lashing straps above the belt clamps.
X After driving a short distance, check the ten-
sion of the cargo net and retighten it if nec-
essary.
X To loosen and detach: pull belt clamp0087up
to reduce the tension in the lashing strap.
X Unhook belt hook 0085from the cargo tie-down
ring.
X Detach guide rod 0043from bracket 0044.
X To stow:press the red button on the upper
and lower guide rod.
X Fold the cargo net and roll it up.
X Close the two Velcro fasteners on the cargo
net holder. Stowage well under the cargo com-
partment floor
Important safety notes G
WARNING
If you drive when the cargo compartment floor is open, objects could be flung around, thus striking vehicle occupants. There is a risk of
injury, particularly in the event of sudden
braking or a sudden change in direction.
Always close the cargo compartment floor
before a journey.
! The maximum load capacity of the stowage
well under the cargo compartment floor is
55 lbs (25 kg).
There is a stowage area for TIREFIT, the vehicle tool kit, a folding box, etc. underneath the cargo
compartment floor.
Opening/closing the cargo compart-
ment floor X
To open: open the tailgate.
X Holding ribbing 0044, press handle 0043down-
wards.
Handle 0043folds up.
X Swing the cargo compartment floor upwards
using handle 0043until it rests against the cargo
compartment cover. X
Fold out hook 0087on the underside of the
cargo compartment floor. 214
Stowage areasStowage and features

X
Attach hook 0087to the cargo compartment's
upper seal 0085.
X To close: detach hook 0087from upper seal 0085.
X Fasten hook 0087to the bracket on the under-
side of the cargo compartment floor.
X Fold the cargo compartment floor down.
X Press the cargo compartment floor down until
it engages.
Setting the height of the cargo compart- ment floor The stowage well under the cargo compartment
floor can be increased or decreased in size as
necessary. To do this, you can lock the floor at
two different heights. The upper catch gives a
flat load surface when the rear bench seat is
folded forward. X
To raise: using handle 0043, lift up cargo com-
partment floor 0044in the direction of arrow 0087
and pull it upwards.
X Lower cargo compartment floor 0044again. To
do this, push the cargo compartment floor
away so that it engages in the guide on the
upper level.
Cargo compartment floor 0044engages in the
upper position. i
Carry out this step using both hands.
X To lower: raise cargo compartment floor 0044
slightly using handle 0043and pull it towards
you.
X Lower cargo compartment floor 0044again
slowly. Whilst doing so, press the cargo com-
partment floor into the lower level.
Cargo compartment floor 0044engages in the
lower position. Roof carrier
Important safety notes G
WARNING
When you load the roof, the center of gravity
of the vehicle rises and the driving character- istics change. If you exceed the maximum roof
load, the driving characteristics, as well as
steering and braking, will be greatly impaired.There is a risk of an accident.
Never exceed the maximum roof load and
adjust your driving style.
You will find information on the maximum roof
load in the "Technical data" section
(Y page 286).
An incorrectly secured roof carrier or roof load
may become detached from the vehicle. You
must therefore ensure that you observe the roof
carrier manufacturer's installation instructions.
Attaching the roof carrier Stowage areas
215Stowage an d features Z

X
Open and fold the covers 0043upwards care-
fully in the direction of the arrow.
X Only secure the roof carrier to the anchorage
points under covers 0043.
X Observe the manufacturer's installation
instructions. Features
Cup holder
Important safety notes G
WARNING
The cup holder cannot hold a container secure whilst traveling. If you use a cup holder whilsttraveling, the container may be flung around
and liquid may be spilled. The vehicle occu-
pants may come into contact with the liquid
and if it is hot, they may be scalded. You may
be distracted from the traffic conditions and
you could lose control of the vehicle. There is a risk of an accident and injury.
Only use the cup holder when the vehicle is
stationary. Only use the cup holder for con-
tainers of the right size. Always close the con-
tainer, particularly if the liquid is hot. G
WARNING
If you transport objects in the vehicle interior and these are not adequately secured, they
could slip or be flung around and thereby
strike vehicle occupants. In addition, cup
holders, open stowage spaces and mobile
phone brackets may not always be able to
hold the objects placed in them in the event of an accident. There is a risk of injury, particu-
larly in the event of sharp braking or sudden
changes of direction.
R Always stow objects in such a way that they
cannot be tossed about in these or similar
situations.
R Always make sure that objects do not pro-
trude out of the stowage spaces, luggage
nets or stowage nets. R
Ensure that closable stowage spaces are
shut before beginning your journey.
R Always stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or large objects in
the cargo compartment.
! Only use the cup holders for containers of
the right size and which have lids. The drinks could otherwise spill.
Observe the loading guidelines (Y page 207).
The stowage compartments in the doors provide
space for bottles:
R front: capacity up to 51 fl. oz. (1.5 l)
R rear: capacity up to 17 fl. oz. (0.5 l)
Cup holder in the front center console The cup holder and the rubber mat underneath
can be removed for cleaning. Clean them with
clean, lukewarm water only.
X To remove: carefully pull in upper sections of
cup holder 0043on the driver's and front-
passenger sides until they release.
X Lift the cup holder upwards 0044until it can be
removed. 216
FeaturesStowage and features

X
To install: insert cup holder into lateral
curved sections 0044in the stowage compart-
ment. Insert the cup holder so that the wedge of the upper section of cup holder 0043faces
forwards.
X Press the cup holder downwards until it
engages on the right and left-hand sides.
Cup holder in the rear seat armrest !
Do not sit on or support your body weight on
the rear seat armrest when it is folded down,
as you could otherwise damage it.
! Close the cup holder before folding the rear
seat armrest up. Otherwise, the cup holder
could be damaged. X
Fold down the rear seat armrest.
X To open: press the front of cup holder 0043
or 0044.
Cup holder 0043or0044 extends automatically.
X To close: slide cup holder 0043or0044 back until
it engages. Sun visors
Overview G
WARNING
If the mirror cover of the vanity mirror is folded up when the vehicle is in motion, you could be
blinded by incident light. There is a risk of an
accident.
Always keep the mirror cover folded down
while driving. 0043
Mirror light
0044 Bracket
0087 Retaining clip, e.g. for a car park ticket
0085 Vanity mirror
0083 Mirror cover
Vanity mirror in the sun visor Mirror light
0043only functions if the sun visor is
clipped into bracket 0044and mirror cover 0083has
been folded up.
Glare from the side X
Fold down the sun visor.
X Pull the sun visor out of retainer 0044.
X Swing the sun visor to the side. Ashtray
Front ashtray !
The stowage space under the ashtray is not
heat resistant. Before placing lit cigarettes in the ashtray, make sure that the ashtray is
properly engaged. Otherwise, the stowage
space could be damaged. Features
217Stowage an d features Z

X
Vehicles with a stowage compartment
cover:
press the lower section of cover 0043.
The stowage compartment opens.
X To remove the insert: lift insert0087up0044 and
out.
X To re-install the insert: press insert0087into
the holder until it engages.
i If you remove the ashtray insert, you can use
the resulting compartment for stowage.
Rear compartment ashtray X
To open: pull cover 0087out by its top edge.
X To remove: pull insert0044by recess 0043in the
direction of arrow 0085until it audibly releases.
X Lift insert 0044up and out.
X To install the insert: install insert0044from
above into the holder and press down until it
engages. Cigarette lighter
G
WARNING
You can burn yourself if you touch the hot
heating element or the socket of the cigarette lighter.
In addition, flammable materials can ignite if:
R the hot cigarette lighter falls
R a child holds the hot cigarette lighter to
objects, for example
There is a risk of fire and injury.
Always hold the cigarette lighter by the knob.
Always make sure that the cigarette lighter is
out of reach of children. Never leave children unsupervised in the vehicle. Your attention must always be focused on the
traffic conditions. Only use the cigarette lighter when road and traffic conditions permit. X
Turn the SmartKey to position 2in the ignition
lock (Y page 109).
X Vehicles with a stowage compartment
cover: press the lower section of cover 0043.
The stowage compartment opens.
X Press in cigarette lighter 0044.
Cigarette lighter 0044will pop out automatically
when the heating element is red-hot. 12 V sockets
General notes X
Turn the SmartKey to position 1in the ignition
lock (Y page 109).
The sockets can be used for accessories with a maximum draw of 180 W (15 A). Accessories
include such items as chargers for mobile
phones.
If the sockets are used for a very long time the
battery may discharge.
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the sock-
ets is automatically cut.
Socket in the front center console X
Vehicles with a stowage compartment
cover:
press the lower section of the cover.
The stowage compartment opens.
X Lift up the cover of the socket. 218
FeaturesStowage and features

Socket in the rear compartment center
console X
Pull the cover out by the top of the handle
edge.
X Lift up the cover of the socket.
Socket in the cargo compartment X
Lift up the cover of socket 0043.mbrace
General notes The mbrace system is only available in the USA.
You must have a license agreement to activate
the mbrace service. Make sure that your system is activated and operational. To log in, press the
00D9 MB Info call button. If any of the steps
mentioned are not carried out, the system may
not be activated.
If you have questions about the activation, con- tact one of the following telephone hotlines:
Mercedes-Benz Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372) or
1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will be
sent to you by mail. You can use this password
to log onto the mbrace area under "Owners
Online" at http://www.mbusa.com.
The system is available if:
R it has been activated and is operational
R the corresponding mobile phone network is
available for transmitting data to the Cus-
tomer Center
R a service subscription is available Determining the location of the vehicle on a map
is only possible if:
R GPS reception is available.
R the vehicle position can be forwarded to the
Customer Assistance Center
The mbrace system To adjust the volume during a call, proceed as
follows:
X Press the 0081or0082 button on the multi-
function steering wheel.
or X Use the multimedia system's volume control.
The system offers various services, e.g.:
R Automatic and manual emergency call
R Roadside Assistance call
R MB Info call
You can find information and a description of all
available features under "Owners Online" at
http://www.mbusa.com.
System self-test After you have switched on the ignition, the sys-
tem carries out a self-diagnosis.
A malfunction in the system has been detected if one of the following occurs:
R The indicator lamp in the SOS button does not
come on during the system self-test.
R The indicator lamp in the 0052Roadside
Assistance button does not light up during
self-diagnosis of the system.
R The indicator lamp in the 00D9MB Info call
button does not light up during self-diagnosis
of the system.
R The indicator lamp in one or more of the fol-
lowing buttons continues to light up red after
the system self-diagnosis:
- SOS button
- 0052 Roadside Assistance call button
- 00D9 MB Info call button
R The Inoperative
Inoperative or theService Not Service Not
Activated
Activated message appears in the multi-
function display after the system self-diagno-
sis.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In the event of an emergency, help will have to be
summoned by other means. Features
219Stowage and features Z

X
To end a call: press the0076button on the
multifunction steering wheel.
or X Press the corresponding multimedia system
button for ending a phone call.
X After the emergency call, close cover 0043.
If the mobile phone network is unavailable,
mbrace will not be able to make the emergency
call. If you leave the vehicle immediately after
pressing SOS button 0044, you do not know if
mbrace has successfully made the emergency
call. In this case, always summon assistance by other means.
Roadside Assistance button X
To make a call: press Roadside assistance
call button 0043.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center.
The indicator lamp in Roadside assistanc but- ton 0043flashes while the call is active. The
Connecting Call
Connecting Call message appears on the
multifunction display. The audio output is
muted.
If a connection can be established, the Call
Call
Connected Connected message appears in the multifunc-
tion display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
R current location of the vehicle
R vehicle identification number
The display of the multimedia system indicates
that a call is active. During the call, you can
change to the navigation menu by pressing the
NAVI button on the multimedia system, for
example.
Voice output is not available in this case. A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
From the remote malfunction diagnosis, the
Mercedes-Benz Customer Assistance Center
can ascertain the nature of the problem
(Y
page 224).
The Mercedes-Benz Customer Assistance Cen-
ter either sends a qualified Mercedes-Benz tech-
nician or makes arrangements for your vehicle
to be transported to the nearest Mercedes-Benz
Service Center.
You may be charged for services such as repair work and/or towing.
You can find more information in the separate
mbrace manual.
The system has not been able to initiate a Road-
side assistance call, if:
R the 0052 indicator lamp for the Roadside
assistance call button is flashing continu-
ously.
R no voice connection to the Mercedes-Benz
Customer Assistance Center was estab-
lished.
This can occur if the relevant mobile phone net- work is not available, for example.
The Call Call Failed
Failed message appears on the mul-
tifunction display.
X To end a call: press the0076button on the
multifunction steering wheel.
or X Press the corresponding multimedia system
button for ending a phone call.
MB Info call button X
To make a call: press MB Info call button 0043.
This initiates a call to the Mercedes-Benz Cus-
tomer Assistance Center. Features
221Stowage an d features Z

The indicator lamp in MB Info call button
0043
flashes while the connection is being made.
The Connecting Call
Connecting Call message appears on
the multifunction display. The audio output is
muted.
If a connection can be established, the Call
Call
Connected Connected message appears in the multifunc-
tion display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
R current location of the vehicle
R vehicle identification number
The display of the multimedia system indicates
that a call is active. During the call, you can
change to the navigation menu by pressing the
NAVI button on the multimedia system, for
example.
Voice output is not available in this case.
A voice connection is established between the
Mercedes-Benz Customer Assistance Center
and the vehicle occupants.
You receive information about operating your
vehicle, about the nearest Mercedes-Benz Ser-
vice Center and about other products and serv- ices from Mercedes-Benz.
You can find further information on the mbrace
system under "Owners Online" at http://
www.mbusa.com.
The system has not been able to initiate an MB
Info call, if:
R the indicator lamp in MB Info call button 00D9
is flashing continuously.
R no voice connection to the Mercedes-Benz
Customer Assistance Center was estab-
lished.
This can occur if the relevant mobile phone net-
work is not available, for example.
The Call
Call Failed Failed message appears on the mul-
tifunction display.
X To end a call: press the0076button on the
multifunction steering wheel.
or X Press the corresponding multimedia system
button for ending a phone call. Call priority When service calls are active, e.g. Roadside
Assistance or MB Info calls, an emergency call
can still be initiated. In this case, an emergency
call will take priority and override all other active
calls.
The indicator lamp of the respective button
flashes until the call is ended.
An emergency call can only be terminated by the
Mercedes-Benz Customer Assistance Center.
All other calls can be ended by pressing:
R the 0076 button on the multifunction steering
wheel
R the corresponding button in the multimedia
system to end the voice call
When a call is initiated, the audio system is
muted.
The mobile phone is no longer connected to the
multimedia system.
However, if you want to use your mobile phone, do so only when the vehicle is stationary and ina safe location.
Downloading destinations Downloading destinations
Downloading destinations gives you access to a database with over 15 million points of interest(POIs). These can be downloaded on the navi-
gation system in your vehicle. If you know the
destination, the address can be downloaded.
Alternatively, you can obtain the location of
Points of Interest (POIs)/important destinationsin the vicinity.
Furthermore, you can download routes with up
to four way points.
You are prompted to confirm route guidance to
the address entered.
X SelectYes Yesby turning 3or sliding 1
the controller and confirm with 7.
The system calculates the route and subse-
quently starts the route guidance with the
address entered.
If you select No Nothe address can be stored in
the address book. 222
FeaturesStowage and features

The destination download function is available
if:
R the vehicle is equipped with a navigation sys-
tem.
R the relevant mobile phone network is availa-
ble and data transfer is possible.
Route Assistance This service is part of the mbrace PLUS Packageand cannot be purchased separately.
You can use the Route Assistance function even
if the vehicle is not equipped with a navigation
system.
Within the framework of this service, you receive a professional and reliable form of navigation
support without having to leave your vehicle.
The customer service representative finds a
suitable route depending on your vehicle's cur-
rent position and the desired destination. You
will then be guided live through the current route section.
Search & Send General notes
To use "Search & Send", your vehicle must be
equipped with mbrace and a navigation system. Additionally, an mbrace service subscription
must be completed.
"Search & Send" is a destination entry service. A
destination address found on Google Maps™
can be transferred via mbrace directly to your
vehicle's navigation system.
Specifying and sending the destination
address
X Go to the website http://maps.google.com
and enter a destination address into the entry
field.
X To send the destination address to the e-
mail address of your mbrace account:
click on the corresponding button on the web-
site.
Example:
If you select 'Send to vehicle' and then
'Mercedes-Benz', the destination address will be sent to your vehicle.
X When the "Send" dialog window appears: Enter the e-mail address you specified when
setting up your mbrace account into the cor-
responding field.
X Click "Send".
Information on specific commands such as
"Address entry" or "Send" can be found on the
website.
Calling up a transmitted destination
address
X Turn the SmartKey to position 2in the ignition
lock (Y page 109).
The transmitted destination address is loaded into the vehicle's navigation system.
A display message appears, asking whether
navigation should be started.
X SelectYes Yesby turning 3or sliding 1
the controller and confirm with 7.
The system calculates the route and subse-
quently starts the route guidance with the
address entered.
If you select No Nothe address can be stored in
the address book.
If you have sent more than one destination
address, each individual destination must be
confirmed separately.
Destination addresses are loaded in the same
order as the order in which they were sent.
If you own multiple Mercedes-Benz vehicles with
mbrace and activated mbrace accounts:
If multiple vehicles are registered under the
same e-mail address, the destination will be
sent to all the vehicles.
Vehicle remote opening You can use the vehicle remote opening if you
have unintentionally locked your vehicle and a
replacement SmartKey is not available.
The vehicle can be opened by the Mercedes-
Benz Customer Assistance Center.
The vehicle can be immediately opened
remotely within four days of the ignition being
turned off. After this time, the remote unlocking
may be delayed by 15 to 60 minutes. After
30 days, the vehicle can no longer be opened
remotely.
The vehicle remote unlocking feature is availa-
ble if the relevant mobile phone network is avail- able and a data connection is possible.
X Contact the following service hotlines: Features
223Stowage and features Z