MERCEDES-BENZ C-CLASS ESTATE 2021 Owners Manual

Open the socket cap.Insert the plug with lug 1 in groove 3 on
the socket.Turn bayonet coupling 2 to the right as far as
it will go.Let the cap engage.Secure the cable to the trailer with cable ties (only if you are using an adapter cable).Make sure that the cable is always slack forease of movement during cornering.Under the following conditions, a message may
appear on the driver's display even if the trailer
has been connected correctly:
= LEDs have been installed in the trailer lighting
system.
= The current has fallen below the trailer lighting
system's minimum current (50 mA).%Accessories can be connected to the perma-
nent power supply up to 180 W and to the power supply that is switched on via the igni-
tion lock.
Uncoupling a trailer
&WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer with an engaged
inertia-activated brake, your hand may
become trapped between the vehicle and the
trailer drawbar.
Do not uncouple trailers with an engaged
overrun brake.*NOTE Damage when uncoupling in a state
of overrun
Uncoupling in a state of overrun can damage
the vehicle.
Do not uncouple trailers with an engaged
overrun brake.Secure the trailer against rolling away.Disconnect the electrical connection between
the vehicle and the trailer.Uncouple the trailer.Place the cover cap on the ball head.
Bicycle rack function
&WARNING Risk of an accident when using
the bicycle rack incorrectly
The bicycle rack may become detached from
the vehicle in the following cases:
= the permissible load capacity of the trailer
hitch is exceeded.
Driving and parking259

=the bicycle rack is used incorrectly.
= the bicycle rack is secured to the ball neck
beneath the ball head.
Observe the following for your own safety and
that of other road users:
= always adhere to the permissible load
capacity of the trailer hitch.
= only use the bicycle rack to transport bicy-
cles.
= always mount the bicycle rack properly by
attaching to the ball head and the ball
neck guide pin, if possible.
= when transporting four bicycles, always
use bicycle racks which have additional
support on the ball neck guide pin.
= only use bicycle racks approved by
Mercedes-Benz.
= always observe the bicycle rack operating
instructions.*NOTE Damage to, or cracks on, the trailer
hitch due to unsuitable bicycle racks or
bicycle racks being used incorrectlyuse only bicycle racks approved by
Mercedes-Benz.*NOTE Increased risk of damage to prop-
erty due to folded-out ball neckWhen the trailer is not coupled or the bicycle rack is attached, fold in the ballneck or, in the case of a fully electric
trailer hitch, retract the ball neck.
Trailer hitch (example with additional guide pin)
Depending on the bicycle rack's design, diMerent
numbers of bicycles can be transported.
The following bicycle rack designs are possible:
= When mounted by attaching to ball head 1,
the maximum load capacity is 75 kg. You can transport up to three bicycles.
260Driving and parking

=When mounted on ball head 1 and guide pin
2 , the maximum load capacity is 100 kg. You
can transport up to four bicycles.
The maximum load capacity is calculated from the
weight of the bicycle rack and the bicycle rack
load.
Observe the notes on driving with a roof load, trailer or fully laden vehicle (  page 163).
When using a bicycle rack, set the tyre pressure
for increased load on the rear axle of the vehicle.
Further information on the tyre pressure can be found in the tyre pressure table (  page 351).
Notes on loading
The larger the distance between the load's centre
of gravity and the ball head, the greater the load
on the trailer hitch.
Observe the following notes: = mount heavy bicycles as close to the vehicle
as possible
= always distribute the load on the bicycle rack
as evenly as possible across the vehicle's lon-
gitudinal axis
Mercedes-Benz recommends removing all detach- able parts from bicycles (e.g. baskets, child seats,
rechargeable batteries) before loading them onto
the bicycle rack. This will improve the aerody-
namic resistance and centre of gravity of the bicy- cle rack.
Always secure the bicycles to prevent them from moving around and check them at regular inter- vals to ensure that they are secure.
Do not use tarpaulins or other covers. The driving
characteristics and rear view may be impaired. In
addition, aerodynamic resistance and the load on the trailer hitch will increase.Load distribution on the bicycle rack1Vertical distance between centre of gravity
and ball head2Horizontal distance between centre of gravity and ball head3The centre of gravity is on the vehicle's centre
axis
Observe the following information when loading
the bicycle rack:
Driving and parking261

Loading the bicycle rack3 bicycles4 bicyclesTotal weight of
bicycle rack and
loadUp to 75 kgUp to 100 kgMax. distance
1420 mm420 mmMax. distance
2300 mm400 mm
When transporting four bicycles or a total weight
between 75 kg and 100 kg, always use bicycle
racks with additional support on the trailer hitch
guide pin.
Vehicle towing instructions
The vehicle is not suitable for the use of tow bar
systems that are used for Oat towing or dinghy
towing, for example. Attaching and using tow bar
systems can result in damage to the vehicle. When you are towing a vehicle with tow bar sys-
tems, safe driving characteristics cannot be guar-
anteed for the towing vehicle or the towed vehicle.
The vehicle-trailer combination may swerve from side to side.
Observe the following information:
= Permitted towing methods (  page 341)
= The notes on towing the vehicle with both
axles on the ground (  page 342)262Driving and parking

Notes on the driver display&WARNING Risk of accident due to a driver
display malfunction
If the driver display has failed or malfunc-
tioned, the function restrictions applying to
safety relevant systems are not visible.
The operating safety of your vehicle may be
impaired.
Drive on carefully.Have the vehicle checked immediately at
a qualiNed specialist workshop.
If the operating safety of your vehicle is impaired,
park the vehicle immediately and safely. Contact a
qualiNed specialist workshop.
The driver display shows basic information such
as speed, engine speed, fuel level and coolant temperature.
Additional functions available to you include the following:
= DiMerent menus, e.g. for assistance and navi-
gation
= Status displays for the driving systems
= Display messages
= Indicator and warning lamps
= Information on Consumption and range
The menu contents and settings can be individu-
ally adjusted and set.
Operating the driver display
&WARNING Risk of distraction from infor-
mation systems and communications
equipment
If you operate information and communication equipment integrated in the vehicle when driv-
ing, you will be distracted from the traPc sit-
uation. This could also cause you to lose con-
trol of the vehicle.
Only operate this equipment when the
traPc situation permits.If you cannot be sure of this, stop the
vehicle whilst paying attention to roadand traPc conditions and operate the
equipment with the vehicle stationary.Observe the legal requirements for the country in
which you are currently driving when operating
the driver display.Driver display263

Scrolling on the menu bar1Back button2Main menu button3Touch Control
The content of the driver display is controlledusing the control elements on the les side of the
steering wheel. Touch Control 3 is used to navi-
gate in a vertical and horizontal direction by swip-
ing with one Nnger. ConNrm the selection by
pressing the Touch Control.%To operate Touch Control 3 in the most
eMective way, use the tip of your thumb if pos-
sible. You can also set the sensitivity of the Touch Control on the central display .BrieOy press main menu button 2.Select a menu by swiping to the les or right
on Touch Control 3.Press Touch Control 3 to conNrm.
Menus on the driver display
Notes on the menus on the driver display
&WARNING Risk of distraction from infor-
mation systems and communications
equipment
If you operate information and communication
equipment integrated in the vehicle when driv-
ing, you will be distracted from the traPc sit-
uation. This could also cause you to lose con-
trol of the vehicle.
Only operate this equipment when the
traPc situation permits.If you cannot be sure of this, stop the
vehicle whilst paying attention to road
and traPc conditions and operate the
equipment with the vehicle stationary.Observe the legal requirements for the country in
which you are currently driving when operating
the driver display.
The following menus can be called up via the menu bar on the driver display:
= Understated
= Sport
= Classic
= Navigation
= Assistance
= Service
In some of these menus, you can choose between
diMerent display content on the centre display
area.
264Driver display

In most of the menus, you can use Options to
conNgure further settings for the menu-speciNc
display content.%You can Nnd further information about the
possible settings and selections on the menus in the Digital Owner's Manual.
Head-up display
Function of the head-up display
The head-up display projects various content into
the driver's Neld of vision, for example.
You can use the head-up display menu bar to
select diMerent contexts, e.g.:
= Minimal
= Sport
= Standard
= ECO display
= Settings
= Head-up display on/oM
The following image shows an example of the con-
text with navigation.
Head-up display content with navigation (9x3°)1Navigation instructions2Navigation instructions (distance to the next
route event)3Steer Assist status4Current speed5Set speed in the driving system (e.g. cruise
control)6Detected traPc signs (TraPc Sign Assist)
When you receive a call, the 0061 Call waiting
message will appear on the head-up display and the driver display.
System limits
Visibility is particularly inOuenced by the following
conditions:
= Seat position
= Image position setting
= Light conditions
= Wet road surfaces
= Objects on the display cover
= Polarisation in sunglasses
Operating the head-up display
Selecting display content of the head-up display
via the menu bar of the driver display
Press the main menu button 00E2 on the les.To select the menu bar of the head-up dis-
play: swipe upwards on the les-hand Touch
Control.Driver display265

Switching between display contents on the head-up display
Swipe right or les on the les-hand Touch Con-
trol.
The head-up display shows a preview of the
selected display contents aser each swipe.Press the 0076 button to conNrm the desired
content.
Switching back to the driver display
Press the ( or 00E2 button.Setting the position and brightnessOn the menu bar of the head-up display,
select Settings by swiping to the les or right.Press the les-hand Touch Control.
The current position and brightness settings
will be displayed graphically on the head-up
display as well as on the driver display.To adjust the position: swipe upwards or
downwards on the les-hand Touch Control.To adjust the brightness: swipe to the right or
les on the les-hand Touch Control.
The settings conNgured for position and
brightness will be saved automatically.Press the ( or 0076 button to exit the set-
tings.Switching the head-up display on/oM
Driver display:
4 ©
Switching on
Swipe upwards on the les-hand Touch Con-
trol.
Head-up display will appear.Press 0076 on the les-hand Touch Control.
Switching oM
Swipe upwards on the les-hand Touch Con-
trol.Select Head-up display by swiping on the les-
hand Touch Control.Press 0076 on the les-hand Touch Control.266Driver display

Vehicles with a 48 V on-board electrical system(EQ Boost technology)1The area shows the electric drive support.2This area shows the recuperation behaviour of
the electric motor.

00D9HOLD function ( page 194)00CEAdaptive Highbeam Assist (  page 133)
Adaptive Highbeam Assist Plus
(  page 134)ðMaximum permissible speed exceeded (for
certain countries only)