
Problems with the seat heating or seat ventilation
ProblemPossible causes/consequences andMSolutions
Seat heating or seat ven-
tilation has been
switched off prematurely
or cannot be switched
on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock.
Adjusting the steering wheel man-
ually
:Release lever
;To adjust the steering wheel height
=To adjust the steering wheel position (fore-
and-aft adjustment)
XPush release lever :down completely.
The steering column is unlocked.
XAdjust the steering wheel to the desired posi- tion.
XPush release lever :up completely.
The steering column is locked.
XCheck if the steering column is locked. When
doing so, try to push the steering wheel up or
down or try to move it in the fore-and-aft
direction.
110Steering wheel
Seats, steering wheel and mirrors

Adjusting the steering wheel electri-
cally
:To adjust th esteering whee lposition (fore-
and-af tadjustment)
;To adjust th esteering whee lheight
iFurther relate dsubjects :
REASY-ENTRY/EXIT feature (Ypage 112)
RStoring settings (Ypage 116)
ROperating theon-board computer
(Ypage 236).
Steering wheel heating
Switching on/off
XTurn th eSmartKey to position 2in th eignition
loc k (Ypage 146).
XTo switch on/off: turnth elever in th edirec -
tion of arrow :or;.
Indicato rlamp =lights up or goe sout .
Vehicles without KEYLESS-GO :when you
remove th eSmartKey from th eignition lock, th e
steering whee lheating is deactivated.
Vehicles wit hKEYLESS-GO :when you switch off
th eignition and open th edriver's door ,th e
steering whee lheating is deactivated.
Steering wheel111
Seats, steering wheel and mirrors
Z

RPay attention to the PARKTRONIC
(Ypage 200) warning messages during the
parking procedure.
RYou can intervene in the steering procedure
to correct it at any time. Active Parking Assist
will then be canceled.
RWhen transporting a load which protrudes
from your vehicle, you should not use Active
Parking Assist.
RNever use Active Parking Assist when snow
chains are installed.
RMake sure that the tire pressures are always
correct. This has a direct influence on the
parking characteristics of the vehicle.
Use Active Parking Assist for parking spaces:
Rparallel or at right angles to the direction of
travel
Rthat are on straight roads, not bends
Rthat are on the same level as the road, e.g. not on the pavement
Detecting parking spaces
Objects located above the height range of Active
Parking Assist will not be detected when the
parking space is measured. These are not taken
into account when the parking procedure is cal-
culated, e.g. overhanging loads, tail sections or
loading ramps of goods vehicles.
GWARNING
If there are objects above the detection range:
RActive Park Assist may steer too early
Rthe vehicle may not stop in front of these
objects
You may cause a collision as a result. There is
a risk of an accident.
If objects are located above the detection
range, stop and deactivate Active Parking
Assist.
For further information on the detection range
(
Ypage 199). Active Parking Assist does not assist you park-
ing in spaces at right angles to the direction of
travel if:
Rtwo parking spaces are located directly next
to one another
Rthe parking space is directly next to a low
obstacle such as a low curb
Ryou park forwards
Active Parking Assist does not assist you park-
ing in spaces that are parallel or at right angles
to the direction of travel if:
Rthe parking space is on a curb
Rthe system reads the parking space as being
blocked, for example by foliage or grass pav-
ing blocks
Rthe area is too small for the vehicle to maneu-
ver into
Rthe parking space is bordered by an obstacle,
e.g. a tree, a post or a trailer
:Detected parking space on the left
;Parking symbol
=Detected parking space on the right
Active Parking Assist is switched on automati-
cally when driving forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/ h). While in operation, the sys-
tem independently locates and measures park-
ing spaces on both sides of the vehicle.
Active Parking Assist will only detect parking
spaces:
Rparallel or at right angles to the direction of
travel
Rthat are parallel to the direction of travel and
at least 59 in (1.5 m) wide
Drivingsystem s203
Drivin g and parking
Z

make sure that there are no persons, animals or
objects in the area in which you are maneuver-
ing.
You are always responsible for safety, and must
always pay attention to your surroundings when parking and maneuvering. This applies to the
areas behind, in front of and beside the vehicle.
You could otherwise endanger yourself and oth-
ers.
The 360° camera will not function or will func-
tion in a limited manner:
Rif the doors are open
Rif the exterior mirrors are folded in
Rif the trunk lid is open
Rin heavy rain, snow or fog
Rat night or in very dark places
Rif the cameras are exposed to very bright light
Rif the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
Rif the camera lenses fog up, e.g. when driving
into a heated garage in winter, causing a rapid
change in temperature
Rif the camera lenses are dirty or covered
Rif the vehicle components in which the cam-
eras are installed are damaged. In this event,
have the camera position and setting checked
at a qualified specialist workshop.
Do not use the 360° camera in this case. You
can otherwise injure others or cause damage to
objects or the vehicle.
The guide lines in the COMAND display show the
distances to your vehicle. The distances only
apply to road level.
The camera in the rear area is protected by
means of a flap. This flap opens when the 360°
camera is activated. Observe the notes on
cleaning (
Ypage 339). For technical reasons,
the flap may remain open briefly after the 360°
camera has been deactivated.
On vehicles with height-adjustable chassis,
depending on technical conditions, leaving the
standard height can result in:
Rinaccuracies in the guide lines
Rinaccuracies in the display of generated
images (top view)
Activation conditions
The 360° camera image can be displayed if:
Rthe multimedia system is switched on
Rthe 360° Camerafunction is switched on
iIf you are driving faster than at a moderate
speed and you turn on the 360° camera, a
warning message appears.
The warning message disappears if:
Ryou are again driving at a moderate speed
The 360° camera is then activated.
Rthe message is confirmed with the %
button.
Switching the 360° camera on and off
using the button
XTo switch on: press button:.
Depending on whether position Dor Ris
engaged, the following is shown:
Ra split screen with top view and the image
from the front camera or
Ra split screen with top view and the image
from the rear view camera
XTo switch off: press button:.
Activating the 360° camera using
reverse gear
The 360° camera images can be automatically
displayed by engaging reverse gear.
Driving systems211
Driving and parking
Z

ing on the vehicle's equipment. The selected
contents appear in the head-up display.
In Mercedes-AMG vehicles, you can also choose
between two AMG displays. If you select an
AMG display, the head-up display shows AMG-
specific contents.
XPress theòbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Head-upDisplaysubmenu.
XPressato confirm.
XPress :or9 to select Display Con‐tent.
XPressato confirm.
A graphic selection list appears.
XPress :or9 to select the desired dis-
play.
XPress the abutton to confirm the selec-
tion.
You can find further information on navigation
displays in the multimedia system (see separate
operating instructions).
Information on displays of Traffic Sign Assist
(
Ypage 215).
Setting the position
You can adjust the position of the head-up dis-
play on the windshield. You can compensate for
height differences if the seat positions are
changed, for example.
XSwitch on the head-up display (Ypage 238).
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the Head-upDisplaysubmenu.
XPressato confirm.
XUsing :or9, select the Positionfunction.
XPress theabutton to save the setting.
XPress the :or9 button to adjust the
position to a level from Level +5toLevel-5.
XPress the aor% button to save the
setting.
Using the Memory function, you can save and
call up the set position of the head-up display as
a single memory preset (
Ypage 116).
Setting the brightness
The brightness of the head-up display is auto-
matically adjusted to the surrounding ambient
light. You can also individually adjust the bright-
ness of the head-up display.
XSwitch on the head-up display (Ypage 238).
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the Head-upDisplaysubmenu.
XPressato confirm.
XUsing :or9, select the Brightnessfunction.
XPress theabutton to save the setting.
XPress the :or9 button to adjust the
brightness to a level from Level+5(bright) to
Level -5(dark).
XPress the aor% button to save the
setting.
Light submenu
Switching the daytime running lamps on/
off
This function is not available in Canada.
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Lightssubmenu.
XPressato confirm.
250Menus and submenus
On-board computer and displays

:Bag hook
EASY-PACK trunk box
Important safety notes
GWARNING
When the load surface moves up, your hands may become trapped on the frame of the
EASY-PACK trunk box. There is a risk of injury.
When the load surface moves up, make sure
that your hands are not within the sweep of
the load surface. If someone becomes trap-
ped, carefully push the center of the load sur-
face downward.
!When the EASY-PACK trunk box is pulled
out, no objects may be placed on the frame of
the box, nor should the frame be pushed from
above. Otherwise, the box could be damaged.
!Sharp-edged, pointed or fragile objects can
damage the EASY-PACK trunk box and then
be thrown out. There is a risk of injury.
Do not transport sharp-edged, pointed or
fragile objects in the EASY-PACK trunk box.
Always store and secure these or similar
objects in the trunk outside of the EASY-PACK
trunk box.
!If you exceed the maximum permitted load
of the EASY-PACK trunk box, objects can be
thrown out of the EASY-PACK trunk box and
strike vehicle occupants. There is a risk of
injury, particularly in the event of sudden
braking or a sudden change in direction.
Always observe the maximum permitted load
of the EASY-PACK trunk box. Always store
and secure heavy objects in the trunk outside
of the EASY-PACK trunk box. The maximum permitted load of the EASY-PACK
trunk box is 22 lb
s(10 kg). With a load of above
approximately 11 lbs (5 kg), the bottom of the
box moves downward until it rests on the mat of
the tru
nk floor. Thus, overloading of the box is
avoided.
Adjusting the height to any position
Example
XPull the box out by handle :in the direction
of the arrow all the way to the stop.
XLowering the load surface: push the center
of load surface ;down by hand in the direc-
tion of the arrow until load surface ;has
reached the desired position and the box is
the desired size.
XTo raise the load surface: press switch=.
Load surface ;of the box moves up auto-
matically.
XTo stow the box: push the box in by han-
dle :all the way to the stop.
Removing and installing
Example
XTo install: insert retainer ;of box :into
slots =
314Stowage areas
Stowage and features

XMake sure that the windshield wipers are
turned off.
XPull release lever:on the hood.
The hood is released.
XReach into the gap, pull hood catch handle ;
up and lift the hood.
If you lift the hood by approximately 15 in
(40 cm), the hood is opened and held open
automatically by the gas-filled strut.
Closing the hood
XLower the hood and let it fall from a height of
approximately 8 in (20 cm).
XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close it
with a little more force.
Radiator
Do not cover up the radiator, such as with a
thermal mat or insect protection cover. The
readings of the on-board-diagnostic system may
otherwise be inaccurate. Some of these read-
ings are required by law and must be accurate at
all times.
Engine oil
Important safety notes
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
General notes
Depending on your driving style, the vehicle
consumes up to 0.9 US qt (0.8 liters) of oil per
600 miles (1,000 km). The oil consumption may
be higher than this when the vehicle is new or if
you frequently drive at high engine speeds.
Depending on the engine, the oil dipstick may be
in a different location.
When checking the oil level:
Rpark the vehicle on a level surface.
Rthe engine should be switched off for approx-
imately five minutes if the engine is at normal
operating temperature.
Rall vehicles (except Mercedes-AMG C 63/C
63S): the engine is not at normal operating
temperature, e.g. if the engine was only star-
ted briefly, wait approximately 30 minutes
before carrying out the measurement.
The oil level of the Mercedes-AMG C 63/C63 S
must only be checked when the engine is at
normal operating temperature.
Engine compartment331
Maintenance and care
Z

tire load rating and speed rating required for
your vehicle.
:Tire width
;Nominal aspect ratio in %
=Tire code
?Rim diameter
ALoad bearing index
BSpeed rating
General: depending on the manufacturer's
standards, the size imprinted in the tire wall may
not contain any letters or may contain one letter
that precedes the size description.
If there is no letter preceding the size descrip-
tion (as shown above): these are passenger
vehicle tires according to European manufac-
turing standards.
If "P" precedes the size description: these are
passenger vehicle tires according to U.S. man-
ufacturing standards.
If "LT" precedes the size description: these are
light truck tires according to U.S. manufacturing
standards.
If "T" precedes the size description: compact
emergency wheels with high tire pressure that
are only designed for temporary use in an emer-
gency.
Tire width: tire width:shows the nominal tire
width in millimeters.
Height-width ratio: aspect ratio;is the size
ratio between the tire height and tire width and
is shown in percent. The aspect ratio is calcula-
ted by dividing the tire width by the tire height.
Tire code: tire code=specifies the tire type.
"R" represents radial tires; "D" represents diag-
ona l ti
res; "B" represents diagonal radial tires.
Optionally, tires with a maximum speed of over
149 mph (240 km/h) may have "ZR" in the size description, depending on the manufacturer
(e.g. 245/40 ZR 18).
Rim diameter:
rim diameter?is the diameter
of the bead seat, not the diameter of the rim
flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing indexAis a
numerical code that specifies the maximum
load-bearing capacity of a tire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissible
load can be found on the vehicle's Tire and
Loading Information placard on the B-pillar on
the driver's side (
Ypage 370).
Example:
Load-bearing index 91 indicates a maximum
load of 1,356 lb (615 kg) that the tires can bear.
For further information on the maximum tire
load in kilograms and lbs, see (
Ypage 376).
For further information on the load bearing
index, see "Load index" (
Ypage 376).
Speed rating: speed ratingBspecifies the
approved maximum speed of the tire.
iTire data is vehicle-specific and may deviate
from the data in the example.
Rega rdle
ss of the speed rating, always observe
the speed limits. Drive carefully and adapt your
driving style to the traffic conditions.
Summer tires
IndexSpeed rating
Qup to 100 mph (160 km/h)
Rup to 106 mph (170 km/h)
Sup to 112 mph (180 km/h)
Tup to 118 mph (190 km/h)
Hup to 130 mph (210 km/h)
Vup to 149 mph (240 km/h)
Wup to 168 mph (270 km/h)
Yup to 186 mph (300 km/h)
ZR...Yup to 186 mph (300 km/h)
ZR...(..Y)over 186 mph (300 km/h)
ZRover 149 mph (240 km/h)
ROptionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR" in
All about wheels an d tires375
Wheels and tires
Z