AdjustingVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Sitting safely The ideal seating position can make a vital
contribution to relaxed, fatigue-free driving.
The seating position plays an important role in
an accident in combination with:▷Safety belts, refer to page 54.▷Head restraints, refer to page 55.▷Airbags, refer to page 96.
Seats
Adjusting
General information Do not adjust the seat while driving
Do not adjust the driver's seat while driv‐
ing, or the seat could respond with unexpected
movement and the ensuing loss of vehicle
control could lead to an accident.◀
Do not incline the backrest too far to the
rear
Also on the front passenger side, do not incline
the backrest on the front passenger side too
far to the rear during driving, or there is a risk of
slipping under the safety belt in the event of an
accident. This would eliminate the protection
normally provided by the belt.◀
At a glance1Active seat2Seat, mirror, and steering wheel memory3Backrest width4Lumbar support5Backrest, head restraint6Shoulder support7Forward/back, height, tilt8Thigh support
Note
The seat setting for the driver's seat is stored
for the remote control currently in use. When
the vehicle is unlocked via the remote control,
the position is automatically retrieved if the
Function, refer to page 39, for this is activated.
Adjustments in detail
1.Forward/back.Seite 51AdjustingControls51
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2.Height.3.Seat tilt.4.Backrest tilt.Thigh support
Multifunctional seat
Adjust the position using the lever.
Lumbar support
The curvature of the seat backrest can be ad‐
justed in such a way that it supports the lumbar
region of the spine. The lower back and the
spine are supported for upright posture.
▷Press the front/rear section
of the switch.
The curvature is increased/
decreased.▷Press the upper/lower sec‐
tion of the switch.
The curvature is shifted up/
down.
Backrest width
Change the width of the back‐
rest using the side wings to ad‐
just the lateral support.
To make it easier to enter and exit the vehicle,
the backrest width temporarily opens fully.
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Adjusting electricallyThe setting corresponds to the direc‐
tion in which the button is pressed.
Saving positions
Seat, mirror, and steering wheel memory, refer
to page 56.
Adjusting manually If an electrical malfunction occurs, for example,
press the edges of the mirror glass.
Automatic Curb Monitor
When the reverse gear is engaged, the mirror
glass tilts downward slightly on the front pas‐
senger side. This improves your view of the
curb and other low-lying obstacles when park‐
ing, for example.
Activating1. Slide the mirror changeover switch
to the driver's side mirror position.2.Engage transmission position R.
Deactivating
Slide the mirror changeover switch to the pas‐
senger's side mirror position.
Fold in and out Press the button.
Possible up to approx. 15 mph/20 km/h.
For example, this is advantageous
▷In car washes.▷In narrow streets.▷For folding back mirrors that were folded
away manually.
Mirrors that were folded in are folded out auto‐
matically at a speed of approx.
25 mph/40 km/h.
Fold in the mirror in a car wash
Before washing the car in an automatic
car wash, fold in the exterior mirrors by hand or
with the button; otherwise, the mirrors could
be damaged, depending on the width of the
vehicle.◀
Automatic heating
Both exterior mirrors are automatically heated
whenever the engine is running.
Automatic dimming feature Both exterior mirrors are automatically dim‐
med. Photocells are used for control in the In‐
terior rear view mirror, refer to page 58.
Interior rearview mirror, automatic
dimming feature
The concept
Photocells are used for control:
▷In the mirror glass.▷On the back of the mirror.
Functional requirement For proper operation:
▷Keep the photocells clean.▷Do not cover the area between the inside
rearview mirror and the windshield.Seite 58ControlsAdjusting58
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Deactivating the front passenger airbags
If a child restraint fixing system is used in
the front passenger seat, the front passenger
airbags must be deactivated; otherwise, there
is an increased risk of injury to the child when
the airbags are triggered, even with a child re‐
straint fixing system.◀
Seat position and height
Before installing a child restraint fixing system,
move the front passenger seat as far back as
possible and adjust its height to the highest
position to obtain the best possible position for
the belt and to offer optimal protection in the
event of an accident.
Do not change the seat position and height af‐
ter this.
Backrest width Adjustable backrest width: before installing a
child restraint fixing system in the front pas‐
senger seat, open the backrest width com‐
pletely. Do not change the backrest width
again and do not call up a memory position.
Backrest width for the child seat
Before installing a child restraint fixing
system in the front passenger seat, the back‐
rest width must be opened completely. Do not
change the adjustment after this; otherwise,
the stability of the child seat will be reduced.◀Child seat security
The rear safety belts and the front passenger
safety belt can be locked against pulling out for
mounting the child restraint fixing systems.
Locking the safety belt
1.Pull out the belt webbing completely.2.Secure the child restraint fixing system
with the belt.3.Allow the belt webbing to be pulled in and
pull it taut against the child restraint fixing
system. The safety belt is locked.
Unlocking the safety belt
1.Unbuckle the belt buckle.2.Remove the child restraint fixing system.3.Allow the belt webbing to be pulled in com‐
pletely.
LATCH child restraint fixing
system
LATCH: Lower Anchors and Tether for CHil‐dren.
Note Manufacturer's information for LATCH
child restraint fixing systems
To mount and use the LATCH child restraint
fixing systems, observe the operating and
safety information from the system manufac‐
turer; otherwise, the level of protection may be
reduced.◀
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General information
The congestion assistant determines speed
and distance from the vehicle in front via a ra‐
dar sensor and the position of the lane marking
via a camera.
Sensors on the steering wheel detect whether
the steering wheel is being touched.
The system is deactivated as soon as contact
with the steering wheel is no longer detected.
In order to be able to use the Congestion As‐
sistant, place your hands around the steering
wheel.
When driving with gloves or with protective
covers, contact with the steering wheel cannot
be detected by the sensors. The system in this
case cannot be used.
Notes Personal responsibility
The system does not relieve the driver of
the responsibility to adapt his or her speed,
distance and driving style to the traffic condi‐
tions. Drive attentively, and react to the current
traffic events. Intervene actively when neces‐
sary, e.g., by braking, steering or making an
evasive maneuver, otherwise, there is danger
of an accident.◀
Functional requirements▷Drive on approved road type. The data on
this are stored in the navigation system.▷Driving on the limited access highway or
divided lane roads.▷Sufficient lane width.▷Lane marking is detected.▷Vehicle driving ahead is detected.▷Speed below 25 mph/40 km/h.▷Both hands on the steering wheel rim.At a glance
Buttons on the steering wheelPress the
buttonFunctionCongestion Assistant ON/OFF,
Pause, refer to page 138.Rocker switch:
Store, change/maintain speed,
refer to page 132.Maintain, store speed, refer to
page 132.Resume speed, refer to
page 133.Adjust distance, refer to
page 133.
Radar sensor
A radar sensor is located in the front bumper
for detecting vehicles on the road ahead of the
vehicle.
A dirty or covered sensor may hinder the de‐
tection of vehicles.
▷If necessary, clean the radar sensor. Re‐
move layers of snow and ice carefully.▷Do not cover the view field of the radar
sensor.Seite 137Driving comfortControls137
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Tire sizePressure specifica‐
tions in bar/PSIFront: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.4 / 35
--
2.6 / 38Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.8 / 41
--
3.0 / 44
With high-speed tuning feature
Tire sizePressure specifica‐
tions in bar/PSISpecifications in
bar/PSI with cold
tires245/45 R 18 100 V
M+S XL A/S RSC
245/45 R 18 100 V
M+S XL RSC2.8 / 413.2 / 46245/40 R 19 98 V M
+S XL A/S RSC3.0 / 443.4 / 49Front: 245/45 R 18
96 Y RSC
Rear:
275/40 R 18 99 Y
RSC2.4 / 35
--
2.6 / 38Tire sizePressure specifica‐
tions in bar/PSIFront: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.6 / 38
--
2.8 / 41Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC3.0 / 44
--
3.2 / 46
Tire identification marks
Tire size 245/45 R 18 96 Y
245: nominal width in mm
45: aspect ratio in %
R: radial tire code
18: rim diameter in inches
96: load rating, not for ZR tires
Y: speed rating, before the R on ZR tires
Speed letter
T = up to 118 mph, 190 km/h
H = up to 131 mph, 210 km/h
V = up to 150 mph, 240 km/h
W = up to 167 mph, 270 km/h
Y = up to 186 mph, 300 km/h
Tire Identification Number
DOT code: DOT xxxx xxx 1013
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
1013: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
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Tire age
DOT … 1013: the tire was manufactured in the
10th week 2013.
Recommendation
Regardless of wear, replace tires at least every
6 years.
Uniform Tire Quality GradingQuality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to Fed‐
eral Safety Requirements in addition to these
grades.
TreadwearThe treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire graded 150 would wear one and one-half, 1 g,
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and may depart signifi‐
cantly from the norm due to variations in driv‐
ing habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditions on specified governmenttest surfaces of asphalt and concrete. A tire
marked C may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction tests,
and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B,
and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the ma‐
terial of the tire to degenerate and reduce tire
life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds
to a level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades Band
A represent higher levels of performance on
the laboratory test wheel than the minimum re‐
quired by law.
Temperature grade for this tire
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 201, are labeled
with a circular symbol containing the letters RSC marked on the sidewall.
M+S
Winter and all-season tires with better cold
weather performance than summer tires.Seite 198MobilityWheels and tires198
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CareVehicle equipmentAll standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Car washes Hints Steam jets or high-pressure washers
When using steam jets or high-pressure
washers, hold them a sufficient distance away and use a maximum temperature of
140 ℉/60 ℃.
Holding them too close or using excessively
high pressures or temperatures can cause
damage or preliminary damage that may then lead to long-term damage.
Follow the user's manual for the high-pressure
washer.◀
Cleaning sensors/cameras with high-
pressure washers
When using high-pressure washers, do not
spray the exterior sensors and cameras, e.g., Park Distance Control, for extended periods of
time and only from a distance of at least
12 in/30 cm.◀
Regularly remove foreign items such as leaves
in the area below the windshield when the
hood is raised.
Wash your vehicle frequently, particularly in
winter.
Intense soiling and road salt can damage the
vehicle.Automatic car washes
Hints Do not use high pressure washing sys‐
tems
With washing systems operating at high pres‐
sures and nozzle positions close to the win‐
dows, drops of water can penetrate.◀
Note the following:▷Give preference to cloth car washes or
those that use soft brushes in order to
avoid paint damage.▷Make sure that the wheels and tires are not
damaged by the transport mechanisms.▷Fold in the exterior mirrors; otherwise, they
may be damaged, depending on the width
of the vehicle.▷Deactivate the rain sensor, refer to
page 71, to avoid unintentional wiper acti‐
vation.▷Do not treat the convertible top with wax.
Ensure that a cycle without wax or a spe‐
cial cycle for convertibles is available.▷In some cases, an unintentional alarm can
be triggered by the interior motion sensor
of the alarm system. Follow the instruc‐
tions on avoiding an unintentional alarm,
refer to page 41.
Guide rails in car washes
Avoid car washes with guide rails higher
than 4 in/10 cm; otherwise, the vehicle body
could be damaged.◀
Before driving into a car wash In order to ensure that the vehicle can roll in a
car wash, take the following steps:
Automatic transmission:
1.Drive into the car wash.Seite 221CareMobility221
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