AdjustingVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Sitting safely
The ideal seating position can make a vital con‐
tribution to relaxed, fatigue-free driving.
The seating position plays an important role in
an accident in combination with:▷Safety belts, refer to page 52.▷Head restraints, refer to page 53.▷Airbags, refer to page 95.
Seats
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 con‐
trol 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.◀
Manually adjustable seats
At a glance1Forward/backward2Thigh support3Seat tilt4Backrest width5Lumbar support6Height7Backrest tilt
Forward/backward
Pull the lever and slide the seat in the desired
direction.
After releasing the lever, move the seat forward
or back slightly to make sure it engages prop‐
erly.
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Height
Pull the lever and apply your weight to the seat
or lift it off, as necessary.
Backrest tilt
Pull the lever and apply your weight to the back‐
rest or lift it off, as necessary.
Seat tilt
Pull the lever and move the seat to the desired
tilt. After releasing the lever, apply your weight
to the seat or lift it off to make sure the seat en‐
gages properly.
Electrically adjustable seats
At a glance1Seat and mirror memory2Backrest width3Lumbar support4Backrest tilt5Forward/backward, height, seat tilt
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, is activated for this purpose.
Adjustments in detail
1.Forward/back.Seite 50ControlsAdjusting50
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2.Height.3.Seat tilt.4.Backrest tilt.Thigh support
Pull the lever at the front of the seat and adjust
the thigh support.
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 backrest
using the side wings to adjust the
lateral support.
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Adjusting the height▷To raise: pull.▷To lower: press the button, arrow 1, and
push the head restraint down.
The center head restraint cannot be adjusted in
elevation.
Folding down head restraints Extending/retracting head restraint
Only fold down head restraint if no pas‐
sengers are in the rear. Fold out retracted headr‐
ests again if passengers are being carried in the
rear; otherwise, there is increased risk of injury
in the event of an accident.◀
▷To lower flaps: press the button, arrow 1,
and press down the head restraint.▷Fold back up: pull up head restraints.
Removing
Only remove the head restraint if no one will be
sitting in the seat in question.
1.Pull the head restraint upward as far as pos‐
sible.2.Press the button, arrow 1, and pull the head
restraint out completely.
Before transporting passengers
Reinstall the head restraint before trans‐
porting anyone in the seat; otherwise, the pro‐
tective function of the head restraint is unavail‐
able.◀
Seat and mirror memory
General information
Two different driver's seat and exterior mirror
positions can be stored and retrieved for each
remote control. Settings for the backrest width
and lumbar support are not stored in memory.
Storing
1.Switch on the ignition.2.Set the desired position.Seite 55AdjustingControls55
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Saving positions
Seat and mirror memory, refer to page 55
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 parking, 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 entering an automatic car wash,
fold in the exterior mirrors by hand or with the
button; otherwise, they could be damaged, de‐
pending 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 dimmed.
Photocells are used for control in the Interior rear
view mirror, refer to page 57.
Interior rearview mirror
Reducing the blinding effect
From behind when driving at night: turn the
knob.
Interior rearview mirror, automatic
dimming feature
The concept
Photocells are used for control:
▷In the mirror glass.▷On the back of the mirror.Seite 57AdjustingControls57
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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 restraint
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 po‐
sition 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 after
this.
Backrest width
Adjustable backrest width: before installing a
child restraint fixing system in the front passen‐
ger seat, open the backrest width completely.
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 backrest
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 Children.
Note Manufacturer's information for LATCH
child restraint fixing systems
To mount and use the LATCH child restraint fix‐
ing systems, observe the operating and safety
information from the system manufacturer; oth‐
erwise, the level of protection may be reduced. ◀
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Tire sizePressure specifications
in bar/PSIFront: 225/35 R 20
90 Y XL RSC
Rear: 255/30 R 20
92 Y XL RSC2.9 /42
--
3.4 / 49Compact wheel
T 135/80 R 17 102
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
With high-speed tuning feature
Tire sizePressure specifications
in bar/PSISpecifications in
bar/PSI with cold
tires225/45 R 18 91 Y
RSC
225/50 R 17 94 H M
+S RSC
225/45 R 18 95 V M
+S XL RSC2.7 / 393.2 / 46Front: 225/45 R 18
91 Y RSC
Rear:
255/40 R 18 95 Y
RSC2.7 / 39
--
2.8 / 41Front: 225/40 R 19
89 Y RSC
Rear:
255/35 R 19 92 Y
RSC2.7 / 39
--
3.0 /44Tire sizePressure specifications
in bar/PSIFront: 225/35 R 20
90 Y XL RSC
Rear: 255/30 R 20
92 Y XL RSC2.9 /42
--
3.4 / 49Compact wheel
T 135/80 R 17 102
MSpeed up to a max. of
50 mph / 80 km/h
4.2 / 60
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 3510
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
3510: tire age
Tires with DOT codes meet the guidelines of the
U.S. Department of Transportation.
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Tire age
DOT … 3510: the tire was manufactured in the
35th week in 2010.
Recommendation
Regardless of wear, replace tires at least every
6 years.
Uniform Tire Quality Grading
Quality 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 Federal
Safety Requirements in addition to these
grades.
Treadwear
The 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 significantly from the norm due
to variations in driving habits, service practices
and differences in road characteristics and cli‐
mate.
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 government test surfa‐ces 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, hydro‐
planing, 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. Sus‐
tained high temperature can cause the material
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 required 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 pos‐
sible tire failure.
If necessary, have the vehicle towed.◀
RSC – Run-flat tires
Run-flat tires, refer to page 175, 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 172MobilityWheels and tires172
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