Radar sensor
A dirty or covered sensor may hinder the detec‐
tion 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 sen‐
sor.
Switching on/off and interrupting
cruise control
Switching on Press the button on the steering wheel.
The indicator lamps in the instrument cluster
light up and the mark in the speedometer is set
to the current speed.
Cruise control can be used.
Switching off Deactivated or interrupted system
If the system is deactivated or interrupted,
actively intervene by braking and, if necessary,
with evasive maneuvers; otherwise, there is the
danger of an accident occurring.◀
If switching off the system while stationary,
press on the brake pedal at the same time.
Press the button.
▷If active: press twice.▷If interrupted: press once.The displays go out. The stored desired speed
and distance are deleted.
Interrupting the system When active, press the button.
If interrupting the system while stationary, press
on the brake pedal at the same time.
The system is automatically interrupted in the
following situations:▷When the brakes are applied.▷When transmission position D is disen‐
gaged.▷When DTC Dynamic Traction Control is ac‐
tivated or DSC is deactivated.▷When DSC is actively controlling stability.▷If the safety belt and the driver's door are
opened when the vehicle is standing still.▷If the system has not detected objects for an
extended period, e.g., on a road with very lit‐
tle traffic without road edge line markings.▷If the radar sensor is dirty.
Maintaining/storing the speed
Press the button.
Or:
Press the rocker switch while the system is in‐
terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
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Switching offDeactivated or interrupted system
If the system is deactivated or interrupted,
actively intervene by braking and, if necessary,
with evasive maneuvers; otherwise, there is the
danger of an accident occurring.◀
Press the button.▷If active: press twice.▷If interrupted: press once.
The displays go out. The stored desired speed
is deleted.
Interrupting the system When active, press the button.
The system is automatically interrupted if:
▷The brakes are applied.▷The transmission position D is disengaged.▷DTC Dynamic Traction Control is activated
or DSC is deactivated.▷DSC is actively controlling stability.▷HDC is activated.
Maintaining/storing the current speed
Press the rocker switch while the system is in‐
terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
It is displayed in the speedometer and briefly
displayed in the instrument cluster, Displays in
the speedometer, refer to page 126.
When cruise control is maintained or stored,
DSC Dynamic Stability Control is switched on, if
necessary.
Changing/maintaining speed
The rocker switch can be pressed while the sys‐
tem is interrupted in order to maintain and store
the current speed.
Adapting the desired speed
Adapt the desired speed to the road con‐
ditions and be ready to brake at all times; other‐
wise, there is the danger of an accident occur‐
ring.◀
Press the rocker switch up or down repeatedly
until the desired speed is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed if the road is
clear.
▷Each time the rocker switch is pressed to the
point of resistance, the desired speed in‐
creases or decreases by approx.
1 mph/1 km/h.▷Each time the rocker switch is pressed past
the point of resistance, the desired speed
increases or decreases by a maximum of
5 mph/10 km/h.
Max. adjustable speed: 140 mph/230 km/h.▷Pressing the rocker switch to the resistance
point and holding it there accelerates or de‐
celerates the vehicle without requiring pres‐
sure on the accelerator. After the rockerSeite 125Driving comfortControls125
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Tire sizePressure specifications
in bar/PSIFront: 245/40 R 19
94 Y RSC
Rear:
275/35 R 19 96 Y
RSC2.8 / 41
--
2.8 / 41Front: 245/35 R 20
95 Y XL RSC
Rear:
275/30 R 20 97 Y XL
RSC2.9 /42
--
3.1 / 45
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.
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‐Seite 178MobilityWheels and tires178
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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 181, 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.Tire tread
Summer tires
Do not drive with a tire tread depth of less than
0.12 in/3 mm.
There is an increased danger of hydroplaning if
the tread depth is less than 0.12 in/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 in/4 mm.
Below a tread depth of 0.16 in/4 mm, tires are
less suitable for winter operation.
Minimum tread depth
Wear indicators are distributed around the tire's
circumference and have the legally required
minimum height of 0.063 in/1.6 mm.
They are marked on the side of the tire with TWI,
Tread Wear Indicator.
Tire damage
General information
Inspect your tires often for damage, foreign ob‐
jects lodged in the tread, and tread wear.
Notes
Driving over rough or damaged road surfaces, as
well as debris, curbs and other obstacles can
cause serious damage to wheels, tires and sus‐
pension parts. This is more likely to occur with
low-profile tires, which provide less cushioning
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Changing run-flat tires
For your own safety, only use run-flat tires. No
spare tire is available in the case of a flat tire. Your
service center will be glad to advise you.
Snow chains
Fine-link snow chains
Only certain types of fine-link snow chains have
been tested by the manufacturer of your vehicle,
classified as road-safe and recommended.
Consult your service center for more informa‐
tion.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:▷225/55 R 17.▷245/45 R 18.▷245/40 R 19
Follow the chain manufacturer's instructions.
Make sure that the snow chains are always suf‐
ficiently tight. Retighten as needed according to
the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if necessary.
Maximum speed with snow chains
Do not exceed a speed of 30 mph/50 km/h when
using snow chains.
Snow chain detection
The concept
When using snow chains, you should set
whether you are driving with or without snow
chains via the iDrive.
The snow chain detection system supports you
by automatically showing the detected state on
the Control Display.
When snow chains are in use, the rear axle steer‐
ing of the Integral Active Steering is deactivated
automatically.
At speeds above the maximum permitted speed
with snow chains of 30 mph/50 km/h, the rear
axle steering is activated again automatically.
Activating the status1."Settings"2."Tire chains"3."Tire chains installed"
Automatic detection
If functioning properly:
▷Snow chains are mounted. The setting is not
activated
.
After you drive a short distance, a Check
Control message is shown and the state is
activated automatically.
Confirm the automatic activation.
▷Snow chains are not mounted. The setting
is activated
.
At speeds above 30 mph/50 km/h, a Check
Control message is displayed. Deactivate
the status manually.
If not functioning properly:
▷Snow chains are mounted. The setting is not
activated
.
A Check Control message is not displayed.
The automatic detection system is malfunc‐
tioning. Activate the status manually.
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Cruising range 78
Cupholder 153
Current fuel consumption 78
D
Damage, tires 179
Damping control, dy‐ namic 113
Data, technical 210
Date 77
Daytime running lights 87
Defrosting, refer to Windows, defrosting 141
Dehumidifying, air 142
Destination distance 82
Digital clock 77
Dimensions 210
Dimmable exterior mirrors 52
Dimmable interior rearview mirror 53
Direction indicator, refer to Turn signals 64
Display in windshield 138
Display lighting, refer to Instru‐ ment lighting 89
Displays 70, 71
Displays, cleaning 206
Disposal, vehicle battery 196
Distance control, refer to PDC 126
Distance, selecting for ACC 120
Distance to destination 82
Divided screen view, split screen 20
Door lock, refer to Remote control 30
Doors, Automatic Soft Clos‐ ing 37
Downhill control 112
Drive-off assistant 110
Drive-off assistant, refer to DSC 110
Driving Experience Switch 114 Driving instructions, breaking
in 158
Driving mode 114
Driving notes, general 158
Driving stability control sys‐ tems 110
Driving tips 158
DSC Dynamic Stability Con‐ trol 110
DTC driving dynamics 111
DTC Dynamic Traction Con‐ trol 111
Dynamic Damping Con‐ trol 113
Dynamic Drive 113
Dynamic Stability Control DSC 110
Dynamic Traction Control DTC 111
E
ECO PRO 164
ECO PRO display 164
ECO PRO mode 164
EfficientDynamics 165
Electronic displays, instru‐ ment cluster 71
Electronic Stability Program ESP, refer to DSC 110
Emergency detection, remote control 31
Emergency release, door lock 36
Emergency release, fuel filler flap 170
Emergency Request 198
Emergency service, refer to Roadside Assistance 199
Emergency start function, en‐ gine start 31
Emergency unlocking, trunk lid 38
Energy Control 78
Energy recovery 78 Engine, automatic Start/Stop
function 60
Engine, automatic switch- off 60
Engine compartment 184
Engine compartment, working in 184
Engine coolant 188
Engine oil 186
Engine oil, adding 187
Engine oil additives 187
Engine oil change 187
Engine oil filler neck 187
Engine oil temperature 77
Engine oil types, alterna‐ tive 187
Engine oil types, ap‐ proved 187
Engine start during malfunc‐ tion 31
Engine start, jump-start‐ ing 199
Engine start, refer to Starting the engine 59
Engine stop 59
Engine temperature 77
Entering/exiting vehicle, assis‐ tance, steering wheel 53
Entering a car wash 203
Equipment, interior 145
ESP Electronic Stability Pro‐ gram, refer to DSC 110
Exchanging wheels/tires 180
Exhaust system 158
Exterior mirror, automatic dim‐ ming feature 52
Exterior mirrors 51
External start 199
External temperature dis‐ play 77
External temperature warn‐ ing 77
Eyes for securing cargo 162 Seite 224ReferenceEverything from A to Z224
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Speed limit in the com‐puter 82
Split screen 20
SPORT+ program, Dynamic Driving Control 115
Sport automatic transmis‐ sion 69
SPORT program, Dynamic Driving Control 115
Sport program, transmis‐ sion 68
Stability control systems 110
Start/stop, automatic func‐ tion 60
Start/Stop button 58
Start function during malfunc‐ tion 31
Starting the engine 59
Status display, tires 94
Status information, iDrive 19
Status of Owner's Manual 6
Steering, Integral Active Steering 113
Steering wheel, adjusting 53
Steering wheel heating 53
Steering wheel memory 51
Steptronic, automatic trans‐ mission 67
Stopping the engine 59
Storage compartments 151
Storage compartments, loca‐ tions 151
Storage, tires 181
Storing the vehicle 206
Summer tires, tread 179
Supplementary text mes‐ sage 76
Surround View 128
Suspension settings 114
Switch for Dynamic Driving Control 114
Switch-on times, parked-car ventilation 144
Switch, refer to Cockpit 12
Symbols 6 T
Tachometer 77
Tail and brake lamps 194
Tailgate 37
Tailgate via remote control 35
Tail lamps 194
Tail lamps, bulb replace‐ ment 194
Technical changes, refer to Safety 7
Technical data 210
Telephone, see user's manual for Navigation, Entertain‐
ment and Communication
Temperature, automatic cli‐ mate control 141
Temperature display, external temperature 77
Temperature, engine oil 77
Tempomat, refer to Active Cruise Control 118
Terminal, jump-starting 200
Text message, supplemen‐ tary 76
Theft alarm system, refer to Alarm system 40
Theft protection, lug bolts 196
Theft protection, refer to Cen‐ tral locking system 33
Thermal camera, refer to Night Vision 103
Thigh support 46
Through-loading system 148
Tilt alarm sensor 41
Tilt glass roof 43
Tilt, seats 45
Time of arrival 82
Tire damage 179
Tire identification marks 178
Tire inflation pressure 173
Tire inflation pressure monitor, refer to FTM 97
Tire Pressure Monitor TPM 94 Tires, changing 180
Tires, everything on wheels and tires 173
Tires, run-flat tires 181
Tire tread 179
Tone, see user's manual for Navigation, Entertainment
and Communication
Tools 192
Top View 131
Total vehicle weight 211
Tow fitting 202
Towing 201
Tow-starting 201
TPM Tire Pressure Moni‐ tor 94
Traction control 111
TRACTION program, Dynamic Driving Control 115
Transmission, automatic 67
Transporting children safely 54
Tread, tires 179
Trip computer 83
Triple turn signal activa‐ tion 64
Trip odometer 77
Trunk lid 37
Trunk lid, emergency unlock‐ ing 38
Trunk lid, hotel function 38
Trunk lid via remote con‐ trol 35
Turning circle 211
Turning circle lines, backup camera 130
Turn signals, operation 64
Turn signals, rear, bulb re‐ placement 194
U
Unintentional alarm 41
Units of measure 85
Universal remote control 145 Seite 229Everything from A to ZReference229
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