
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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