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 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 205, 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 tire 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 re‐
quired 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
objects lodged in the tread, and tread wear.
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The support of the sidewall allows the tire to
remain drivable to a restricted degree in the
event of a tire inflation pressure loss.
Follow the instructions for continued driving
with a flat tire.
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 the
vehicle, classified as road-safe and approved.
Information about the approved snow chains
are available from the service center.
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 snow chain manufacturer's instruc‐
tions.
Make sure that the snow chains are always
sufficiently tight. Retighten as needed accord‐
ing 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 needed.
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, settings should be
made via the iDrive for the snow chains being
applied.
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
steering of the Integral Active Steering is deac‐
tivated automatically.
At speeds above the maximum permitted
speed with snow chains of 30 mph/50 km/h,
the rear axle steering is activated again auto‐
matically.
Activating the status1."Settings"2."Tire chains"3."Tire chains installed"
Automatic detection If functioning properly:
▷Snow chains are mounted. Settings are 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. Settings are
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. Settings are not
activated
.
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Condition Based ServiceCBS 215
Configure driving mode 135
Confirmation signal 43
ConnectedDrive, see user's manual for Navigation, En‐
tertainment and Communi‐
cation
ConnectedDrive Services
Continued driving with a flat tire 106 , 109
Control Display 18
Control Display, settings 92
Controller 18
Control systems, driving sta‐ bility 128
Convenient opening with the remote control 37
Coolant 213
Coolant level 213
Coolant temperature 85
Cooling function 158
Cooling, maximum 158
Cooling system 213
Corrosion on brake discs 180
Cosmetic mirror 167
Cruise control 143
Cruise control, active with Stop & Go 136
Cruise Control, refer to Active Cruise Control 136
Cruising range 86
Cupholder 174
Current fuel consumption 86
D
Damage, tires 203
Damping control, dy‐ namic 131
Data, technical 234
Date 86
Daytime running lights 97
Defrosting, refer to Windows, defrosting 158
Dehumidifying, air 158 Deleting personal data 24
Deletion of personal data 24
Destination distance 91
Digital clock 86
Dimensions 234
Dimmable exterior mirrors 57
Dimmable interior rearview mirror 57
Direction indicator, refer to Turn signals 69
Display, electronic, instru‐ ment cluster 77
Display in windshield 93
Display lighting, refer to In‐ strument lighting 99
Displays 78
Displays, cleaning 231
Disposal, coolant 214
Disposal, vehicle battery 221
Distance control, refer to PDC 145
Distance to destination 91
Divided screen view, split screen 23
Door lock 39
Door lock, refer to Remote control 34
Doors, Automatic Soft Clos‐ ing 40
Downhill control 130
Drive-off assistant 128
Drive-off assistant, refer to DSC 128
Driver assistance, refer to In‐ telligent Safety 109
Driving Assistant, refer to In‐ telligent Safety 109
Driving Dynamics Con‐ trol 132
Driving instructions, break- in 178
Driving mode 132
Driving notes, general 178
Driving stability control sys‐ tems 128
Driving tips 178 DSC Dynamic Stability Con‐
trol 128
DTC Dynamic Traction Con‐ trol 129
Dynamic Damping Con‐ trol 131
Dynamic Drive 131
Dynamic Stability Control DSC 128
Dynamic Traction Control DTC 129
E
ECO PRO 184
ECO PRO, bonus range 185
ECO PRO display 184
ECO PRO displays 79
ECO PRO driving mode 184
ECO PRO mode 184
ECO PRO Tip - driving in‐ struction 186
EfficientDynamics 186
Electronic displays, instru‐ ment cluster 77
Electronic oil measure‐ ment 210
Electronic Stability Program ESP, refer to DSC 128
Emergency detection, remote control 35
Emergency release, fuel filler flap 192
Emergency Request 223
Emergency service, refer to Roadside Assistance 224
Emergency start function, en‐ gine start 35
Emergency unlocking, trans‐ mission lock 75
Emergency unlocking, trunk lid 41
Energy Control 86
Energy recovery 87
Engine, automatic reel-off 65 Seite 240ReferenceEverything from A to Z240
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Switch for Dynamic DrivingControl 132
Switch-on times, parked-car heating 163
Switch-on times, parked-car ventilation 163
Switch, refer to Cockpit 14
Symbols 6
Symbols in the status field 22
SYNC program, automatic cli‐ mate control 159
T Tachometer 85
Tail and brake lights 219
Tail lights 219
Tail lights, bulb replace‐ ment 219
Technical changes, refer to Safety 7
Technical data 234
Telephone, see user's manual for Navigation, Entertain‐
ment and Communication
Temperature, automatic cli‐ mate control 157
Temperature display for ex‐ ternal temperature 85
Temperature, engine oil 85
Terminal, starting aid 225
Text message, supplemen‐ tary 84
Theft alarm system, refer to Alarm system 43
Thermal camera, see Night Vision 118
Thigh support 50
Through-loading system 169
Tilt alarm sensor 44
Tilt glass roof 47
Tilt, seats 49
Time of arrival 91
Tire damage 203
Tire identification marks 202
Tire inflation pressure 196 Tire inflation pressure moni‐
tor, refer to FTM 108
Tire Pressure Monitor TPM 104
Tires, changing 204
Tires, everything on wheels and tires 196
Tires, run-flat tires 205
Tire tread 203
Tone, see user's manual for Navigation, Entertainment
and Communication
Tool 217
Top View 151
Total vehicle weight 235
Touchpad 21
Tow fitting 227
Towing 226
Tow lug, see tow fitting 227
Tow-starting 226
TPM Tire Pressure Moni‐ tor 104
Traction control 129
TRACTION, driving dynam‐ ics 129
TRACTION program, Dy‐ namic Driving Control 133
Transmission lock, electronic unlocking 75
Transmission, see Steptronic transmission 72
Transporting children safely 59
Tread, tires 203
Trip computer 91
Triple turn signal activa‐ tion 69
Trip odometer 85
Trunk lid closing 40
Trunk lid, emergency unlock‐ ing 41
Trunk lid, hotel function 41
Trunk lid opening 40
Trunk lid via remote con‐ trol 38
Turning circle 234 Turning circle lines, rearview
camera 149
Turn signals, operation 69
Turn signals, rear, bulb re‐ placement 219
U
Unintentional alarm 45
Units of measure 93
Universal remote control 165
Unlock button, Steptronic transmission 73
Unlocking/locking via door lock 39
Unlocking/locking with re‐ mote control 37
Unlocking, settings 42
Updates made after the edito‐ rial deadline 6
Upholstery care 230
USB interface 172
V
Vanity mirror 167
Variable steering, Integral Ac‐ tive Steering 132
Vehicle battery 221
Vehicle battery, replac‐ ing 221
Vehicle, break-in 178
Vehicle care 229
Vehicle features and op‐ tions 6
Vehicle identification num‐ ber 9
Vehicle jack 220
Vehicle paint 229
Vehicle storage 231
Vehicle wash 228
Ventilation 161
Venting, see ventilation 161
Vent, see ventilation 161
VIN, see vehicle identification number 9 Seite 246ReferenceEverything from A to Z246
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