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
Q = up to 100 mph, 160 km/h
R = up to 106 mph, 170 km/h
S = up to 112 mph, 180 km/h
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 NumberDOT code: DOT xxxx xxx 0115
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
0115: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Tire age DOT … 0115: the tire was manufactured in the
1st week of 2015.
Recommendation
Regardless of wear and tear, 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 ADOT 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.
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 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 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 toSeite 196MobilityWheels and tires196
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In case of tire damage
If there are indications of tire damage, re‐
duce your speed immediately and have the
rims and tires checked right away; otherwise,
there is the increased risk of an accident.
Drive carefully to the nearest service center. If
necessary, have the vehicle towed or trans‐
ported there. Otherwise, tire damage can be‐
come life threatening for vehicle occupants
and also other traffic.◀
Repair of tire damage
For safety reasons, the manufacturer of
your vehicle recommends that you do not have
damaged tires repaired; they should be re‐
placed. Otherwise, damage can occur as a re‐
sult.◀
Changing wheels and tires
Mounting Information on mounting tires
Have mounting and balancing performed
only by a service center.
If work is not carried out properly, there is a
danger of subsequent damage and related
safety hazards.◀
Wheel and tire combination
You can ask the service center about the right
wheel/tire combination and wheel rim versions
for the vehicle.
Incorrect wheel and tire combinations impair
the function of a variety of systems such as
ABS or DSC.
To maintain good handling and vehicle re‐
sponse, use only tires with a single tread con‐
figuration from a single manufacturer.
Following tire damage, have the original wheel
and tire combination remounted on the vehicle
as soon as possible.Approved wheels and tires
You should only use wheels and tires
that have been approved by the vehicle manu‐
facturer for your vehicle type; otherwise, e.g.,
despite having the same official size ratings,
variations can lead to chassis contact and with
it, the risk of severe accidents
The manufacturer of your vehicle cannot eval‐
uate non-approved wheels and tires to deter‐
mine if they are suited for use, and therefore
cannot guarantee the operating safety of the
vehicle.◀
Recommended tire brands
For each tire size, the manufacturer of your ve‐
hicle recommends certain tire brands. These
can be identified by a star on the tire sidewall.
With proper use, these tires meet the highest
standards for safety and handling.
New tires Tire traction is not optimal due to manufactur‐
ing circumstances when tires are brand-new;
they achieve their full traction potential after a
break-in time.
Drive conservatively for the first
200 miles/300 km.
Retreaded tires
The manufacturer of your vehicle does not rec‐
ommend the use of retreaded tires.
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Retreaded tires
Possibly substantial variations in the de‐
sign and age of the tire casing structures can
limit service life and have a negative impact on
road safety.◀
Winter tires
Winter tires are recommended for operating on
winter roads.
Although so-called all-season M+S tires pro‐
vide better winter traction than summer tires, they do not provide the same level of perform‐
ance as winter tires.
Maximum speed of winter tires If the maximum speed of the vehicle is higher
than the permissible speed for the winter tires,
then a respective symbol is displayed in your
field of vision. You can obtain this sign from the
tire specialist or from your service center.
Maximum speed for winter tires
Do not exceed the maximum speed for
the respective winter tires; otherwise, tire dam‐
age and accidents can occur.◀
Run-flat tires If you are already using run-flat tires, for your
own safety you should replace them only with
the same kind. No spare tire is available in the
case of a flat tire. Your service center will be
glad to advise you.
Rotating wheels between axlesDifferent wear patterns can occur on the frontand rear axles depending on individual driving
conditions. The tires can be rotated between
the axles to achieve even wear. Your service
center will be glad to advise you. After rotating,
check the tire pressure and correct if needed.
Rotating the tires is not permissible on vehi‐
cles with different tire sizes or rim sizes on the
front and rear axles.Storage
Store wheels and tires in a cool, dry place with
as little exposure to light as possible.
Always protect tires against all contact with oil,
grease and fuels.
Do not exceed the maximum tire inflation pres‐
sure indicated on the side wall of the tire.
Run-flat tires Label
RSC label on the tire sidewall.
The wheels consist of tires that are self-sup‐
porting, to a limited degree, and possibly spe‐
cial rims.
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.
Mobility System
The concept With the Mobility System, minor tire damagecan be sealed quickly to enable continued
travel. To accomplish this, sealant is pumped
Seite 199Wheels and tiresMobility199
Online Edition for Part no. 01 40 2 960 493 - II/15
4.Insert the connector into a power socket
inside the vehicle.5.Correct the tire inflation pressure to
2.5 bar.▷Increase pressure: with the ignition
turned on or the engine running, reel
on the compressor.▷To reduce the pressure: press the but‐
ton on the compressor.
Continuing the trip
Do not exceed the maximum permissible
speed of 50 mph/80 km/h.
Reinitialize the Flat Tire Monitor.
Reinitialize the Tire Pressure Monitor.
Replace the defective tire and the sealant con‐
tainer of the Mobility System as soon as possi‐
ble.
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 16.▷225/50 R 17.▷225/45 R 18.
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/hwhen using snow chains.
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tertainment and Communi‐
cation
ConnectedDrive Services
Connecting electrical devi‐ ces 157
Continued driving with a flat tire 103 , 106
Control Display 18
Control Display, settings 90
Controller 18, 19
Control systems, driving sta‐ bility 120
Convenient opening with the remote control 37
Coolant 209
Coolant level 209
Coolant temperature 83
Cooling function 147, 150
Cooling, maximum 149
Cooling system 209
Cornering light 94
Corrosion on brake discs 172
Cosmetic mirror 157
Courtesy lamps during un‐ locking 37
Courtesy lamps with the vehi‐ cle locked 38
Cruise control 131
Cruise control, active with Stop & Go 125
Cruising range 83
Cupholders 165
Current fuel consumption 84
D
Damage, tires 197
Damping control, dy‐ namic 122
Data, technical 236
Date 83
Daytime running lights 94
Defrosting, refer to defrosting the windows 147
Defrosting, refer to Windows, defrosting 151 Defrosting the windows 147
Dehumidifying, air 147, 150
Deleting personal data 25
Deletion of personal data 25
Destination distance 88
Diesel exhaust fluid, at low temperatures 190
Diesel exhaust fluid, having refilled 190
Diesel exhaust fluid, on mini‐ mum 190
Diesel exhaust fluid, replen‐ ishing yourself 190
Diesel particulate filter 171
Digital clock 83
Digital compass 155
Dimensions 236
Dimmable exterior mirrors 59
Dimmable interior rearview mirror 60
Direction indicator, refer to Turn signals 70
Display, electronic, instru‐ ment cluster 78
Display in windshield 91
Display lighting, refer to In‐ strument lighting 96
Displays, cleaning 233
Disposal, coolant 209
Disposal, vehicle battery 222
Distance control, refer to PDC 133
Distance to destination 88
Divided screen view, split screen 23
Door lock 39
Door lock, refer to Remote control 34
Drive-off assistant 124
Drive-off assistant, refer to DSC 120
Driver assistance, refer to In‐ telligent Safety 107
Driving Assistant, refer to In‐ telligent Safety 107 Driving Dynamics Con‐
trol 122
Driving instructions, break- in 170
Driving mode 122
Driving notes, general 170
Driving stability control sys‐ tems 120
Driving style analysis 181
Driving tips 170
DSC Dynamic Stability Con‐ trol 120
DTC Dynamic Traction Con‐ trol 121
Dynamic Damping Con‐ trol 122
Dynamic Stability Control DSC 120
Dynamic Traction Control DTC 121
E
ECO PRO 177
ECO PRO, bonus range 178
ECO PRO display 177
ECO PRO driving mode 177
ECO PRO driving style analy‐ sis 181
ECO PRO mode 177
ECO PRO Tip - driving in‐ struction 179
EfficientDynamics 180
Electronic displays, instru‐ ment cluster 78
Electronic oil measure‐ ment 206
Electronic Stability Program ESP, refer to DSC 120
Emergency detection, remote control 35
Emergency release, fuel filler flap 186
Emergency Request 224
Emergency start function, en‐ gine start 35 Seite 242ReferenceEverything from A to Z242
Online Edition for Part no. 01 40 2 960 493 - II/15
Technical data 236
Telephone, see user's manual for Navigation, Entertain‐
ment and Communication
Temperature, automatic cli‐ mate control 147, 149
Temperature display for ex‐ ternal temperature 83
Temperature, engine oil 82
Tempomat, refer to Active Cruise Control 125
Terminal, starting aid 226
Text message, supplemen‐ tary 82
Theft alarm system, refer to Alarm system 46
Thigh support 53
Tilt alarm sensor 46
Time of arrival 89
Tire damage 197
Tire identification marks 195
Tire inflation pressure 193
Tire inflation pressure moni‐ tor, refer to FTM 105
Tire Pressure Monitor TPM 101
Tires, changing 198
Tire sealant 199
Tires, everything on wheels and tires 193
Tires, run-flat tires 199
Tire tread 197
Tone, see user's manual for Navigation, Entertainment
and Communication
Tool 212
Top View 139
Total vehicle weight 237
Touchpad 21
Tow fitting 228
Towing 227
Tow lug, see Tow fitting 228
Tow-starting 227
Tow truck 227
TPM Tire Pressure Moni‐ tor 101 Traction control 121
TRACTION, driving dynam‐ ics 121
Transmission lock, electronic unlocking 76
Transmission, manual trans‐ mission 73
Transmission, Steptronic transmission 73
Transporting children safely 61
Tread, tires 197
Trip computer 89
Triple turn signal activa‐ tion 70
Trip odometer 83
Truck for tow-starting/ towing 227
Turning circle 236
Turning circle lines, rearview camera 137
Turn signals, operation 70
U Unintentional alarm 47
Units of measure 91
Universal remote control 153
Unlock button, Steptronic transmission 74
Unlocking/locking via door lock 39
Unlocking/locking with re‐ mote control 37
Unlocking, settings 45
Updates made after the edito‐ rial deadline 7
Upholstery care 232
USB interface 158
V Vanity mirror 157
Variable sport steering 122
Vehicle battery 221 Vehicle battery, replac‐
ing 221
Vehicle, break-in 170
Vehicle care 231
Vehicle features and op‐ tions 6
Vehicle identification num‐ ber 9
Vehicle jack 221
Vehicle paint 231
Vehicle storage 233
Vehicle wash 230
Ventilation 151
Ventilation, refer to Parked- car ventilation 152
VIN, see vehicle identification number 9
Voice activation system 27
W Warning and indicator lamps, see Check Control 79
Warning displays, see Check Control 79
Warning messages, see Check Control 79
Warning triangle 225
Warranty 7
Washer fluid 73
Washer nozzles, wind‐ shield 72
Washer system 70
Washing, vehicle 230
Water on roads 171
Weights 237
Welcome lamps during un‐ locking 37
Welcome lights 93
Wheel base, vehicle 236
Wheel cleaner 232
Wheels, changing 198
Wheels, everything on wheels and tires 193
Wheels, Flat Tire Monitor FTM 105 Seite 248ReferenceEverything from A to Z248
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