228
MobilityWheels and tires
Tire identification marks
Knowledge of the labeling on the side of the tire
makes it easier to identify and choose the right
tires.
Tire size
Speed code letter
Q = up to 100 mph or 160 km/h
T = up to 118 mph or 190 km/h
H = up to 131 mph or 210 km/h
V = up to 150 mph or 240 km/h
W = up to 167 mph or 270 km/h
Y = up to 186 mph or 300 km/h
Tire Identification Number
Tires with DOT codes meet the guidelines of
the US Department of Transportation.
DOT code:
Tire age
The manufacturing date of tires is contained in
the tire coding: DOT … 1013 means that the
tire was manufactured in week 10 of 2013.
BMW recommends that you replace all tires
after 6 years at most, even if some tires may last
for 10 years.
Uniform Tire Quality Grading
Quality grades can be found where applicable
on the tire sidewall betw een tread shoulder and
maximum section width. For example:
Tread wear 200 Traction AA
Temperature A
DOT Quality Grades
Tread wear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to
Federal Safety Requir ements in addition
to these grades. <
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditio ns on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1 γ) times as
well on the government course as a tire graded
100. The relative performance of tires depends
upon the actual conditio ns of their use, how-
ever, and may depart significantly from the
norm due to variations in driving habits, service
practices and differences in road characteris-
tics and climate.
Traction
The traction grades, from highest to lowest, are
AA, A, B, and C.
These grades represent the tire's ability to stop
on wet pavement, as measured under con-
trolled conditions on specified government test
surfaces of asphalt and concrete. A tire marked
C may have poor traction performance.
e.g.
Nominal width in mm
Aspect ratio
in
Ξ
Radial belt construction
Rim diameter in inches
Load rating,
not on ZR tires
Speed code letter, in
front of the R on ZR tires
225/45 R1791 V
e.g.
Manufacturer's
code for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 4012
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230
MobilityWheels and tires
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. The same
applies to any other abnormal road behavior,
such as pulling severely to the right or left.
In these cases, reduce speed immedi-
ately and have wheels and tires thor-
oughly checked. To do so , drive carefully to the
nearest BMW center or tire dealer. If necessary,
have the vehicle towed there.
O t h e r w i s e , t i r e d a m a g e c a n p o s e a l e t h a l h a z a r d
to vehicle occupants and other road users. <
Tire age
For various reasons, such as the development
of brittleness, BMW recommends tire replace-
ment after no more than 6 years, regardless of
the actual wear of the tires.
The manufacturing date of tires is contained in
the tire coding:
DOT ... 1013 means that the tire was manufac-
tured in week 10 of 2013.
New wheels and tires
Have new wheels and tires mounted only
by your BMW center or by a tire dealer. If
this work is not carried out properly, there is a
danger of subsequent damage and related
safety hazards. Make sure that the new wheels
are balanced. <
Retreaded tires
BMW recommends that you do not use
retreaded tires, since driving safety may
be impaired. The causes for this include poten-
tially different tire casing structures and often
wide variations in tire ag e, which can result in a
limited service life. <
Correct wheels and tires
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount run-flat tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you.
BMW recommends that you use only
wheel and tire combinations that BMW
has tested and approved for your particular
vehicle. Variations in factors such as manufac-
turing tolerances mean that even wheels and
tires with identical offi cial size ratings could
actually have different dimensions, which could
lead to body contact an d thus to severe acci-
dents. If non-approved wheels and tires are
used, BMW cannot evaluate their suitability,
and therefore cannot guarantee their driving
safety. <
You can inquire about the right wheel/tire
combination at your BMW center.
The correct combination of wheels and tires is
also necessary to ensure reliable operation of
various vehicle systems such as ABS, DSC or
FTM.
To maintain good handling and vehicle
response, use only tires of a single brand and
tread configuration. Af ter a tire has been
damaged, mount the previous wheel and tire
combination again as soon as possible.
Wheels with Tire Pressure Monitor
TPM electronics
When mounting new tires or changing over
from summer to winter tires, or vice versa, only
use wheels with TPM electronics; otherwise,
the Tire Pressure Monito r may not be able to
detect a puncture, refer to page 94. Your BMW
center will be glad to advise you.
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274
ReferenceEverything from A to Z
Headlamp control,
automatic 100
Headlamp cover 244
Headlamp flasher 71
– indicator lamp 15
Headlamps
– replacing bulbs 244
Head Light, refer to Adaptive
Light Control 101
Head restraints 52
Heated
– seats 54
– steering wheel 57
Heated mirrors 56
Heating
– mirrors 56
– seats 54
– steering wheel 57
Heating, rear window 109
Heating and ventilation 106
Heavy loads, refer to Stowing cargo 128
Height, refer to Dimensions 258
Height adjustment
– steering wheel 57
High-beam Assistant 102
High beams 102
– indicator lamp 15
– replacing bulbs 244
High beams and low beams,
automatic, refer to High-
beam Assistant 102
High-pressure washer 239
High water, refer to Driving through water 126
Highways, refer to Route
criteria 143
Hills 127
Holders for cups 116
Hood 232
Hot exhaust system 126
Hydraulic brake assist, refer to
Dynamic Brake Control 89
Hydroplaning 126I
IBOC, refer to HD radio 159
Ice warning, refer to Outside temperature warning 75
Identification marks
– tire coding 228
iDrive 20
– adjusting brightness 87
– changing date and time 83
– changing language 87
– menu guidance 21
– operating principle 20
– status information 23
Ignition 62
– switched off 62
– switched on 62
Ignition key, refer to Integrated key/remote
control 32
Ignition key position 1, refer to Radio readiness 61
Ignition key position 2, refer to Ignition on 62
Ignition lock 61
Incoming call 193
Indicator and warning lamps 15
– tire pressure monitor TPM 94
Individual settings, refer to
Personal Profile 32
Inflation pressure monitoring, refer to Tire Pressure
Monitor TPM 92
Initializing
– compass, refer to
Calibrating 114
– radio, refer to Storing stations 158
– refer to Setting the time and date 83
Initializing, Flat Tire Monitor
FTM 91 Instructions for navigation
system, refer to Voice
instructions 145
Instrument cluster 14
Instrument combination, refer
to Instrument cluster 14
Instrument lighting 104
Integrated key 32
Integrated universal remote control 111
Interactive map 139
Interior lamps 104
– remote control 35
Interior motion sensor 39
Interior rearview mirror 56
– automatic dimming
feature 56
– compass 113
Intermittent mode of the
wipers 72
Intersection, entering,
navigation 135
J
Jacking points
248
Jets, refer to Air vents 106
Jets, refer to Window washer
nozzles 72
Joystick, refer to iDrive 20
Jumpering, refer to Jump
starting 251
Jump starting 251
K
Key, refer to Integrated key/
remote control 32
Keyless go, refer to Comfort Access 40
Keyless opening and closing, refer to Comfort Access 40
Key Memory, refer to Personal
Profile 32
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