identification marks BMW 1 SERIES 2011 Owners Manual

Wheels and tires
198
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 … 1010 means that the
tire was manufactured in week 10 of 2010.
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 between 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 Requirements 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 conditions on a specified gov-
ernment test course. For example, a tire graded
150 would wear one and one-half (1γ) 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, 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.
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction charac-
teristics.< 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 1010

Reference 243
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Fog lamps94
– indicator lamp13,94
Footbrake, refer to Braking
safely114
Footwell lamps95
For your own safety5
Free memory capacity, music
collection161
Front airbags88
Front seat setting44
Frost, removing from
windows, refer to Defrosting
windows98
FTM, refer to Flat Tire
Monitor82
Fuel193
– gauge69
– high-quality brands193
– quality193
– specifications193
– tank contents, refer to
Capacities230
Fuel clock, refer to Fuel
gauge69
Fuel consumption indicator,
refer to Average fuel
consumption70
Fuel consumption statistics,
refer to Average fuel
consumption70
Fuel display, refer to Fuel
gauge69
Fuel filler flap192
– releasing in the event of
electrical malfunction192
Fuses218
G
Garage door opener, refer to
Integrated universal remote
control101
Gasoline, refer to Required
fuel193
Gasoline display, refer to Fuel
gauge69Gas station
recommendations131
Gear change
– with automatic
transmission58
– with manual transmission57
Gear display, with automatic
transmission58
Gear shifting62
Gearshift lever60
– automatic transmission with
Steptronic58
– manual transmission57
General driving notes113
Glass roof, electric36
– closing after electrical
malfunction37
– convenient operation30
– opening, closing37
– operation with Comfort
Access34
– pinch protection system37
– raising36
– remote control28
Glove compartment104
GPS navigation, refer to
Navigation system120
Grills, refer to Air vents96
Gross vehicle weight, refer to
Weights229
H
Halogen lamps
– replacing bulbs214
Handbrake, refer to Parking
brake57
Hands-free system, refer to
Microphone for hands-free
mode14
Hazard warning flashers14
HD Radio144
Head airbags88
Headlamp control,
automatic91
Headlamp cover214
Headlamp flasher64
– indicator lamp13Headlamps
– replacing bulbs214
Head restraints46
Heated
– seats48
– steering wheel51
Heated mirrors50
Heating
– mirrors50
– seats48
– steering wheel51
Heating, rear window98
Heating and ventilation96
Heavy loads, refer to Stowing
cargo115
Height, refer to
Dimensions227
Height adjustment
– steering wheel51
High-beam assistant93
High beams93
– indicator lamp13
– replacing bulbs214
High beams and low beams,
automatic, refer to High-
beam assistant93
High-pressure
washer209,210
High water, refer to Driving
through water114
Highways, refer to Route
criteria130
Hills114
Holders for cups105
Hood202
Hot exhaust system113
Hydraulic brake assist, refer to
Dynamic Brake Control81
Hydroplaning113
I
IBOC, refer to HD Radio144
Ice warning, refer to Outside
temperature warning68
Identification marks
– tire coding198
Idle position61