tire size BMW 760Li 2004 E66 Owner's Manual

Practical interior accessories
116
Emptying
Press the button, refer to arrow 1. The ash-
tray rises for removal.
Cigarette lighter, front
Push down.
The lighter can be removed as soon as it
jumps back out.
Hold or touch the hot cigarette lighter
by the knob only. Holding or touching
it in other areas could result in burns.
The cigarette lighter is also ready for oper-
ation when the remote control is unlocked.
For this reason, do not leave unsupervised
children in the vehicle.<
Lighter socket
The socket can be used to plug in hand
lamps, car vacuum cleaners, etc., with
power ratings of up to approx. 200 W at
12 V. Avoid damaging the socket due to
inserting plugs of different shapes or sizes.
With the ignition switched off, the
power supply to all electrical sockets
is cut off after approx. one hour.<
Power socket
An additional power socket is located in the
front passenger's footwell.
To gain access, fold the cover cap up.
Ashtray, rear
Emptying
Press the cover entirely down. The ashtray
rises for removal.
Cigarette lighter, rear
Refer to Cigarette lighter, front.

Wheels and tires
188
Wheels and tires
Tire inflation pressure
Information for your safety
It is not merely the tire's service life, but
also driving comfort and Ð to a great extent
Ð driving safety that depend on the condi-
tion of the tires and the maintenance of the
specified tire pressure.
Check the tire inflation pressure regu-
larly and correct it if necessary,
including the spare wheel: at least every
two weeks and before beginning a longer
trip. If you fail to observe this precaution
you may be driving on tires with incorrect
tire pressures, a condition that can not only
compromise your vehicle's stability, but
also lead to tire damage and the risk of an
accident.
Do not drive with deflated, i.e. flat tires,
except run-flat tires. A flat tire will seriously
impair your vehicle's handling and braking
response. Attempts to drive on a flat tire
can lead to loss of control over the vehi-
cle.<
Checking inflation pressure
Only check tire inflation pressure when
the tires are cold. i.e. after a maximum of
2 hours' driving or when the vehicle has
been parked for at least 2 hours. When tires
are warm, the tire inflation pressure
increases.
After correcting the inflation pressure(s),
always reinitialize the Flat Tire Monitor,
refer to page 95.
Inflation pressure for original tires
The inflation pressures for your standard
tires can be found on the door pillar when
you open the driver's door.
Inflation pressure for other tire sizes
The table below provides all the correct
inflation pressures for the specified tire
sizes at ambient temperature.
For correct identification of the right
tire inflation pressure for your tires,
observe the specifications for the corre-
sponding tire size.<

Mobility
189Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
745i, 745Li
760Li
Tire sizePressure specifications in psi/kPa
All pressure specifications
in the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
245/50 R 18 100 V M+S
245/55 R 17 102 W
245/50 R 18 100 W
245/55 R 17 102 Q M+S
245/50 R 18 100 Q M+S32/220 35/240 35/240 42/290
Front: 245/45 R 19 98 W 32/220 - 35/240 -
Rear: 275/40 R 19 101 W - 35/240 - 42/290
Front: 245/40 R 20 95 Y 32/220 - 35/240
Rear: 275/35 R 20 98 Y - 35/240 - 42/290
More details on the permitted load and weights can be found on page 214.
Tire sizePressure specifications in psi/kPa
All pressure specifications
in the table are indicated in
psi/kilopascal with cold tires.
Cold = ambient temperature
245/50 R 18 100 V M+S
245/50 R 18 100 W
245/50 R 18 100 Q M+S35/240 38/260 38/260 42/290
Front: 245/45 R 19 98 Y 35/240 - 38/260 -
Rear: 275/40 R 19 101 Y - 38/260 - 42/290
Front: 245/40 R 20 95 Y 35/240 - 38/260
Rear: 275/35 R 20 98 Y - 38/260 - 42/290
More details on the permitted load and weights can be found on page 214.

Wheels and tires
190
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 rating
Q = up to 105 mph/160 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 Number
Tires with DOT codes meet the guidelines
of the U.S. Department of Transport.
DOT code:
Tire age
The tire's date of manufacture is indicated
on the sidewall:
DOT ... 3603 indicates that the tire was
manufactured in the 36th week of 2003.
Regardless of mileage or wear, BMW rec-
ommends that you replace all tires Ð includ-
ing the spare Ð after a maximum of 6 years, even though the tires may have a theoreti-
cal service life of up to 10 years.
Uniform Tire Quality Grading
Quality grades can be found where appli-
cable 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 rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course.
For example, a tire graded 150 would wear
one and one-half Ð 1g Ð 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 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 govern-
ment 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 brak-
ing traction tests, and does not include
acceleration, cornering, hydroplaning, or
peak traction characteristics.< e.g.
Nominal width
in mm
Aspect ratio in X
Radial tire code
Rim diameter in inches
Load rating,
not for ZR tires
Speed rating,
before R on ZR tires
245/45 R19 104 H
e.g.
Manufacturer code
for tire makes
Tire size and tire design
Tire ageDOT xxxx xxx 3603

Wheels and tires
192
Replacing wheels/tires
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled pro-
fessionals only. The technicians at your
BMW center will be glad to assist you with
the required professional knowledge and
specialized equipment.<
The correct wheel and tire combination
affects various systems whose function
would otherwise be impaired, e.g. ABS or
DSC.
Have the wheel and tire assemblies bal-
anced every time either a wheel or a tire is
replaced.
BMW does not recommend the use
of retreaded tires, as otherwise driv-
ing safety may be reduced. Possible varia-
tions in the design and the age Ð which
could be substantial Ð of the carcasses can
lead to unusually rapid wear.<
The right wheels and tires
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 manufacturing tolerances mean that
even wheels and tires with identical official
size ratings could actually have different
dimensions than the approved units Ð these
differences could lead to body contact, and
with it the risk of severe accidents. If non-
approved wheels and tires are used, BMW
cannot evaluate their suitability, and there-
fore cannot be held liable for driving
safety.<
To maintain good handling and vehicle
response, use only tires of a single tread
configuration from a single manufacturer.
After a flat tire, always remember to have
the original wheel and tire combination
remounted on the vehicle as soon as pos-
sible.
Recommended tire brands
BMW tests certain tire brands for each tire
size, classifies them as road-safe and
approves them. You can find out about
these at specialized dealers or at your
BMW center. Observe any country-specific
regulations, e.g. on making a correspond-
ing entry in the vehicle documents.
The factory-mounted tires have been spe-
cially selected to provide optimized perfor-
mance when installed on your vehicle; if
properly cared for, they will provide a com-
bination of safety and excellent ride com-
fort.
Run-flat tires
If your BMW is equipped with run-flat tires,
refer to Run-flat tires, only use these tires,
as in the event of a breakdown there is no
spare wheel available.
Special characteristics of winter
tires
BMW recommends winter tires for use in
cold winter driving conditions. Although
so-called all-season M+S tires provide bet-
ter winter traction than summer tires, they
generally fail to provide the same levels of
cold-weather performance as winter tires.
When switching to winter tires, observe the
description at Tire condition, and Replac-
ing wheels/tires, refer to page 191.
Run-flat tires
If your BMW is equipped with run-flat tires,
refer to Run-flat tires, only use these tires,
as in the event of a breakdown there is no
spare wheel available.
Observing speed ratings
Never exceed the maximum speed
for which the winter tires are rated.
Unprofessional attempts by laymen to ser-
vice tires can lead to damage and acci-
dents. Have this work performed by skilled
professionals only. The technicians at your
BMW center will be glad to assist you with
the required professional knowledge and
specialized equipment.<

Replacing components
204 surface of the front tire on the side
opposite the side being raised. If the
vehicle is parked on a downward slope,
place the wheel chock securely in front
of the tire. If the wheel must be changed
on a surface with a more severe slope,
take additional precautions to secure
the vehicle from rolling
3.Loosen the lug bolts 1/2 a turn
4.Set up the jack beneath the jacking
point closest to the flat tire. Ensure that
the entire surface of the jack's base is in
firm contact with the ground and that
the jack itself is standing completely
vertical, not tilted, and that the fitting on
the top of the jack will align with the
rectangular recess on the vehicle when
you raise it, refer to illustration
5.Jack the vehicle up until the wheel you
are changing is raised from the ground
6.Unscrew the lug bolts and remove the
wheel
7.Remove accumulations of mud or dirt
from the mounting surfaces of the
wheel and hub. Clean the lug bolts
8.Position the spare wheel. Secure the
wheel by turning at least two lug bolts
into opposite bolt holes
9.Screw in the remaining lug bolts.
Tighten all the bolts securely in a diag-
onal pattern
10.Lower the jack and remove it from
beneath the vehicle
11.Tighten the lug bolts in a diagonal pat-
tern
12.Check and correct the tire inflation
pressure at the earliest opportunity. Protect valve stems and valve stem
seal caps against dirt and contamina-
tion. Dirt in valve stems is a frequent source
of gradual air loss.<
After mounting the spare wheel or correct-
ing the inflation pressure, reinitialize the
Flat Tire Monitor, refer to page 95.
The vehicle jack is designed for
changing wheels only. Do not attempt
to raise another vehicle model with it or to
raise any load of any kind. To do so could
cause accidents and personal injury.
To ensure safety, always have the lug bolts
checked with a calibrated torque wrench
as soon as possible to ensure that they are
tightened to the specified torque.
The tightening torque is 101 ft-lb/
140 Nm.<
Reverse the removal sequence to store the
wheel and tools in the vehicle.
When you mount wheels other than Genu-
ine BMW light-alloy wheels, different lug
bolts may also be required.
Always have damaged tires replaced and
the wheel and tire assembly rebalanced at
the earliest possible opportunity.
Driving with the spare tire
On certain wheel-tire combinations,
the size of the spare tire deviates from
that of the rest of the tires. The spare tire is
fully capable of running in all load and
speed ranges. However, to recreate the
original conditions, the tire should be
replaced as soon as possible.<

Everything from A to Z
226 Tires
Ð flat tire 203
Ð tire changes 203
Ð tire damage 191
Ð tire inflation pressure 188
Ð tire replacement 192
Ð tire size, refer to Wheel
and tire
combinations 192
Ð tire tread 191
Ð tread wear indicators 191
"TITLE" 167
Tone, adjusting 149
"Tone" for audio
mode 148, 150
Tools 200
"TOP 8" 180
"TOP" for DVD mode 169
Topping up washer fluid 71
Torque 212
Tow fittings 208, 209
Towing
Ð with raised front axle 208
Track 213
Traction Control System,
refer to DSC 92
Traffic congestion, refer to
Selecting a new
route 140
Transmission, refer to
Automatic transmission
with Steptronic 66
Transmission lockout, refer
to Park detent 67
Transporting children
safely 56
Travel route, refer to
Route 140
Tread depth, tires 191
Treble 149
"Treble" for audio
mode 150
Trip computer 86
Trip odometer 80
Trunk lid, refer to Luggage
compartment lid 37
Turning circle 213
Turn signal indicators 69
Ð replacing bulbs 201, 202"TV" 163, 164
TV 163
Ð adjusting the picture 164
Ð adjusting the tone 149
Ð controls 148
Ð NTSC 164
Ð PAL 164
Ð programs 163
Ð SECAM 164
Ð selecting standard 164
Ð switching on 163
Ð volume 149
"TV format" 164
U
Undercoating, refer to the
Caring for your vehicle
brochure
Uniform Tire Quality
Grading 190
Universal garage door
opener, refer to
Integrated universal
remote control 111
Unlatching the engine
hood 194
Unlocking without key,
refer to Comfort
Access 34
Upholstery care, refer to
the Caring for your
vehicle brochure
Used batteries 206
V
Vacuum cleaner
connection 116
Valve caps 204
Vanity mirror 51
Vehicle battery 205
Vehicle dimensions 213
Vehicle jack 203
Vehicle keys 32
Vehicle Memory 54
Ventilation 105
Ð draft-free 105
Ð while parked 109
Vents, refer to
Ventilation 102"Video" 148
"View" for
navigation 139, 140
Viscosity 196
Voice command
system 16, 25
Voice guidance for
navigation 141
Volume
Ð audio 149
Ð CD changer 149
Ð CD player 149
Ð DVD changer 149
Ð navigation 141
Ð portable phone 177
Ð radio 149
Ð TV 149
Ð voice command
system 26
W
Warm feet, cool headroom,
refer to Front
ventilation 105
Warning lamps 12
Warning messages 82
Warning triangle 207
Warranty and Service
Guide Booklet for
Canadian models 198
"WB" 148, 155
Wear indicators in the
tires 191
Weather Band 155
Weights 214
Wheel and tire
combinations 192
Wheelbase 213
Wheel bolts
Ð wrench 203
Wheels and tires 192
Width 213
"Window" 107
Windows 41
Ð convenience operation 36
Ð remote control 34
Ð safety switch 42