2008 BMW 135I COUPE width

Controls
47Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
1Longitudinal direction
2Height
3Angle
4Backrest
The head restraints are adjusted manually, refer
to Head restraints on page47.
Lumbar support*
You can also adjust the contour of the backrest
to obtain additional support in the lumbar
region.
The upper hips and spinal column receive sup-
plementary support to help you maintain a
relaxed, upright sitting position.
>Increase or decrease curvature: press the
switch at the front or rear, respectively.>Shift curvature up or down: press the switch
at the top or bottom, respectively.
Backrest width*
You can change the width of the backrest to suit
your individual preferences by adjusting the lat-
eral-support pads.
Press the front or rear end of the switch.
Backrest width decreases or increases accord-
ingly.
To move the front seats forward or backward
from outside or from one of the rear seats: with
the door open, press the front end 1 or rear end
2 of the switch.
Head restraints
A correctly adjusted head restraint reduces the
risk of neck injury in the event of an accident.
Adjust the head restraint in such a way
that its center is at approx. ear level. Oth-
erwise, there is an increased risk of injury in the
event of an accident. Only remove a head
restraint if no one will be sitting on the seat in
question. Reinstall the head restraint before
transporting anyone on that seat. Otherwise,

Adjustments
50 Settings for the backrest width and lumbar sup-
port are not stored in memory.
Storing
1.Switch on radio readiness or the ignition,
refer to page58.
2.Adjust the seat and exterior mirrors to the
desired positions.
3.Press the button.
The LED in the button lights up.
4.Press the desired memory button 1 or 2: the
LED goes out.
Call-up
Do not call up memory while you are driv-
ing, otherwise unexpected seat move-
ment could result in an accident.<
Convenience mode
1.Unlock and open the driver's door or switch
on radio readiness, refer to page58.
2.Lightly push the desired memory button1
or 2.
The adjusting procedure is halted when you
touch a seat adjustment switch or one of
the memory buttons.
Safety feature
1.Close the driver's door and switch the igni-
tion on or off, refer to page58.
2.Press the desired memory button1 or2
and keep it pressed until the adjustment
process has been completed.
If the button was pressed accidentally:
Press the button again; the LED goes out.
Call-up with the remote control
The driver's seat position last stored is stored
for the remote control currently in use.
You can select the occasion on which the seat is
reset to that position.
>Call-up when the vehicle is unlocked.
>Call-up when the driver's door is opened.
When this Personal Profile function is
used, first make sure that the footwell
behind the driver's seat is free of obstacles.
Failure to do so could cause injury to persons or
damage to objects as a result of a rearward
movement of the seat.<
The adjusting procedure is halted when you
touch a seat adjustment switch or one of the
memory buttons.
Selecting automatic call-up
iDrive, for operating principle refer to page16.
1.Open the start menu.
2.Press the controller to open the menu.
3.Select "Settings" and press the controller.
4.Select "Vehicle / Tires" and press the con-
troller.
5.If necessary, move the highlight marker to
the uppermost field. Turn the controller
until "Door locks" is selected and press the
controller.
6.Select "Central locking" and press the con-
troller.
7.Select "Last seat pos." and press the con-
troller.

Controls
55Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Transporting children safely
The right place for children
Do not leave children unattended in the
vehicle, otherwise they could endanger
themselves and/or other persons by opening
the doors, for example.<
Children always in the rear
Accident research has shown that the safest
place for children is on the rear seat.
Children under the age of 13 or smaller
than 5 ft/150 cm may be transported only
in the rear in suitable child-restraint systems
appropriate for their age, weight and size. Oth-
erwise there is an increased risk of injury in the
event of an accident.<
Children 13 years of age or older must be buck-
led in with a safety belt as soon as there no
longer is any child-restraint system that is
appropriate for their age, size and weight.
Exception for front passenger seat
Should it be necessary to use a child-
restraint system on the front passenger
seat, the front and side airbags for the front pas-
senger must be deactivated. Otherwise, a child
traveling on that seat will face a significant risk
of injury if the airbags are triggered off, even
with a child-restraint system.<
For more information on automatic deactivation
of the front passenger airbags refer to page88.
Installing child-restraint
systems
Observe the child-restraint system man-
ufacturer's instructions when selecting,
installing and using child-restraint systems.
Otherwise the protective effect may be dimin-
ished. <
Standard child-restraint systems are designed
to be secured with a lap belt or with the lap-belt
section of a lap-and-shoulder belt. Incorrectly or improperly installed child-restraint systems
can increase the risk of injury to children.
Always follow the installation instructions for
the system with the greatest care.
On the front passenger seat
After installing a child-restraint system on
the front passenger seat, make sure that
the front and side airbags for the front passen-
ger are deactivated, otherwise there is an
increased risk of injury if the airbags deploy.<
Backrest width*
The backrest width of the front passen-
ger's seat must be at its widest possible
setting. Do not change the setting after install-
ing the child seat. Otherwise the child seat's
stability on the front passenger's seat is lim-
ited.<
1.Adjust the backrest width to its widest set-
ting, refer to page47.
2.Install the child seat.
Child seat security
The rear safety belts and the front passenger's
safety belt can be prevented from being pulled
out in order to fasten child-restraint systems.
To lock the safety belt
1.Secure the child-restraint system with the
belt.
2.Pull the belt strap all the way out.

Mobility
205Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
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 … 3006 means that the
tire was manufactured in week 30 of 2006.
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.
Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test sur-
faces 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.<
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 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 0705

Reference 241
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Automatic transmission with
Steptronic60
– interlock61
– selector lever lock61
– shiftlock61
– towing224
– tow-starting224
"Automatic ventilation" for
parked car ventilation100
AUTO program for automatic
climate control98
"Auto Request"193
"Autostore"
– on the radio156
"AUX"150,169,171
– AUX-In port169
– USB-audio interface170
AUX-In port169
Average fuel consumption68
– setting the units70
Average speed68
"Avoid ferries" in
navigation134
"Avoid highways" in
navigation134
Avoid highways in
navigation134
Avoiding unintentional
alarms35
"Avoid tollroads" in
navigation134
Axle loads, refer to
Weights233
"A - Z"183,184
B
Backrests, refer to Seats46
Backrest width adjustment47
Back seats, refer to Rear seats
– adjusting head restraints48
Backup lamp, replacing
bulb219
Bag for skis, refer to Ski
bag109
Balance, tone control151
Band-aids, refer to First-aid
pouch223Bar, refer to Tow-starting,
towing away225
Bass, tone control151
Bass sounds, refer to Treble
and bass151
Battery220
– charging220
– disposal37,220
– jump starting223
– temporary power failure220
Battery renewal
– remote control for vehicle37
Being towed224
Belts, refer to Safety belts51
Belt tensioner, refer to Safety
belts51
Beverage holders, refer to
Cup holders106
Blower, refer to Air flow
rate98
"BMW Assist"192,193,194
BMW Assist
– activating196
– Concierge service194
– contacting BMW Customer
Relations194
– Roadside Assistance192
– services offered191
– TeleService193
"BMW Contact"186
"BMW Contact
Numbers"186
BMW Maintenance
System214
"BMW Service settings"197
Bottle holders, refer to Cup
holders106
Brake assist, refer to Dynamic
Brake Control81
Brake fluid
– service requirements71
Brake Force Display87
Brake lamps
– Brake Force Display87
– replacing bulb219
Brake pads, breaking in114
Brake rotors116
– brakes114
– breaking in114Brakes
– ABS81
– BMW Maintenance
System214
– braking safely116
– breaking in114
– parking brake59
– service requirements71
Brake system114
– BMW Maintenance
System214
– breaking in114
– disc brakes116
Breakdown services, refer to
Roadside Assistance222
Breaking in the clutch114
Break-in period114
"Brightness"79
Bulb changing, refer to Lamps
and bulbs216
Bulbs, changing216
Button for starting the
engine58
Buttons on the steering
wheel11
C
California Proposition 65
warning6
"Call"184,195
Call
– accepting182
– displaying accepted184
– ending183
– missed184
– starting183
Calling
– from phone book183
– from Top 8 list184
– redialing184
Can holders, refer to Cup
holders106
Capacities234
Capacity of the cargo bay233
Car battery, refer to Vehicle
battery220
Car care, refer to Caring for
your vehicle brochure

Reference 253
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Temperature display
– outside temperature66
– outside temperature
warning66
– setting the units70
Tempomat, refer to Cruise
control64
"Terminate services"196
"Text language", refer to
Language of Control
Display79
"Theater" for Tone
control152
Thigh support46
Third brake lamp, refer to
Center brake lamp219
Three-point safety belt51
Through-loading system108
Tilt alarm sensor35
Tilt function, passenger-side
mirror52
"Time / Date"74,75
"Time format"75
Timer, refer to Preselecting
switch-on times100
Tire inflation pressure202
– loss84,85
Tire pressure monitoring,
refer to Flat Tire Monitor83
Tire Pressure Monitor
TPM84
– resetting the system85
– system limitations84
– warning lamp86
Tire puncture, refer to Flat Tire
Monitor84
Tire Quality Grading205Tires
– age205,207
– air loss86
– breaking in114
– changing, refer to Changing
wheels219
– condition206
– damage206
– inflation pressure202
– labels205
– minimum tread depth206
– new tires207
– pressure monitoring, refer to
Flat Tire Monitor83
– pressure monitoring, refer to
Tire Pressure Monitor
TPM84
– puncture84
– retreaded207
– Run-Flat Tires207
– size205
– wear indicators, refer to
Minimum tread depth206
– winter tires208
Tires, FTM83
TMC station, refer to Traffic
information141
"Tone"151
Tone in audio mode
– adjusting151
– middle setting152
Tools, refer to Onboard tool
kit216
"Top 8" for mobile phone184
Torque, refer to Engine
data230
Touch tone dialing186
Tow bar225
Tow fitting224
Tow fittings for tow-starting
and towing away224
Towing224
– car with automatic
transmission224
– methods225
Towing and tow-starting224
Town/city for destination124
"Town / City" in destination
entry124Tow rope225
Tow-starting224
"TPM"85
TPM, refer to Tire Pressure
Monitor84
Tracks
– random play sequence166
– sampling, Scan165
– searching for165
Track width, refer to
Dimensions231
Traction control, refer to
Dynamic Stability Control
DSC81
Traffic information for
navigation
– calling up142
– display on route map143
– during destination
guidance144
– switching on/off141
– symbols143
"Traffic Info settings"142
Traffic jam
– displaying traffic
information141
– driving around144
Transmission
– automatic transmission with
Steptronic60
– manual transmission60
Transporting children
safely55
Transport securing devices,
refer to Securing cargo118
Tread depth, refer to Minimum
tire tread206
Treble, refer to Treble and
bass151
Treble, tone control151
"Trip computer"69
Trip computer69
Trip-distance counter, refer to
Trip odometer66
"Triple turn signal"63
Triple turn signal activation63
Trip odometer66
Trunk, refer to Cargo bay

Everything from A - Z
254 Trunk lid, refer to Luggage
compartment lid33
Turning circle, refer to
Dimensions231
Turn signal
– indicator lamp12
Turn signal indicators
– replacing bulbs218
Turn signals62
– triple turn signal63
Tying down loads, refer to
Cargo loading118
U
Underbody protection, refer to
Caring for your vehicle
brochure
Uniform Tire Quality Grading/
UTQR205
"Units"70
Units of measure
– average fuel
consumption70
– temperature70
Universal garage door opener,
refer to Integrated universal
remote control102
Universal remote control102
Unlatching, refer to
Unlocking29
"Unlock button"30
Unlocking
– from inside33
– from outside29
– luggage compartment lid37
– without remote control, refer
to Convenient access36
Unlocking without a key, refer
to Convenient access36
"Update services"195
USB-audio interface170
"USB" for audio
mode169,171
V
Vehicle
– battery220
– breaking in114
– care, refer to Caring for your
vehicle brochure
– cargo loading117
– dimensions231
– Identification Number, refer
to Engine compartment210
– parking59
– washing, refer to Caring for
your vehicle brochure
– weight233
"Vehicle / Tires" for
unlocking29
Vehicle decommissioning
– refer to Caring for your
vehicle brochure
Vehicle jack220
Vehicle position, refer to
Displaying current
position144
Ventilation99
– draft-free99
Ventilation when parked, refer
to Parked car ventilation100
Vents, refer to Ventilation99
"Vent settings"97
Voice commands
– overview23
– short commands235
Voice instructions from
navigation system140
– muting54,140
– repeating54,140
– switching on/off54,140
– volume140
Voice phone book188
Volume150
– audio sources150
– fuel tank, refer to
Capacities234
– mobile phone181
– speed-dependent
control151
– voice instructions140Volume distribution
– front/rear151
– left/right151
W
Warning and indicator
lamps13
Warning messages, refer to
Check Control76
Warning triangle223
Washer fluid64
– content of the reservoir64
Washer fluid filler neck64
Washing the car, refer to
Caring for your vehicle
brochure
Waste tray, refer to
Ashtray107
Water on roads, refer to
Driving through water116
Waveband with the radio154
Wear indicators in tires, refer
to Minimum tread depth206
Weights233
Welcome lamps91
Wheelbase, refer to
Dimensions231
Wheels, new207
Wheels and tires202
Width, refer to
Dimensions231
Windows38
– convenient operation30
– convenient operation with
convenient access36
– opening, closing38
– pinch protection system39
Windows, defrosting and
removing condensation99
Windshield
– cleaning64
– defrosting and removing
condensation99
Windshield wash
– filling capacity, reservoir234
Windshield washer reservoir,
refer to Washer fluid filler
neck64