2009 BMW Z4 SDRIVE35I width

Controls
43Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
4Backrest
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 botto m, 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
accordingly.
Heated seats*
Press once for each temperature level.
Three LEDs indicate the highest temperature.
To switch off:
Press button longer.
If you continue driving
within approx. the next
15 minutes, the seat he ating is automatically
activated at the previously set temperature.
The temperature is lowered or the heating is
switched off entirely to save on battery power.
The LEDs stay lit.
Seat and mirror memory*
You can store and call up two different combi-
nations of driver's-sea t and exterior-mirror
positions.
Settings for the backrest width and lumbar sup-
port are not stored in memory.

Controls
45Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Closing
Make sure you hear the latch plate engage in
the belt buckle.
The upper belt anchor is suitable for adults of
any stature as long as the seat is adjusted prop-
erly, refer to page 41.
Opening
1. Grasp the belt firmly.
2. Press the red button in the buckle.
3. Guide the belt into its reel.
Fasten safety belts reminder for driver
and passenger*
The indicator lamp comes on and an
acoustic signal sounds. In addition, a
message appears on the Control Dis-
play. Check whether the safety belt
has been fastened correctly.
The 'Fasten safety belts' reminder is issued as
long as the driver's safe ty belt has not been fas-
tened. In some country- specific versions, the
'Fasten safety belts' remi nder is also activated
at road speeds above approx. 5 mph or 8 km/h if
the passenger's safety belt is not fastened, if
objects are placed on the passenger seat, or if
driver or passenger unfasten their safety belts.
Damage to safety belts
If the safety belts are damaged or
stressed in an accident: have the belt sys-
tem, including any belt tensioners or child-
restraint systems, replaced and the belt
anchors checked. Have this work done only by
your BMW center or at a workshop that works
according to BMW repair procedures with cor-
respondingly trained perso nnel. Otherwise, it is
not guaranteed that the safety devices will func-
tion properly. <
Mirrors
Exterior mirrors
The passenger's mirror is more convex
than the driver's mirror. The objects seen
in the mirror are closer than they appear. Do not
gauge your distance from traffic behind you on
the basis of what you see in the mirror; other-
wise there is an increased risk of an accident. <
1 Adjustments
2 Folding mirrors in and out
*
3Switching to the other mirror or automatic
curb monitor
*
The setting for the exterior mirrors is stored for
the remote control currently in use
*. The stored
position is called up automatically when the
vehicle is unlocked.
Manual adjustment
The mirrors can also be adjusted manually:
press the edge of the glass.
Folding mirrors in and out*
At driving speeds up to approx. 20 km/h, you
can fold the mirrors in and out by pressing
button 2. This can be beneficial in narrow
streets, for example, or for moving mirrors that
were folded in by hand back out into their cor-
rect positions. Mirrors that were folded in are
folded out automatically at a speed of approx.
25 mph/40 km/h.
Before entering an automatic car wash,
fold in the exterior mi rrors by hand or with
button 2 to prevent them from being damaged
due to the width of the vehicle. <

Transporting children safely
48
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 on the passenger seat
Always transport children under the age
of 13 or smaller than 5 ft/150 cm in a
child-restraint system suitable for their age,
weight and size, and with the passenger airbag
deactivated. Otherwise, there is an increased
risk of injury in the event of an accident or if the
airbags deploy. <
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-restr aint system that is
appropriate for their age, size and weight.
For more information on automatic deactivation
of the passenger airbags refer to page 86.
Installing child-restraint
systems
After installing a child-restraint system on
the passenger seat, make sure that the
front and side airbags for the passenger are
deactivated; otherwise, there is an increased
risk of injury if the airbags deploy.
Observe the child-restraint system manufac-
turer's instructions when selecting, installing
and using child-restraint systems. Otherwise
the protective effect may be diminished. <
Standard child-restraint systems are designed
to be secured with a lap be lt or with the lap-belt
section of a lap-and-shou lder belt. Incorrectly
or improperly installed child-restraint systems
can increase the risk of injury to children.
Always follow the installa tion instructions for
the system with the greatest care.
On the passenger seat
After installing a child-restraint system on
the passenger seat, make sure that the
front and side airbags for the passenger are
deactivated, otherwise there is an increased
risk of injury if the airbags deploy. <
Seat position
Before installing a child-restraint system, move
the passenger seat as far back and up
* as pos-
sible to obtain the best possible position for
the belt.
Backrest width*
The backrest width of the passenger's
seat must be at its widest possible set-
ting. Do not change the setting after installing
the child seat. Otherwise the child seat's stabil-
ity on the passenger's seat is limited. <
1. Adjust the backrest width to its widest set-
ting, refer to page 43.
2. Install the child seat.
Child seat security
The safety belt for the passenger can be locked
to prevent it from being pulled out when it is
used to secure child-restraint systems.

Mobility
193Reference
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 … 0709 means that the
tire was manufactured in week 7 of 2009.
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 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 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-ahe ad braking traction
tests, and does not in clude 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 tires225/45 R1791 V
e.g.
Manufacturer's code
for tire make
Tire size and
tire design
Tire ageDOT xxxx xxx 0709

Care
204
Care
Care products
Regular cleaning and care contributes signifi-
cantly to the value retention of your BMW.
BMW recommends cleaning and caring for your
vehicle with products that are approved by
BMW for this purpose.
Your BMW center will be happy to advise you on
the products and services available for cleaning
and caring for your BMW.
Original BMW CareProducts have been
material tested, labo ratory checked and
proven in the field, and offer optimal care and
protection for your vehicle. <
Do not use cleaners that contain alcohol
or solvents as these may result in
damage. <
Cleaning agents can contain substances
that are dangerous or hazardous to your
health. Therefore, follow the warning and safety
instructions on the packaging. When cleaning
inside the vehicle, always open the doors or
windows of the vehicle. In enclosed areas, pro-
vide for sufficient ventilation. Only use products
designed for cleaning vehicles. <
Exterior care
Washing the vehicle
Especially during the winter months,
ensure that the vehicle is washed more
frequently. Heavy soiling and road salt can lead
to vehicle damage. <
After washing the vehicle, apply the
brakes briefly to dry them, otherwise
water can reduce braking efficiency over the
short term and brake discs can corrode. <
Automatic car washes
Preference should be given to cloth car washes.
Do not use high-pressure car washes,
otherwise water may drip into the vehicle
around the windows. <
Before driving into a car wash, ensure that it is
suitable for your BMW. Check the following:
> Dimensions of your vehicle, refer to
page 221.
> If necessary: fold in the exterior mirrors,
refer to page 45.
> Maximum permissible tire width.
Avoid car washes with guide rail heights
over 4 in/10 cm, otherwise there is danger
of damaging chassis parts. <
Preparations before driv ing into an automatic
car wash:
> Unscrew the rod antenna
*
>Deactivate the rain sensor* to avoid unin-
tentional activation of the wipers.
> Remove additional attachments, e.g.
spoiler or telephone an tennas, if there is a
possibility that they could be damaged.
Automatic transmission
Before driving into an automatic car wash, per-
form the following steps to ensure that the vehi-
cle can roll:
1. Insert the remote cont rol, even with conve-
nient access, into the ignition lock.
2. Move the selector lever to position N.
3. Release the parking brake.
4. Switch off the engine.
5. Leave the remote control in the ignition lock
so that the vehicle can roll.

Reference 231
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Automatic Service Request 184
Automatic transmission with Steptronic 53
– interlock 53,54
– overriding selector lever lock 55
– shiftlock, refer to Changing
selector lever position 54
– sport program 54
– towing 215
– tow-starting 215
AUTO program for automatic
climate control 96
AUX-IN
– port 102
AUX-IN port 158
Average fuel consumption 66
– setting the units 68
Average speed 66
Avoiding unintentional alarms 34
Axle loads, refer to Weights 222
B
Backrest contour, refer to
Lumbar support 43
Backrests, refer to Seat adjustment 42
Backrest width adjustment 43
Backup lamps
– replacing bulb 210
Backup lamps, refer to Tail lamps 210
Band-aids, refer to First-aid
pouch 214
Bar, refer to Towing methods 216
Base plate for telephone or mobile phone
– refer to Snap-in adapter 174
– refer to Snap-in adapter in the center armrest storage
compartment 102
Bass, tone setting 138Battery
212
– charging 212
– disposal 36,212
– jump starting 214
– remote control 28
– temporary power failure 212
Battery for mobile phone 175
Battery renewal
– remote control 36
– remote control for vehicle 36
Being towed 216
Belts, refer to Safety belts 44
Belt tensioner, refer to Safety
belts 44
Beverage holders, refer to Cup holders 103
Blower, refer to Air flow rate 93,96
Bluetooth, activating/
deactivating 166
Bluetooth, refer to separate Owner's Manual
BMW
– car shampoo 207
BMW Assist, activating 180
BMW Assist 178
BMW center 184
BMW Homepage 4
BMW Maintenance System 202
BMW Search 180
BMW webpage 4
Bottle holders, refer to Cup holders 103
Brake
– parking brake 52
Brake assist, refer to Dynamic
Brake Control DBC 78
Brake fluid, refer to Service requirements 69
Brake lamps
– replacing bulb 210
Br
ake pads 110
– breaking in 110
Brake rotors 112
– brakes 110
– breaking in 110 Brakes
– ABS
78
– BMW Maintenance System 202
– breaking in 110
– service requirements 69
Brakes, refer to Braking safely 112
Brake system 110
– BMW Maintenance System 202
– breaking in 110
– disc brakes 112
Breakdown services, refer to Roadside Assistance 213
Breaking in the clutch 110
Breaking in the differential, refer to Engine and
differential 110
Break-in period 110
Brightness of Control Display 76
Bulb changing, refer to Lamps and bulbs 208
Button for starting the engine,
refer to Start/stop button 50
Buttons on the steering wheel 11
Buttons on the steering wheel 11
C
California Proposition 65
warning 6
Call
– accepting 167
– ending 168
– rejecting 168
Calling, refer to Phone
numbers, dialing 168
Can holders, refer to Cup holders 103
Capacities 222
Capacity of the cargo bay 222
Car battery, refer to Vehicle
battery 212
Car care, refer to Care 204

Reference 243
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Transmission lock, releasing manually 58
Transmission positions 56
Transporting children safely 48
Transport securing devices, refer to Securing cargo 114
Tread depth, refer to Minimum
tire tread 194
Trip-distance counter, refer to Trip odometer 64
Triple turn signal activation 59
Trip odometer 64
Trip planner 126
Turning circle, refer to Dimensions 221
Turn signal indicators
– indicator/warning lamp 12
– triple turn signal 59
Turn signals 59
Tying down loads, refer to Cargo loading 114
U
Uniform Tire Quality Grading/
UTQR 193
Units
– average consumption 68
– temperature 68
Universal garage door opener,
refer to Integrated universal
remote control 98
Universal mobile phone
preparation package, refer
to separate Owner's Manual
Universal remote control 98
Unlatching, refer to Unlocking 35
Unlocking
– from inside 32
– from outside 29
– luggage compartment lid 35
– setting unlocking characteristics 29
– without remote control, refer
to Convenient access 35
USB-audio interface 158
USB interface 101
V
VCD148
Vehicle
– battery 212
– breaking in 110
– cargo loading 113
– Identification Number, refer
to Engine compartment 198
– measurements, refer to Dimensions 221
– parking 52
– weight 222
Vehicle jack 211
Vehicle position, refer to Displaying current
position 134
Vehicle storage 207
Ventilation 97
– air conditioner 94
– draft-free 94,97
Ventilation, refer to Climate 92
Vents, refer to Air vents 92
Vents, refer to Ventilation 94,97
Video menu 148
Video playback 148
Voice, refer to Destination
guidance through voice
instructions 129
Voice commands
– short commands 223
Voice instructions from navigation system 129
– repeating 130
– switching on/off 129
– volume 130
Volume 138
– audio sources 138
– fuel tank, refer to
Capacities 222
– mobile phone 167
– voice instructions 130
Volume balance, tone setting 139
W
Warning and indicator
lamps 13
Warning messages, refer to
Check Control 73
Warning triangle 214
Washer fluid 61
– content of the reservoir 61
Washer fluid reservoir 61
Waste tray, refer to
Ashtray 104
Water on roads, refer to
Driving through water 112
Water penetration 204,205
Waveband on the radio 141
Wear indicators in tires, refer to Minimum tread depth 194
Weather information 144
Weights 222
Welcome lamps 88
Wheel/tire combination, refer
to Correct wheels and
tires 195
Wheelbase, refer to
Dimensions 221
Wheels, new 195
Wheels and tires 190
Width, refer to Dimensions 221
Wind deflector 39
Windows 36
– convenient operation 30
– opening, closing 37
– pinch protection system 37
Windows, defrosting, refer to Defrosting windows 94
Windows, defrosting and defogging
– air conditioner 94
Windows, indicator on Control Display 16
Windshield
– cleaning 60
– defrosting and defogging 94
Windshield, defrosting, refer
to Defrosting windows 94