ABS BMW Z4 SDRIVE35I 2009 Owners Manual

Driving
62
Maintaining current speed
Tap the lever, arrow 1, or pull it briefly, arrow 2.
The car's current speed is stored and main-
tained. It is displayed on the speedometer and
briefly in the instrument cluster.
On uphill gradients, it may prove impossible to
maintain the set speed if current engine power
output is insufficient. If the engine braking
effect is insufficient on downhill slopes, the sys-
tem will brake the vehicle slightly.
Increasing desired speed
Repeatedly press the lever to the resistance
point or beyond, arrow 1, until the desired
speed is reached.
> Each time the lever is pressed to the resis-
tance point, the desired speed is increased
by approx. 1 mph or 1 km/h.
> Each time the lever is pressed beyond the
resistance point, the desired speed is
increased by up to 5 mph or 10 km/h.
The system stores and maintains the speed.
Accelerating using the lever
Accelerating slightly:
Press the lever to the resistance point, arrow 1,
and hold until the desired speed is reached.
Accelerating significantly:
Press the lever beyond the resistance point,
arrow 1, and hold until the desired speed is
reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores and
maintains the speed.
Decreasing speed
Repeatedly pull the lever to the resistance point
or beyond, arrow 2, until the desired speed is
displayed.
> Each time the lever is pulled to the resis-
tance point, the desired speed is decreased
by approx. 1 mph or 1 km/h.
> Each time the lever is pulled beyond the
resistance point, the desired speed is
reduced by up to 5 mph o r 10 km/h until the minimum speed of 20 mph or 30 km/h is
achieved.
The system stores and maintains the speed.
Interrupting the system
Tap the lever upwards or downwards, arrow 3.
The displays in the speedometer change color.
In addition, the system is automatically deacti-
vated:
> When you brake the vehicle
> When you switch gears very slowly or shift
to neutral in cars with a manual trans-
mission
> When you engage selector lever position N
in cars with an automatic transmission
> When you engage transmission position N
in 7-gear sport automatic transmissions
with a dual clutch
> When you activate the DTC Dynamic Trac-
tion Control or deactivate DSC.
> When DSC or ABS is intervening
Cruise control is not de activated by depressing
the accelerator pedal. Once the accelerator
pedal is released, the st ored speed is achieved
again and maintained.
Warning lamp
The warning lamp comes on, for
example, when cruise control has
been deactivated as a result of DSC
intervention. A message appears on the Control
Display.
Deactivating the system
> Press the lever upward or downward twice,
arrow 3.
> Switch off the ignition.
The stored speed is cleared.
Resuming a speed stored beforehand
Press the button, arrow 4. The last stored
speed is resumed and maintained.

Technology for driving comfort and safety
78
Loud sound sources outside or inside the car
can drown out the PDC signal. Therefore,
always drive cautiously, otherwise there is a risk
of personal injury or property damage.
<
Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
Antilock Brake System ABS
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely, refer to page 112.
Electronic brake-force distribution
The system controls the brake pressure in the
rear wheels to ensure st able braking behavior.
Dynamic Brake Control DBC
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressu re on the brake for the
duration of the full braking application.
Dynamic Stability Control DSC
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. The system also recognizes unstable
driving conditions, for example if the rear of the
car is about to swerve or if momentum is acting
at an angle past the front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical lim its by reducing engine
output and through braking actions at the indi-
vidual wheels. The laws of physics
cannot be repealed,
even with DSC. An appropriate driving
style always remains th e responsibility of the
driver. Therefore, do no t reduce the additional
s a f e t y m a r g i n a g a i n b y t a k i n g r i s k s , a s t h i s c o u l d
result in an accident. <
Deactivating/activating the DSC OFF
program
The program can be de activated via Dynamic
Driving Control, refer to DSC OFF.
For better control
The indicator lamp flashes: DSC con-
trols the drive forces and brake forces.
The indicator lamp lights up: DSC has
failed.
DTC Dynamic Traction Control
The concept
The DTC system and the TRACTION program
is a variant of the DSC in which forward momen-
tum is optimized.
The system ensures maximum forward
momentum on special road conditions, e.g.,
unplowed snowy roads, bu t driving stability is
limited.
It is therefore necessary to drive with appropri-
ate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:
> When driving in slus h or on uncleared,
snow-covered roads.
> When rocking the vehicle or driving off in
deep snow or on loose surfaces.
> When driving with snow chains.
Deactivating/activ ating DTC Dynamic
Traction Control
The system and program can be deactivated/
activated via Dynamic Driving Control.

Things to remember when driving
112
The risk of hydroplaning
increases with declin-
ing tread depth on the tire s, refer also to Mini-
mum tread depth on page 194.
Driving through water
Drive though calm water only if it is not
deeper than 1 ft/25 cm and at this height
no faster than walking speed, up to 6 mph/
10 km/h. Otherwise, the vehicle's engine, the
electrical systems and the transmission may be
damaged. <
Use the parking brake on inclines
On inclines, do not hold the vehicle for a
lengthy period using the clutch; use the
parking brake instead. Ot herwise greater clutch
wear will result. <
For more information about the drive-off assis-
tant, refer to page 80.
Braking safely
Your BMW is equipped with ABS as a standard
feature. Applying the brakes fully is the most
effective way of braking in situations in which
this is necessary. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pre ssure on the brake pedal
every few miles. Monitor traffic conditions to
ensure that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors. Full
braking efficiency will th en be available when
you need it.
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least br aking is required. Even light but consistent brak
e pressure can lead to
high temperatures, brake wear and possibly
even brake failure. <
You can increase the engine's braking effect by
shifting down, all the way to first gear if neces-
sary. This strategy helps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page 54.
7-gear sport automatic transmission with
dual clutch: Never drive with the trans-
mission in neutral or with the engine switched
off; otherwise, engine braking action will not be
present or there will be no power assistance to
the brakes or steering.
Manual transmission: Never drive with the
clutch held down, with the transmission in neu-
tral or with the engine switched off; otherwise,
engine braking action will not be present or
there will be no power a ssistance to the brakes
or steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals, otherwise peda l function could be
impaired. <
Corrosion on brake rotors
When the vehicle is driv en only occasionally,
during extended periods when the vehicle is not
used at all, and in op erating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminan ts accumulate on the
brake pads. This occurs because the minimum
pressure which must be exerted by the pads
during brake applications to clean the rotors is
not reached.
Should corrosion form on the brake rotors, the
brakes will tend to re spond with a pulsating
effect that even extended application will fail
to cure.
When the vehicle is parked
Condensation forms wh ile the automatic cli-
mate control is in operation, and then exits
under the vehicle. Traces of condensed water
under the vehicle are therefore normal.

Mobility
195Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
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 ... 0709 means that the tire was manufac-
tured in week 7 of 2009.
Run-Flat Tires
The symbol identifying Run-Flat Tires is a circle
with the letters RSC on the sidewall.
Run-Flat Tires comprise a conditionally self-
supporting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used su bject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page 81.
New wheels and tires
Have new wheels and tires installed only
by your BMW center or tire shop that
works according to BMW repair procedures
with correspondingly trai ned personnel. If this
work is not carried out properly, there is a dan-
ger of subsequent dama ge and related safety
hazards. Make sure that the new wheels are bal-
anced. <
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 casi ng 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 official size ratings could
actually have different dimensions, which could
lead to body contact and 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 com-
bination 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 TPM.
To maintain good handling and vehicle
response, use only tires of a single brand and
tread configuration. After a tire has been dam-
aged, mount the previous wheel and tire combi-
nation 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 Monitor may not be able to detect
a puncture, refer to page 82. Your BMW center
will be glad to advise you.

Giving and receiving assistance
214
First aid pouch*
Some of the articles contained in the first aid
pouch have a limited service life. Therefore,
check the expiration dates of the contents reg-
ularly and replace any items in good time, if nec-
essary.
The first aid pouch is loca ted in the lateral stor-
age compartment behind the seats.
Warning triangle*
The warning triangle is lo cated in a holder in the
luggage compartment lid. Press the tabs to take
it out.
Jump starting
If the car's own battery is flat, your BMW's
engine can be starte d by connecting two
jumper cables to another vehicle's battery. You
can also use the same method to help start
another vehicle. Only use jumper cables with
fully-insulated clamp handles.
Do not touch any elec trically live parts
when the engine is runn ing, or a fatal acci-
dent may occur. Carefully adhere to the follow-ing sequence, both to pr
event damage to one or
both vehicles, and to guard against possible
personal injuries.<
Preparation
1. Check whether the battery of the other
vehicle has a voltage of 12 volts and
approximately the same capacitance in Ah.
This information can be found on the
battery.
2. Switch off the engine of the assisting
vehicle.
3. Switch off any consumers in both vehicles.
There must not be any contact between
the bodies of the tw o vehicles, otherwise
there is a danger of shorting. <
Connecting jumper cables
Connect the jumper cables in the correct
order, so that no sparks which could
cause injury occur. <
Your BMW has a jump-starting connection in
the engine compartment which acts as the bat-
tery's positive terminal, refer also to the Engine
compartment overview on page 198. The cap is
marked with +.
1. Pull the cap of the BMW jump-starting con-
nection up to remove.
2. Attach one terminal clamp of the plus/+
jumper cable to the positive terminal of the
battery or a starting-aid terminal of the vehi-
cle providing assistance.
3. Attach the second te rminal clamp of the
plus/+ jumper cable to the positive terminal
of the battery or a star ting-aid terminal of
the vehicle to be started.

Everything from A to Z
230
Everything from A to Z
Index
"..." Identifies Control Display texts used to select
individual functions and
refers you to the page where
these texts can be found.
A
ABS Antilock Brake System 78
Acceleration assistant, refer to Launch Control 58
Accident, refer to Sending an Emergency Request 213
Activated-charcoal filter for
automatic climate
control 97
Adaptive Head Light 89
Additional connection of the music player in the mobile
phone 158
Additives
– coolant 200
Address for navigation,
entering 119
Adjusting temperature inside the car, refer to Air
conditioner 93
Adjusting temperature inside the car, refer to Automatic
climate control 95
Adjusting the thigh support 42
Adjusting the tone during audio operation, refer to
Tone control 138
Airbags 85
– indicator/warning lamp 87
– sitting safely 41
Air conditioner 92 Air conditioning mode
– air conditioner
93
– automatic climate control 95
– ventilation 94,97
Air distribution
– automatic 96
– individual 93
– manual 93
Air flow rate 93,96
Airing, refer to Ventilation 94
Airing, refer to Ventilation 94,97
Air outlets, refer to Air vents 92
Air pressure, refer to Tire
inflation pressure 190
Air recirculation, refer to Recirculated-air
mode 93,97
Air supply
– air conditioner 93
– automatic climate control 95
– ventilation 94,97
Air vents 92
AKI, refer to Fuel specifications 189
Alarm system 33
– avoiding unintentional alarms 34
–

interior motion sensor 34
– switching off an alarm 34
– tilt alarm sensor 34
Albums of music
collection 155
All-season tires, refer to Winter tires 196
AM, waveband 141
Ambient air, refer to Recirculated-air
mode 93,97
Antenna for mobile phone 164Antifreeze
– coolant
200
– washer fluid 61
Antilock Brake System ABS 78
Anti-theft alarm system, refer
to Alarm system 33
Anti-theft system 29
– for lug bolts, refer to Lug bolt
lock 211
Approved axle loads, refer to Weights 222
Approved gross vehicle weight, refer to Weights 222
Armrest, refer to Center
armrest 102
Arrival time, refer to Computer 66
Ashtray
– front 104
Assistance systems, refer to
Driving stability control
systems 78
AUC automatic recirculated-
air control 97
Audio 138
– controls 138
– switching on/off 138
– tone control 138
– volume 138
Audio device, external 102
Automatic
– air distribution 96
– air flow rate 96
– cruise control 61
– headlamp control 88
Automatic car washes 204
Automatic climate control 92
– automatic air distribution 96
Automatic curb monitor 46
Automatic recirculated-air control AUC 97

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

Everything from A to Z
240
Roadside parking lamps
90
Roadworthiness test, refer to
Service requirements 69
Roof load capacity 222
Rope, refer to Tow-starting,
towing away 216
Rotary/pushbutton, refer to iDrive 16
Route 128,129
– bypassing sections 129
– changing 128
– changing criteria 128
– displaying streets or towns/
cities 129
– map display 130
– selecting 128
Route instructions, refer to Destination guidance
through voice
instructions 129
Route map, refer to Map display 130
Route section, changing 129
Route selection 128
RSC Runflat System
Component, refer to Run-
Flat Tires 195
Runflat System Component
RSC, refer to Run-Flat
Tires 195
Run-Flat Tires 195
– continuing driving with a damaged tire 82
– flat tire 81
– Flat Tire Monitor 81
– new tires 195
– replacing 195
– tire inflation pressure 190
– winter tires 196
S
Safety-belt height
adjustment 45
Safety belts 44
– damage 45
– indicator/warning lamp 45
– reminder 45
– sitting safely 41 Safety systems
– airbags
85
– Antilock Brake System ABS 78
– brake system 78
– driving stability control systems 78
– Dynamic Stability Control
DSC 78
– safety belts 44
Safety tires, refer to Run-Flat
Tires 195
Satellite radio 144
– enabling channel 144
– selecting channel 145
– storing channel 145
Saving fuel 110
Screen, refer to iDrive controls 16
Screw thread for tow fitting 215
SDARS, refer to Satellite
radio 144
Seat adjustment
– electric 42
– mechanical 42
Seat and mirror memory 43
Seat belt reminder, refer to
'Fasten safety belts'
reminder 45
Seat heating 43
Seats 41
– adjusting electrically 42
– adjusting the seats 42
– heating 43
– memory, refer to Seat and mirror memory 43
– saving a setting, refer to Seat and mirror memory 43
– sitting safely 41
Securing cargo 106
Securing the vehicle
– from inside 32
– from outside 29
Selecting new scale for navigation 130
Selector lever 56
– automatic transmission with Steptronic 54 Selector lever lock, refer to
Changing selector lever
positions, shiftlock 54
Selector lever positions
– automatic transmission with
Steptronic 54
Service, refer to Roadside Assistance 213
Ser
vice car, refer to Roadside
Assistance 213
Service data in the remote
control 202
Service Interval Display, refer
to Condition Based Service
CBS 202
Service Request 183
Service requirement display, refer to Condition Based
Service CBS 202
Service requirements 69
Services status 184
Servotronic 85
Settings
– changing on Control Display 75
– clock, 12h/24h mode 72
– DVD 149
– language 75
Settings and information 68
Shifting 57
Shifting, sport automatic
transmission 57
Shifting gears
– automatic transmission with
Steptronic 54
– manual transmission 53
Shiftlock
– automatic transmission, refer to Changing selector
lever positions 54
Shift paddles on steering wheel 57
Short commands for the voice
activation system 223
Short route in navigation, refer to Selecting route 128
Side airbags 85