2009 BMW Z4 SDRIVE30I ROADSTER sport mode

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.

Everything from A to Z
232
Care
204
– automatic car washes 204
– care products 204
– carpets 206
– CD/DVD drives 207
– chrome parts 206
– displays 207
– exterior 204
– fine wood parts 207
– headlamps 205
– high-pressure washer 205
– interior 206
– leather 206
– light-alloy wheels 206
– paintwork 205
– plastic parts 207
– retractable hardtop 205
– rubber seals 206
– safety belts 207
– sensors and cameras 207
– upholstery and cloth trim 206
– washing the car manually 205
– windows 205
Cargo, securing 114
Cargo bay
– capacity 222
– convenient access 35
– lamp, refer to Interior lamps 90
– opening from inside 33
– opening from outside 33
Cargo loading
– securing cargo 114
– stowing cargo 114
– vehicle 113
Car jack
– jacking points 211
Car key, refer to Integrated
key/remote control 28
Car phone
– installation location, refer to
Center armrest 102
– refer to separate Owner's Manual
Car phone, refer to Telephone 164
Car radio, refer to Radio 141Car shampoo
207
Car wash 113
– with convenient access 36
Car wash, refer to the Caring for your vehicle brochure
Catalytic converter, refer to Hot exhaust system 111
CBS Condition Based
Service 202
CD, audio playback 146
CD/DVD changer 14
6
– controls 138
– fast forward/reverse 148
– random sequence 147
– switching on/off 138
– tone control 138
– volume 138
CD/DVD player 146
– controls 138
– fast forward/reverse 148
– random sequence 147
– switching on/off 138
– tone control 138
– volume 138
CD changer
– selecting a track 146
CD player
– selecting a track 146
Center armrest 102
Center brake lamp
– replacing bulb 211
Center console, refer to Around the center
console 14
Central locking
– from inside 32
– from outside 29
Central locking system 29
– convenient access 35
– setting unlocking
characteristics 29
Changes, technical, refer to For your own safety 5
Changing bulbs, refer to Lamps and bulbs 208
Changing the measurement
units on the Control
Display 68
Changing wheels 211Chassis number, refer to
Engine compartment 198
Check Control 73
Child-restraint systems 48
Child seats, refer to
Transporting children
safely 48
Chrome parts 207
Chrome polish 207
Cigarette lighter, refer to Lighter 104
Cleaning headlamps 60
– washer fluid 61
Cleaning your BMW, refer to Care 204
Clock 64
– 12h/24h mode 72
– setting the time and date 72
– setting time 71
Closing
– from inside 32
– from outside 29
Cockpit 10
Cold start, refer to Starting

the
engine 51
Combined instrument, refer to Instrument cluster 12
Comfort access, refer to
Convenient access 35
Comfort area, refer to Around the center console 14
Compartment for remote control, refer to
Ignition lock 50
Compass 100
Computer 65
– displays on Control
Display 66
Computer, refer to iDrive 16
Concierge service 179
Condensation, refer to When the vehicle is parked 112
Condition Based Service
CBS 202
Configuring settings, refer to Personal Profile 28
Confirmation signals for locking/unlocking the
vehicle 31

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