2010 BMW Z4 ROADSTER SDRIVE35I exhaust

Notes
6 Installation and operation of accessories not
approved by BMW, such as alarms, radios,
amplifiers, radar detectors, wheels, suspension
components, brake dust shields, telephones,
including operation of any mobile phone from
within the vehicle without using an externally
mounted antenna, or transceiver equipment, for
instance, CBs, walkie-talkies, ham radio or sim-
ilar accessories, may cause extensive damage
to the vehicle, compromise its safety, interfere
with the vehicle's electrical system or affect the
validity of the BMW Limited Warranty. See your
BMW center for additional information.<
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any automotive
repair establishment or individual using any cer-
tified automotive part.<
California Proposition 65 warning
California law requires us to issue the following
warning:
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the interior fur-
nishings in a vehicle, contain or emit chemicals
known to the State of California to cause cancer
and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
Battery posts, terminals and related accesso-
ries contain lead and lead compounds. Wash
your hands after handling.
Used engine oil contains chemicals that have
caused cancer in laboratory animals. Always
protect your skin by washing thoroughly with
soap and water.<
Service and warranty
We recommend that you read this publication
thoroughly.
Your BMW is covered by the following war-
ranties:
>New Vehicle Limited Warranty
>Rust Perforation Limited Warranty
>Federal Emissions System Defect Warranty
>Federal Emissions Performance Warranty
>California Emission Control System Limited
Warranty
Detailed information about these warranties is
listed in the Service and Warranty Information
Booklet for US models or in the Warranty and
Service Guide Booklet for Canadian models.
Your vehicle has been specifically adapted and
designed to meet the particular operating con-
ditions and homologation requirements in your
country and continental region in order to
deliver the full BMW driving pleasure while the
vehicle is operated under those conditions. If
you wish to operate your vehicle in another
country or region, you may be required to adapt
your vehicle to meet different prevailing operat-
ing conditions and homologation requirements.
You should also be aware of any applicable war-
ranty limitations or exclusions for such country
or region. In such case, please contact Cus-
tomer Relations for further information.
Reporting safety defects
For US customers
The following only applies to vehicles owned
and operated in the US.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration,
NHTSA, in addition to notifying BMW of North
America, LLC, P.O. Box 1227, Westwood,
New Jersey 07675-1227, Telephone 1-800-
831-1117.

At a glance
13Reference
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Indicator and warning lamps
The concept
Indicator and warning lamps can light up in a
variety of combinations and colors.
Some lamps are checked for proper functioning
and thus come on briefly when the engine is
started or the ignition is switched on.
Explanatory text messages
Text messages at the upper edge of the Control
Display explain the meaning of the displayed
indicator and warning lamps.
You can call up more information, e.g., on the
cause of a malfunction and on how to respond,
via Check Control, refer to page73.
In urgent cases, this information will be shown
as soon as the corresponding lamp comes on.
Indicator lamps without text messages
The following indicator lamps notify you that
certain functions are active:
High beams/headlamp flasher90
Lamp flashes:
DSC or DTC is regulating the propul-
sive forces in order to maintain driving
stability78
Parking brake set52
Canada: Parking brake set52
Engine malfunction with adverse
effect on exhaust emissions207
Canada: Engine malfunction with
adverse effect on exhaust
emissions207

Controls
51Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Starting the engine
Do not run the engine in enclosed areas;
otherwise, the inhalation of toxic exhaust
gases can cause loss of consciousness and
death. The exhaust gases contain carbon mon-
oxide, an odorless and colorless, but highly
toxic gas. Never leave an unattended vehicle
with the engine running; otherwise, such a vehi-
cle represents a potential safety hazard.
Before leaving the car with the engine running,
place the transmission in neutral or move the
selector lever to position P and set the parking
brake to prevent the car from moving.<
Avoid frequent starting in quick succes-
sion as well as repeated start attempts in
which the engine does not start. Otherwise, the
fuel is not burned or incompletely burned and
there is a danger of overheating and damaging
the catalytic converter.<
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
Manual transmission
Remote control in the ignition lock or, with
Comfort Access, inside the vehicle, refer
to page34.
1.Depress the brake.
2.Depress the clutch and shift to neutral
position.
3.Press the start/stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the
engine has started.
Automatic transmission
Remote control in the ignition lock or, with
Comfort Access, inside the vehicle, refer
to page34.
1.Depress the brake.
2.Move the selector lever to position P.
3.Press the start/stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the
engine has started.
7-gear sport automatic transmission
with dual clutch
Remote control in the ignition lock or, with
Comfort Access, inside the vehicle, refer
to page34.
1.Depress the brake.
2.Press the start/stop button.
The engine starts, regardless of the current
selector lever position.

Controls overview
66
Cruising range
Displays the estimated cruising range available
with the remaining fuel. The range is calculated
on the basis of the way the car has been driven
over the last 18 miles/30 km and the amount of
fuel currently in the tank.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km; otherwise, engine functions are not
ensured and damage can occur.<
Average speed
Periods with the vehicle parked and the engine
switched off are not included in the calculations
of average speed.
With the trip computer, refer to page67, you
can have the average speed for another trip
displayed.
To reset average speed: press the button in the
turn indicator lever for approx. 2 seconds.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
With the trip computer, refer to page67, you
can have the average consumption for another
trip displayed.
To reset average fuel consumption: press the
button in the turn indicator lever for approx.
2seconds.
Current fuel consumption
Displays the current fuel consumption. This
allows you to see whether your current driving
style is conducive to fuel economy with mini-
mum exhaust emissions.
Displays on the Control Display
The computer can also be opened via iDrive.
1."Vehicle Info"
2."Onboard info" or "Trip computer"
Displays on the "Onboard info":
>Cruising range
>Distance from destination
>Estimated time of arrival if:
>A distance was manually entered into
the computer, refer to information
below.
>A destination was entered in the naviga-
tion system
*, refer to page121.

Driving tips
113Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
Drive defensively
Avoid unnecessary acceleration and braking
maneuvers. To do so, keep an adequate
distance to the forward vehicle. A defensive
and smooth driving style keeps fuel consump-
tion down.
Avoid high engine speeds
Only use first gear when setting off. In second
and higher gears, accelerate without hesitation
or pauses. When accelerating, shift up before
reaching high engine speeds.
When you reach the desired speed, shift into
the highest applicable gear and drive with the
engine speed as low as possible and at a con-
stant speed.
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
Coasting
When approaching a red light, take your foot off
the accelerator and coast to a stop in the high-
est applicable gear.
On a downhill slope, take your foot off the accel-
erator and coast in a suitable gear.
The fuel supply is interrupted when coasting.
Switch off the engine during lengthy
stops
Switch off the engine when stopping for lengthy
periods, e.g., at traffic lights, railroad crossings
or in traffic congestion. You achieve fuel sav-
ings even if standing time is as short as approx.
4 seconds.
Switch off functions you do not need at
the moment
Functions such as the air conditioner and the
seat or rear window heating draw large amounts
of power and consume additional fuel. Espe-
cially in city traffic and in stop-and-go driving
they have a considerable impact. Therefore,
switch these functions off when they are not
really needed.
Have the vehicle serviced
Have the vehicle serviced regularly to achieve
good economy and a long vehicle life. BMW
recommends having the vehicle serviced at a
BMW center. Also note the BMW service sys-
tem, refer to page206.
General driving notes
Close the luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is closed. Other-
wise, exhaust fumes could enter the interior of
the vehicle.<
If the vehicle must be driven with the luggage
compartment lid open:
1.Close all windows.
2.Greatly increase the air volume of the
automatic climate control system, refer
to page97.
Hot exhaust system
In all vehicles, extremely high tempera-
tures are generated in the exhaust sys-
tem. Do not remove the heat shields installed
adjacent to various sections of the exhaust sys-
tem, and never apply undercoating to them.
When driving, standing at idle and while park-
ing, take care to avoid possible contact
between the hot exhaust system and any highly
flammable materials such as hay, leaves, grass,
etc. Such contact could lead to a fire, with the
risk of serious personal injuries and property
damage. Do not touch hot exhaust tail pipes.
Otherwise, there is a risk of burns.<
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a wedge
of water can form between tires and road sur-
face. This situation, known as hydroplaning,
means that the tire can completely lose contact
with the road surface, so that neither the car can
be steered nor the brake be properly applied.<

Mobility
207Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Socket for Onboard
Diagnosis OBD
Primary components that make up exhaust
emissions can be checked by a device via the
OBD socket.
This socket is located under a cover on the left
on the driver's side.
Exhaust emission values
The warning lamp lights up:
The vehicle emissions are raised. The
trip can be continued. Have the car
checked as soon as possible.
Canadian models display this warn-
ing lamp.
The lamp flashes under certain condi-
tions. This indicates excessive misfiring in the
engine. If this happens, you should reduce your
speed and visit your nearest BMW center as
soon as possible. Severe engine misfiring can
quickly lead to serious damage of emissions-
related components, especially the catalytic
converter.
The warning lamp comes on if the gas
cap is not properly tightened and the
OBD system assumes that fuel vapor
is escaping. If the gas cap is then tightened, the
warning lamp should go out within a few days.
Data recorders
Your vehicle may be equipped with one or sev-
eral measuring or diagnostic modules or a
device for recording or sending certain vehicle
data or information. In addition, if you have
signed a service contract for BMW Assist, cer-
tain vehicle data may be transmitted or
recorded in order to facilitate the corresponding
services.

Everything from A to Z
238 Call
– accepting174
– ending174
– rejecting174
Calling, refer to Phone
numbers, dialing174
Can holders, refer to
Cupholders105
Capacities228
Capacity of the cargo area228
Car battery, refer to Vehicle
battery216
Car care, refer to Care208
Care208
– automatic car washes208
– care products208
– carpets210
– CD/DVD drives211
– chrome parts210
– displays211
– exterior208
– fine wood parts211
– headlamps209
– high-pressure washer209
– interior210
– leather210
– light-alloy wheels210
– paintwork209
– plastic parts211
– retractable hardtop209
– rubber seals210
– safety belts211
– sensors and cameras211
– upholstery and cloth
trim210
– washing the car
manually209
– windows209
Cargo, securing116
Cargo area
– capacity228
– Comfort Access35
– lamp, refer to Interior
lamps92
– opening from inside32
– opening from outside33Cargo loading
– securing cargo116
– stowing cargo116
– vehicle115
Car jack
– jacking points215
Car key, refer to Integrated
key/remote control28
Car phone
– installation location, refer to
Center armrest
104
– refer to separate Owner's
Manual
Car phone, refer to
Telephone170
Car radio, refer to Radio143
Car shampoo211
Car wash115
– with Comfort Access36
Car wash, refer to the Caring
for your vehicle brochure
Catalytic converter, refer to
Hot exhaust system113
CBS Condition Based
Service206
CD, audio playback152
CD/DVD changer
– filling or emptying the
magazine156
CD changer151,155
– controls140
– fast forward/reverse153
– random play sequence152
– selecting a track152
– switching on/off140
– tone control140
– volume140
CD player151
– controls140
– fast forward/reverse153
– random play sequence152
– selecting a track152
– switching on/off140
– tone control140
– volume140
Center armrest104
Center brake lamp
– replacing bulb215Center console, refer to
Around the center
console14
Central locking
– from inside32
– from outside29
Central locking system29
– Comfort Access34
– setting unlocking
characteristics29
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs212
Changing the measurement
units on the Control
Display68
Changing wheels215
Chassis number, refer to
Engine compartment202
Check Control73
Child restraint systems48
Child seats, refer to
Transporting children
safely48
Chrome parts211
Chrome polish211
Cleaning headlamps61
– washer fluid61
Cleaning your BMW, refer to
Care208
Clock64
– 12h/24h mode72
– setting the time and date72
– setting time71
Closing
– from inside32
– from outside29
Cockpit10
Cold start, refer to Starting the
engine51
Combined instrument, refer to
Instrument cluster12
Comfort Access34
– replacing the battery36
– what to observe before
entering a car wash36
Comfort access, refer to
Comfort Access34

Reference 241
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Exhaust system, refer to Hot
exhaust system113
Exterior mirrors45
– adjusting45
– automatic dimming
feature46
– automatic heating46
– folding in and out45
External audio device104
Eyes
– for tow-starting and towing
away220
– for tying down loads116
F
Failure messages, refer to
Check Control73
Failure of an electrical
consumer216
False alarm
– avoiding unintentional
alarm34
– switching off an alarm34
Fastening safety belts, refer to
Safety belts44
Fastest route for
navigation130
Fast forward
– CD changer153
– CD player153
Fault
– parking brake53
Filter
– refer to Microfilter/activated-
charcoal filter for automatic
climate control98
– refer to Microfilter for air
conditioner95
First aid pouch219
Fixture for remote control,
refer to Ignition lock50
Flash when locking/
unlocking31
Flat tire
– run-flat tires199
– Tire Pressure Monitor
TPM82Flat Tire Monitor FTM81
– indicating a flat tire81
– indicator/warning lamp81
– initializing the system81
– snow chains81,200
– system limits81
Flat tires, refer to Tire
condition198
Fluid reservoir, refer to
Washer fluid reservoir61
FM, waveband143
Folding in the mirrors, before
driving into a car wash45
Footbrake, refer to Braking
safely114
Footwell lamps, refer to
Interior lamps92
Forward gear, engaging, refer
to Transmission
positions56
For your own safety5
Free memory capacity, music
collection161
Front airbags85
FTM, refer to Flat Tire
Monitor81
Fuel193
– average consumption66
– gauge65
– high-quality brands193
– quality193
– specifications
193
– tank contents, refer to
Capacities228
Fuel clock, refer to Fuel
gauge65
Fuel display, refer to Fuel
gauge65
Fuel filler flap192
– releasing in the event of
electrical malfunction192
Fuses216
G
Garage door opener, refer to
Integrated universal remote
control100Gasoline
– refer to Average
consumption66
Gasoline, refer to Required
fuel193
Gasoline display, refer to Fuel
gauge65
Gas station
recommendations131
Gear display, refer to Displays
in the instrument cluster56
Gear indicator, automatic
transmission with
Steptronic53
Gears, changing57
Gearshift lever
– automatic transmission with
Steptronic54
– manual transmission53
Gearshifts
– automatic transmission with
Steptronic54
– manual transmission53
General driving notes113
Glove compartment103
GPS navigation, refer to
Navigation system120
Grills, refer to Air vents93
Gross vehicle weight, refer to
Weights228
H
Handbrake, refer to Parking
brake52
Hands-free system14
Hazard warning flashers14
HD Radio144
Head airbags85
Headlamp control,
automatic88
Headlamp flasher59
– indicator lamp11,13
Heated
– mirrors46
– rear window95,98
– seats43