2009 BMW Z4 SDRIVE30I ROADSTER catalytic converter

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Starting the engine
Do not run the engine in closed rooms,
otherwise the inhalation of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the
engine running, otherwis e such a vehicle repre-
sents a potential safety hazard.
Before leaving the car wi th 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 repeat ed start attempts in
which the engine does no t 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 con-
venient access, inside the vehicle, refer to
page 35.
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 con-
venient access, inside the vehicle, refer to
page 35.
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 con-
venient access, inside the vehicle, refer to
page 35.
1. Depress the brake.
2. Press the start/stop button.
The engine starts, regardless of the current
selector lever position.

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Fuel specifications
Do not fill the tank with leaded fuel as this
would cause permanent damage to the
catalytic converter.
Do not fill the tank with E85, i.e. fuel containing
85 % ethanol, nor with Fl exFuel. Otherwise, the
engine and fuel suppl y system will be dam-
aged. <
Required fuel
Super Premium Gasoline/AKI 91
This gasoline is hi ghly recommended.
However, you may also use gasoline with less
AKI. The minimum AKI Rating is:
> Z4 sDrive30i: 87
> Z4 sDrive35i: 89
If you use gasoline with this minimum AKI Rat-
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
Do not use any gasoline below the speci-
fied minimum fuel grade. Otherwise the
engine could be damaged. <
Use high-quality brands
Field experience has indicated significant dif-
ferences in fuel quality: volatility, composition,
additives, etc., among ga solines offered for sale
in the United States and Canada. Fuels contain-
ing up to and including 10 % ethanol or other
oxygenates with up to 2.8 % oxygen by weight,
that is, 15 % MTBE or 3 % methanol plus an
equivalent amount of co-solvent, will not void
the applicable warranti es with respect to
defects in materials or workmanship.
The use of poor-quality fuels may result in
driveability, starting and stalling problems
especially under certai n environmental condi-
tions such as high ambient temperature and
high altitude.
Should you encounter driveability problems
which you suspect could be related to the fuel
you are using, we recommend that you respond
by switching to a recognized high-quality brand such as gasoline
that is advertised as Top Tier
Detergent Gasoline.
Failure to comply with these recommendations
may also result in un scheduled maintenance. <

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This socket is located on the driver's side to the
left, on the bottom of the instrument panel
underneath a cover.
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
warning 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, espe cially 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 ca p 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 fa cilitate the corresponding
services.

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7-gear sport automatic transmission with dual
clutch:
Have the BMW transported with a tow truck
with a so-called lift bar or on a flat bed.
Tow-starting
Avoid tow-starting the vehicle whenever possi-
ble; instead, jump-start the engine, refer to
page214. Vehicles with a catalytic converter
should only be tow-st arted when the engine
is cold.
Vehicles with an automatic transmission or 7-
gear sport automatic transmission with dual
clutch cannot be tow-started at all.
1. Switch on hazard warning flashers, comply
with local regulations.
2. Switch on the ignition, refer to page 50.
3. Shift into 3rd gear.
4. Have the vehicle tow-started with the clutch
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch completely again.
5. Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6. Have the vehi cle checked.

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