fuel consumption BMW 335I CONVERTIBLE 2009 E93 Owner's Manual

Everything under control
70
Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addi-
tion, a message will appear on the Control Dis-
play.
Check coolant level, refer to page210.
Engine oil temperature*
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 2107/1006 and approx. 3007/
1506.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 15.9 US gallons/
60 liters.
You can find information on refueling on
page192.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
Reserve
Once the fuel level has fallen to the reserve
zone, a message briefly appears on the Control
Display and the cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control Dis-
play.
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.<
Computer
Displays in the instrument cluster
Calling up information
Press the button in the turn indicator lever.
The following items of information are dis-
played in the order listed:
>Cruising range
>Average speed
>Average fuel consumption
>Current fuel consumption
*
>No information
To set the corresponding units of measure,
refer to Units of measure on page72.
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.

Controls
71Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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 page72, you
can have the average speed for another trip dis-
played.
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 page72, 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
You can also open the computer via iDrive; for
operating principle refer to page16.
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 page125.
Displays on the "Trip computer":
>Departure time
>Trip duration
>Trip distance
Both displays show:
>The average speed and
>the average fuel consumption.
Resetting the fuel consumption and
speed
You can reset the values for average speed and
average consumption:
1.Select the respective menu item and press
the controller.
2.Press the controller again to confirm your
selection.

Everything under control
72
Resetting the Trip computer
1."Vehicle Info"
2."Trip computer"3.Select
>"Reset" all values are reset
>"Automatically reset" all values are reset
approx. 4 hours after the engine is
switched off
Settings and information
Operating principle
1Button for:
>Selecting display
>Setting values
2Button for:
>Confirming selected display or set val-
ues
>Calling up computer information703When the lights are on: instrument lighting
brightness95
4Calling up Check Control77
5Checking engine oil level207
6Setting the time75
7Setting the date76
8Viewing service requirement display73
Exiting displays
The outside-temperature reading and the time
reappear when you press button2 or if you
make no entries within approx. 15 seconds. If
required, complete the current setting first.
Units of measure
Setting the units of measure
You can change the units for fuel consumption,
route/distance, temperature and pressure.
iDrive, for operating principle refer to page16.

Things to remember when driving
116
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. Please follow the instructions below
in order to achieve the optimal service life and
economy of operation for your vehicle.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at varying engine and road speeds, but do
not exceed an engine speed of 4500 rpm or a
road speed of 100 mph/160 km/h.
Avoid full-throttle operation and use of the
transmission's kick-down mode.
After driving 1,200 miles/2,000 km
Engine and vehicle speeds can be gradually
increased.
Tires
Due to technical factors associated with their
manufacture, tires do not achieve their full trac-
tion potential until after an initial break-in
period. Therefore, drive cautiously during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive cautiously during this break-in
period.
Clutch
The function of the clutch reaches its optimal
level only after a distance driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
The same break-in procedures should be
observed if any of the components mentioned
above have to be renewed in the course of the
vehicle's operating life.
Saving fuel
The fuel consumption of your vehicle depends
on several factors. You can lower fuel consump-
tion and the environmental impact by taking
certain measures, adjusting your driving style
and having the vehicle serviced regularly.
Remove any unneeded cargo
Additional weight increases fuel consumption.
Remove any mounted parts after you
have finished using them
Remove unneeded additional mirrors, the roof
rack and the rear luggage rack after use.
Mounted parts affect the vehicle's aerodynam-
ics and increase fuel consumption.
Close the windows and glass roof
An open glass roof or window causes higher air
resistance and thus increases fuel consump-
tion.
Check tire inflation pressure regularly
Check the tire inflation pressure at least twice a
month and before embarking on a long journey,
and correct it if necessary.
Low tire inflation pressure causes higher rolling
resistance and thus increases fuel consumption
and tire wear.
Set off immediately
Do not let the engine warm up while the car is
still standing, but set off immediately at moder-
ate engine speed. This is the fastest way for the
cold engine to reach its operating temperature.

Driving tips
117Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
Drive defensively
Avoid unnecessary acceleration and braking
maneuvers. To do so, keep an adequate dis-
tance to the forward vehicle. A defensive and
smooth driving style keeps fuel consumption
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 congestions. 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 page211.
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 and the glass roof.
2.Greatly increase the air volume of the auto-
matic climate control system, refer to
page99.
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.<

Reference 243
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
AUTO program for automatic
climate control98
AUX-IN
– port106
AUX-IN port163
Average fuel consumption71
– setting the units72
Average speed71
Avoid highways in
navigation135
Avoiding unintentional
alarms33
Axle loads, refer to
Weights235
B
Backrest contour, refer to
Lumbar support44
Backrests, refer to Seat
adjustment43
Backrest width adjustment44
Back seats
– refer to Rear seats45
Backup lamps
– replacing bulb220,221
Backup lamps, refer to Tail
lamps220
Bag holder110
Band-aids, refer to First-aid
pouch225
Bar, refer to Towing
methods227
Base plate for telephone or
mobile phone
– refer to Snap-in adapter179
– refer to Snap-in adapter in
the center armrest storage
compartment106
Bass, tone setting144
Battery222
– charging222
– disposal35,222
– jump starting225
– remote control26
– temporary power failure222
Battery for mobile phone179Battery renewal
– remote control35
– remote control for vehicle35
Being towed227
Belt hand-over49
– pinch protection system49
Belts, refer to Safety belts48
Belt tensioner, refer to Safety
belts48
Beverage holders, refer to
Cup holders107
Blinds, refer to Roller sun
blinds105
Blower, refer to Air flow
rate99
Bluetooth, activating/
deactivating172
Bluetooth, refer to separate
Owner's Manual
BMW
– car shampoo215
BMW Assist, activating184
BMW Assist183
BMW center188
BMW Homepage4
BMW Maintenance
System211
BMW Search184
BMW webpage
4
Bottle holders, refer to Cup
holders107
Brake assist, refer to Dynamic
Brake Control DBC83
Brake fluid, refer to Service
requirements73
Brake force display89
Brake lamps
– brake force display89
– replacing bulb220,221
Brake pads116
– breaking in116
Brake rotors118
– brakes116
– breaking in116Brakes
– ABS83
– BMW Maintenance
System211
– brake force display89
– breaking in116
– parking brake56
– service requirements73
Brakes, refer to Braking
safely118
Brake system116
– BMW Maintenance
System211
– breaking in116
– disc brakes118
Breakdown services, refer to
Roadside Assistance224
Breaking in the clutch116
Breaking in the differential,
refer to Engine and
differential116
Break-in period116
Brightness of Control
Display80
Bulb changing, refer to Lamps
and bulbs218
Button for starting the engine,
refer to Start/stop button55
Buttons on the steering
wheel11
C
California Proposition 65
warning6
Call
– accepting173
– ending174
– rejecting174
Calling, refer to Phone
numbers, dialing174
Can holders, refer to Cup
holders107
Capacities235
Capacity of the cargo bay235
Car battery, refer to Vehicle
battery222
Car care, refer to Care213

Reference 245
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Confirmation signals for
locking/unlocking the
vehicle29
Congestion
– refer to Route, bypassing
sections136
Connecting vacuum cleaner,
refer to Connecting
electrical appliances108
Consumption, refer to
Average consumption71
Consumption display
– average consumption71
Control Center, refer to
iDrive16
Control Display, refer to
iDrive16
– adjusting brightness80
– switching on/off19
Controller, refer to iDrive16
Controls and displays10
Control unit, refer to iDrive16
Convenient access34
– replacing the battery35
Convenient loading in
convertible28
Convenient operation
– glass roof28
– glass roof with convenient
access34
– retractable hardtop28
– windows28
– windows with convenient
access34
Convertible
– bag holder110
– convenient loading28
– enlarging cargo bay109
– folding down rear
backrest110
– retractable hardtop38
– rollover protection
system92
– securing cargo120
– stowing cargo119
Coolant209
– checking level210
Coolant temperature70
Cooling, maximum98Cooling fluid, refer to
Coolant209
Cooling system, refer to
Coolant209
Copyright2
Corner-illuminating lamps
– replacing bulbs219
Corner-illuminating lamps,
refer to Adaptive Head
Light94
Cornering lamps, refer to
Adaptive Head Light94
Correct tires204
Country codes DVD154
Courtesy lamps, refer to
Interior lamps96
Criteria for route135
Cross-hairs in navigation130
Cruise control61
– active63
– malfunction63
Cruising range70
Cup holders107
Curb weight, refer to
Weights235
Current playback of music
collection160
Current position
– displaying141
Customer Relations187
D
Dashboard, refer to
Cockpit10
Dashboard, refer to
Instrument cluster12
Dashboard lighting, refer to
Instrument lighting95
Data, technical232
– dimensions233
– engine232
– weights235
Data transfer188
Date
– date format77
– setting76
Daytime running lamps94
– replacing bulbs219DBC Dynamic Brake
Control83
Deactivating front passenger
airbags90
Deadlocking, refer to
Locking28
Defect
– door lock30
– fuel filler door192
– glass roof38
Destination, entering by town/
city name125
Destination address
– entering125,131
Destination for navigation
– entering by voice131
– entering via map130
– entry125
– home address128
– manual entry125
Destination guidance135
– bypassing a route
section136
– changing specified
route135
– continuing135
– starting135
– voice instructions136
– volume of voice
instructions137
Digital clock69
Digital compass104
Digital radio, refer to High
Definition Radio148
Dimensions233
Directional indicators, refer to
Turn signals59
Direction instructions, refer to
Voice instructions136
Directory for navigation, refer
to Address book127
Displacement, refer to Engine
data232
Display, refer to iDrive
controls16
"Display current location"141
Display lighting, refer to
Instrument lighting95

Reference 247
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Eyes
– for tow-starting and towing
away227
– for tying down loads120
F
Failure messages, refer to
Check Control77
Failure of an electrical
consumer223
False alarm
– avoiding unintentional
alarm33
– switching off an alarm33
Fastening safety belts, refer to
Safety belts48
Fastest route for
navigation135
Fast forward
– CD changer154
– CD player154
Filter
– refer to Microfilter/activated-
charcoal filter for automatic
climate control100
First aid pouch225
Fixture for remote control,
refer to Ignition lock55
Flash when locking/
unlocking29
Flat tire
– Run-Flat Tires204
– Tire Pressure Monitor
TPM86
Flat Tire Monitor FTM85
– indicating a flat tire86
– indicator/warning lamp86
– initializing the system85
– malfunction86
– snow chains85,205
– system limits85
Flat tires, refer to Tire
condition203
Fluid reservoir, refer to
Washer fluid reservoir61
FM, waveband147
Fog lamps95
– indicator lamp13,95Folding up the floor panel111
Footbrake, refer to Braking
safely118
Footwell lamps, refer to
Interior lamps96
For your own safety5
Four-wheel drive, refer to
xDrive84
Free memory capacity, music
collection161
Front airbags90
FTM, refer to Flat Tire
Monitor85
Fuel193
– average consumption71
– gauge70
– high-quality brands193
– quality193
– specifications193
– tank contents, refer to
Capacities235
Fuel clock, refer to Fuel
gauge70
Fuel display, refer to Fuel
gauge70
Fuel filler door192
– releasing in the event of
electrical malfunction192
Fuses223
G
Garage door opener, refer to
Integrated universal remote
control102
Gasoline
– refer to Average
consumption71
Gasoline, refer to Required
fuel193
Gasoline display, refer to Fuel
gauge70
Gear indicator, automatic
transmission with
Steptronic57
Gearshift lever
– automatic transmission with
Steptronic58
– manual transmission57Gearshifts
– automatic transmission with
Steptronic58
– manual transmission57
General driving notes117
Glass roof, electric37
– closing after electrical
malfunction38
– convenient operation28,30
– initializing37
– opening, closing37
– operation with convenient
access34
– pinch protection system37
– power failure37
– raising37
– remote control28
Glove compartment105
GPS navigation, refer to
Navigation system124
Grills97
Gross vehicle weight, refer to
Weights235
H
Handbrake, refer to Parking
brake56
Hands-free system14
Hazard warning flashers14
HDC Hill Descent Control84
HD radio, refer to High
Definition Radio148
Head airbags90
Headlamp control,
automatic93
Headlamp flasher59
– indicator lamp11,13
Head restraints44
– rear, removing46
– sitting safely42
Heated
– mirrors50
– rear window100
– seats47

Everything from A - Z
250 Mirrors49
– automatic curb monitor50
– exterior mirrors49
– heating50
– interior rearview mirror50
– memory, refer to Seat and
mirror memory47
Mirrors, folding in before
entering a car wash49
Mobile phone
– adjusting volume173
– connecting, refer to Mobile
phone, pairing170
– installation location, refer to
Center armrest106
– operation via iDrive173
– pairing170
– refer to separate Owner's
Manual
Mobile phone, installation
location, refer to Center
armrest106
Mobile phone, refer to
Telephone170
Mobile phone, refer to the
separate Owner's Manual
Modifications, technical, refer
to For your own safety5
Monitor, refer to iDrive
controls16
Monitoring system for tire
pressures, refer to Flat Tire
Monitor85
MP3 player, connecting, refer
to AUX-IN port163
MP3 player, connecting, refer
to USB-audio interface164
Multifunctional steering
wheel, refer to Buttons on
the steering wheel11
Multifunction switch
– refer to Turn signals/
headlamp flasher59
– refer to Wiper system60
Multimedia screen, refer to
iDrive16
Music, managing161
Music, playing160
Music, storing159Music collection159
– backup162
– importing162
Music player, connecting,
refer to AUX-IN port163
Music player, connecting,
refer to USB-audio
interface164
Music search160
N
Navigation announcements,
refer to Switching voice
instructions on/off136
Navigation data124
Navigation drive, location124
Navigation DVD124
Navigation system124
– address book127
– bypassing a route
section136
– continuing destination
guidance135
– destination entry125
– displaying current
position141
– entering a destination by
voice131
– entering a destination
manually125
– route list136
– selecting destination via
map130
– selecting route criteria135
– special destinations128
– starting destination
guidance135
– terminating destination
guidance135
– voice instructions136
– volume adjustment137
Neck support, refer to Head
restraints44
Nets, refer to Storage
compartments106
New tires204
North-facing map137
Nozzles97Number of cylinders, refer to
Engine data232
Nylon rope, refer to Tow
rope227
O
OBD socket, refer to Socket
for On-Board Diagnosis212
Octane ratings, refer to Fuel
specifications193
Odometer69
Oil, refer to Engine oil207
Oil consumption207
Oil level207
Old batteries, refer to
Disposal222
Onboard tool kit217
Opening and closing
– convenient access34
– from inside30
– from outside27
– using the door lock29
– via the remote control27
Options, selecting for
navigation135
Orientation menu, refer to
Start menu17
Outlets
– refer to Ventilation100
Output, refer to Engine
data232
Outside-air mode
– automatic climate control99
Outside-temperature
display69
– changing units of
measure72
– in computer72
Outside temperature
warning69
Overheated engine, refer to
Coolant temperature70
Overriding selector lever
lock59
Overview
– radio control144

Reference 255
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Towing226
– car with automatic
transmission226
– methods227
Towing and tow-starting226
Town/city, for navigation125
Tow rope227
Tow-starting226,228
TPM, refer to Tire Pressure
Monitor86
Track
– selecting on CD152
Traction control, refer to
Dynamic Stability Control
DSC83
Traffic bulletins
– categories139
Traffic bulletins, filtering139
Traffic bulletins for
navigation138
– during destination
guidance139
– in map display139
Traffic jam
– displaying traffic
bulletins138
Transmission
– automatic transmission with
Steptronic57
– manual transmission57
– overriding selector lever lock
for automatic transmission
with Steptronic59
Transmission interlock
– refer to Changing selector
lever position58
– refer to P Park58
Transporting children
safely52
Transport securing devices,
refer to Securing cargo120
Travel instructions,
refer to Voice
instructions136
Tread depth, refer to Minimum
tire tread203
Trip-distance counter, refer to
Trip odometer69
Triple turn signal activation60Trip odometer69
Turning circle, refer to
Dimensions233
Turn signal indicators
– indicator/warning lamp12
– replacing bulbs219
– triple turn signal60
Turn signals59
TV
– control elements144
– switching on/off144
– tone control144
– volume144
Tying down loads, refer to
Cargo loading120
U
Uniform Tire Quality Grading/
UTQR202
Units
– average consumption72
– temperature72
Universal garage door opener,
refer to Integrated universal
remote control102
Universal mobile phone
preparation package, refer
to separate Owner's Manual
Universal remote control102
Unlatching, refer to
Unlocking34
Unlocking
– from inside31
– from outside27
– luggage compartment lid34
– setting unlocking
characteristics27
– without remote control, refer
to Convenient access34
USB-audio interface164
V
VCD154Vehicle
– battery222
– breaking in116
– cargo loading119
– Identification Number, refer
to Engine compartment207
– measurements, refer to
Dimensions233
– parking56
– weight235
Vehicle jack222
Vehicle position, refer to
Displaying current
position141
Vehicle storage216
Ventilation100
– draft-free100
– in the rear100
Ventilation, refer to Climate97
Ventilation while at a
standstill100
Vents, refer to Ventilation100
Video menu154
Video playback154
Voice, refer to Destination
guidance through voice
instructions136
Voice commands
– overview22
– short commands236
Voice instructions from
navigation system136
– repeating137
– switching on/off136
– volume137
Volume144
– audio sources144
– fuel tank, refer to
Capacities235
– mobile phone173
– TV144
– voice instructions137
Volume balance, tone
setting145
W
Warm
– steering wheel51