2009 BMW 335I XDRIVE CONVERTIBLE heating

Things to remember when driving
118 The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page203.
Driving through water
Drive through water on the road only if it is
not deeper than 1 ft/30 cm, and then only
at walking speed at the most. 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. Otherwise greater clutch
wear will result.<
For more information about the drive-off assis-
tant, refer to page85.
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 pressure 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 then 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 braking is required. Even
light but consistent brake 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 page58.
Never drive with the clutch held down,
with the transmission 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.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals, otherwise pedal function could be
impaired.<
Corrosion on brake rotors
When the vehicle is driven only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminants 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 respond with a pulsating
effect that even extended application will fail to
cure.
When the vehicle is parked
Condensation forms while the automatic cli-
mate control is in operation, and then exits
under the vehicle. Traces of condensed water
under the vehicle are therefore normal.
Before driving into a car wash
General information on caring for your BMW
can be found on page213.

Driving tips
119Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
With convenient access and automatic
transmission
Insert the remote control into the ignition
switch.
The engine can be switched off when the selec-
tor lever is in position N. Refer also to page213.
Cargo loading
To avoid loading the tires beyond their
approved carrying capacity, never over-
load the vehicle. Overloading can lead to over-
heating and increases the rate at which damage
develops inside the tires. This can ultimately
result in a sudden blow-out.<
Make sure that no liquids are spilled or
leak from their containers in the cargo
bay, as this could result in damage to the vehi-
cle.<
Determining loading limit
1.Locate the following statement on your
vehicle's placard
*:
The combined weight of occupants
and cargo should never exceed
XXX kg or YYY lbs. Otherwise, overloading
can result in damage to the vehicle and
unstable driving conditions.<
2.Determine the combined weight of the
driver and passengers that will be riding in
your vehicle.
3.Subtract the combined weight of the driver
and passengers from XXX kilograms or YYY
pounds.
4.The resulting figure equals the available
amount of cargo and luggage load capacity. For example, if the YYY amount equals
1,400 lbs. and there will be five 150-lb. pas-
sengers in your vehicle, the amount of avail-
able cargo and luggage load capacity is
650 lbs:
1,400 lbs. minus 750 lbs. = 650 lbs.
5.Determine the combined weight of luggage
and cargo being loaded on the vehicle. That
weight may not safely exceed the available
cargo and luggage load capacity calculated
in step 4.
6.If your vehicle will be towing a trailer, part of
the load from your trailer will be transferred
to your vehicle. Consult the manual for
transporting a trailer to determine how this
may reduce the available cargo and luggage
load capacity of your vehicle.
Load
The permissible load is the total of the weight of
occupants and cargo/luggage. The greater the
weight of the occupants, the less cargo/lug-
gage can be transported.
Stowing cargo
>Position heavy objects as low and as far for-
ward as possible, ideally directly behind the
respective seat backrests.
>Cover sharp edges and corners.
>For very heavy cargo when the rear seat is
not occupied, secure each safety belt in the
opposite buckle.

Everything from A - Z
246 Displays
– on the Control Display16
Displays, refer to Instrument
cluster12
Displays and controls10
Disposal
– coolant209
– remote control battery35
– vehicle battery222
Distance control, refer to
Active cruise control63
Distance remaining to service,
refer to Service
requirements73
Distance warning, refer to
Park Distance Control
PDC82
Door key, refer to Remote
control with integrated
key26
Door lock29
Doors, emergency
operation30
DOT Quality Grades202
Draft-free ventilation100
Drinks holders, refer to Cup
holders107
Drive-off assistance, refer to
Dynamic Stability Control
DSC83
Drive-off assistant85
Driving lamps, refer to Parking
lamps/low beams93
Driving notes116
Driving off on hills, refer to
Drive-off assistant85
Driving stability control
systems83
Driving through water118
Driving tips, refer to Driving
notes116
Dry air, refer to Cooling
function100
DSC Dynamic Stability
Control83
DTC Dynamic Traction
Control83
– indicator/warning lamp83DVD
– country codes154
– settings155
– video playback154
DVD menu155
DVD video154
Dynamic Brake Control
DBC83
Dynamic Stability Control
DSC
– indicator/warning lamp83
Dynamic Traction Control
DTC
– indicator/warning lamp84
E
Eject button, refer to Buttons
on the CD player144
Electrical malfunction
– door lock30
– driver's door30
– fuel filler door192
– glass roof38
Electric seat adjustment43
Electric steering wheel lock
– with convenient access34
Electronic brake-force
distribution EBV83
Electronic oil level check207
Electronic Stability Program
ESP, refer to Dynamic
Stability Control DSC83
Emergency actuation,
automatic transmission,
refer to Overriding selector
lever lock59
Emergency operation
– fuel filler door, manual
release192
Emergency operation, refer to
Closing manually
– glass roof38
Emergency operation, refer to
Manual operation
– door lock30
Emergency release
– luggage compartment lid
from inside32Emergency Request224
Emergency services, refer to
Roadside Assistance224
Energy, saving
– saving fuel116
Engine
– breaking in116
– data232
– overheated, refer to Coolant
temperature70
– speed232
– starting55
– starting, convenient
access34
– switching off56
Engine compartment207
Engine coolant, refer to
Coolant209
Engine oil
– adding209
– BMW Maintenance
System211
– capacity235
– checking level207
– intervals between changes,
refer to Service
requirements73
Engine output, refer to Engine
data232
Engine speed, refer to Engine
data232
Engine starting, refer to
Starting the engine55
Entry lamps, refer to Interior
lamps
96
Entry map for destination130
Equalizer, tone setting145
Error messages, refer to
Check Control77
Event data recorders212
Exhaust system, refer to Hot
exhaust system117
Exterior mirrors49
– adjusting49
– automatic dimming
feature50
– automatic heating50
– folding in and out49
External audio device106

Everything from A - Z
248 Heating
– mirrors50
– rear window100
– residual heat99
– seats47
– steering wheel51
Heating and ventilation, refer
to Climate97
Heating while at a standstill,
refer to Using residual
heat99
Heavy loads, refer to Stowing
cargo119
Height, refer to
Dimensions233
Height adjustment
– seats43
– steering wheel50
High beams95
– headlamp flasher95
– indicator lamp13
High Definition Radio148
High-pressure
washer213,214
High water, refer to Driving
through water118
Highways, refer to Route
criteria135
Hill Descent Control HDC84
Hills118
Holders for cups107
Homepage BMW4
Hood206
Hooks for shopping bags110
Horn10,11
Hotel function, refer to
Locking or unlocking
separately31
Hot exhaust system117
Hydraulic brake assist, refer to
Dynamic Brake Control
DBC83
Hydroplaning117
I
IBOC, refer to High Definition
Radio148Ice warning, refer to Outside
temperature
warning69
ID3 tag, refer to Information
about the track153
Identification marks
– Run-Flat Tires204
– tire coding202
iDrive16
– adjusting brightness80
– changing language80
– changing settings80
– changing units of measure
and display format72
– controls16
– menu guidance17
– operating principle16
– overview16
– setting the date and time76
– start menu17
– status information19
iDrive operating principle16
Ignition55
– switched off55
– switched on55
Ignition key, refer to Remote
control with integrated
key26
Ignition key position 1, refer to
Radio readiness55
Ignition key position 2, refer to
Ignition on55
Ignition lock55
Imprint2
Indicator and warning
lamps13
– Tire Pressure Monitor
TPM88
Inflation pressure, refer to Tire
inflation pressure194
Inflation pressure monitoring,
refer to Tire Pressure
Monitor TPM86Initializing
– after power failure222
– compass, refer to
Calibrating104
– Flat Tire Monitor FTM85
– glass roof37
– radio, refer to Station,
storing147
– refer to Setting the time and
date76
Installation location
– CD changer156
– navigation DVD drive124
– telephone106
Instructions for navigation
system, refer to Voice
instructions
136
Instrument cluster12
Instrument lighting95
Instrument panel, refer to
Cockpit10
Integrated key26
Integrated universal remote
control102
Interior lamps96
– remote control28
Interior motion sensor33
Interior rearview mirror50
– automatic dimming
feature50
– compass104
Interlock, refer to Disengaging
the remote control57
Intermittent mode of the
wipers60
Intersection, entering,
navigation126
iPod, connecting, refer to
AUX-IN port163
iPod, connecting, refer to
USB-audio interface164
J
Jacking points222
Joystick, refer to iDrive16
Jumpering, refer to Jump
starting225
Jump starting225

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

Everything from A - Z
252 Reverse
– CD changer154
– CD player154
Reverse gear
– automatic transmission with
Steptronic58
– manual transmission57
Road map137
Roadside
Assistance183,224
Roadside parking lamps95
– replacing bulbs219
Roadworthiness test, refer to
Service requirements73
Roller sun blinds105
Rollover protection system,
convertible92
– resetting92
Roof load capacity235
Roof-mounted luggage
rack121
Rope, refer to Tow-starting,
towing away227
Rotary/pushbutton, refer to
iDrive16
Route135,136
– bypassing sections136
– changing135,136
– changing criteria135
– displaying streets or towns/
cities136
– map display137
– selecting135
Route instructions, refer to
Destination guidance
through voice
instructions136
Route map, refer to Map
display137
Route section, changing136
Route selection135
RSC Runflat System
Component, refer to Run-
Flat Tires204
Runflat System Component
RSC, refer to Run-Flat
Tires204Run-Flat Tires204
– continuing driving with a
damaged tire86
– flat tire86
– Flat Tire Monitor86
– new tires204
– replacing204
– tire inflation pressure194
– winter tires205
S
Safety-belt height
adjustment48
Safety belts48
– belt hand-over49
– damage48
– indicator/warning lamp48
– reminder48
– sitting safely42
Safety systems
– airbags90
– Antilock Brake System
ABS83
– brake system83
– driving stability control
systems83
– Dynamic Stability Control
DSC83
– rollover protection system,
convertible92
– safety belts48
Safety tires, refer to Run-Flat
Tires204
Satellite radio150
– enabling channel150
– selecting channel151
– storing channel151
Saving fuel116
Screen, refer to iDrive
controls16
Screw thread for tow
fitting227
SDARS, refer to Satellite
radio150
Seat adjustment
– electric43
– mechanical43
Seat and mirror memory47Seat belt reminder, refer to
'Fasten safety belts'
reminder48
Seat heating47
Seats42
– adjusting electrically43
– adjusting the seats43
– heating47
– memory, refer to Seat and
mirror memory47
– saving a setting, refer to Seat
and mirror memory47
– sitting safely42
Securing cargo111,113
Securing the vehicle
– from inside30
– from outside27
Selecting distance for active
cruise control65
Selecting new scale for
navigation137
Selector lever
– automatic transmission with
Steptronic
58
Selector lever lock, refer to
Changing selector lever
positions, shiftlock58
Selector lever positions
– automatic transmission with
Steptronic58
Service, refer to Roadside
Assistance224
Service car, refer to Roadside
Assistance224
Service data in the remote
control211
Service Interval Display, refer
to Condition Based Service
CBS211
Service Request187
Service requirement display,
refer to Condition Based
Service CBS211
Service requirements73
Services status188

Reference 253
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Settings
– changing on Control
Display80
– clock, 12h/24h mode76
– DVD155
– language80
Settings and information72
Setting times, refer to
Preselecting switch-on
times101
Shifting gears
– automatic transmission with
Steptronic58
– manual transmission57
Shiftlock
– automatic transmission,
refer to Changing selector
lever positions58
Short commands for the voice
activation system236
Short route in navigation, refer
to Selecting route135
Shuffled, refer to Random
– CD changer153
– CD player153
Side airbags90
Side windows, refer to
Windows35
Signal horn, refer to
Horn10,11
Sitting safely42
– with airbags42
– with head restraint42
– with safety belts42
Ski bag111
Ski bag for convertible, refer to
Through-loading opening
with integrated transport
bag112
Sliding/tilt sunroof, refer to
Glass roof, electric37
Slot for remote control55
Smokers' package, refer to
Ashtray108
Snap-in adapter
– inserting/removing179
– use170Snap-in adapter, refer to
Center armrest storage
compartment106
Socket, On-Board Diagnosis
OBD212
Socket, refer to Connecting
electrical appliances108
SOS, refer to Sending an
Emergency Request224
Sound output for
entertainment on/off144
Spare fuses,223
Spare fuses, refer to
Fuses223
Special destinations128
Speed
– Run-Flat Tires86
– with winter tires
205
Speed limit79
Speed limit warning, refer to
Speed limit79
Speedometer12
Speed Volume145
Split screen, refer to Control
Display, switching on/off19
Split screen content, refer to
Display for split screen
content, selecting19
Spray nozzles, refer to
Cleaning windshield and
headlamps60
Stability control, refer to
Driving stability control
systems83
Start/stop button55
– starting the engine55
– switching off the engine56
Starting, refer to Starting the
engine55
Starting assistance, refer to
Jump starting225
Starting difficulties
– jump starting225
Starting the engine
– start/stop button55
Start menu17
State/province, for
navigation125Station, selecting
– radio147
Status of this Owner's Manual
at time of printing5
Steam jet213,214
Steering wheel50
– adjustment50
– buttons on steering
wheel11
– heating51
– lock55
– locking with convenient
access34
Steering with variable ratio,
refer to Active steering89
Steptronic, refer to Automatic
transmission with
Steptronic57
Storage216
Storage compartments106
Storage nets110
"Store Channel"
in radio151
Storing seat positions, refer to
Seat and mirror memory47
Storing tires205
Stowage, refer to Storage
compartments106
Street, entering,
navigation126
Summer tires, refer to Wheels
and tires194
Surface ice, refer to Outside
temperature warning69
SVCD154
SW, waveband147
Switches, refer to Cockpit10
Switching off
– engine56
Switching off the engine
– start/stop button55
Switching on
– audio144
– CD changer144
– CD player144
– radio144
Switching the cooling function
on and off100