2012 BMW 640I CONVERTIBLE heating

The heat generated in this process helps dry the
brake discs and pads.
In this way braking efficiency will be available
when you need it.
Hills
Drive
long or steep downhill gradients in the gear
in which the least braking is required. Otherwise,
the brake system may overheat, resulting in a
reduction in the brake system efficiency.
Manual transmission:
You can increase the engine's braking effect by
shifting down, going all the way to first gear, if
necessary.
Automatic transmission*:
You can increase the engine's braking effect by
shifting down in the manual mode of the auto‐
matic transmission, refer to page 72.
Avoid load on the brakes
Avoid placing excessive load on the brake
system. Light but consistent brake pressure can
lead to high temperatures, brake wear and pos‐
sibly even brake failure.◀
Do not drive in neutral
Do not drive in neutral or with the engine
stopped, as doing so disables engine braking. In
addition, steering and brake assist is unavailable
with the engine stopped.◀
Brake disc corrosion
Corrosion on the brake discs and contamination
on the brake pads are furthered by:
▷ Low mileage.
▷ Extended periods when the vehicle is not
used at all.
▷ Infrequent use of the brakes.
Corrosion occurs when the minimum pressure
that must be exerted by the pads during brake
applications to clean the discs is not reached.
Should corrosion form on the brake discs, the
brakes will tend to respond with a pulsating ef‐
fect that generally cannot be corrected. Condensation under the parked vehicle
When
using the automatic climate control, con‐
densation water develops that exits underneath
the vehicle.
Therefore, traces of condensed water under the
vehicle are normal.
Loading
Overloading the vehicle
To avoid exceeding the approved carrying
capacity of the tires, never overload the vehicle.
Overloading can lead to overheating and in‐
creases the rate at which damage develops in‐
side the tires. This could result in a sudden loss
of tire inflation pressure.◀
No fluids in the trunk
Make sure that fluids do not leak into the
trunk; otherwise, the vehicle may be damaged.◀
Determining the load limit 1.
Locate the following statement on your ve‐
hicle’s placard*:
▷The combined weight of occupants and
cargo should never exceed XXX kg or
YYY lbs. Otherwise, damage to the ve‐
hicle

and unstable driving situations may
result.
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
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Things to remember when driving

The implementation of certain measures, driv‐
ing style and regular maintenance can have an
influence on fuel consumption and on the envi‐
ronmental impact.
Remove unnecessary cargo
Additional weight increases fuel consumption.
Remove attached parts following use
Attached parts on the vehicle impair the aero‐
dynamics and increase the fuel consumption.
Closing the windows
Open windows increase air resistance and
therefore lead to greater fuel consumption.
Check the tire inflation pressure
regularly
Check
and, if necessary, correct the tire inflation
pressure at least twice a month and before start‐
ing on a long trip.
Low tire inflation pressure increases rolling re‐
sistance and thus raises fuel consumption and
tire wear.
Drive away without delay
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
This is the fastest way for the cold engine to
reach its operating temperature.
Look well ahead when driving
Avoid unnecessary acceleration and braking.
By maintaining a suitable distance to the vehicle
driving ahead of you.
Driving smoothly and looking ahead reduces
fuel consumption.
Avoid high engine speeds
Use 1st gear to get the vehicle in motion. Be‐
ginning with 2nd gear, accelerate rapidly. When
accelerating, shift up before reaching high en‐
gine speeds. When you reach the desired speed, shift into the
highest applicable gear and drive with the en‐
gine
speed as low as possible and at a constant
speed.
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
The gear shift indicator* of your vehicle indi‐
cates the most fuel efficient gear.
Use coasting conditions
When approaching a red light, take your foot off
the accelerator and let the vehicle coast to a halt.
On a downhill gradient, take your foot off the ac‐
celerator and let the vehicle roll.
The flow of fuel is interrupted while coasting.
Switch off the engine during longer
stops
Switch off the engine during longer stops, e.g.,
at traffic lights, railroad crossings or in traffic
congestion.
Fuel savings are achieved after the vehicle is
switched off for only approx. 4 seconds.
Switch off any functions that are not
currently needed
Functions such as seat heating and the rear win‐
dow defroster require a lot of energy and con‐
sume additional fuel, especially in city and stop-
and-go traffic.
Therefore, switch off these functions if they are
not actually needed.
Have maintenance carried out
Have vehicles maintained regularly to achieve
optimal vehicle economy and operating life.
Have the maintenance carried out by your serv‐
ice center.
Please also note the BMW Maintenance Sys‐
tem.
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Things to remember when driving

Menu in instrument cluster
76
Menus, operating, iDrive 19
Menus, refer to iDrive operat‐ ing concept 20
Message list, traffic bulle‐ tins 157
Messages 210
Messages, refer to Check Control 82
Microfilter 126
Minimum tread, tires 232
Mirror 59
Mirror memory 58
Mobile communication devi‐ ces in the vehicle 139
Mobile phone 196
Modifications, technical, refer to Safety 7
Moisture in headlamp 244
Monitor, refer to Control Dis‐ play 19
Mounting of child restraint fix‐ ing systems 62
MP3 player 184
Multifunction steering wheel, buttons 12
Multimedia 173
Music collection 180
Music search 181
Music, storing 180
N
Navigation 146
Navigation data 160
Neck restraints, front, refer to Head restraints 57
New wheels and tires 233
Night Vision with pedestrian detection 118
NORMAL program, Dynamic Driving Control 105
Notes 213
Nylon rope for tow-starting/ towing 252 O
OBD Onboard Diagnos‐
tics 241
Obstacle marking, backup camera 111
Odometer 76
Office 207
Oil 238
Oil, adding 238
Oil additives 239
Oil
change interval, service re‐
quirements 81
Oil filler neck 238
Oil level check 238
Oil types, alternative 239
Oil types, approved 239
Old batteries, disposal 247
Onboard Diagnostics OBD 241
Onboard monitor, refer to Control Display 19
Online, refer to BMW On‐ line 220
Opening/closing from in‐ side 39
Opening/closing via door lock 38
Opening/closing with remote control 36
Operating concept, iDrive 19
Outside air, refer to Automatic recirculated-air control 125
Overheating of engine, refer to Coolant temperature 75
P
Paint, vehicle 255
Panic mode 37
Parallel parking assistant 115
Park Distance Control PDC 107
Parked-car ventilation 126
Parked vehicle, condensa‐ tion 140
Parking aid, refer to PDC 107
Parking assistant 115 Parking brake
67
Parking lamps 84
Parking with Auto Hold 67
Passenger side mirror, tilting downward 59
Pathway lines, backup cam‐ era 110
PDC Park Distance Con‐ trol 107
Pedestrian detection, refer to Night Vision 118
People detection, refer to Night Vision 118
Permissible axle load 261
Personal information 207
Personal Profile 33
Phone 196
Pinch protection system, win‐ dows 44
Plastic, care 256
PlugIn 223
Position, storing 148
Postal code, entering in navi‐ gation 146
Power failure 247
Power windows 43
Pressure, tire air pres‐ sure 229
Pressure warning FTM, tires 95
Profile, refer to Personal Pro‐ file 33
Programmable memory but‐ tons, iDrive 23
Protective function, win‐ dows 44
Push-and-turn switch, refer to Controller 19
R
Radiator fluid 239
Radio 166
Radio-operated key, refer to Remote control 32
Radio ready state 65
Rain sensor 70
Random 174
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Reference Mobility Communication Entertainment Navigation Driving tips Controls At a glance

Random playback
174
RDS 167
Reading out loud 214
Rear axle steering 102
Rear lamps 245
Rearview mirror 59
Rear window defroster 125
Recirculated-air mode 125
Recommended tire brands 233
Refueling 226
Remaining range 74
Reminders 213
Remote control/key 32
Remote control, malfunc‐ tion 38
Remote
control, universal 128
Replacement fuse 247
Replacing parts 243
Replacing wheels/tires 233
Reporting safety defects 8
Reserve warning, refer to Range 74
Resetting, Tire Pressure Mon‐ itor TPM 92
Residual heat, automatic cli‐ mate control 125
Retaining straps, securing cargo 141
Retreaded tires 233
Roadside Assistance 219
Roadside parking lamps 85
Rollover protection system 91
Roll stabilization, refer to Adaptive Drive 102
Roll stabilization, refer to Dy‐ namic Drive 102
Roof load capacity 261
Rope for tow-starting/tow‐ ing 252
Route 154
Route criteria, route 153
Route, displaying 154
Routes, avoiding 154
Route section, bypassing 155
RSC Runflat System Compo‐ nent, refer to Run-flat
tires 234 Rubber components,
care 256
Run-flat tires 234
S
Safe braking 139
Safety 7
Safety belt reminder 56
Safety belts 56
Safety belts, care 256
Safety systems, airbags 88
Satellite radio 168
Saving fuel 141
Scale, changing during navi‐ gation 156
Screen, refer to Control Dis‐ play 19
Screwdriver 243
Screw thread for tow fit‐ ting 252
Seat belts, refer to Safety belts 56
Seat heating, front 55
Seating position for chil‐ dren 62
Seat, mirror, and steering wheel memory 58
Seats 53
Seat ventilation, front 55
Selection list in instrument cluster 76
Selector lever, automatic transmission 72
Sensors, care 257
Service and warranty 7
Service requirements, CBS Condition Based Serv‐
ice 241
Service requirements, dis‐ play 81
Service, Roadside Assis‐ tance 249
Settings on Control Dis‐ play 79
Settings, storing for seat, mir‐ rors, steering wheel 58 Shifting, automatic transmis‐
sion 72
Shifting, manual transmis‐ sion 71
Shift paddles on steering wheel 73
Short commands 263
Shoulder support 54
Side airbags 88
Side View 114
Signaling, horn 12
Signals when unlocking 37
Sitting safely 53
Size 260
Ski bag 131
Smallest turning circle 261
Smoker's package 129
Snap-in adapter, mobile phone 205
Snow chains 234
Socket 130
Socket, OBD Onboard Diag‐ nostics 241
Software applications, iPhone 222
Software update 191
Spare fuse 247
Special destinations, naviga‐ tion 149
Specified engine oil types 239
Speed, average 77
Speed limit, setting 78
Speedometer 14
Split screen 23
Split
screen map settings 157
Spoken instructions, naviga‐ tion 155
SPORT+ program, Dynamic Driving Control 104
Sport automatic transmis‐ sion 73
SPORT program, Dynamic Driving Control 104
Sport program, transmis‐ sion 73
Stability control systems 101
Start/Stop button 65
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Everything from A to Z

Start function during malfunc‐
tion 33
Starting aid 249
Starting the engine 66
State/province, selecting for navigation 146
Stations, stored 172
Station, storing 166
Status display, tires 92
Status information, iDrive 22
Status of Owner's Manual 6
Steering, Integral Active Steering 102
Steering wheel, adjusting 60
Steering wheel heating 61
Steering wheel memory 58
Steptronic, automatic trans‐ mission 72
Stopping the engine 66
Storage compartments 132
Storage compartments, loca‐ tions 132
Storage, tires 234
Storing the vehicle 257
Street, entering for naviga‐ tion 147
Summer tires, tread 232
Supplementary text mes‐ sage 82
Surround View 110
Suspension settings 103
Switch for Dynamic Driving Control 103
Switch-on times, parked-car ventilation 126
Switch, refer to Cockpit 12
Symbols 6
T
Tachometer 75
Tail and brake lamps 245
Tailgate 40
Tailgate
via remote control 37
Tail lamps 245
Tail lamps, bulb replace‐ ment 245
Tasks 213 Technical changes, refer to
Safety 7
Technical data 260
TeleService 218
Temperature, automatic cli‐ mate control 124
Temperature display, external temperature 75
Temperature, engine oil 75
Terminal, starting aid 250
Text messages 210
Text message, supplemen‐ tary 82
Theft alarm system, refer to Alarm system 42
Theft protection, lug bolts 246
Theft protection, refer to Cen‐ tral locking system 35
Thermal
camera, refer to Night
Vision 118
Thigh support 54
Tilt alarm sensor 43
Tilt, seats 53
Time of arrival 78
Tire damage 232
Tire identification marks 231
Tire inflation pressure 229
Tire inflation pressure monitor, refer to FTM 95
Tire Pressure Monitor TPM 91
Tires, changing 233
Tires, everything on wheels and tires 229
Tires, run-flat tires 234
Tire tread 232
Toll roads, route 154
Tone 164
Tool kit 243
Tools 243
Top View 112
Total vehicle weight 261
Tow fitting 252
Towing 251
Town/city, navigation 146
Tow-starting 251
Tow truck 251 TPM Tire Pressure Moni‐
tor 91
Traction control 101
TRACTION
program, Dynamic
Driving Control 104
Traffic bulletins, naviga‐ tion 157
Traffic situation/gray card 158
Transmission, automatic 72
Transmission, manual 71
Transporting children safely 62
Tread, tires 232
Treble, tone 164
Trip computer 78
Triple turn signal activa‐ tion 69
Trip odometer 76
Truck for tow-starting/tow‐ ing 251
Trunk, cargo area partition 47
Trunk lid 40
Trunk lid, emergency unlock‐ ing 41
Trunk lid, hotel function 39
Trunk lid via remote con‐ trol 37
Turning circle 261
Turning circle lines, backup camera 111
Turn signals, operation 69
Turn signals, rear, bulb re‐ placement 245
U
Unintentional alarm 43
Units of measure 80
Universal remote control 128
Unlock button, automatic transmission 72
Unlocking/locking from in‐ side 39
Unlocking/locking via door lock 38
Unlocking/locking with remote control 36
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Reference Mobility Communication Entertainment Navigation Driving tips Controls At a glance