fuel consumption BMW 640I CONVERTIBLE 2015 User Guide

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
engine speed as low as possible and at a con‐
stant speed.
If necessary, observe the gear shift indicator of
the vehicle, refer to page 94.
Use coasting When approaching a red light, take your foot
off the accelerator and let the vehicle coast to
a halt.
For going downhill take your foot off the accel‐
erator 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.
Auto Start/Stop function The Auto Start/Stop function of your vehicle
automatically switches off the engine during a
stop.
If the engine is switched off and then restarted
rather than leaving the engine running con‐
stantly, fuel consumption and emissions are
reduced. Savings can begin within a few sec‐
onds of switching off the engine.
In addition, fuel consumption is also deter‐
mined by other factors, such as driving style,
road conditions, maintenance or environmental
factors.Switch off any functions that
are not currently needed
Functions such as seat heating and the rear
window defroster require a lot of energy and
reduce the range, especially in city and stop-
and-go traffic.
Reel off these functions if they are not needed.
The ECO PRO driving program supports the
energy conserving use of comfort features.
These functions are automatically deactivated
partially or completely.
Have maintenance carried
out
Have vehicles maintained regularly to achieve
optimal vehicle efficiency and operating life.
The maintenance should be carried out by
your service center.
Also note the BMW Maintenance System, refer
to page 220.
ECO PRO
The concept
ECO PRO supports a driving style that saves
on fuel consumption. For this purpose, the en‐
gine control and comfort features, e. g. the cli‐
mate control output, are adjusted.
Under certain conditions the engine is auto‐
matically decoupled from the transmission in
the D selector lever position. The vehicle con‐
tinues traveling with the engine idling to re‐
duce fuel consumption. Selector lever position
D remains engaged.
In addition, context-sensitive instructions are
displayed to assist with an optimized fuel con‐
sumption driving style.
The achieved extended range is displayed in
the instrument cluster as bonus range.Seite 186Driving tipsSaving fuel186
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Overview
The system includes the following
EfficientDynamics functions and displays:▷ECO PRO bonus range, refer to page 187.▷ECO PRO tips driving instruction, refer to
page 188▷ECO PRO climate control, refer to
page 187.▷ECO PRO coasting driving status, refer to
page 189.
Activate ECO PRO
Press button repeatedly until ECO
PRO is displayed in the instrument
cluster.
Configuring ECO PRO
Via the Driving Dynamics Control
1.Activate ECO PRO.2."Configure ECO PRO"3.Configure the program.
Via the iDrive
1."Settings"2."Driving mode"3."Configure ECO PRO"
Configure the program.
ECO PRO Tip
▷"Tip at:":
Adjust the ECO PRO speed.▷"ECO PRO speed warning":
The output is reduced once the set ECO
PRO speed is reached.
Coasting
Fuel-efficiency can be optimized by disengag‐
ing the engine and Coasting, refer to
page 189, with the engine idling.
This function is only available in ECO PRO
mode.
ECO PRO climate control
"ECO PRO climate control"
Climate control is set to be fuel-efficient.
By making a slight change to the set tempera‐
ture, or slowly adjusting the rate of heating or
cooling of the car's interior, fuel consumption
can be economized.
The mirror heating is made available when out‐
side temperatures are very cold.
ECO PRO potential Shows potential savings with the current set‐
tings in percentages.
Display in the instrument cluster
Display in the instrument display
When ECO PRO mode is activated, the display
switches to a special configuration.
Some of the displays may differ from the dis‐
play in the instrument cluster.
Blue bar segments symbolize the gained bo‐
nus range in stages.
In addition, the bonus range is highlighted in
blue in the total range display.
ECO PRO bonus range An adjusted driving style helps
you extend your driving range.
This may be displayed as the
bonus range in the instrument
cluster.
The bonus range is shown in the range display.
The bonus range is automatically reset every
time the vehicle is refueled.Seite 187Saving fuelDriving tips187
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Efficiency displayDisplay in the instrument clusterDisplay in the instrument display
A mark in the efficiency display informs about
the current driving style.
Mark in the area of arrow 1: display of the en‐
ergy recovered by coasting or when braking.
Mark in the area of arrow 2: display when ac‐
celerating.
Your driving style's efficiency is shown by the
bar's color:
▷Blue display: efficient driving style as long
as the mark moves within the blue range.▷Gray display: adjust driving style, e. g. by
backing off the accelerator pedal.
The display switches to blue as soon as all
conditions for fuel-efficiency-optimized driving
are met.
ECO PRO tip, driving tip The arrow indicates that the driving
style can be adjusted to be more fuel
efficient by backing off the accelerator for in‐
stance.
Note The efficiency display and ECO PRO tips in theinstrument cluster appear when the ECO PRO
display is activated.
Activating driving style and ECO PRO tips:1."Settings"2."Instrument cluster"3."ECO PRO Info"
In the instrument display:
1."Settings"2."Instrument cluster"3."Driving mode view"
ECO PRO tip, symbols
An additional symbol and text instructions are
displayed.
SymbolMeasureFor efficient driving back off the ac‐
celerator or delay accelerating to al‐
low time to assess road conditions.Reduce speed to the selected ECO
PRO speed.Steptronic transmission: shift from
M/S to D.
Indications on the Control Display
EfficientDynamics Information on fuel consumption and technol‐
ogy can be displayed while driving.
1."Vehicle info"2."EfficientDynamics"Seite 188Driving tipsSaving fuel188
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Displaying fuel consumption history
The average fuel consumption can be dis‐
played within an adjustable time frame.
Vertical bars show consumption for the se‐
lected time frame.
Trip interruptions are represented below the
bar on the time axis.
"Consumption history"
Adjusting fuel consumption history time frame
Select the symbol.
Resetting fuel consumption history
1.Open "Options".2."Reset consumption history"
Displaying EfficientDynamics info
The current efficiency can be displayed.
"EfficientDynamics info"
The following systems are displayed:
▷Auto Start/Stop function.▷Energy recovery.▷Climate control output.▷Coasting.
Display ECO PRO tips
"ECO PRO Tips"
Settings are stored for the profile currently in
use.
Coasting
The concept
The system helps to conserve fuel.
To do this, under certain conditions the engine
is automatically decoupled from the transmis‐
sion when selector lever position D is set. The
vehicle continues traveling with the engine
idling to reduce fuel consumption. Selector
lever position D remains engaged.
This driving condition is referred to as coast‐
ing.
As soon as you step on the brake or accelera‐
tor pedal, the engine is automatically coupled
again.
Hints
Coasting is a component of the ECO PRO, re‐
fer to page 186, driving mode.
Coasting is automatically activated when ECO
PRO mode is called via the Driving Dynamics
Control.
The function is available in a certain speed
range.
A proactively driving style helps the driver to
use the function as often as possible and sup‐
ports the fuel-conserving effect of coasting.
Safety mode
The function is not available under one of the
following conditions.▷DSC OFF or TRACTION activated.▷Driving in the dynamic limit range and on
steep uphill or downhill grades.▷Battery charge status temporarily too low
or vehicle electrical system drawing exces‐
sive current.▷Cruise control activated.
Functional requirements
In ECO PRO mode, this function is available in
a speed range from approximately 30 mph, ap‐
prox. 50 km/h to 100 mph, approx. 160 km/h, if
the following conditions are met:
▷Accelerator pedal and brake pedal are not
operated.▷The selector lever is in selector lever posi‐
tion D.▷Engine and transmission are at operating
temperature.
The driving status Coast can be influenced
with the shift paddles.
Seite 189Saving fuelDriving tips189
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Engine oilVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
General information The engine oil consumption is dependent on
the driving style and driving conditions.
The engine oil consumption can increase in
case of, for example:▷Sporty driving.▷Break-in the engine.▷Idling of the engine.▷Usage of non-approved engine oil grades.
Therefore, regularly check the engine oil level
after refueling.
The vehicle is equipped with electronic oil
measurement.
The electronic oil measurement has two meas‐
uring principles:
▷Status display▷Detailed measurement
Electronic oil measurement
Status display
The concept
The engine oil level is monitored electronically
while driving and shown on the Control Dis‐
play.
If the engine oil level reaches the minimum
level, a check control message is displayed.
Requirements
A current measured value is available after ap‐
prox. 30 minutes of driving. During a shorter
trip, the status of the last, sufficiently long trip
is displayed.
With frequent short-distance trips, regularly
perform a detailed measurement.
Displaying the engine oil level
On the Control Display:1."Vehicle info"2."Vehicle status"3. "Engine oil level"
Engine oil level display messages
Different messages appear on the display de‐
pending on the engine oil level. Pay attention
to these messages.
If the engine oil level is too low, within the next
125 miles/200 km Add engine oil, refer to
page 216.
Engine oil level too low
Add engine oil immediately; otherwise,
an insufficient amount of engine oil could re‐
sult in engine damage.◀
Take care not to add too much engine oil. Too much engine oil
Have the vehicle checked immediately;
otherwise, surplus engine oil can lead to en‐
gine damage.◀
Seite 215Engine oilMobility215
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Everything from A to Z
IndexA ABS, Antilock Brake Sys‐ tem 134
ACC, Active Cruise Control with Stop & Go 142
Acceleration Assistant, refer to Launch Control 81
Accessories and parts 7
Activated-charcoal filter 166
Active Blind Spot Detec‐ tion 130
Active Cruise Control with Stop & Go, ACC 142
Active Protection 132
Active seat, front 58
Active seat ventilation, front 58
Active Steering, integral 138
Adaptive brake assistant 134
Adaptive brake lights, refer to Brake force display 132
Adaptive drive 137
Adaptive Light Control 103
Additives, oil 216
Adjusting, steering wheel 65
Adjustments, seats/head re‐ straints 56
After washing vehicle 233
Airbags 107
Airbags, indicator/warning light 108
Air circulation, refer to Recir‐ culated-air mode 165
Air, dehumidifying, refer to Cooling function 165
Air distribution, manual 164
Air flow, automatic climate control 164
Air outlets, see ventila‐ tion 167 Air pressure, tires 198
Alarm system 44
Alarm, unintentional 45
All around the center con‐ sole 16
All around the interior rear‐ view mirror 17
All around the steering wheel 14
All-season tires, refer to Win‐ ter tires 207
All-wheel-drive 136
Alternating-code hand-held transmitter 171
Alternative oil types 217
Animal detection, see Night Vision 125
Antifreeze, washer fluid 78
Antilock Brake System, ABS 134
Anti-slip control, refer to DSC 134
Approved axle load 241
Approved engine oils, see Suitable engine oil
types 217
Armrest, refer to Front center armrest 176
Arrival time 97
Ashtray 172
Assistance when driving off 134
Attentiveness assistant 132
AUTO H button 73
AUTO H button, refer to Au‐ tomatic Hold 73
AUTO intensity 164
Automatic car wash 232
Automatic Cruise Control with Stop & Go 142
Automatic Curb Monitor 63 Automatic deactivation, front-
seat passenger airbags 109
Automatic headlight con‐ trol 103
Automatic Hold 73
Automatic locking 44
Automatic recirculated-air control 165
Automatic Soft Closing, doors 41
Automatic transmission, see Steptronic transmission 78
AUTO program, automatic cli‐ mate control 164
AUTO program, intensity 164
Auto Start/Stop function 71
Average fuel consumption 96
Average speed 96
Axle loads, weights 241
B Backrest curvature, refer to Lumbar support 57
Backrest, seats 56
Backrest, width 57
Band-aids, refer to First aid kit 228
Bar for tow-starting/ towing 230
Battery replacement, remote control for parked-car heat‐
ing/ventilation 169
Battery replacement, vehicle battery 225
Battery replacement, vehicle remote control 35
Battery, vehicle 225
Belts, safety belts 59
Beverage holder, cu‐ pholder 177 Seite 244ReferenceEverything from A to Z244
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Confirmation signal 44
ConnectedDrive, see user's manual for Navigation, En‐
tertainment and Communi‐
cation
ConnectedDrive Services
Continued driving with a flat tire 113 , 116
Control Display 18
Control Display, settings 98
Controller 18
Control systems, driving sta‐ bility 134
Convenient closing with the remote control 38
Convenient opening with the remote control 37
Convertible, convertible top 48
Convertible mode, automatic climate control 164
Convertible program, auto‐ matic climate control 164
Convertible top 48
Convertible top, care 234
Convertible top, cargo area partition 50
Convertible top, emergency operation 50
Convertible top, rollover pro‐ tection system 110
Convertible top tool 50
Coolant 218
Coolant level 218
Coolant temperature 91
Cooling function 165
Cooling, maximum 165
Cooling system 218
Cornering light 103
Corrosion on brake discs 182
Cosmetic mirror 172
Courtesy lamps during un‐ locking 37
Courtesy lamps with the vehi‐ cle locked 38
Cruise control 149 Cruise control, active with
Stop & Go 142
Cruise Control, refer to Active Cruise Control 142
Cruising range 92
Cupholder 177
Current fuel consumption 92
D
Damage, tires 206
Damping control, dy‐ namic 137
Data, technical 240
Date 92
Daytime running lights 103
Defrosting, refer to Windows, defrosting 165
Dehumidifying, air 165
Deleting personal data 24
Deletion of personal data 24
Destination distance 97
Digital clock 92
Dimensions 240
Dimmable exterior mirrors 64
Dimmable interior rearview mirror 64
Direction indicator, refer to Turn signals 75
Display, electronic, instru‐ ment cluster 83
Display in windshield 99
Display lighting, refer to In‐ strument lighting 105
Displays 84
Displays, cleaning 236
Disposal, coolant 219
Disposal, vehicle battery 226
Distance control, refer to PDC 151
Distance to destination 97
Divided screen view, split screen 23
Door lock 40
Door lock, refer to Remote control 34 Doors, Automatic Soft Clos‐
ing 41
Downhill control 136
Drive-off assistant 134
Drive-off assistant, refer to DSC 134
Driver assistance, refer to In‐ telligent Safety 116
Driving Assistant, refer to In‐ telligent Safety 116
Driving Dynamics Con‐ trol 138
Driving instructions, break- in 180
Driving mode 138
Driving notes, general 180
Driving stability control sys‐ tems 134
Driving tips 180
DSC Dynamic Stability Con‐ trol 134
DTC Dynamic Traction Con‐ trol 135
Dynamic Damping Con‐ trol 137
Dynamic Drive 137
Dynamic Stability Control DSC 134
Dynamic Traction Control DTC 135
E ECO PRO 186
ECO PRO, bonus range 187
ECO PRO display 186
ECO PRO displays 85
ECO PRO driving mode 186
ECO PRO mode 186
ECO PRO Tip - driving in‐ struction 188
EfficientDynamics 188
Electronic displays, instru‐ ment cluster 83
Electronic oil measure‐ ment 215 Seite 246ReferenceEverything from A to Z246
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Electronic Stability ProgramESP, refer to DSC 134
Emergency detection, remote control 35
Emergency operation, convertible top 50
Emergency release, fuel filler flap 194
Emergency Request 227
Emergency start function, en‐ gine start 35
Emergency unlocking, trans‐ mission lock 81
Emergency unlocking, trunk lid 42
Energy Control 92
Energy recovery 93
Engine, automatic Start/Stop function 71
Engine, automatic switch- off 71
Engine compartment 213
Engine compartment, work‐ ing in 213
Engine coolant 218
Engine idling when driving, coasting 189
Engine oil 215
Engine oil, adding 216
Engine oil additives 216
Engine oil change 217
Engine oil filler neck 216
Engine oil temperature 91
Engine oil types, alterna‐ tive 217
Engine oil types, ap‐ proved 217
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 229
Engine start, refer to Starting the engine 70
Engine stop 70
Engine temperature 91 Entering/exiting vehicle, as‐
sistance, steering wheel 65
Entering a car wash 232
Equipment, interior 170
Error displays, see Check Control 87
ESP Electronic Stability Pro‐ gram, refer to DSC 134
Exchanging wheels/tires 206
Exhaust system 181
Exterior mirror, automatic dimming feature 64
Exterior mirrors 63
External start 229
External temperature dis‐ play 91
External temperature warn‐ ing 91
Eyes for securing cargo 184
F
Failure message, see Check Control 87
False alarm, refer to Uninten‐ tional alarm 45
Fan, refer to Air flow 164
Filler neck for engine oil 216
Fine wood, care 235
First aid kit 228
Fitting for towing, see Tow fit‐ ting 231
Flat tire, changing wheels 225
Flat Tire Monitor FTM 114
Flat tire, Tire Pressure Moni‐ tor TPM 111
Flat tire, warning lamp 112, 115
Flooding 181
Floor carpet, care 235
Floor mats, care 235
Fold-out position, wiper 77
Foot brake 181
Front airbags 107
Front center armrest 176 Front-end collision warning
with braking function 118
Front-end collision warning with City Braking func‐
tion 120
Front fog lights 105
Front fog lights, bulb replace‐ ment 224
Front lights 222
front-seat passenger airbags, automatic deactivation 109
Front-seat passenger airbags, indicator lamp 109
Front seats 56
FTM Flat Tire Monitor 114
Fuel 196
Fuel consumption, refer to Average fuel consump‐
tion 96
Fuel filler flap 194
Fuel gauge 91
Fuel lid 194
Fuel quality 196
Fuel recommendation 196
Fuel, tank capacity 242
Fuse 226
G
Garage door opener, refer to Universal Integrated Remote
Control 170
Gasoline 196
Gear change, Steptronic transmission 79
Gear shift indicator 94
General driving notes 180
Glare shield 172
Glove compartment 175
Gross vehicle weight, ap‐ proved 241
H
Handbrake, refer to Parking brake 72 Seite 247Everything from A to ZReference247
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