2014 BMW 640I COUPE Owners Manual

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 transmission position D is engaged.
The vehicle continues traveling with the engine
idling to reduce fuel consumption. Transmis‐
sion position D remains engaged.
This driving condition is referred to as coast‐
ing.
As soon as the brake or accelerator pedal is depressed, the engine is automatically coupled
to the transmission again.
Hints
Coasting is a component of the ECO PRO, re‐
fer to page 174, driving mode.
The function is available in a certain speed
range.
A forward-looking driving style helps the driver
to use the function as often as possible and
supports the fuel-conserving effect of coast‐
ing.
Safety mode
The function is not available if one of the fol‐
lowing conditions is satisfied.▷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 satisfied:
▷Accelerator pedal and brake pedal are not
operated.▷The selector lever is in transmission posi‐
tion D.▷Engine and transmission are at operating
temperature.
Display
Display in the instrument cluster The mark in the bar display be‐
low the tachometer is backlit in
blue and is located at the zero
point. The tachometer approxi‐
mately indicates idle speed.
The coasting point indicator is illuminated at
the zero point during coasting.
Indications on the Control Display
The Coasting driving condition is displayed in
EfficientDynamics Info while this driving mode
is active.
Color code blue, arrow 1, and symbol, arrow 2:
driving condition Coasting.
Displaying EfficientDynamics info
1."Vehicle Info"2."EfficientDynamics"3. "EfficientDynamics info"
Deactivating the system manually The function can be deactivated in the Config‐
ure ECO PRO, refer to page 174, menu, e.g., to
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use the braking effect of the engine when trav‐
eling downhill.
The setting is stored for the profile currently in
use.Seite 178Driving tipsSaving fuel178
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Mobility
In order to always ensure your mobility, you will find important information on operating fluids,wheels and tires, maintenance and Roadside Assistance in the following.Online Edition for Part no. 0140 2 910 771 - VI/13

RefuelingVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
General information Refuel promptly
Refuel no later than at a range of
30 miles/50 km, or operation of the engine is
not ensured and damage may occur.◀
Fuel cap
Opening1.Briefly press the rear edge of the fuel filler
flap.2.Turn the fuel cap counterclockwise.3.Place the fuel cap in the bracket attached
to the fuel filler flap.
Closing
1.Fit the cap and turn it clockwise until you
clearly hear a click.2.Close the fuel filler flap.
Do not pinch the retaining strap
Do not pinch the retaining strap attached
to the cap; otherwise, the cap cannot be
closed properly and fuel vapors can escape.
A message is displayed if the cap is loose or
missing.◀
Manually unlocking fuel filler flap In the event of an electrical malfunction, for ex‐
ample.
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1.Open the cover on the right side trim.2.Pull the green knob with the fuel pump
symbol. This releases the fuel filler flap.
Observe the following when
refueling
The fuel tank is full when the filler nozzle clicks
off the first time.
Do not overfill the fuel tank
Do not overfill the fuel tank; otherwise
fuel may escape, causing harm to the environ‐
ment and damaging the vehicle.◀
Handling fuels
Obey safety regulations posted at the
gas station.◀
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FuelVehicle equipmentAll standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equip‐
ment is also described that is not available in a
vehicle, e. g., because of the selected optional
equipment or country variant. This also applies
for safety-related functions and systems.
Fuel recommendation Gasoline For the best fuel economy, the gasoline should
be sulfur-free or very low in sulfur content.
Fuels that are marked on the gas pump as con‐
taining metal must not be used.
Refuel only with unleaded gasoline with‐
out metallic additives.
Do not refuel with any leaded gasoline or gaso‐
line with metallic additives, e. g. manganese or
iron, or permanent damage to the catalytic
converter and other components.◀
Fuels with a maximum ethanol content of
10 %, i. e., E10, may be used for refueling.
Ethanol should satisfy the following quality
standards:
US: ASTM 4806–xx
CAN: CGSB-3.511–xx
xx: comply with the current standard in each
case.
Do not refuel with ethanol E85
Do not refuel with E85, i.e., fuel with an
ethanol content of 85 %, or with Flex Fuel, as
this would damage the engine and fuel supply
system.◀Gasoline quality
BMW recommends AKI 91.
Minimum fuel grade
BMW recommends AKI 89.
Minimum fuel grade
Do not use any gasoline below the mini‐
mum fuel grade as this may impair engine per‐
formance.◀
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.
Fuel quality
The use of poor-quality fuels may result
in harmful engine deposits or damage. Addi‐
tionally, problems relating to drivability, start‐ ing and stalling, especially under certain envi‐
ronmental conditions such as high ambient
temperature and high altitude, may occur.
If drivability problems are encountered, we rec‐
ommend switching to a high quality gasoline
brand and a higher octane grade — AKI num‐
ber — for a few tank fills. To avoid harmful en‐
gine deposits, it is highly recommended to
purchase gasoline from BP or Top Tier retail‐
ers.
Failure to comply with these recommendations
may result in the need for unscheduled main‐
tenance.◀Seite 184MobilityFuel184
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