engine BMW 640I COUPE 2013 Service Manual

Pulsation of the brake pedal and sounds from
the hydraulic circuits indicate that ABS is in its
active mode.
Objects in the area around the pedals No objects in the area around the pedals
Keep floor mats, carpets, and any other
objects out of the area of motion of the pedals;
otherwise, the function of the pedals could be
impeded while driving
Do not place additional floor mats over existing
mats or other objects.
Only use floor mats that have been approved for
the vehicle and can be properly fixed in place.
Ensure that the floor mats are securely fastened
again after they were removed for cleaning, for
example.◀
Driving in wet conditions
When roads are wet or there is heavy rain, briefly
exert gentle pressure on the brake pedal every
few miles.
Ensure that this action does not endanger other
road users.
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.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.
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Saving fuelVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
General information
Your vehicle contains advanced technology for
the reduction of fuel consumption and emis‐
sions.
Fuel consumption depends on a number of dif‐
ferent factors.
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.
Close the windows and glass
sunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
raises 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.Seite 163Saving fuelDriving tips163
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The gear shift indicator of your vehicle indicates
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.
Auto Start/Stop function
The Auto Start/Stop function of your vehicle au‐
tomatically 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 re‐
duced. Savings can begin within a few seconds
of switching off the engine.
Using this system can cause certain compo‐
nents of the vehicle to become worn prema‐
turely.
Iin addition, fuel consumption is also determined
by other factors, such as driving style, road con‐
ditions, maintenance or environmental factors.
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, refer to page 189.
ECO PRO
The concept
ECO PRO supports a driving style that saves on
fuel consumption. For this purpose, the engine
control and comfort functions, e. g. the climate
control output, are adjusted.
In addition, context-sensitive instructions can
be displayed that assist in driving in a manner
that optimizes fuel consumption.
The extension of the range that is achieved as a
result can be displayed in the instrument cluster.
Activating ECO PRO Press button repeatedly until ECO PRO
is displayed in the instrument cluster.
Display in the instrument cluster
ECO PRO bonus range An extension of the range can be
achieved by an adjusted driving
style.
This may be displayed as the bo‐
nus range in the instrument clus‐
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Driving styleIn the tachometer, a mark in the
bar display indicates the current
efficiency of the driving style cor‐
responding to the accelerator
pedal position.▷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 con‐
ditions for fuel-economy-optimized driving are
met.
ECO PRO Tip - driving instruction The arrow indicates that the driv‐
ing style can be adjusted to be
more fuel efficient by backing off
the accelerator.
Additional symbols
SymbolMeasureFor efficient driving style, back off the
accelerator or delay accelerating to
allow time to assess road conditions.Reduce speed to the selected ECO
PRO speed.Automatic transmission: switch from
S/M to D or avoid manual shift inter‐
ventions.Manual shift transmission: follow
shifting instructions.Manual shift transmission: engage
neutral for engine stop.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 display
in the instrument cluster.
Configuring ECO PRO
Via the Driving Experience Switch1.Activate ECO PRO.2."Configure ECO PRO"3.Configure the program.
Via the iDrive
1."Settings"2."ECO PRO mode"
Or
1."Settings"2."Driving mode"3."Configure ECO PRO"
Configure the program.
ECO PRO Tip
▷"ECO PRO limit:":
Set ECO Pro speed at which an ECO PRO
Tip is to be displayed.▷"ECO PRO speed warning":
A reminder is displayed if the set ECO PRO
speed is exceeded.
ECO PRO climate control
"ECO PRO climate control"
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The climate control is adjusted to be fuel-effi‐
cient.
By making a slight change to the set tempera‐
ture, or adjusting the rate of heating or cooling
of the passenger compartment fuel consump‐
tion can be economized.
The output of the seat heater is also reduced.
ECO PRO Potential
The percentage of potential savings that can be
achieved with the current configuration is dis‐
played.
Indications on the Control Display
EfficientDynamics
Information on fuel consumption and technol‐
ogy can be displayed during driving.1."Vehicle Info"2."EfficientDynamics"
Displaying fuel consumption history
The average fuel consumption can be displayed
within an adjustable time frame.
"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:
▷Automatic engine Start/Stop function.▷Energy recovery.▷Climate control output.
Display ECO PRO tips
"ECO PRO Tips"
The setting is stored for the profile currently in
use.
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RefuelingVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment 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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FuelVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Fuel quality
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 con‐
verter 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 sys‐
tem.◀
The engine is knock controlled. Therefore, you
can refuel with different gasoline qualities.Recommended fuel 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.
Minimum fuel grade
The use of poor-quality fuels may result in
harmful engine deposits or damage. Addition‐
ally, problems relating to drivability, starting and
stalling, especially under certain environmental
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 number
— for a few tank fills. To avoid harmful engine
deposits, it is highly recommended to purchase
gasoline from BP or Top Tier retailers.
Failure to comply with these recommendations
may result in the need for unscheduled mainte‐
nance.◀Seite 172MobilityFuel172
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Engine compartmentVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipmentis also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
Important features in the engine compartment
1Vehicle identification number2Jump-starting, negative terminal3Washer fluid reservoir4Jump-starting, positive terminal5Oil filler neck.6Coolant reservoitr, except 650i.Hood
Opening the hood Working in the engine compartment
Never attempt to perform any service or
repair operations on your vehicle without the
necessary professional technical training.If you are unfamiliar with the statutory guide‐
lines, have any work on the vehicle performed
only by a service center.
If this work is not carried out properly, there is
the danger of subsequent damage and related
safety hazards.◀Seite 183Engine compartmentMobility183
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Never reach into the engine compartment
Never reach into the intermediate spaces
or gaps in the engine compartment. Otherwise,
there is risk of injury, e.g. from rotating or hot
parts.◀1.Pull the lever.2.Press the release handle and open the hood.3.Be careful of protruding parts on the hood.
Danger of injury when the hood is open
There is a danger of injury from protruding
parts when the hood is open.◀
Closing the hood
Let the hood drop from a height of approx.
16 in/40 cm and push down on it to lock it fully.
The hood must audibly engage on both sides.
Hood open when driving
If you see any signs that the hood is not
completely closed while driving, pull over imme‐
diately and close it securely.◀
Danger of pinching
Make sure that the closing path of the
hood is clear; otherwise, injuries may result.◀
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Engine oilVehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle,
e. g., because of the selected optional equip‐
ment or country variant. This also applies for
safety-related functions and systems.
General information
Engine oil consumption depends on driving
style and driving conditions, e.g., if your driving
style is very sporty engine oil consumption will
be considerably greater.
Therefore, regularly check the engine oil level
after refueling.
Checking the oil level
electronically
Status display
The concept
The oil level is monitored electronically during
driving and shown on the Control Display.
If the oil level reaches the minimum level, a
check control message is displayed.
Requirements
Depending on the previous displays, the status
display appears when the engine is running or
after the vehicle has been driven for at least 30
minutes.
Displaying the oil level1."Vehicle Info"2."Vehicle status"3. "Engine oil level"
Oil level display messages
Different messages appear on the display de‐
pending on the oil level. Pay attention to these
messages.
If oil level is too low, immediately add 1 US
quart/liter of oil.
Take care not to add too much engine oil.
Too much engine oil
Have the vehicle checked immediately;
otherwise, surplus oil can lead to engine dam‐
age.◀
Detailed measurement
The concept
In the detailed measurement the oil level is
checked and displayed via a scale.
During the measurement, the idle speed is in‐
creased somewhat.
General information
A detailed measurement is only possible with
certain engines.
Requirements
▷Manual transmission: shift lever in neutral
position, clutch and accelerator pedals not
depressed.▷Automatic transmission: selector lever in
transmission position N or P and accelerator
not depressed.▷Vehicle is on a level road and the engine is
running at operating temperature.Seite 185Engine oilMobility185
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