2005 BMW 645I COUPE key

Driving
54
Driving
Ignition lock
0 Steering locked
The key can only be inserted or removed in this
position.
After removing the key, turn the steering wheel
slightly until it locks.
Interlock on automatic transmission*
>Only move the selector lever from
position P with the engine running.
>To turn the key back to position 0 or to
remove it, first select the selector lever
position P.
1 Steering unlocked
A slight steering wheel movement often makes
it easier to turn the key from 0 to 1.
Some vehicle systems are ready for operation.
2 Ignition switched on
All vehicle systems are ready for operation.
3 Start engine
Starting engine
Do not run the engine in closed rooms, as
otherwise the inhaling of toxic exhaust
gases can cause unconsciousness and death.
The exhaust gases contain carbon monoxide,
an odorless and colorless, but highly toxic gas.
Never leave an unattended vehicle with the engine running, as such a vehicle represents a
potential safety hazard.
To prevent the vehicle from rolling, always
select neutral position or position N and apply
the handbrake before leaving the vehicle with
the engine running.<
When starting the engine, do not press the
accelerator pedal.
Do not allow the engine to warm up by leaving it
running while the vehicle remains stationary.
Instead, begin to drive immediately at a moder-
ate engine speed.
Special starting conditions
Press the accelerator pedal halfway down when
starting if
>the engine fails to start on the first attempt,
for instance, if it is very hot or cold
>the engine is started at very low tempera-
tures, below approx. + 57/– 156, at high
altitudes, above 3,300 ft/1,000 m
Avoid frequent starting in quick succes-
sion or repeated start attempts in which
the engine does not start. Otherwise, the fuel is
not burned or inadequately burned and there is
a danger of overheating and damaging the cat-
alytic converter.<
Manual transmission
1.Apply the handbrake.
2.Gearshift lever in neutral position.
3.Press the clutch pedal.
If the clutch pedal is not depressed,
the engine will not start.<
4.Start the engine.
Do not terminate the starting operation too
early, but after approx. 20 seconds at the
latest. When the engine starts, release the
ignition key immediately.

Controls
55Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
SMG Sequential manual transmission*
and automatic transmission*
Your BMW is equipped with the convenience
starting feature. It is sufficient to turn the igni-
tion key only briefly to position 3 and then
release it right away. The system responds by
automatically engaging the starter for a certain
period and allowing it to run until the engine
starts, after which it then disengages automati-
cally.
SMG Sequential manual transmission*
1.Press the brake pedal.
2.Engage selector-lever position N.
3.Start the engine.
If the engine does not start, engage the
last gear selected again, refer to instru-
ment cluster display, and then shift into posi-
tion N.<
Automatic transmission with
Steptronic*
1.Press the brake pedal.
2.Engage selector-lever position P or N.
3.Start the engine.
Switching off engine
Do not remove the ignition key while the
vehicle is rolling, as otherwise the steer-
ing wheel lock will immobilize the steering.
When leaving the vehicle, remove the ignition
key and lock the steering.
When parking on a downhill incline, apply the
handbrake, as otherwise the vehicle could roll
away.<
Manual transmission
1.Turn the ignition key to position 1 or 0.
2.Shift into first gear or reverse.
SMG Sequential manual transmission*
1.Engage a drive position.
2.Turn the ignition key to position 1 or 0.
A signal sounds on stopping the engine.
Automatic transmission with
Steptronic*
1.Engage selector-lever position P.
2.Turn the ignition key to position 1 or 0.
Handbrake
The handbrake is primarily intended to prevent
the vehicle from rolling while parked; it brakes
the rear wheels.
Indicator lamp
The indicator lamp lights up, and an
acoustic signal also sounds when start-
ing off. The handbrake is engaged.
Indicator lamp for Canadian models.
Engaging
The lever engages automatically.
Releasing
Pull slightly upward, press the button and lower
the lever.
If exceptional circumstances should
make it necessary to engage the hand-
brake while the vehicle is in motion, do not pull it
too strongly. In doing so, continuously press the
button of the handbrake lever.
Strong application of the handbrake can lead to
overbraking of the rear axle and associated
'fishtailing' of the vehicle rear end.
The brake lamps do not light up when the hand-
brake is engaged.

Driving
56 Vehicles with manual or SMG transmission:
When parking on inclines, engage the hand-
brake, as even engaging the first or reverse gear
might not under certain circumstances secure
the vehicle against moving.
Vehicles with automatic transmission
*:
Engage selector-lever position P.<
To prevent corrosion and one-sided brak-
ing action, occasionally engage the hand-
brake lightly when the vehicle is slowly coming
to a stop if the traffic conditions are suitable.<
Manual transmission
When shifting into 5th/6th gear, press the
selector lever toward the right, otherwise
an inadvertent shift into 3rd or 4th gear could
damage the engine.<
Reverse gear
Select only when the vehicle is stationary.
When pressing the gearshift lever to the left,
overcome some resistance.
The backup lamps automatically switch on in
ignition key position 2.
SMG Sequential manual
transmission*
The concept
The SMG Sequential manual transmission is an
automated manual transmission in which an
electrohydraulic system handles the clutching
and gear changes.You operate the SMG using the selector lever in
the center console and two shift paddles on the
steering wheel.
It offers the following functions:
>Choice of manual or automatic mode:
Sequential mode or Drive mode
>Options of two drive programs: Normal or
Sport, refer to Dynamic Driving Control
page59
>Automatic downshifting and protection
against incorrect shifting even in sequential
operation
>Kick-down function in the Drive mode
>Acceleration assistant, refer to page59.
The SMG is operational in ignition key
position 2.
Selector-lever positions
The current selector-lever position is displayed
on the center console.
>R: Reverse gear
>N: Neutral, idle
>One-touch functions for Sequential mode:
+: manual upshifting
–: manual downshifting
>D: Drive mode
The transmission automatically shifts into
N if the driver's door is opened with the
engine running and neither the pedals, the shift
paddles nor the selector lever are operated.
This is indicated by an acoustic signal and the
flashing display N in the instrument cluster.<

Controls
59Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
recommended for a performance-oriented driv-
ing style. It is engaged automatically when the
Dynamic Driving Control is activated, see
below.
When the selector lever is briefly moved for-
ward or back, the manual mode is activated and
the Steptronic shifts gear. The instrument clus-
ter shows M1 through M6.
Upshifts and downshifts are executed only
when they will result in a plausible combination
of engine and vehicle speed; thus, for example,
a downshift that would cause the engine to
overrev will not be executed by the system. The
selected gear appears briefly in the instrument
cluster, followed by the current gear.
To use the automatic function again, move the
selector lever to the right into position D.
Dynamic Driving Control
The Dynamic Driving Control makes it possible
for your BMW to react in an even more perfor-
mance-oriented manner at the push of a button:
>The engine responds more spontaneously
to accelerator pedal movements.
>Cruise control:
The stored speed is reached more quickly
when it is requested.
Additionally with SMG:
>Gearshifts are faster.
>The engine speed range is used optimally in
the Drive mode.
With automatic transmission:
>The Sport program is activated.
Activating system
In ignition key position 2, press the SPORT but-
ton.
The LED in the button lights up and SPORT is
displayed in the instrument cluster.
Deactivating system
>Press the SPORT button again or
>engage reverse gear or
>switch off the engine.
The LED in the button and SPORT in the instru-
ment cluster go out.
Acceleration assistant with SMG
The acceleration assistant enables optimized
vehicle acceleration at racing car level on road
surfaces with good adhesion when starting off.
Do not use the acceleration assistant too
often, as otherwise components will wear
prematurely.<
1.Activate the Dynamic Driving Control.
2.Press the DTC button, refer to page82, for
longer than three seconds.
3.Press the accelerator pedal down fully:
Kick-down. The ideal starting-off engine
speed is set.
To maintain driving stability, do not deac-
tivate DSC if at all possible.<

Controls
61Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
The system reverts to operation at normal
speed whenever the vehicle is stationary.
Rain sensor
Wiper operation is controlled automatically as a
function of the rain intensity. The rain sensor is
located on the windshield, directly in front of the
interior rearview mirror.
Activating rain sensor
Press button. The LED in the button lights up.
Adjusting rain sensor sensitivity level
Turn the serrated dial 5.
Deactivating rain sensor
Press the button again. The LED goes out.
Deactivate the rain sensor when passing
through an automatic car wash. Failure to
do so could result in damage caused by undes-
ired wiper activation.<
Cleaning windshield and headlamps
The system sprays washer fluid against the
windshield and activates the wipers for a brief
period.
When the vehicle lighting system is switched
on, the headlamps are also cleaned at regular
and appropriate intervals.
Do not use the washers if there is any
danger that the fluid will freeze on the
windshield. If you do so, your vision could be
obscured. To avoid freezing, use a washer fluid
antifreeze, refer to Washer fluid.
Do not use washers when the washer fluid res-
ervoir is empty, as otherwise the washer pump
will be damaged.<
Windshield washer nozzles
The windshield washer nozzles are automati-
cally heated in ignition key position 2.
Washer fluid
Washer fluid antifreeze is flammable.
Always keep it well away from sparks and
open flames, and store it in tightly closed con-
tainers well out of the reach of children. Always
observe the instructions for use provided on the
containers.<
Washer fluid reservoir
Capacity approx. 5.3 US quarts/5 liters
Fill with water and – if required – with a washer
antifreeze, according to manufacturer's recom-
mendations.
In order maintain the mixture ratio, mix
the washer fluid before filling.<
Cruise control
The concept
The cruise control is available for use at speeds
of approx. 20 mph/30 km/h and higher. The
vehicle maintains and stores the speed that you
set using the lever mounted on the steering col-
umn.
Do not use the cruise control under driv-
ing conditions that do not permit a con-
stant speed, e.g.when driving on winding roads,
in heavy traffic or in poor road conditions such
as snow, rain, ice, and loose road surface.<

Controls
69Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Everything under control
Odometer, outside
temperature display, clock
When the ignition is off you can briefly activate
the time, outside temperature and odometer
displays by pressing the knob3 at the lower left
of the instrument cluster.
1 Outside temperature display, clock,
date
The outside temperature and the time are dis-
played from ignition key position 1 onwards.
To call up the date:
Press the CHECK button on the turn signal
lever, refer to page74.
Setting time and date, refer to page78.
You can set the measurement unit 7 or 6 on
the Control Display, refer to Measurement units
on page77.
Ice warning
A signal sounds when the outside temperature
falls to roughly +37.57/+36; this is accompa-
nied by a message.
Please bear in mind that the ice warning
does nothing to alter the fact that black
ice may be present on roads at temperatures
higher than +37.57/+36, e.g. on bridges and
shaded roads.<
2 Odometer and trip odometer
To reset the trip odometer to zero:
Press button3 in the instrument cluster.
Tachometer
The white-striped advance warning field,
arrow1, changes depending on the engine
temperature. The segments disappear in
sequence as the engine warms to its normal
operating temperature.
Avoid allowing the engine speed to rise as far as
the advance warning field whenever possible.
Engine speeds in the red warning field, arrow2,
must absolutely be avoided.
In this range, the fuel supply is interrupted to
protect the engine.

Everything under control
70
Engine oil thermometer
The engine oil temperature is between approx.
1607/706 and approx. 3407/1706 during
normal operation.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gage
Fuel tank capacity: approx. 18.5 US gallons/
70 liters, including the reserve capacity of
approx. 2.1 gallons/8 liters. You can find infor-
mation on refueling on page166.
If the tilt of the vehicle varies for a longer period,
when you are driving in mountainous areas, for
example, the indicator may fluctuate slightly.
After the reserve quantity has been reached, a
message appears for a short time on the Con-
trol Display; the remaining range is shown in the
computer. Below a range of approx. 30 miles/
50 km, the message remains on the Control
Display.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, as otherwise engine functions are not
ensured and damage can occur.<
Service requirements
The remaining distance to be driven and the
date for the next maintenance are briefly indi-
cated with the ignition key in position 2.
Your BMW Service Advisor will determine
your vehicle's current service require-
ments by reading out the data stored in the
master key.<
Additional information
You can view additional information on service
and maintenance procedures on the Control
Display.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Service" and press the controller.
3.Select "Service requirements" and press
the controller.
4.Select "Status" and press the controller.
The display shows a list of selected service and
maintenance procedures, as well as legally
mandated official inspections.

Everything under control
74
Computer
Requesting information
As of ignition key position 1, you can use the BC
button in the turn signal lever to call up com-
puter information in the instrument cluster.
A new function appears each time you press the
BC button.
In instrument cluster
The display sequence:
>Cruising range
>Average speed
>Average fuel consumption
Cruising range
Displays the estimated cruising range available
with the remaining fuel. It is projected by taking
into account the driving style over the last
20 miles/30 km.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, as otherwise engine functions are not
ensured and damage can occur.<
Average speed
Periods with the vehicle parked and the engine
off are not included in the calculations of aver-
age speed.
To reset the average speed: press the BC but-
ton in the turn signal lever for approx. 2 sec-
onds.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
You can use the Control Display to view your
fuel consumption rate over two different dis-
tances, refer to page75.
To reset the average fuel consumption: press
the BC button in the turn signal lever for approx.
2seconds.
On Control Display
You can also call up the computer via the Con-
trol Center, for principle details, refer to
page16.
1.Press the button.
This opens the start menu.
2.Move the controller to the right to open
"Navigation".
On vehicles without navigation system:
Open "Car Data".
3.Select "Car Data" and press the controller.
You can now choose between:
>Computer
>Trip computer,
suitable e.g. for a vacation trip