engine BMW 330Ci COUPE 2001 E46 User Guide

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IndexDataTechnologyRepairsCar careControlsOverview
Electronic vehicle immobilizer The key to securityYour BMW is equipped with a passive
antiÐtheft system. This electronic immo-
bilization system is designed to reduce
the susceptibility of the vehicle to theft
by making it impossible to start the
engine using any means other than the
special keys furnished with the vehicle.
Your BMW center can cancel the elec-
tronic system authorization for indi-
vidual keys (in the event of loss, for
instance). A deactivated key can no
longer be used to start the engine.46cde060
How the electronics workAt the heart of this system is an elec-
tronic chip that is integrated into the
key. The lock mechanism itself is actu-
ally a dual-function device, serving as a
communications interface designed to
allow the vehicle's electronics system
to maintain a continuous stream of vari-
able, vehicle-specific signals with the
electronic circuitry in the key. The
system will not release the ignition, fuel
injection and starter unless it recog-
nizes an "authorized" key.
Force applied to the key can
damage the integrated electronic
circuitry. A damaged key can no longer
be used to start the engine.<

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IndexDataTechnologyRepairsCar careControlsOverview
0 Steering lock engaged The key can only be inserted or
removed in this position.
After removing the key, turn the
steering wheel slightly to the left or right
until the lock engages.
If the key is not removed, a signal will
sound after the driver's door has been
opened.
Vehicles with automatic transmis-
sion:
Do not move the selector lever from the
"Park" position until the engine is
running (ignition key at position 2).
In order to turn the key back to posi-
tion 0 or to remove it, move the selector
lever into position "Park" first (Inter-
lock).<46cde093
1 Steering lock disengaged Turning the steering wheel slightly to
the right or left often makes it easier to
turn the key from 0 to 1.
Individual electrical devices are ready
for operation.2 Ignition onAll electrical devices and accessories
are available for use.3 Starting the engine
Vehicles with manual transmis-
sion:
Step on the clutch when starting the
vehicle. A lockout prevents the engine
from starting if the clutch is not
depressed.<
Before starting>Engage the parking brake.
>Put manual-shift gear lever in the
idling position or in P for automatic
transmissions.
>Step on the clutch pedal.
Do not run the engine in enclosed
areas. The exhaust gases contain
carbon monoxide, an odorless and
colorless, but highly toxic gas.
Breathing the exhaust gases poses an
extreme health risk, and can lead to
unconsciousness and death.
Do not leave the vehicle unattended
with the engine running. An unat-
tended vehicle with a running engine
represents a potential safety hazard.<
Steering/Ignition lock Starting the engine

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Starting the engine Switching off the engine Do not press the accelerator pedal
while starting the engine.
Do not actuate the starter for too
short a time, but do not actuate it
for more than approx. 20 seconds.
Release the ignition key immediately
when the engine starts.
Do not allow the engine to warm up by
leaving it running while the vehicle
remains stationary. Instead, begin
driving immediately at a moderate
engine speed.<
If the engine does not start on the first
attempt (if it is very cold or hot, for
instance):
>Press the accelerator pedal halfway
down while engaging the starter.
Cold starts at very low temperatures,
starting at about +57 (Ð156) and
at high altitudes above 3,300 ft
(1,000 meters):
>On the first start attempt, engage the
starter for a longer period (approx.
10 seconds).
>Press the accelerator pedal halfway
down while engaging the starter.
Engine idle speed is controlled by the
engine computer system. Increased
speeds at start-up are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from
discharging, always deactivate
electrical devices that are not in
use. Switch the ignition off when the
vehicle is not being driven.Turn the ignition key to position 1 or 0.
Do not remove the ignition key
while the vehicle is still moving.
If you did so, the steering lock would
engage when the steering wheel is
turned.
Whenever you leave the vehicle, always
remove the ignition key and lock the
steering wheel.
Vehicles with manual transmission:
Always apply the parking brake when
parking on slopes and inclined
surfaces, since placing the shift lever in
1st gear or reverse may not provide
adequate resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in "Park."<

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Manual transmission Press the clutch pedal all the way down
each time you shift, pressing the
manual-shift gear lever into its proper
end position.
Depress the clutch when starting the
vehicle, too, otherwise, lockout will
prevent the engine from starting if the
clutch is not depressed.
The shift lever's neutral plane (dot in the
illustration) is located between 3rd and
4th gears.
When shifting from each gear into
"Neutral," the shift lever returns auto-
matically to this neutral position
because of its spring loading.460us024
Reverse Select only when the vehicle is
stationary. Press the shift lever to the
left to overcome the slight resistance.
As you do this, the backup lamps will
turn on automatically when the ignition
key is in position 2.
Do not hold the vehicle in place on
slopes by slipping or "riding" the
clutch. Use the parking brake instead.
Otherwise, riding the clutch will cause
tremendous wear and tear to the
clutch.<

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic transmission with Steptronic
*
You have the option of driving with a
normal automatic transmission or
switching to manual.
When you move the selector lever from
the "D" position to the left into the M/S
range, the performance-oriented shift
programs of the automatic transmission
are engaged. As soon as you even
begin to move the selector lever toward
the "+" or tap "Ð", Steptronic shifts the
gear and manual operation becomes
active. Whenever you want to use the
automatic mode again, move the
selector lever to the right into posi-
tion "D."
The automatic transmission with Step-
tronic is equipped with Adaptive Trans-
mission Control (ATC). ATC reacts with
precision to your individual driving style
and the current driving conditions. It is
for this reason that various shift
programs are used.
You will find additional information
about ATC in the chapter called
"Advanced Technology" on page 174.
Selector lever positions
P R N D M/S + Ð
Starting the engineThe engine can only be started in
selector lever positions P ("Park") or N
("Neutral").Range selectionA detent prevents inadvertent shifts into
certain selector lever positions. To
disengage the detent, press the button
on the front of the shift knob (arrow).462us044
While the vehicle is stationary and
before shifting out of "Park" or
"Neutral," depress the brake, other-
wise you will not be able to move the
selector lever (Shiftlock).
Hold the footbrake down until starting
off. Otherwise the vehicle will "creep"
when a drive position is engaged.<
If you leave the vehicle with the
engine running, move the selector
lever to the "Park" or "Neutral" position
and apply the parking brake. If you fail
to do this, the vehicle could move. Do
not leave the vehicle unattended with
the engine running. An unattended
vehicle with a running engine repre-
sents a potential safety hazard.<
P ParkSelect only when the vehicle is
stationary. The transmission locks to
prevent the rear wheels from turning.R ReverseSelect only when the vehicle is
stationary.N NeutralSelect only if your journey is interrupted
for a longer period.

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Automatic transmission with Steptronic
*
D Drive (automatic shift program)This position is designed for driving
under all normal operating conditions.
All forward gears are available, the
Adaptive Transmission Control (ATC) is
fully operational."Kickdown"In the "Kickdown" mode, you achieve
maximum performance. To activate this
mode, depress the accelerator pedal
beyond the full-throttle position, at
which a resistance point must be
overcome.
M/S Manual mode and
Sport ProgramShifting from D into M/S activates the
Sport Program and indicates SD in the
gear indicator. This position is recom-
mended for a performance-oriented
driving style.
With the first brief touch, the automatic
transmission shifts from the Sport
Program to the manual mode. When
you move the selector lever forward in
the "+" direction, the transmission shifts
up. When the lever is moved back in the
"Ð" direction, the transmission shifts
down. M1 to M5 appear in the gear
indicator.462us045
Upshifts or downshifts will be carried
out by the ATC only at appropriate
engine and road speeds, e. g. the
engine will not downshift if engine
speed is too high. The gear selected
will appear briefly in the instrument
cluster followed by the current gear.
To accelerate quickly in the
manual mode (to pass another
vehicle, for instance), shift down manu-
ally or employ the kickdown mode.<
Shifting from M/S to the selector lever
positions P, R and N is possible only by
going through D.

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic transmission with Steptronic
*
In the following situations, the Step-
tronic "thinks" for you in the manual
mode:
>In order to prevent the engine from
overrevving, the transmission shifts
automatically to the next higher gear
just before the engine speed cutoff
point.
>If you do not do anything to inter-
vene, it will automatically downshift
at lower speeds.
>In the kickdown mode, the transmis-
sion shifts down to the lowest gear
which is possible, depending on the
engine speed.
>Depending on the situation Ñ when
driving in adverse winter conditions,
for example Ñ you may also start out
in 2nd or 3rd gear.
Possible displays
P R N D SD M1 M2 M3 M4 M5
Electronic transmission control
module
If the indicator lamp comes on,
there is a malfunction in the
transmission system.
46cus005
Bring the vehicle to a stop. Move the
transmission selector lever to "P." Set
the parking brake and turn the engine
off (ignition key to position 0).
Wait a few seconds, then start the
engine.
If the indicator lamp goes out after a
few seconds, normal transmission
performance has been restored. You
may continue to drive as usual.
If the indicator lamp does not go out,
you can place the selector lever in all
positions. However, the vehicle will now
only operate in 3rd and 4th gear.
If this happens, avoid extreme engine
loads and consult the nearest BMW
center.
Do not work in the engine
compartment when a drive gear
(forward or reverse) is engaged. If you
do this, the vehicle could move.<
For towing or jump-starting, refer to the
information beginning on page 168.

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IndexDataTechnologyRepairsCar careControlsOverview
Cruise controlStarting at about 20 mph (30 km/h), you
can maintain and store any vehicle
speed that you specify.
Do not use cruise control on
twisting roads, when high traffic
density prevents driving at a constant
speed, when the road surface is slick
(snow, rain, ice), or when the road
surface is loose (rocks, sand). Press button 1. The indicator lamp in
the instrument cluster comes on. You
can now use the cruise control.46cde086
To store and maintain speed or to
acceleratePress button 3 briefly:
The system registers and maintains the
current vehicle speed. Every time you
tap the button, the speed increases by
approx. 0.6 mph (1 km/h).
Press and hold button 3:
The vehicle accelerates without pres-
sure on the accelerator pedal. When
you release the button, the system
registers and maintains the current
speed.
If, on a downhill gradient, the
engine braking effect is not
sufficient, the set cruise control speed
may be exceeded. Speed can drop on
uphill grades if the engine output is
insufficient.<
To deceleratePress button 2 briefly:
Whenever cruise control is active, your
speed will reduce by approx. 0.6 mph
(1 km/h) each time you tap the button.
Press and hold button 2:
With the cruise control active, the
system automatically reduces the
throttle opening to slow the vehicle.
When you release the button, the
system registers and maintains the
current speed.

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IndexDataTechnologyRepairsCar careControlsOverview
1 Odometer You can activate the displays shown in
the illustration with the ignition key in
position 0 by pressing the button in the
instrument cluster (arrow).2 Trip odometerTo reset the trip odometer to zero,
press the button (arrow) with the igni-
tion key in position 1 and up.462us005
Avoid engine speeds in the red warning
zone of the gauge.
To protect the engine, the fuel supply is
automatically interrupted in this zone;
you will notice a loss of power.462us017
Indicates current fuel consumption in
mpg (in l/100 km on Canadian vehicles).
You can check your current driving
style to see whether it is conducive to
economy and minimum exhaust emis-
sions.
When the vehicle is stationary, the
display goes to "Maximum" (zero on
Canadian vehicles).462us018
Odometer Tachometer Energy Control

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Fuel gauge Temperature gauge Service Interval Display When you switch on the ignition, the
indicator lamp comes on briefly to
confirm that the system is operational.
Once the indicator lamp stays on
continuously, there are still approx.
2 gallons (8 liters) of fuel remaining in
the fuel tank.
For fuel tank capacity, refer to page 187.
If the tilt of the vehicle varies (extended
driving in mountainous areas, for
example), there may be slight fluctua-
tions of the needle.
Fill the fuel tank well before it is
empty. Driving to the last drop of
fuel can result in damage to the engine
and/or the catalytic converter.<462us020
BlueThe engine is still cold. Drive at
moderate engine and vehicle speeds.RedWhen you switch on the ignition, the
indicator lamp comes on briefly to
confirm that the system is operational.
If the lamp comes on while operating
the vehicle: the engine is overheated.
Stop and switch the engine off immedi-
ately and allow it to cool down.Between the blue and red zonesNormal operating range. It is not
unusual for the needle to rise as far as
the edge of the red zone in response to
high outside temperatures or severe
operating conditions. Checking coolant
level: refer to page 137.460de082
Remaining distance for serviceThe displays shown in the illustration
appear for a few seconds when the
ignition key is in position 1 or after the
engine is started.
The next service due appears with the
message OILSERVICE or INSPECTION,
together with the distance remaining
before the next scheduled service.
The computer bases its calculations of
the remaining distance on the previous
driving style.
A flashing message and a "Ð" in front of
the number mean that the service
interval has already been exceeded by
the distance shown on the display.
Please contact your BMW center for an
appointment.46cus006