2006 BMW M3 COUPE engine

25
Closing the gas capPlace the cap in position and turn it
until a clearly audible click is heard.
Close the gas cap carefully after
refueling until a click is heard.
While closing, be sure not to squeeze
the strap which is fastened to the cap.
A loose or missing cap will activate the
CHECK GAS CAP* lamp.<
Warning lamp* lights up. The
gas cap is not properly closed
or is missing. Check if the gas
cap is properly closed.Fuel tank capacity>Approx. 16.6 gal./63 liters, of which
>approx. 2.1 gal./8 liters are reserve
capacity.
Do not drive to the last drop of
fuel. This can prevent the engine
from operating properly and result in
damage.<
Fuel specificationsThe engine uses lead-free gasoline
only.Required fuelPremium Unleaded Gasoline,
Minimum Octane Rating: AKI 91.
Minimum Octane Rating corresponds to
the Anti Knock Index AKI and is deter-
mined according to the so-called
(R+M)/2 method.
Do not use leaded gasoline, as
otherwise the lambda probe and
catalytic converter will be permanently
damaged. cant differences in fuel quality: volatility,
composition, additives, etc., among
gasolines offered for sale in the United
States and Canada. Fuels containing up
to and including 10 % ethanol or other
oxygenates with up to 2.8 % oxygen by
weight, that is, 15 % MTBE or 3 % meth-
anol plus an equivalent amount of co-
solvent, will not void the applicable
warranties with respect to defects in
materials or workmanship.
The use of poor-quality fuels may
result in drivability, starting and
stalling problems especially under cer-
tain environmental conditions such as
high ambient temperature and high alti-
tude.
Should you encounter drivability prob-
lems which you suspect could be
related to the fuel you are using, we
recommend that you respond by
switching to a recognized high-quality
brand.
Failure to comply with these recom-
mendations may also result in unsched-
uled maintenance.<
Refueling
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60
>After the engine is started, calls up
the last selected driving program for
each shifting mode, refer to page 69.Vehicle Memory, Key Memory

61 Driving
Ignition lockIgnition key positions0Steering locked
1Steering unlocked
2Ignition switched on
3Starting engineSteering lockedThe key can only be inserted and
removed in this position.
After removing the key, turn the steer-
ing wheel slightly to the left or right until
the lock engages.
If the key is not removed, an acoustic
signal is sounded after the driver's door
has been opened.
Steering unlockedYou will find that it is often easier to turn
the ignition key from position 0 to posi-
tion 1 when you move the steering
wheel slightly to help disengage the
lock.
Individual electrical accessories are
ready for operation.
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62
Starting the engine and driving off
Do not allow the engine to warm
up by leaving it running while the
vehicle remains stationary. Instead,
drive off immediately at a moderate
engine speed.<
Do not allow the engine to run in
enclosed spaces. Otherwise,
breathing the exhaust fumes can lead
to unconsciousness and death. The
exhaust gases contain carbon monox-
ide, an odorless and colorless, but
highly toxic gas. Do not leave the vehi-
cle unattended with the engine running.
An unattended vehicle with a running
engine represents a safety hazard.
If you leave the vehicle with the engine
running, move the gearshift lever into
the idling position or the selector lever
into position N, as applicable, and
apply the parking brake. If you fail to do
this, the vehicle could move.<
>Do not press the accelerator pedal
while starting the engine
>Do not end the starting procedure too
early, but do not continue it for more
than 20 seconds
>Release the ignition key immediately
when the engine starts
>Do not let the engine warm up in
idling position. Instead, begin to drive
at moderate engine speeds.
If the engine does not start on the first
attempt, such as when it is very hot or
cold:
Press the accelerator pedal halfway
down while engaging the starter.
Cold starts at very low temperatures
below about +57/–156 and at high
altitudes above 3,300 ft/1,000 m:
>On the first attempt, engage the
starter for approx. 10 seconds
>Press the accelerator pedal halfway
down while engaging the starter.
Extended starting attempts, char-
acterized by excessively frequent
or long periods with the starter
engaged can damage the catalytic con-
verter.<
When driving, standing at idle or
parking the vehicle, take care to
avoid contact between the hot exhaust
system and flammable materials –
grass, hay, leaves, etc. Such contact
could lead to a fire, resulting in serious
personal injury and property damage.<
Manual transmission1. Engage the parking brake
2. Gearshift lever in idling position
3. Depress the clutch pedal.
If the clutch pedal is not depressed,
the engine cannot be started
4. Start the engine. Do not press the
accelerator pedal. Do not actuate the
starter for too short a time. Do not
turn it for more than approx.
20 seconds. Release the ignition key
immediately when the engine startsSequential M gearbox with
Drivelogic1. Depress footbrake
2. Move selector lever into position N
3. Start the engine. Do not actuate the
starter for too short a time. Do not
turn it for more than approx.
20 seconds. Release the ignition key
immediately when the engine starts
4. Engage a driving position
5. Release footbrake and slowly
depress accelerator pedal.

63
With the engine running, the gear
indicator in the SMG Drivelogic
display flashes to indicate that a driving
position is engaged with the driver's
door open or that the hood is not
closed properly, refer to page 67.
If neither the pedals, the shift paddles,
nor the selector lever are actuated, then
the gearbox is automatically taken out
of gear after approx. four seconds. It
will then be necessary to move the
selector lever back to position N before
engaging the desired driving position.
Driving off is not possible with the hood
open.<
Before exiting the vehicle with the
engine running, move the selector
lever into position N and apply the
parking brake.
Never leave the vehicle unattended
with the engine running. An unat-
tended vehicle with a running engine
represents a safety hazard.<
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 discharg-
ing, always deactivate electrical
devices that are not in use. Switch the
ignition off when the vehicle is not
being driven.
Starting the engine and driving off
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64
Switching off the engine
You should never remove the igni-
tion key when the vehicle is in
motion, as the steering lock could
engage.
When you leave the vehicle, always
remove the ignition key and engage the
steering lock.<
Always engage the parking brake
when parking on downhill roads.
Engaging a gear may not sufficiently
secure the vehicle against rolling.<
Manual transmissionTurn the ignition key to position 1 or 0.Sequential M gearbox with
DrivelogicIf you turn the ignition key to position 1
or 0 with the selector lever in the for-
ward or reverse position, a gear auto-
matically remains engaged.
If you turn the ignition key to position 1
or 0 with the selector lever in position
N, a warning tone and the flashing gear
indicator in the SMG Drivelogic display
remind you that no gear is engaged to
secure the vehicle against rolling.
The warning stops after approx.
10 seconds. If you move the selector
lever into a forward or reverse position
during this time, a gear is automatically
engaged.
Parking brakeThe parking brake is designed primarily
to prevent the vehicle from rolling when
it is parked. It operates against the rear
wheels.To engageThe detent engages automatically, and
the indicator lamp in the instrument
cluster comes on when the ignition key
is in position 2, refer to page 18.To releasePull up slightly on the lever, press the
button and lower the lever.

67
SMG display in instrument clusterThe selector lever position, currently
engaged gear and selected driving pro-
gram are displayed in the instrument
cluster.
1Engaged gear
2Selected driving program, corre-
sponds to the number of illuminated
fields, refer to page 69
3Tapping the selector lever to the right
switches over into the displayed shift
mode
4D indicates that an automated shift
mode is activated
R – Reverse position Only engage with the vehicle stopped
or at low speed, e.g. for rocking free in
deep snow.
An intermittent signal tone indi-
cates that the reverse position has
been engaged. engine.
If the driving situation requires, e.g.
when downshifting on slippery roads,
the SMG Drivelogic automatically dis-
engages and reengages the clutch, i.e.
it is not necessary to manually engage
position 0.S – Sequential modeIn the sequential mode all forward
gears are to be shifted by the driver.
To switch from automated to sequential
mode:
>Tap the selector lever to the right
toward S or
>change gears with the selector lever
or the shift paddles on the steering
wheel.
You do not need to reduce the throttle
for shifting.
Sequential M gearbox with Drivelogic*
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68
Shifting gears with shift paddles on
steering wheel:
>To upshift, briefly pull the right pad-
dle +
>To downshift, briefly pull the left pad-
dle –.
Shift paddles with various widths
matched to the shape of your
hand are available from your BMW cen-
ter.<
Shifting gears with selector lever:
>To upshift, pull the selector lever
backward in the + direction
>To downshift, push the selector lever
in the – direction.
No automatic upshifting is carried out in
the sequential mode.
You accelerate from higher gears, e.g.
during passing, by manually downshift-
ing.
In the following situations the
SMG Drivelogic in the sequential mode
assists you:
>Upshifts and downshifts are only exe-
cuted at appropriate combinations of
engine rpm and vehicle speed. For
instance, downshifts that would
result in excessive engine speed are
not executed
>During a stop the gearbox is auto-
matically downshifted into the first
gear so that, e.g. before a traffic light,
it is only necessary to accelerate to
continue driving
>As speed diminishes, the gearbox
downshifts automatically, without you
taking any action, just before the
vehicle slows to below each gear's
minimum speed.D – Automated modeEach time the engine is started, the
automated mode is activated as soon
as you move the selector lever into the
forward driving position.
In the automated mode all forward
gears are shifted automatically.To switch from sequential to automated
mode: tap the selector lever to the right
toward D. Watch the display in the
instrument cluster, refer to page 67.
For rapid acceleration, e.g. during
passing, depress the accelerator pedal
completely – kickdown. The gearbox
now downshifts depending on the
selected driving program.
Even in the automated mode, you can
help specify the shifting point: if a gear-
dependent minimum speed is
exceeded, you can upshift by slowly
reducing pressure on the accelerator
pedal. In the process, the respective
driving situation is detected by sensors
and taken into account.
Sequential M gearbox with Drivelogic*