2012 BMW M3 CONVERTIBLE engine

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Controls overview
Controls
Tachometer
Never force the engine speed up into the red
warning field, see arrow. In this range, the fuel
supply is interrupted to protect the engine.
Engine oil temperature
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 210
7/100 6 and approx. 300 7/
150 6.
If the engine oil temperature is too high, a warn-
ing lamp lights up in the instrument cluster.
Fuel gauge
Fuel tank capacity: approx. 16.1 US gal/
61 liters.
You can find information on refueling on
page 175.
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.
Reserve
Once the fuel level has fallen to the reserve
zone of approx. 2.1 US gal/8 liters, the indicator
lamp and the cruising range for the remaining
amount of fuel light up briefly. The indicator
lamp remains permanentl y on when the remain-
ing range is less than approx. 30 miles/50 km.
With a dynamic driving style, e.g. rapid corner-
ing, engine functions are not always assured.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km; otherwise, engine functions are not
ensured and damage can occur. <
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ControlsControls overview
Computer
Displays in the instrument cluster
Calling up information
Press the button in the turn signal/high beam
lever.
The following items of information are dis-
played in the order listed:
>Cruising range
> Average speed
> Average fuel consumption
> Current fuel consumption
> No information
To set the corresponding units of measure,
refer to Formats and units of measure on
page 83.
Cruising range
Displays the estimated cruising range available
with the remaining fuel. The range is calculated
on the basis of the way the car has been driven
over the last 18 miles/30 km and the amount of
fuel currently in the tank.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km; otherwise, engine functions are not
ensured and damage can occur. <
Average speed
Periods with the vehicle parked and the engine
switched off are not included in the calculations
of average speed. To reset average speed: press the button in the
turn signal/high beam lever for approx.
2seconds.
Average fuel consumption
The average fuel consumption is calculated for
the time during which the engine is running.
To reset average fuel consumption: press the
button in the turn sign
al/high beam lever for
approx. 2 seconds.
Current fuel consumption
Displays the current fu el consumption. This
allows you to see whether your current driving
style is conducive to fuel economy with mini-
mum exhaust emissions.
Displays in BMW Professional radio
Calling up information
1. Switch on radio readiness or ignition.
2. Press the button.
3. Press the button.
Fuel consumption
Displays the average fuel consumption, e.g. for
the whole trip, a leg of the trip, or after each
refueling. The average fu el consumption is cal-
culated for the time duri ng which the engine is
running.
To start the of the consumption calculation:
1. Press the button.
2. Press the button.
The previous display is set to zero and the
system begins to recalculate the average
fuel consumption.
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81
Controls overview
Controls
Average speed
An average speed driven can be displayed.
The average speed is calculated for the time
during which the engine has been running.
To start the calculation of the average speed:
1.
Press the button.
2. Press the button.
The previous display is set to zero and the
system begins to recalculate the average
speed.
Cruising range
"RANGE"
The display shows the es timated distance that
can still be driven with the existing fuel quantity,
taking into account the prior average fuel con-
sumption.
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84
ControlsControls overview
3.
Press the button.
> "DIST": change the unit of measure-
ment for the range.
> "LANG": select the language of the dis-
play text.
> "CONSMP": change the unit of mea-
surement for the average fuel consump-
tion.
> "TEMP": change the unit of measure-
ment for the external temperature.
4. Highlight the desired menu item and press
the button.
5. Make the desired setting.
The settings of the units of measurement are
adopted for the displays in the radio and in the
instrument cluster and ar e stored in the remote
control currently in use.
Service requirements
The remaining driving distance and the date of
the next scheduled servic e are displayed briefly
immediately after you start the engine or switch
on the ignition.
The extent of service work required can
be read out from the remote control by
your dealership Service Advisor. <
For certain maintenance operations, you can
view the respective distance remaining or due
date individually in the instrument cluster. 1.
Switch on the ignition, refer to page 57.
2. Push button 1 in the turn signal/high beam
lever up or down repe atedly until the appro-
priate symbol appear s in the display,
accompanied by the words "SERVICE-
INFO".
3. Press button 2.
4. Use button 1 to scroll through the individual
service items.
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85
Controls overview
Controls
Possible displays
1
Button for selecting functions
2 Service requirements
3 Engine oil
4 Roadworthiness test 5
Front brake pads
6 Rear brake pads
7 Brake fluid
The sequence of displayed service items may
vary. The data for the ne xt service appointment
is shown first.
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87
Controls overview
Controls
Check Control
The concept
The Check Control monitors vehicle functions
and alerts you to any malfunctions in the sys-
tems monitored. This type of Check Control
message includes indicator and warning lamps
in the instrument cluster and, in some cases, an
acoustic signal.
Indicator and warning lamps can light up in a
variety of combinations and colors.
Several of the lamps are checked for proper
functioning and light up temporarily when the
engine is started or the ignition is switched on.
Indicates that Check Control messages have
been stored. These Check Control messages
can be viewed again later, refer to page88.
What to do in case of a malfunction
The meaning of each lamp in the event of a mal-
function and tips on how to respond are listed
starting on page220.
Hiding Check Control messages
Press the button on the turn signal/high beam
lever.
>Some Check Control messages are dis-
played continuously an d remain visible until
the malfunction has been rectified. If several
malfunctions occur at once, the messages
are displayed consecutively.
These messages can be hidden for approx.
8 seconds. After this, they are displayed
again automatically.
> Other Check Control messages are hidden
automatically after approx. 20 seconds.
They are stored and can be displayed again
later.
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89
Technology for driving comfort and safety
Controls
Technology for driving comfort and safety
Vehicle equipment
In this chapter, all production, country, and
optional equipment that is offered in the model
range is described. For this reason, descrip-
tions will be given of some equipment that may
not be available in a vehi
cle, for example due to
the special options or national-market version
selected. This also app lies to safety related
functions and systems.
Park Distance Control PDC
The concept
The PDC assists you with maneuvering in tight
parking spaces. Acoustic signals warn you of
the presence of an object in front of or behind
your vehicle. To meas ure the distance, there
are four ultrasonic sensors in either bumper.
An acoustic warning sounds when an object is
less than approx. 24 in/60 cm from the front
sensors and rear corner sensors or less than
approx. 5 ft/1.50 m from the rear center sen-
sors.
PDC is a parking aid that can indicate
objects when they are approached
slowly, as is usually th e case when parking.
Avoid approaching an object at high speed; oth-
erwise, physical circumstances may lead to the
system warning being issued too late.<
Switching on automatically
With the engine running or the ignition switched
on, the system is activated after approx. one
second when you shift in to reverse or move the
automatic transmission selector lever to
position R. Wait this short period before driving.
Switching off automatically
After approx. 55 yd/50 m of driving or above
approx. 20 mph/approx. 30 km/h, the system
switches off and the LED goes out.
Switching on manually
When parking in the forward direction, the sen-
sors must be switched on manually to enable
them to signal an approach to an object in front
of or behind the vehicle.
Press the button; the LED lights up.
Switching off manually
Press the button again; the LED goes out.
Signal tones
When nearing an object, its position is indicated
correspondingly by an interval tone. For exam-
ple, if an object is detected behind the vehicle,
the signal tone sounds from the rear. As the dis-
tance between vehicle an d object decreases,
the intervals betwee n the tones become
shorter. If the distance to the nearest object
falls to below roughly 1 ft/30 cm, then a contin-
uous tone sounds.
An interval tone is in terrupted after approx.
3seconds
> If you remain in front of an object that has
been detected by only one of the corner
sensors
> If you are driving parallel to a wall.
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ControlsTechnology for driving comfort and safety
Malfunction
The warning lamp lights up. PDC is
malfunctioning. Have the system
checked.
To avoid this problem, keep the sensors clean
and free of ice or snow in order to ensure that
they will continue to op erate effectively. When
using a high-pressure cleaner, do not spray the
sensors for extended periods of time and only
from a distance of at least 1 ft/30 cm.
Manual operation
The LED above the button also flashes.
System limitations
Even with PDC, final responsibility for
estimating the distance between the
vehicle and any obstructions always remains
with the driver. Even when sensors are pro-
vided, there is a blind sp ot in which objects can
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms
of ultrasonic measurement, such as those
encountered with traile r towbars and hitches,
thin or wedge-shaped objects, etc. Low objects
that have already been displayed, e.g. curbs,
can disappear again from the detection area of
the sensors before or af ter a continuous tone
sounds. Higher, protruding objects, e.g. ledges,
cannot be detected. Therefore, always drive
cautiously; otherwise, there is a risk of personal
injury or property damage.
Loud sound sources outside or inside the car
can drown out the PDC signal. Therefore,
always drive cautiously; otherwise, there is a
risk of personal injury or property damage. <
Driving stability control
systems
Your BMW has a number of systems that help
to maintain the vehicle's stability even in
adverse driving conditions.
ABS Antilock Brake System
ABS prevents locking of the wheels during
braking. Safe steering response is maintained
even during full braking. Active safety is thus
increased.
The ABS is operational every time you start the
engine. Braking safely, refer to page 134.
Electronic brake-force distribution
EBV
The system controls the brake pressure in the
rear wheels to ensure stable braking behavior.
Dynamic Brake Control DBC
When you apply the brakes rapidly, this system
automatically produces the maximum braking
force boost and thus helps to achieve the short-
est possible braking distance during full brak-
ing. This system exploits all of the benefits pro-
vided by ABS.
Do not reduce the pressu re on the brake for the
duration of the full braking application.
Dynamic Stability Control DSC
DSC prevents the driving wheels from losing
traction when you pull away from rest or accel-
erate. The system also recognizes unstable
driving conditions, for example if the rear of the
car is about to swerve or if momentum is acting
at an angle past the front wheels. In these
cases, DSC helps the vehicle maintain a safe
course within physical lim its by reducing engine
output and through braking actions at the indi-
vidual wheels.
The laws of physics cannot be repealed,
even with DSC. An appropriate driving
style always remains th e responsibility of the
driver. Therefore, do not reduce the additional
safety margin again by taki ng risks, as this could
result in an accident. <
Online Edition for Part no. 01 40 2 609 312 - \251 08/11 BMW AG