2008 BMW 335I CONVERTIBLE cluster

Driving
66
Cruise control*
The concept
Cruise control is available for use at speeds of
approx. 20 mph or 30 km/h. The car then stores
and maintains the speed that you specify using
the lever on the steering column. In order to
maintain the specified speed, the system
brakes the vehicle when the engine braking
effect is insufficient on downhill gradients.
Do not use cruise control when driving at
constant speed is prevented by adverse
conditions, e.g. winding roads, dense traffic or
poor road conditions due to, e.g., snow, rain, ice
or loose surfaces. Otherwise you could lose
control of the vehicle and cause an accident as a
result.<
Manual transmission
You can shift gears while cruise control is acti-
vated. An indicator lamp notifies you that you
should shift gears when you drive for an
extended period at very high or very low engine
speeds, or the system is deactivated.
One lever for all functions
1Storing and maintaining speed or accelerat-
ing
2Storing and maintaining speed or deceler-
ating
3Deactivating cruise control
4Resuming a speed stored beforehand
Maintaining current speed
Tap the lever, arrow 1, or pull it briefly, arrow 2.
The car's current speed is stored and main-tained. It is displayed on the speedometer and
briefly in the instrument cluster.
On uphill gradients, it may prove impossible to
maintain the set speed if current engine power
output is insufficient. If the engine braking
effect is insufficient on downhill slopes, the sys-
tem will brake the vehicle slightly.
Increasing desired speed
Repeatedly press the lever to the resistance
point or beyond, arrow1, until the desired
speed is reached.
>Each time the lever is pressed to the resis-
tance point, the desired speed is increased
by approx. 1 mph or 1 km/h.
>Each time the lever is pressed beyond the
resistance point, the desired speed is
increased by up to 5 mph or 10 km/h.
The system stores and maintains the speed.
Accelerating using the lever
Accelerating slightly:
Press the lever to the resistance point, arrow 1,
until the desired speed is reached.
Accelerating significantly:
Press the lever beyond the resistance point,
arrow 1, until the desired speed is reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores and
maintains the speed.
Decreasing speed
Repeatedly pull the lever to the resistance point
or beyond, arrow 2, until the desired speed is
displayed.
>Each time the lever is pulled to the resis-
tance point, the desired speed is decreased
by approx. 1 mph or 1 km/h.
>Each time the lever is pulled beyond the
resistance point, the desired speed is
reduced by up to 5 mph or 10 km/h until the
minimum speed of 20 mph or 30 km/h is
achieved.
The system stores and maintains the speed.

Controls
67Reference
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Deactivating cruise control
Tap the lever upwards or downwards, arrow3.
The displays on the speedometer disappear.
In addition, the system is automatically deacti-
vated:
>When you brake the vehicle
>When you switch gears very slowly or shift
to idle in cars with manual transmission
>When you select the automatic transmis-
sion's neutral position N
>When you activate DTC or deactivate DSC
>When DSC or ABS is intervening
Cruise control is not deactivated by depressing
the accelerator pedal. Once the accelerator
pedal is released, the stored speed is achieved
again and maintained.
Warning lamp
The warning lamp comes on when
cruise control has been deactivated
by applying the parking brake or as a
result of DSC intervention. A message appears
on the Control Display.
Resuming a speed stored beforehand
Press the button, arrow4. The last stored
speed is resumed and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:
>When driving stability control systems are
intervening
>In ca rs with manua l transmiss ion: when you
shift gears very slowly or shift to idle posi-
tion
>In cars with automatic transmission: when
you engage selector lever position N
>When the ignition is switched off
Displays in the instrument cluster
1Stored speed
2Selected speed is displayed briefly
If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-
sible that the system prerequisites for operation
are currently not met.
Calling up Check Control messages, refer to
page84.<
Malfunction
The warning lamp comes on when
the system has failed. A message
appears on the Control Display. You
can find more information starting on page83.
Active cruise control*
The concept
With active cruise control, you can select a
desired speed which is not only automatically
maintained when driving on open roadways, but
also varied to maintain a selected distance set-
ting as slower traffic is encountered.
Active cruise control is a technological advance
over the familiar cruise control and is a welcome
relief from the constant adjustment of speed
that can accompany driving in traffic on high-
ways or other high-speed thoroughfares. Espe-
cially on longer trips, the system can reduce
fatigue and tension, while increasing your
enjoyment of driving. Please use it safely and
responsibly.
Within the limits of its capability, the system
automatically adapts the car's speed to that of a
slower vehicle in front of you. You can specify

Controls
69Reference
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Mobility
The car's current speed is stored. It is displayed
on the speedometer and briefly in the instru-
ment cluster.
Increasing desired speed
Press or tap the lever to the resistance point or
beyond, arrow1, until the desired speed is dis-
played.
>Each time the lever is tapped to the resis-
tance point, the desired speed is increased
by approx. 1 mph or 1 km/h.
>Each time the lever is tapped beyond the
resistance point, the desired speed is
increased by up to 5 mph or 10 km/h until
the maximum speed of 110 mph or
180 km/h is achieved.
The speed then displayed is stored and
achieved on a clear road.
Decreasing desired speed
Pull the lever, arrow 2, until the desired speed is
displayed.
The other functions work analogously to those
described under Increasing desired speed.
Selecting distance
>Press downward:
Increase distance
>Press upward:
Decrease distance.
The selected distance is displayed in the instru-
ment cluster.
Use good judgment to select the appro-
priate following distance given road con-
ditions, traffic, applicable laws and driving rec-
ommendations for safe following distance.
Otherwise, an accident risk could result.<
Distance 1
Distance 2
Distance 3
This distance is always set when
the system is used for the first
time after starting the engine.
Distance 4

Driving
70
Deactivating cruise control
Press the lever upward or downward, arrow3.
The displays on the speedometer disappear.
In addition, the system is automatically deacti-
vated:
>When you brake the vehicle
>When the speed is reduced to below
20 mph or 30 km/h due to a traffic situation
>When you switch gears very slowly or shift
to idle in cars with manual transmission
>When you select the automatic transmis-
sion's neutral position N
>When you activate the Dynamic Traction
Control DTC
>When you deactivate the Dynamic Stability
Control DSC
>When DSC or ABS is intervening
>When the system does not recognize any
objects for a longer period of time, e.g. on
infrequently traveled roads without a shoul-
der or guard rails, or if the radar sensor is
covered with dirt, refer to page71
>When you apply the parking brake
When the system is deactivated, you
must brake the vehicle yourself and/or
maneuver as necessary, otherwise there is a
risk of accident.<
Warning lamp
The warning lamp comes on when
active cruise control has been auto-
matically deactivated due to a driving
speed below 20 mph or 30 km/h, an application
of the parking brake or a DSC intervention. A
message appears on the Control Display.
Resuming stored desired speed and
distance
Briefly press the button, arrow 4.
The stored speed and distance are regained
and maintained.
In the following instances, the stored speed is
deleted and can no longer be resumed:
>When driving stability control systems are
intervening
>In cars with ma nua l trans mis sio n: when you
shift gears very slowly or shift to idle posi-
tion
>In cars with automatic transmission: when
you engage selector lever position N
>When the ignition is switched off
Displays in the instrument cluster
1Stored desired speed
2Shows yellow: vehicle detected ahead
Flashes in red: system cannot maintain dis-
tance; driver must brake the vehicle
Flashes in yellow: driving stability control
systems are intervening; cruise control is
deactivated
3Selected distance to vehicle ahead
The indicator lights up as soon as the sys-
tem is activated.
4Selected desired speed is temporarily dis-
played
If --- mph or --- km/h temporarily appears
in the instrument cluster display, it is pos-
sible that the system prerequisites for operation

Everything under control
74
Everything under control
Odometer, outside
temperature display, clock
1Knob in the instrument cluster
2Outside temperature display and clock
3Odometer and trip odometer
Knob in the instrument cluster
>To reset the trip odometer while the ignition
is switched on
>To display the time, outside temperature
and odometer briefly while the ignition is
switched off
Units of measure
To select the respective units of measure, miles
or km for the odometer as well as 7 or 6 for
the outside temperature, refer to page78.
The setting is stored for the remote control cur-
rently in use.
Time, outside temperature display
Setting the time, refer to page81.
Outside temperature warning
When the displayed temperature sinks to
approx. +377/+36, a signal sounds and a
warning lamp lights up. There is an increased
risk of black ice.
Black ice can also form at temperatures
above +377/+36. You should there-
fore drive carefully on bridges and shaded roads, for example, otherwise there is an
increased risk of an accident.<
Odometer and trip odometer
Resetting trip odometer:
With the ignition switched on, press button1 in
the instrument cluster.
When the vehicle is parked
If you still want to view the time, outside tem-
perature and odometer reading briefly after the
remote control has been taken out of the igni-
tion lock:
Press button 1 in the instrument cluster.
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.

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Coolant temperature
A warning lamp will come on if the coolant, and
therefore the engine, becomes too hot. In addi-
tion, a message will appear on the Control Dis-
play.
Check coolant level, refer to page228.
Engine oil temperature*
When the engine is at normal operating temper-
ature, the engine oil temperature is between
approx. 2107/1006 and approx. 3007/
1506.
If the engine oil temperature is too high, a mes-
sage appears on the Control Display.
Fuel gauge
Fuel tank capacity: approx. 15.9 US gallons/
60 liters.
You can find information on refueling on
page210.
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, a message briefly appears on the Control
Display and the cruising range for the remaining
amount of fuel is displayed on the computer.
Under a cruising range of approx. 30 miles/
50 km, the message remains in the Control Dis-
play.
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.<
Computer
Displays in the instrument cluster
Calling up information
Press the button in the turn indicator 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 Units of measure on page78.
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.

Controls
79Reference
At a glance
Driving tips
Communications
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Mobility
6.Select the desired menu item and press the
controller.
7.Select the desired measurement unit and
press the controller.
The setting is stored for the remote control
currently in use.
Service requirements
The remaining driving distance and the date of
the next scheduled service 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 BMW 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 page59.
2.Push button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa-
nied by the words "SERVICE-INFO".
3.Press button 2.
4.Use button 1 to scroll through the individual
service items.
Possible displays
1Button for selecting functions2Service requirements

Controls
81Reference
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Mobility
until "Service requirements" is selected and
press the controller.
6.Select "Status" and press the controller.
7.Select "State inspection" and press the
controller.
8.Select "Set service date" and press the
controller. The month is highlighted.
9.Turn the controller to make the adjustment.
10.Press the controller to apply the setting.
The year is highlighted.
11.Turn the controller to make the adjustment.
12.Press the controller to apply the setting.
The date entry is stored.
To exit from the menu:
Select and press the controller.
More information on the BMW Maintenance
System can be found on page229.
Clock
The settings are stored for the remote control
currently in use, refer also to Personal Profile on
page28.
Setting the time
In the instrument cluster
To set the 12h/24h mode, refer to Setting the
12h/24h format below.
1.Push button 1 in the turn indicator lever up
or down repeatedly until the appropriate
symbol appears in the display, accompa-
nied by the time and the word "SET".
2.Press button 2.
3.Use button 1 to set the hours.
4.Press button 2 to confirm the entry.
5.Use button 1 to set the minutes.
6.Press button 2 to confirm the entry.
7.Press button 2.
The system accepts the new time.
Via iDrive
iDrive, for operating principle refer to page16.
1.Press the button once or twice until
the start menu appears.
2.Press the controller to open the menu.