2005 BMW 645CI COUPE&CONVERTIBLE warning lights

Adjustments
48
Adjusting tilt angle
Swivel the head restraints.
Entry to the rear
Before starting to drive, fold backrests
back, otherwise there is the danger of
accident due to an unexpected movement of
the seat.<
Coupe: releasing backrest
Pull the lever upward and fold the backrest for-
ward.
The lever is designed in such a way that the
safety belt can be stored there. This enables
you to fasten the safety belt more conveniently.
Convertible: releasing backrest
The belt system integrated into the seat
ensures easier entry into the rear.
1.Pull the lever 1 upward and fold the back-
rest forward.
2.Press and hold button 2 until the seat has
moved to the desired position.
3.After entry to the rear, fold back the back-
rest and lock it in place.
4.Press and hold button 3. The seat moves
back to its previous position. If you release
button 3 before this, the seat stops in its
current position.
You can lock the backrest in place when it
is folded forward. This is useful, for exam-
ple, when you get into the vehicle when it is
parked on a hill. Press the backrest until it audi-
bly locks into place. To fold it back, you do not
have to use lever 1 to release it.<
Lock backrest warning lamp:
Lights up when the backrest is not
locked. At the same time, an additional
message appears on the Control Display.
Safety belts
To ensure that the safety systems con-
tinue to provide optimized protection,
please observe the adjustment instructions on
page44.<
Before every drive, make sure that safety belts
are being worn at all of the occupied seats. Air-
bags complement the safety belt as an addi-
tional safety device, but they do not represent a
substitute.

Technology for comfort, convenience and safety
80
Technology for comfort, convenience and
safety
PDC Park Distance Control*
The concept
The PDC assists you when you are parking.
Audible signals and an optical display
* indicate
that you are approaching an object in front of or
behind your vehicle. To measure the distance,
there are four ultrasonic sensors in each
bumper. The sensors at the front and at the two
rear corners have a range of approx. 24 in/
60 cm; the rear middle sensors have approx.
5ft/1.50m.
PDC is a parking aid that can indicate
objects when they are approached
slowly, as is usually the case when parking.
Avoid approaching an object at high speed, as
otherwise the physical circumstances would
mean that the system warning was too late.<
Automatic mode
In ignition key position 2, the system automati-
cally assumes operational status after approx.
1 second each time you shift into reverse or
move the selector-lever to position R.
Wait this short period before driving. The sys-
tem switches off when you disengage the
reverse gear.
Manual mode
Press the button; the LED lights up.
Deactivating manual mode
Press the button again; the LED goes out.
The system is automatically deactivated once
the vehicle travels approx. 165 ft/50 m or
exceeds a speed of roughly 20 mph/30 km/h;
the LED goes out. You can reactivate the sys-
tem manually as needed.
Signal tones
An intermittent signal indicates the distance of
the vehicle from an object being approached.
Thus, an object detected to the left rear of the
vehicle will be indicated by a signal tone from
the left rear speaker, etc. As the distance
between vehicle and object decreases, the
intervals between the tones become shorter.
The signal tone becomes continuous once the
distance to the nearest object falls to below
roughly 1 ft/30 cm.
The warning signal is canceled after approx.
3 seconds if you are moving parallel to a wall.
Malfunction
The LED in the button flashes and a message
appears on the Control Display. PDC is mal-
functioning. Have the system checked.
As a preventive measure, keep the sensors
clean and free of ice or snow in order to ensure
that they will continue to operate effectively.
PDC with visual warning*
You also enjoy the option of having the system
show the approach to an object on the Control
Display. The Control Display also indicates the
presence of objects before they are close
enough to trigger a signal tone.
Control Center, for principle details, refer to
page16.

Controls
83Reference
At a glance
Driving tips
Communications
Navigation
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Mobility
To control
The indicator lamp flashes:
DSC or DTC controls the drive forces
and brake forces.
The indicator lamp comes on:
DSC and DTC are deactivated together via the
button DTC.
The indicator lamp comes on: DTC is
activated via the DTC button.
Malfunction in the driving-stability
control systems
The brake system warning lamp lights
up in red, appearing together with the
indicator lamps for ABS and DSC. A
message appears on the Control Dis-
play. The driving-stability control sys-
tems have failed. Conventional braking
efficiency remains available without
limitations.
While you may continue, you should remember
to proceed cautiously and drive defensively
while avoiding full brake applications.
Have the system checked as soon as possible.
Display of the previously described
malfunction on Canadian models.
The DSC indicator lamp lights up. A
message appears on the Control Dis-
play. A malfunction has occurred in
DSC and DTC.
The stability maintenance functions are no
longer available. The vehicle remains opera-
tional.
Have the system checked as soon as possible.
The warning lamp for the brake system
lights up in yellow. A message appears
on the Control Display. DBC has failed.
Have the system checked as soon as possible.Display of the previously described
malfunction on Canadian models.
Active roll stabilization*
The concept
Active roll stabilization minimizes body roll and
optimizes vehicle stability during cornering and
evasive maneuvers.
Dynamic stabilizers at the front and rear axles
form the basis for active roll stabilization. Sus-
pension compliance adapts to suit driving con-
ditions, varying from performance-oriented
during cornering to smooth and comfort-ori-
ented when the vehicle is proceeding in a
straight line. During vehicle operation, the sys-
tem continuously runs through closed-loop
control cycles lasting only fractions of a second.
The system assumes operational status each
time you start the engine.
Malfunction
The warning lamp lights up and a mes-
sage appears on the Control Display.
There is a malfunction in the system.
Have the system checked as soon as possible.
If there is a malfunction in the system,
please remember to adapt your speed
accordingly, especially in curves.
The suspension will be noticeably softer and
the vehicle will display a greater tendency to tilt
during cornering and in crosswinds.
If a message stating that you should stop
appears on the Control Display, stop and switch
off the engine as soon as possible. In this case
the oil level in the reservoir may have dropped
below the minimum, possibly owing to a leak in
the hydraulic system. Do not continue driving.
Contact your BMW center.<

Controls
85Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Report of a flat tire
The warning lamp lights up in red. A
message appears on the Control Dis-
play. In addition, an acoustic signal
sounds. There is a flat tire or extensive inflation
pressure loss.
1.Cautiously reduce the vehicle speed to
below 50 mph/80 km/h. Avoid sudden brak-
ing and steering maneuvers. Do not exceed
a vehicle speed of 50 mph/80 km/h.
If the vehicle is not, as provided at the
factory, equipped with run-flat tires,
refer to page172, stop driving. Continued
driving after a flat tire can result in serious
accidents.<
2.Check the air pressure in all four tires at the
next opportunity.
If the tire inflation pressure in all four
tires is correct, the Flat Tire Monitor
may not have been initialized. The system
must then be initialized.<
3.In case of a complete loss of the tire inflation
pressure or obvious tire damage, you can
estimate the possible driving distance for
continued driving base on the following ref-
erence values:
>With low load:
1 to 2 persons without luggage:
approx. 155 miles/250 km.
>With medium load:
2 persons, luggage compartment full, or
4 persons without luggage:
approx. 94 miles/150 km.
>With full load:
4 persons, luggage compartment full:
approx. 30 miles/50 km.
Drive reservedly and do not exceed
a speed of 50 mph/80 km/h. In the
event of pressure loss, vehicle handling
changes. This includes reduced tracking
stability in braking, extended braking dis-
tance and altered natural steering charac-
teristics.
If unusual vibrations occur while the vehicle
is being driven, this can indicate final failure
of the damaged tire. Reduce speed and stop as soon as possible. Do not continue
driving. Contact your BMW center.<
Malfunction
The warning lamp lights up in yellow. A
message appears on the Control Dis-
play. The Flat Tire Monitor has a mal-
function or has failed. Have the system checked
as soon as possible.
Active steering*
The concept
The active steering is a system that actively var-
ies the steering angle of the front wheels in rela-
tion to the steering wheel movements.
A t l o w s p e e d , e . g . i n a t o w n o r w h e n p a r k i n g , t h e
steering angle of the wheels is reinforced, i.e.
the steering becomes very direct.
In the higher speed range, on the other hand,
the steering angle is reduced more and more.
This improves the handling capability of your
BMW over the entire speed range.
In critical situations, the system can make tar-
geted corrections to the steering angle pro-
vided by the driver and thus stabilize the vehicle
before the driver intervenes. This stability-pro-
moting intervention is deactivated when DSC is
switched off, refer to page82.
Malfunction
The warning lamp lights up. The active
steering is no longer operational. At low
speed, larger steering wheel move-
ments are required, while the vehicle reacts
more sensitively to steering wheel movements
in the higher road-speed range. Have the sys-
tem checked.
If the warning lamp lights up during the first
engine starting following a power supply inter-
ruption, the system must be activated by being
initialized.

Controls
87Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Do not apply adhesive materials to the
cover panels of the airbags, cover them or
modify them in any other way.
Do not attempt to remove the airbag retention
system from the vehicle. Never modify or
tamper with either the wiring or the individual
components in the airbag system. This cate-
gory includes the upholstery in the center of the
steering wheel, on the instrument panel, the
side trim panels on the doors and on the Coupe,
the roof pillars along with the sides of the head-
liner. Do not attempt to remove or dismantle the
steering wheel.
Do not touch the individual components
directly after the system has been triggered,
because there is a danger of burns.
If you note any indication of system malfunc-
tion, if you wish to have an airbag deactivated,
or if the airbag retention system is triggered in
response to an accident, you should always
entrust all inspection, repair and dismantling
operations to your BMW center. Unprofessional
attempts to service the system could lead to
failure in an emergency or undesired airbag
activation, either of which could result in per-
sonal injury.<
Airbag warning information is also provided on
the sun visors.
Operational readiness of airbag system
From ignition key position 1 the warning lamp
lights up briefly, indicating the operational
readiness of the entire airbag system and the
belt tensioners.
Airbag system malfunction
>The warning lamp does not light up as of
ignition key position 1.>The warning lamp lights up continuously.
Have the airbag system checked immedi-
ately if a malfunction occurs, as otherwise
there is a danger of the system not responding
in the expected manner to an impact occurring
within its normal response range.<
Convertible:
Rollover protection system
The rollover protection system is automatically
activated in the event of an accident or a critical
driving situation, extreme inclination on the lon-
gitudinal or transverse axis, or loss of ground
contact. The rollover bars located behind the
rear head restraints are deployed within frac-
tions of a second.
As a supplement to the rollover bar integrated
into the windshield frame, the rollover protec-
tion system ensures that all vehicle occupants
have the necessary headroom.
Always keep the path of movement of the
rollover protection system clear.
In less severe accidents, you are protected by
the fastened safety belt and, depending on the
severity of the accident, the belt tensioner and
the multistage airbag restraint system.<
Lowering
If the protection function was not required after
automatic activation, the rollover protection
system can be lowered again. No tools are nec-
essary for this purpose.
1.Press the release backward and hold in that
position.

Controls
91Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
Lamps
Parking lamps/low beams
0Lights off
1Parking lamps
2Low beams/daytime driving lamps
*
3Automatic headlamp control/
Adaptive Head Light
*
Parking lamps
In the switch position1, the front, rear and side
vehicle lighting is switched on. You can use the
parking lamps for parking. For lighting on one
side for parking as an additional feature, refer to
page92.
Low beams
The low beams light up in switch position2 only
with the engine running. Otherwise the parking
lamps are lit.
Pathway lighting
After parking the vehicle and switching off the
headlamps, operating the headlamp flasher
activates the low beams. You can set the dura-
tion on the Control Display or deactivate the
function.
Control Center, for principle details, refer to
page16.
1.Open the menu.
2.Select "Vehicle settings" and press the
controller.3.Select "Light" and press the controller.
4.Select "Pathway lighting" and press the
controller.
5.Turn the controller to select the corre-
sponding duration.
6.Press the controller to apply the setting.
Lights on warning
If you turn the ignition key to position 0, an
acoustic signal sounds when you open the
driver's door for a few seconds to remind you
that the lamps have not yet been switched off.
At the same time a message appears on the
Control Display.
Daytime driving lamps*
If you wish, you can leave the light switch in
position2.
Always observe all applicable laws governing
the use of daytime driving lamps.
You can switch on the parking lamps when
needed using the standard procedure
described under Parking lamps.
Automatic headlamp control
In switch position3 the low beams are automat-
ically switched on or off depending on the ambi-
ent light, e.g. in a tunnel, at dawn/dusk in the
rain or snow, and the Adaptive Head Light
* is
active. The LED next to the symbol is illumi-
nated when the low beams are on.

Mobility
177Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
2.Turn the cap of the expansion tank counter-
clockwise to allow any accumulated pres-
sure to escape, then continue turning to
open.
3.The coolant level is correct when it lies
between the Min and Max mark, also refer to
the drawing next the filler neck.
4.If the coolant is low, slowly add coolant up to
the specified level – do not overfill.
5.Turn the cap until it clicks.
6.Have the reason for the coolant loss elimi-
nated as soon as possible.
Brake system
Malfunction
Brake fluid
The warning lamp lights up in red
in spite of the handbrake being
released; a message appears on the
Control Display.
Stop the vehicle immediately.
The brake fluid in the reservoir has fallen to
below the minimum level. At the same time, a
significantly longer brake pedal path may be
noticeable. Have the system checked immedi-
ately by a BMW center.
Warning lamp for Canadian models.
When you continue driving, an increased
brake pedal path can be necessary, and
significantly longer braking distances might be
required. Please adapt your driving style
accordingly.<
Brake pads
The warning lamp lights up in red
in spite of the handbrake being
released; a message appears on the
Control Display. The brake pads have reached
their minimum pad thickness. Have the brake
pads replaced as soon as possible.Warning lamp for Canadian models.
For your own safety: use only brake pads
that BMW has approved for your particu-
lar vehicle model. As BMW cannot assess the
suitability of other brake pads for use on your
vehicle, BMW is unable to assume continued
responsibility for the vehicle's operating safety
if non-approved pads are installed.<

Everything from A to Z
206 Inflation pressure, refer to Tire
inflation pressure168
Inflation pressure monitoring,
refer to Flat Tire Monitor84
Information
– on another location118
– on current position118
– on destination location118
"Information" for
navigation118
"Information on
destination"119
Initializing, refer to Power
failure184
"Input map"118
Inside rearview mirror,
automatically dimming, refer
to Automatic functions50
Installation location
– CD changer145
– navigation drive114
Instructions for navigation
system, refer to Voice
instructions126
Instrument cluster12
Instrument illumination, refer
to Instrument lighting93
Instrument lighting93
Instrument panel, refer to
Instrument cluster12
Integrated universal remote
control100
Interesting destination118
"Interim time"77
Interior lamps93
– remote control30
Interlock, refer to Steering
locked54
Interlock on automatic
transmission54
Intermittent mode of the
wipers60
J
Jacking points183
Joystick, refer to Control
Center16
Jumpering, refer to Jump
starting186
Jumping, refer to Jump
starting186
Jump starting186
K
Key Memory28
"Keypad"155
Keys28
Kick-down
– automatic transmission with
Steptronic58
– SMG Sequential manual
transmission57
Knock control167
L
Lamps, refer to Parking lamps/
low beams91
Lamps and bulbs180
"Languages"78
"Languages" for
navigation126
Lashing eyes, refer to
Securing load111
Last destinations, refer to
Destination list119
"Last seat pos."46
LATCH child-restraint fixing
system53
LEDs Light-emitting
diodes183
Length, refer to
Dimensions193
Letter symbol with portable
phone155
License plate lamps, replacing
bulbs182
"Light"60,91
Light-emitting diodes
LEDs183Lighter103
Lighter socket103
Lighting
– instruments93
– of the vehicle, refer to
Lamps91
Lights on warning91
Light switch91
"Limit"76
"Lock after driving"32
Lock buttons in the doors,
refer to Locking32
Locking
– from inside32
– from outside30
Locking and unlocking doors
– from inside31
– from outside29
"LOGIC7", refer to Tone
control134
Low beams91
– automatic91
– replacing bulbs180
Lower back support, refer to
Lumbar support45
Luggage compartment
– capacity192
– emergency release33
– hotel function32
– increasing capacity,
Convertible34
– opening/closing, refer to
Luggage compartment
lid33
– opening from inside33
– opening from outside33
– opening with remote
control30
Luggage compartment lid32
– emergency operation33
– emergency release33
– opening from inside33
– opening from outside33
– opening with remote
control30
– unlocking manually33
Lumbar support45
LW, waveband136