84n
DSC Hill Descent Control (HDC)
As a result of the traction interven-
tion, the brakes may be subjected
to additional loads when the system is
deactivated. For this reason, it is possi-
ble that the braking intervention will be
disabled automatically for a brief period
in order to limit brake temperature.
To maintain vehicle stability, always
drive with the system switched on when
possible.<
To reactivate the systemPress the button again; the indicator
lamp goes out.
The laws of physics cannot be re-
pealed, even with DSC. An appro-
priate driving style always remains the
responsibility of the driver. We there-
fore urge you to avoid using the addi-
tional safety margin of the system as an
excuse for taking risks.<
For additional details concerning DSC,
please refer to the chapter describing
"Advanced technology" on page 177.
The concept HDC is a system for driving downhill on
steep roads. This system reduces
vehicle speed on steep downgrades,
thus allowing you to maintain control of
your BMW under these conditions.
The vehicle moves at slightly more than
walking speed without active interven-
tion from the driver.
You can activate HDC below approx.
20 mph (35 km/h). When driving down
steep roads, the vehicle reduces speed
automatically down to slightly more
than walking speed (approx. 5 mph/
8 km/h) and then maintains this speed
at a constant.
By applications of the brakes or accel-
erator, you can alter this speed in the
range of approx. 3 mph (5 km/h) to ap-
prox. 20 mph (35 km/h).
HDC is deactivated automatically if you
exceed approx. 35 mph (60 km/h).
To activate the system
Press the button. The
green indicator lamp illumi-
nates.
The indicator lamp flashes when the
brakes are applied automatically.
To deactivate the system Press the button again; the indicator
lamp goes out.
HDC is deactivated automatically above
a road speed of approx. 35 mph
(60 km/h) and when the ignition is
switched off. 530us141
92n
Automatic climate control Tips for pleasant driving Use the automatic system (that is press
AUTO button 6). Select an interior tem-
perature that is comfortable for you Ñ
we recommend 72 7 (22 6). When
the outside temperature is above 41 7
(5 6), you can also use the air condi-
tioner 12. This will dry the air as well as
preventing condensation on the win-
dow surfaces Ñ if there are passengers
with damp clothing, for example. Set
the air outlets 2 so that the air flows
past you and is not directed straight at
you. Set the rotary dial between the
outlets 2 for the upper body to a central
position so that cooler air will help to
prevent fatigue during the journey.
Detailed setting options are described
for you in the following section.
Your vehicle is set in such a man-
ner that, when you unlock the ve-
hicle via remote control with your per-
sonalized key, your own setting for the
automatic climate control is initiated.<
Automatic air distribution
The AUTO program as-
sumes the adjustment of
the air distribution and the air supply for
you and also adapts the temperature to
external influences (summer, winter) to
meet preferences you can specify. This
program maintains a comfortable in-car
climate regardless of the season. Select
an interior temperature that is comfort-
able for you Ñ we recommend 72 7
(22 6).
The selected temperature and AUTO
for the air flow appear in the display 9.
Refer to the overview on page 90. Open
the ventilation outlets for the upper
body. Switch on the air conditioner 12
in warm weather. The maximum cooling
capacity is achieved when you set ro-
tary dial 3 (refer to page 94) to cold.
Individual air distribution
You can cancel the AUTO
program by selecting spe-
cific air distribution patterns
for your personal comfort.
You can direct air to flow
onto the windows , toward the upper
body , and into the footwell .
Temperature
You can make individual
temperature adjustments on
the driver's side or the front
passenger side. Your settings will be
shown in the display 9. The displayed
temperatures are reference values for
the interior temperature. We recom-
mend 72 7 (22 6) as a comfortable
setting, whether the air conditioner is
operating or not. When you start the
vehicle, this system ensures that the
selected temperature is achieved as
quickly as possible. It then maintains
this temperature, regardless of the
season.
Set the rotary dial 3 (refer to "Draft-free
ventilation" on page 94) to a medium
position to provide somewhat cooler
air. This helps to promote driving with-
out fatigue. Utilize this method of mix-
ing air especially for making minor
adjustments for personal comfort.
You can set uncontrolled heater
output up to 90 7 (32 6). Full
cooling output is available from the air
conditioner down to 60 7 (16 6).<
IndexDataTechnologyRepairsCar careControlsOverview
99n
BMW Universal TransmitterProgramming 1 Channel keys
2 Indicator lamp
3 Receiver for programming
Read and comply with the safety
precautions on the previous
page.<
1 Turn the ignition key to position 2.
2 For initial use: press and hold both
outside keys 1 until the indicator
lamp 2 flashes, and then release
them. The three channel keys are
cleared.530us136
3 Hold the original hand-held transmit-
ter toward the receiver 3 a maximum
of 2 inches (5 cm) away.
4 Press the transmission key of the
original hand-held transmitter
(arrow 2) and the desired channel key
of the Integrated Universal Remote
Control (arrow 1) simultaneously. Re-
lease both keys as soon as the indi-
cator lamp flashes rapidly.
5 To program other original hand-held
transmitters, repeat steps 3 and 4.
The corresponding channel key is now
programmed with the signal of the orig-
inal hand-held transmitter. 530us137
Programming a hand-held
transmitter with conversion code
Read and comply with the safety
precautions on previous page.<
When programming the BMW Universal
Transmitter, consult the instructions for
the specific device. For using the BMW
Universal Transmitter with a conver-
sion-code system, note the following
supplemental programming instruc-
tions:
A second person facilitates
programming of the BMW
Universal Transmitter.<
1 Program the BMW Universal
Transmitter as described previously
under "Programming."
2 Press and hold the programming key
on the receiver of the device for ap-
proximately two seconds until the
programming lamp on the device
comes on.
3 Press the desired channel key of the
BMW Universal Transmitter three
times.
If you have additional questions,
please consult your BMW cen-
ter.<
IndexDataTechnologyRepairsCar careControlsOverview
113n
Roof-mounted luggage rack
*
Roof-mounted luggage racks raise the
center of gravity of the vehicle when
they are loaded. For this reason, they
exercise a major effect on the vehicle's
handling and steering response.
You should therefore always remember
not to exceed the approved roof
weight, the approved gross vehicle
weight or the axle weights when load-
ing the rack. You will find the specifica-
tions under "Technical Data" on
page 186.
Make sure that the load is not too
heavy, and attempt to distribute it
evenly. Always load the heaviest pieces
first (on the bottom). Be sure that ade-
quate clearance is maintained for rais-
ing the sliding/tilt sunroof, and that ob-
jects do not project into the opening
path of the liftgate. Secure the roof luggage correctly and
securely to prevent it from shifting or
being lost during driving (danger to
following traffic).
Drive smoothly. Avoid sudden accelera-
tion and braking maneuvers. Take cor-
ners gently.
The roof load increases the aerody-
namic resistance. Increased fuel con-
sumption is the immediate results.
IndexDataTechnologyRepairsCar careControlsOverview
119n
Catalytic converter Antilock Brake System (ABS)
Be sure to comply with the in-
structions above to prevent un-
burned fuel from reaching the catalytic
converter. Otherwise, the catalytic con-
verter could respond by overheating,
leading to serious damage.
Extreme temperatures occur at the cat-
alytic converter on this and every cata-
lyst-equipped vehicle. Heat shields are
installed adjacent to some sections of
the exhaust system. Never remove
these shields; do not apply undercoat-
ing to their surfaces. When driving,
standing at idle, and parking the vehi-
cle, take care to avoid contact between
the exhaust system and flammable ma-
terials (grass, hay, leaves, etc.). Such
contact could lead to a fire, resulting in
serious personal injury and property
damage.<
The concept ABS enhances active safety by helping
to prevent the wheels from locking un-
der braking. This is because: locked
wheels are dangerous. When the front
wheels slide, the driver loses steering
control over the vehicle. Traction loss at
the rear wheels can cause the rear end
to break into an uncontrolled skid.
With ABS, you will achieve the shortest-
possible braking distances under all
given conditions (braking while driving
straight ahead or in curves, different
road surfaces).
ABS is designed to meet two essential
requirements during every brake appli-
cation:
>To help provide vehicle stability.
>To help retain steering and maneu-
vering capability on all types of road
surfaces (asphalt, cement, dirt, wet
surfaces, snow and ice).
Braking with ABS The system becomes operative once
the vehicle exceeds a speed of approx.
6 mph (10 km/h). The ABS is deactivated
whenever the vehicle's speed drops
back below approx. 4 mph
(6 km/h).
To shorten the braking distance Ñ espe-
cially on steep, poor road surfaces when
driving slowly straight ahead Ñ the sys-
tem allows one or both front wheels to
lock for a short time. Nevertheless, the
vehicle still retains steering response
since this "poor road logic" is deacti-
vated again automatically as you steer.
If you are in a situation that requires full
braking, you will exploit the full beneÞts
of the ABS system if you apply maxi-
mum brake pressure ("panic stop").
Since the vehicle maintains steering
responsiveness, you can avoid possible
obstacles with a minimum of steering
effort, despite the full brake application.
The ABS system's closed-loop control
circuit cycles in fractions of a second.
A pulsation at the brake pedal, together
with the sounds associated with the
hydraulic controls, tells you that the
brake system is within its maximum
limit range and reminds you that you
120n
Antilock Brake System (ABS) should adapt road speed to the road
conditions.
On road surfaces that have a loose sur-
face layer on a firm base with good
traction (on gravel, deep sand or snow,
for example), braking distances may be
longer than with locked wheels.This is
also true if snow chains are mounted.
However, ABS continues to provide en-
hanced vehicle stability and steering re-
sponse under these conditions. Information for your safety Not even ABS can suspend the laws of
physics. ABS alone cannot prevent
accidents when the brakes are applied
without an adequate safety distance
between vehicles, if the vehicle is
driven with excessive speed, or if aqua-
planing occurs. Responsibility for these
types of situations remains in the hands
(and at the feet) of the driver. You
should never allow the added safety of
ABS to lull you into a false sense of
security, or mislead you into taking
increased risks that could affect your
own safety and that of others.
Do not make any modifications to
the ABS system.
Service procedures on ABS are to be
performed by authorized technicians
only.<
Cornering Brake Control (CBC) CBC is an advanced engineering de-
sign of the ABS. When braking during
cornering with high lateral accelera-
tion, or when braking during a lane
change, vehicle stability is further im-
proved and the steering response is
enhanced. Electronic Brake Force Distribu-
tion (EBV) EBV governs brake application pres-
sure at the rear wheels to achieve sta-
ble brake response.
If the EBV fails (refer to the next
page), avoid full or "panic" brake
applications. Full or panic brake appli-
cations can result in overbraking at the
rear axle, and braking stability is no
longer ensured.<
Dynamic Brake Control (DBC)
If you apply the brakes rapidly, this sys-
tem automatically produces the maxi-
mum braking force boost and thus
helps to achieve the shortest possible
braking distance during "panic stops."
All of the benefits of the ABS system
are exploited under these circum-
stances.
Do not reduce the pressure on the
brake pedal for the duration of the
brake application. When the brake
pedal is released, the DBC is deacti-
vated.
In the event of a malfunction,
the yellow warning lamp comes
on. Have the system checked
and repaired at your BMW cen-
ter as soon as possible.
Refer to the "Information for your
safety" covering the ABS system.
This information also applies in general
for DBC.<
IndexDataTechnologyRepairsCar careControlsOverview
121n
Antilock Brake System (ABS) In the event of a fault
If the brake warning lamp
comes on red together with the
yellow indicator lamps for ABS
and DSC (refer to pages 22
and 24), ABS, CBC, DSC, DBC,
EBV and HDC have failed. You
may continue driving, but drive
defensively and with extra cau-
tion. Avoid full brake applications be-
cause the vehicle could become unsta-
ble and go out of control.
Have the system checked by the near-
est BMW center.
If all all three warning lamps come on
yellow:
ABS, CBC, DSC, DBC and HDC have
failed. The effect of the EBV Brake
Force Distribution at the rear wheels,
which achieves stable brake response,
is largely preserved. Optimum brake
force and braking stability are no longer
assured. Continue to drive; drive cau-
tiously and defensively and avoid full
brake applications.
Have the system checked by your
authorized BMW center as soon as
possible.
Following an interruption in bat-
tery power, the ABS, CBC, DSC,
DBC and HDC systems are no longer
available. After you drive for only a few
yards or meters or if you turn the steer-
ing wheel from stop to stop while the
vehicle is stationary and the engine is
running, the functions are activated
again and the three warning lamps will
go out.<
Warning lamps for Canadian
models.
122n
Disc brakes Disc brakes furnish optimum decelera-
tion and braking control and greater
fade resistance under heavy use.
When the vehicle is driven only occa-
sionally, during extended periods when
the vehicle is not used at all, and in op-
erating conditions where brake applica-
tions are less frequent, there is an in-
creased tendency for corrosion of the
rotors and accumulation of contamina-
tion on the brake pads. This occurs be-
cause the minimal pressure which must
be exerted by the pads to clean the ro-
tors by brake applications is not
reached.
If the brake rotors are corroded, they
will tend to respond to braking with a
pulsating effect which even extended
application will fail to cure.
For your own safety: use only
brake pads that BMW has re-
leased for your particular vehicle
model. BMW cannot evaluate non-ap-
proved brake pads to determine if they
are suited for use, and therefore cannot
ensure the operating safety of the vehi-
cle if they are installed.<
Driving notes When driving in wet conditions and in
heavy rain, it is advisable to apply light
pressure to the brake pedal every few
miles (kilometers). Watch traffic condi-
tions to ensure that this maneuver does
not endanger other road users. The
heat which is generated by the brake
applications helps to dry the brake
pads and rotors.
Maximum braking force is obtained
while the wheels continue to rotate,
peaking when the wheels remain on the
verge of locking without actually doing
so. ABS maintains this state automati-
cally. If the ABS fails, you should revert
to the staggered braking technique
(refer to page 124).
Extended or steep mountain descents
do not necessarily have to lead to re-
duced braking efficiency. Move the se-
lector lever to the appropriate lower
range in which only minimal periodic
brake applications are required.
You can increase the engine's braking
effect by selecting progressively lower
gears, downshifting as far as 1st gear,
on steep descents. If engine braking should prove to be in-
adequate, you should still avoid ex-
tended, continuous braking. Instead of
maintaining low to moderate pressure
over an extended period of time, you
should decelerate by applying more
substantial pressure to the brake pedal
(watch for following traffic), then releas-
ing the pedal, then repeating the appli-
cation. This staggered braking tech-
nique allows the brakes to cool in the
intervals between active braking
phases, preventing overheating and en-
suring that full braking capacity remains
available at all times.
Do not coast with the selector le-
ver in ÒNeutralÒ. Do not drive with
the engine shut off. The engine pro-
vides no braking effect when the trans-
mission is in ÒNeutralÒ, and there is no
power-assist for braking or steering
when the engine is not running.
Have brake inspections performed at
an authorized BMW center only. If you
do not, parts of the four-wheel drive
system could be damaged.
Never allow floor mats, carpets or any
other objects to protrude into the area
around the accelerator and brake ped-
als and obstruct their movement.<