steering BMW 335I 2009 User Guide

Technology for driving comfort and safety
82
reduced driving stability. It is therefore neces-
sary to drive with appropriate caution.
You may find it useful
to briefly activate DTC
under the following sp ecial circumstances:
> When driving uphill on snow-covered roads,
in slush or on unplowed, snow-covered
roads
> When rocking a stuck vehicle free or start-
ing off in deep snow or on loose ground
> When driving with snow chains
Activating DTC
Press the button; the indicator lamps for DTC in
the instrument cluster come on.
For better control
If the indicator lamp flashes:
DTC controls the drive forces and
brake forces.
If the indicator lamps are on:
DTC has been activated.
Deactivating DTC
Press the button again; the DTC indicator
lamps in the instrument cluster go out.
xDrive*
xDrive is your BMW's four-wheel-drive system.
The combined efforts of xDrive and DSC help to
further optimize traction and driving dynamics.
The xDrive four-wheel-drive system distributes
driving power variably to the front and rear axles
depending on the driving situation and road
conditions.
Hill Descent Control HDC*
HDC is a downhill driving assistant that controls
your speed on steep downhill gradients and
makes it even easier to control your BMW's
handling under these conditions. The vehicle
then moves slightly faster than double walking
speed without the driver needing to intervene.
HDC can be activated as long as you are driving
under approx. 20 mph or 35 km/h. When driving
downhill at a speed of under approx. 20 mph or
35 km/h, the vehicle's speed is automatically
reduced to slightly more than double walking
speed and maintained.
Increasing or decreasing speed
By accelerating or brak ing you can change this
speed within a range from approx. 3 to 15 mph,
approx. 5 to 25 km/h.
You can specify a target speed within the same
range using the cruise control
* lever on the
steering column.
1 To increase speed
2 To decrease speed
Activating HDC
Press the button; the LED lights up.
When the vehicle is being braked automatically,
the LED flashes.
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Technology for driving comfort and safety
84
iDrive, for operating pr
inciple refer to page16.
1. "Vehicle Info"
2. "Vehicle status"
3. "Reset"
4. Start the engine - do not drive away.
5. Start the initialization using "Reset".
6. Start to drive.
The initialization is comp leted during the trip.
"Status: Flat Tire Monitor active" is displayed
again on the Control Display.
Indication of a flat tire
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, an
acoustic signal sounds. There is a flat
tire or substantial lo ss of tire pressure.
1. Cautiously reduce sp eed to below 50 mph
or 80 km/h. Avoid sudden braking and
steering maneuvers. Do not exceed a speed
of 50 mph or 80 km/h.
If the car is not equipped with Run-
Flat Tires, refer to page 209, the stan-
dard equipment by design, do not continue
driving. Otherwise a se vere accident could
result if you continue driving. <
2. At the next opportunity, check the air pres-
sure in all four tires.
If all four tires are inflated to the cor-
rect pressures, the Flat Tire Monitor
might not have been initialized. The system
must then be initialized. <
3. In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible distance for continued driving on the basis
of the following guidelines:
>
With a light load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
> With a medium load:
2 persons, cargo bay full, or 4 persons
without luggage:
approx. 90 miles/150 km
> With a full load:
4 or more persons, cargo bay full:
approx. 30 miles/50 km
Drive cautiously an d do not exceed a
speed of 50 mph or 80 km/h, otherwise
there is a risk of an accident. In the event of
pressure loss, vehicle handling changes. This
includes reduced tracking stability in braking,
extended braking distan ce and altered natural
steering characteristics.
If unusual vibration or lo ud noises occur during
the journey, this may be an indication that the
damaged tire has finally failed. Reduce your
speed and pull over as soon as possible at a
suitable location. Otherw ise parts of the tire
could come loose, resulting in an accident. Do
not continue driving. Instead, contact your
BMW center. <
Malfunction
The warning lamps come on in yel-
low. A message appears on the Con-
trol Display. The Flat Tire Monitor has
a malfunction or has failed. Have the
system checked as soon as possible.
Tire Pressure Monitor TPM*
The concept
TPM checks the inflation pressures of the four
mounted tires. The system notifies you if there
is a significant loss of pressure in one or more
tires.
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Technology for driving comfort and safety
86
If a flat tire is detect
ed while the system is
resetting and determining the inflation
pressures, all tires on the Control Display are
displayed in yellow. The message "Tire low!" is
shown. <
Message for low tire inflation pressure
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, a signal
sounds. There is a flat tire or substan-
tial loss of tire pressure.
1. Cautiously reduce sp eed to below 50 mph/
80 km/h. Avoid sudden braking and steer-
ing maneuvers. Do not exceed a speed of
50 mph/80 km/h.
If the car is not equipped with Run-
Flat Tires, refer to page 209, the stan-
dard equipment by design, do not continue
driving. Otherwise a se vere accident could
result after a tire punc ture if you continue
driving. <
2. In the event of complete pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guidelines:
>With a light load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
> With a medium load:
2 persons, cargo bay full, or 4 persons
without luggage:
approx. 95 miles/150 km
> With a full load:
4 or more persons, cargo bay full:
approx. 30 miles/50 km
Drive cautiously 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 distance and altered natural
steering characteristics.
If unusual vibration or lo ud noises occur during
the journey, this may be an indication that the
damaged tire has finally failed. Reduce your
speed and pull over as soon as possible at a
suitable location. Otherw ise parts of the tire could come loose, resulting in an accident. Do
not continue driving. Instead, contact your
BMW center.
<
Malfunction
The small warning lamp flashes in
yellow and then lights up continu-
ously; the larger warning lamp comes
on in yellow. On the Control Display,
the tires are shown in gray and a message
appears. No punctures can be detected.
his type of message is shown in the following
situations:
> If there is a malfunction
Have the system checked.
> If a wheel without TPM electronics has
been mounted
> If TPM is temporarily malfunctioning due to
other systems or devices using the same
radio frequency.
Message for unsuccessful system
reset
The warning lamp lights up yellow. A
message will appear on the Control
Display. The system is not reset after
a tire has been changed, for example.
Check the tire inflation pressure and reset the
system, refer to page 85.
Declaration according to NHTSA/
FMVSS 138
Tire Pressure Monitoring Systems
Each tire should be checked monthly when cold
and inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or tire infl ation pressure label. If
your vehicle has tires of a different size than the
size indicated on the vehicle placard or tire infla-
tion pressure label, yo u should determine the
proper tire inflation pressure for those tires. As
an added safety feature, your vehicle has been
equipped with a tire pressure monitoring sys-
tem, TPMS, that illuminates a low tire pressure
telltale when one or more of your tires are signif-
icantly under-inflated. Accordingly, when the
low tire pressure telltale illuminates, you should
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Controls
87Reference
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Mobility
stop and check your tires as soon as possible,
and inflate them to the proper pressure. Driving
on a significantly underinflated tire causes the
tire to overheat and can lead to tire failure.
Underinflation also redu ces fuel efficiency and
tire tread life, and may affect the vehicle’s han-
dling and stopping ability. Please note that the
TPMS is not a substitute for proper tire mainte-
nance, and it is the driver’s responsibility to
maintain correct tire pressure, even if underin-
flation has not reached the level at which the
TPMS low tire pressure telltale illuminates.
The TPMS malfunction indicator is combined
with the low tire pressure telltale. When the sys-
tem detects a malfunction, the telltale will flash
for approximately one minute and then remain
continuously lit. This sequence will continue
upon subsequent vehicle startups as long as
the malfunction exists. When the malfunction
indicator is illuminated, the system may not be
able to detect or signal low tire pressure as
intended. TPMS malfunctions may occur for a
variety of reasons, including the installation of
replacement or alternate tires or wheels on the
vehicle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow
the TPMS to continue to function properly.
Active steering*
The concept
Active steering varies the turning angle of the
front wheels in relation to steering wheel move-
ments. It also varies the steering force required
to turn the wheels depending on the speed at
which you are driving.
When you are driving in the low road-speed
range, e.g. in a town or when parking, the steer-
ing angle increases, i.e. the steering becomes
very direct, and less effort is required to turn the
wheels. 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 inte rvenes. This stabilizing
intervention is simult aneously deactivated
when DSC is switched off, refer to page 81.
Malfunction
The warning lamps come on. Active
steering is no longer operational. At
low speeds, greater steering wheel
movements are required, whereas at
higher speeds the vehicle reacts more sensi-
tively to steering wheel movements. The stabil-
ity-enhancing feature may also be deactivated.
Drive cautiously and thin k well ahead. Have the
system checked.
Brake force display
On the left: normal braking
On the right: sharp braking.
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Technology for driving comfort and safety
88
Airbags
The following airbags are located under the
marked covers:
1Front airbags
2 Head airbags
3 Side airbags in the seat backrests
Protective action
Observe the adjustment instructions on
page 41 to ensure the best possible per-
sonal protection. <
The front airbags help protect the driver and
front passenger by re sponding to frontal
impacts in which safety belts alone cannot pro-
vide adequate restrain t. When needed, the
head and side airbags help provide protection in
the event of side impact. The relevant side air-
bag supports the side upper body area. The
head air bag supports the head.
The airbags have been designed to not be trig-
gered in every collision situation, e.g. not in
minor accidents or rear-end collisions.
Do not apply adhesive materials to the
cover panels of the airbags, cover them or
modify them in any other way.
Keep the dashboard and windows on the front
passenger side clear, i.e. do not cover with
adhesive labels or coveri ngs, and do not attach
holders such as for navigation instruments or
mobile phones.
Do not attach seat cove rs, cushions or other
objects not specifically approved for seats with
integral side airbags to the front seats. Do not
hang items of clothing such as coats or jackets
over the backrests. Do not attempt to remove the airbag retention system from the vehicle. Do
not modify the individual components of the
system or its wiring in any way. This includes
the upholstered covers
on the steering wheel,
instrument panel, seats and roof posts, as well
as the sides of the roof lining. Do not attempt to
remove or dismantle the steering wheel.
Do not touch the individual components imme-
diately after the system has been triggered,
because there is a danger of burns.
In the event of malfunctions, deactivation or
triggering of the airbag restraint system, have
the testing, repair, removal and disposal of air-
bag generators executed only by a BMW center
or a workshop that works according to repair
procedures of BMW with correspondingly
trained personnel and that has the required
explosives licenses. Unprofessional attempts to
work on the system could lead to failure in an
emergency or to undesi red airbag activation,
either of which could resu lt in personal injury.<
Warning notices and information about the air-
bags can also be found on the sun visors.
Automatic deactivation of the front
passenger airbags
An analysis of the impr ession in the front pas-
senger seat cushion determines whether and
how the seat is occupied. The front and side air-
bags for the front passenger are activated or
deactivated by the system accordingly.
The indicator lamp above the interior
rearview mirror shows the current status
of the front passenger ai rbags, deactivated or
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3."Welcome light"
Welcome lamps are activated and are
stored for the remote control currently in use.
Pathway lighting
If you activate the head lamp flasher after park-
ing the car, with the lights switched off, the low
beams come on and remain on for a certain
time.
Setting or deactivating the duration
iDrive, for operating principle refer to page 16.
1. "Settings"
2. "Lighting"
3. "Pathway lighting:"
4. Set or deactivate the duration.
The setting is stored for the remote control cur-
rently in use.
Daytime running lamps
The daytime running lamps light up in switch
positions 0, 1 and 3 .
Activating/deactivating daytime
running lamps
iDrive, for operating principle refer to page 16.1.
"Settings"
2. "Lighting"
3. "Daytime running lamps"
Daytime running lamps are activated and
are stored for the remote control currently in
use.
Adaptive Head Light*
The concept
Adaptive Head Light is a variable headlamp
control system that en ables better illumination
of the road surface. Depending on the steering
angle and other parameters, the light from the
headlamp follows the course of the road.
Activating Adapti ve Head Light
With the ignition switched on, turn the light
switch to position 3, refer to page 90.
To avoid dazzling the drivers of oncoming vehi-
cles, Adaptive Head Light is not active when the
car is driven in reverse, and directs the light to
the front passenger's side when the vehicle is at
a standstill.
Malfunction
The LED next to the symb ol for automatic head-
lamp control flashes. Adaptive Head Light is
malfunctioning or has failed. Have the system
checked as soon as possible.
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Controls
101Reference
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Digital compass*
1Adjustment button
2 Display
The display shows you the main or secondary
compass direction in which you are driving.
Operating principle
You can call up various functions by pressing
the adjustment button wi th a pointed object such as a pen or similar item. The following
adjustment options are displayed one after the
other, depending on how long you keep the
adjustment button pressed:
>
Press briefly: switch display on/off
> 3 to 6 seconds: set the compass zone
> 6 to 9 seconds: calibrate the compass
> 9 to 12 seconds: set left-hand/right-hand
steering
> 12 to 15 seconds: set the language
Setting compass zones
Set the compass zone co rresponding to your
vehicle's geographic loca tion so that the com-
pass can function correctly; refer to the world
map with compass zones.
To set the compass zone , press the adjustment
button for approx. 3-4 seconds. The number of
the compass zone set is shown in the display.
To change the zone setting, briefly press the
adjustment button repeatedly until the display
shows the number of the compass zone corre-
sponding to your current location. The compass is operational again after approx.
10 seconds.
Calibrating the digital compass
The digital compass must
be calibrated in the
following situations:
> An incorrect compass direction is shown.
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Practical interior accessories
102
>
The compass direction shown does not
change although the direction of travel
does.
> Not all compass directions are shown.
Procedure
1.Make sure that no large metal objects or
overhead power lines are in the vicinity of
your vehicle and that you have enough
space to drive in a circle.
2. Set the currently valid compass zone.
3. Press the adjustment button for approx.
6-7 seconds to call up C. Then drive in at
least one full circle at a speed of no more
than 4mph or 7km/h.
If calibration is successful, the display
changes from C to a compass direction.
Setting right-hand/left-hand steering
Your digital compass is factory-set to right-
hand or left-hand steering, in accordance with
your vehicle.
Setting the language
You can set the langua ge of the display:
Press the adjustment button for approx.
12-13 seconds. Briefly press the adjustment
button again to switch between English, "E",
and German, "O".
The setting is automatically saved after approx.
10 seconds.
Roller sun blinds*
Rear window blind
Tap the button in the cent er console to raise or
lower the roller sun blind.
Roller sun blinds for rear side windows
Pull loop of roller sun blind and hook onto
bracket.
Do not open the window when the roller
sun blind has been pulled up, otherwise
there is a risk of damage at high speeds that
may result in pe rsonal injury.<
Glove compartment
Opening
Pull the handle.
The light in the glove compartment comes on.
To prevent injury in the event of an acci-
dent while the vehicle is being driven,
close the glove compartment immediately after
use. <
Closing
Fold cover up.
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Locking
To lock the glove compartment, use the inte-
grated key of the remote control, refer to
page26.
USB interface for data transmission
Port for importing and exporting data on USB
devices, e.g. music collections, refer to
page 160.
Observe the following when connecting:
> Do not use force when plugging the con-
nector into the USB audio interface.
> Do not connect devices such as fans or
lamps to the USB audio interface.
> Do not connect USB hard disks.
> Do not use the USB interface to recharge
external devices.
Center armrest
Storage compartment
The center armrest between the front seats
contains either a compar tment or the cover for
the snap-in adapter
*, depending on the equip-
ment version. For more information about this
mobile phone base plate, refer to page 177.
Opening
Press the button, see arrow.
Settings*
Slide the center armrest into the desired posi-
tion on the driver's side.
Connection for external audio device
You can connect an external audio device such
as a CD or MP3 player and play audio tracks
over the car's loudspeaker system:
> AUX-IN port, refer to page 161
> USB-audio interface
*, refer to page 162
Storage compartments inside
the vehicle
Depending on your vehicle's equipment, you
will find compartments be side the steering col-
umn
*, in the front doors and in the center con-
sole
*.
There are nets
* on the front-seat backrests.
Clothes hooks
There are clothes hooks on the grab handles in
the rear passenger compartment.
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Things to remember when driving
116
of smoke may emerge from the exhaust, even
for a short period after
the engine is switched
off.
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a wedge
of water can form between tires and road sur-
face. This situation, known as hydroplaning,
means that the tire can completely lose contact
with the road surface, so that neither the car can
be steered nor the brak e be properly applied.<
The risk of hydroplaning increases with declin-
ing tread depth on the tire s, refer also to Mini-
mum tread depth on page 208.
Driving through water
Drive through water on the road only if it is
not deeper than 1 ft/30 cm, and then only
at walking speed at the most. Otherwise, the
vehicle's engine, the electrical systems and the
transmission may be damaged. <
Use the parking brake on inclines
On inclines, do not hold the vehicle for a
lengthy period using the clutch; use the
parking brake instead. Ot herwise greater clutch
wear will result. <
For more information about the drive-off assis-
tant, refer to page 83.
Braking safely
Your BMW is equipped with ABS as a standard
feature. Applying the brakes fully is the most
effective way of braking in situations in which
this is necessary. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pre ssure on the brake pedal
every few miles. Monitor traffic conditions to ensure that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors. Full
braking efficiency will th
en be available when
you need it.
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least br aking is required. Even
light but consistent brak e pressure can lead to
high temperatures, brake wear and possibly
even brake failure. <
You can increase the engine's braking effect by
shifting down, all the way to first gear if neces-
sary. This strategy helps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page 56.
Never drive with the clutch held down,
with the transmission in neutral or with
the engine switched off; otherwise, engine
braking action will not be present or there will be
no power assistance to the brakes or steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals, otherwise peda l function could be
impaired. <
Corrosion on brake rotors
When the vehicle is driv en only occasionally,
during extended periods when the vehicle is not
used at all, and in op erating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminan ts accumulate on the
brake pads. This occurs because the minimum
pressure which must be exerted by the pads
during brake applications to clean the rotors is
not reached.
Should corrosion form on the brake rotors, the
brakes will tend to re spond with a pulsating
effect that even extended application will fail to
cure.
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