2009 BMW 3 SERIES differential

Controls
81Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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.
Antilock Brake System ABS
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 116.
Electronic brake-force distribution
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 help s 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 pressure 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 ve hicle 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The laws of physics cannot be repealed,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 the responsibility of the
driver. Therefore, do not reduce the additional
s a f e t y m a r g i n a g a i n b y t a k i n g r i s k s , a s t h i s c o u l d
result in an accident.
<
Deactivating DSC
Press the button for at least 3 seconds; the indi-
cator lamps for DSC in the instrument cluster
light up. Dynamic Traction Control DTC and
DSC have been simultaneously deactivated.
Stabilizing and drive-output promoting actions
are no longer executed.
328i, 335i: in the same way as with a differential
interlock, even if DSC is deactivated, brake
actions are still performed on the rear axle to
enhance drive output if the drive wheels experi-
ence a significant loss of traction.
To increase vehicle stability, activate DSC again
as soon as possible.
Activating DSC
Press the button again; the indicator lamps in
the instrument cluster go out.
For better control
If the indicator lamp flashes:
DSC controls the drive forces and
brake forces.
If the indicator lamps are on:
DSC is deactivated.
Dynamic Traction Control DTC
DTC is a version of DSC in which the drive out-
put is optimized for particular road conditions,
e.g. unplowed snow-covered roads. The sys-
tem assures the maximal drive output, but with
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Things to remember when driving
114
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. Please follow the instructions below
in order to achieve the optimal service life and
economy of operation for your vehicle.
Engine and differential
Always obey all official speed limits.
Up to 1,200 miles/2,000 km
Drive at varying engine and road speeds but do
not exceed:
> Gasoline engine
4,500 rpm or 100 mph/160 km/h
> Diesel engine
3,500 rpm or 93 mph/150 km/h
Avoid full-throttle operation and use of the
transmission's kick-down mode.
After driving 1,200 miles/2,000 km
Engine and vehicle speeds can be gradually
increased.
Tires
Due to technical factors associated with their
manufacture, tires do no t achieve their full trac-
tion potential until afte r an initial break-in
period. Therefore, drive cautiously during the
first 200 miles/300 km.
Brake system
Brakes require an initial break-in period of
approx. 300 miles/500 km to achieve optimized
contact and wear patterns between brake pads
and rotors. Drive cautiously during this break-in
period.
Clutch
The function of the clut ch reaches its optimal
level only after a distan ce driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
The same break-in procedures should be
observed if any of the components mentioned
above have to be renewe d in the course of the
vehicle's operating life.
Saving fuel
The fuel consumption of your vehicle depends
on several factors. You can lower fuel consump-
tion and the environmental impact by taking
certain measures, adjusting your driving style
and having the vehicle serviced regularly.
Remove any unneeded cargo
Additional weight incr eases fuel consumption.
Remove any mounted parts after you
have finished using them
Remove unneeded additional mirrors, the roof
rack and the rear luggage rack after use.
Mounted parts affect th e vehicle's aerodynam-
ics and increase fuel consumption.
Close the windows and glass roof
An open glass roof or window causes higher air
resistance and thus increases fuel consump-
tion.
Check tire inflation pressure regularly
Check the tire inflation pr essure at least twice a
month and before embarking on a long journey,
and correct it if necessary.
Low tire inflation pressure causes higher rolling
resistance and thus increases fuel consumption
and tire wear.
Set off immediately
Do not let the engine wa rm up while the car is
still standing, but set off immediately at moder-
ate engine speed. This is the fastest way for the
cold engine to reach its operating temperature.
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Reference 251
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
AUX-IN
– port103
AUX-IN port 161
Average fuel consumption 69
– setting the units 71
Average speed 69
Avoid highways in navigation 133
Avoiding unintentional alarms 34
Axle loads, refer to
Weights 241
B
Backrest contour, refer to
Lumbar support 43
Backrests, refer to Seat adjustment 42
Backrest width adjustment 43
Back seats
– refer to Rear seats 44
Backup lamps
– replacing bulb 227
Backup lamps, refer to Tail
lamps 226
Band-aids, refer to First-aid pouch 231
Bar, refer to Towing methods 233
Base plate for telephone or
mobile phone
– refer to Snap-in adapter 177
– refer to Snap-in adapter in
the center armrest storage
compartment 103
Bass, tone setting 142
Battery 228
– charging 229
– disposal 35,229
– jump starting 231
– remote control 26
– temporary power failure 229
Battery for mobile phone 177
Battery renewal
– remote control 35
– remote control for vehicle 35
Being towed 233
Belts, refer to Safety belts 46Belt tensioner,
refer to Safety
belts 46
Beverage holders, refer to Cup holders 104
Blower, refer to Air flow
rate 95
Bluetooth, activating/ deactivating 170
Bluetooth, refer to separate Owner's Manual
BMW
– car shampoo 220
BMW Assist, activating 182
BMW Advanced Diesel 192
BMW Assist 181
BMW center 186
BMW Homepage 4
BMW Maintenance System 216
BMW Search 182
BMW webpage 4
Bottle holders, refer to Cup
holders 104
Brake assist, refer to Dynamic Brake Control DBC 81
Brake fluid, refer to Service requirements 71
Brake force display 87
Br

ake lamps
– brake force display 87
– replacing bulb 227
Brake pads 114
– breaking in 114
Brake rotors 116
– brakes 114
– breaking in 114
Brakes
– ABS 81
– BMW Maintenance System 216
– brake force display 87
– breaking in 114
– parking brake 54
– service requirements 71
Brakes, refer to Braking safely 116 Brake system
114
– BMW Maintenance
System 216
– breaking in 114
– disc brakes 116
Breakdown services, refer to Roadside Assistance 230
Breaking in the clutch 114
Breaking in the differential, refer to Engine and
differential 114
Break-in period 114
Brightness of Control
Display 78
Bulb changing, refer to Lamps and bulbs 223
Button for starting the engine, refer to Start/stop button 53
Buttons on the steering
wheel 11
C
California Proposition 65
warning 6
Call
– accepting 171
– ending 172
– rejecting 172
Calling, refer to Phone numbers, dialing 172
Can holders, refer to Cup holders 104
Capacities 242
Capacity of the cargo bay 241
Car battery, refer to Vehicle battery 228
Car care, refer to Care 218
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