2010 BMW 328I XDRIVE CONVERTIBLE differential

Technology for driving comfort and safety
82 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 page120.
Electronic brake-force distribution
EBV
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 helps 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 vehicle maintain a safe
course within physical limits 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vidual wheels.The laws of physics cannot be repealed,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
safety margin again by taking risks, as this could
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.
In the same way as with a differential interlock
*,
even if DSC is deactivated, brake actions are
still performed to enhance drive output if the
drive wheels experience 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 is regulating the drive and brak-
ing 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,

Things to remember when driving
118
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 an engine speed of 4,500 rpm or a
road speed of 100 mph/160 km/h.
Avoid full-throttle operation and use of the
transmission's kickdown 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 not achieve their full trac-
tion potential until after 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 clutch reaches its optimal
level only after a distance 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 renewed 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 increases 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 the 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 pressure 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 warm 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.

Reference 249
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Average fuel consumption71
– setting the units72
Average speed71
Avoid highways in
navigation136
Avoiding unintentional
alarms33
Axle loads, refer to
Weights241
B
Backrest contour, refer to
Lumbar support44
Backrests, refer to Seat
adjustment43
Backrest width adjustment44
Back seats
– refer to Rear seats46
Backup lamps
– replacing bulb225,226,227
Bag holder111
Band-aids, refer to First aid
pouch230
Bar, refer to Towing
methods233
Base plate for telephone or
mobile phone
– refer to Snap-in adapter186
– refer to Snap-in adapter in
the center armrest storage
compartment107
Bass, tone setting146
Battery228
– charging228
– disposal35,228
– jump-starting231
– remote control26
– replacing228
– temporary power failure228
Battery for mobile phone187
Battery renewal
– remote control35
– remote control for vehicle35
Being towed233
Belt hand-over49
– pinch protection system49
Belts, refer to Safety belts48Belt tensioner, refer to Safety
belts48
Beverage holders, refer to
Cupholders108
Blinds, refer to Roller sun
blinds106
Blower, refer to Air
volume100
Bluetooth, activating/
deactivating178
BMW
– car shampoo221
BMW Assist190
BMW Assist,
activating192,194
BMW Homepage4
BMW Maintenance
System217
BMW Search192
BMW webpage4
Bottle holders, refer to
Cupholders
108
Brake Assist, refer to Dynamic
Brake Control DBC82
Brake fluid, refer to Service
requirements73
Brake Force Display89
Brake lamps
– Brake Force Display89
– replacing bulb225,226,227
Brake pads118
– breaking in118
Brake rotors120
– brakes118
– breaking in118
Brakes
– ABS82
– BMW Maintenance
System217
– Brake Force Display89
– breaking in118
– parking brake56
– service requirements73
Brakes, refer to Braking
safely120Brake system118
– BMW Maintenance
System217
– breaking in118
– disc brakes120
Breakdown services, refer to
Roadside Assistance230
Breaking in the clutch118
Breaking in the differential,
refer to Engine and
differential118
Break-in period118
Brightness of the Control
Display80
Bulb changing, refer to Lamps
and bulbs223
Button for starting the engine,
refer to Start/stop button55
Buttons on the steering
wheel11C
California Proposition 65
warning5
Call
– accepting179
– ending180
– rejecting180
Calling, refer to Phone
numbers, dialing180
Can holders, refer to
Cupholders108
Capacities241
Capacity of the cargo area241
Car battery, refer to Vehicle
battery228
Car care, refer to Care219