BMW 2011 328i Sedan Owner's Manual

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System limitations
Even with PDC, final responsibility for 
estimating the distance between the 
vehicle and any obstructions always remains 
with the driver. Even when sensors are pro-
vided, there is a blind spot in which objects can 
no longer be detected. The system is also sub-
ject to the physical limits that apply to all forms 
of ultrasonic measurement, such as those 
encountered with trailer towbars and hitches, 
thin or wedge-shaped objects, etc. Low objects 
that have already been displayed, e.g. curbs, 
can disappear again from the detection area of 
the sensors before or after a continuous tone 
sounds. Higher, protruding objects, e.g. ledges, 
cannot be detected. Therefore, always drive 
cautiously; otherwise, there is a risk of personal 
injury or property damage.
Loud sound sources outside or inside the car 
can drown out the PDC signal. Therefore, 
always drive cautiously; otherwise, there is 
a risk of personal injury or property damage.
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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
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.
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