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Smart
Technology
Notice
about
data
recorded
by vehicle
control
modules
Your veh icle is not equipped with an Event Da-
ta Recorder (EOR), installed by some manu-
facture rs fo r the express purpose of capturing
data for retr ieval after an accident or crash
event . EDR's are sometimes called "crash re-
corders".
Some state laws rest rict the retr ieval or down -
loadi ng of data stored by EDR's that were in-
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event w ithout the owner's consent.
Alt hough your vehicle is not equ ipped w it h an
EDR, it is equipped with a number of elect ron-
ic control modules fo r various vehicle systems
such as, for examp le, engine f unction, em is-
sion control, as well as for the airbags and
safety belt s.
These electronic contro l modules also record
vehicle-related data dur ing norma l veh icle op-
erat ion for diagnostic and repair purposes .
The recording capacity of the electronic con-
trol modules is limited to data (no sound is re-
corded) and only a small amount of data is ac-
tually recorded over a very limited period of
time and stored when a syst em faul t or ot her
condition is sensed by a cont rol unit . Some of
the data then stored may relat e to vehicle
speed, direct ion, bra king as we ll as restra int
system use and perfo rmance in the event of a
crash or other condit ion. Stored data can only
be read and downloaded w ith special equip-
ment.
Electronic
stabilization
control
(ESC)
Description
The ESC reinforces driver safety. It reduces
the risk of slipp ing and improves driving sta-
bili ty . ESC detects critical sit uations such as
the veh icle oversteer ing and understee ring or
Smart
Technolog
y
185
t he wheels are spinning . The vehicle is stabi -
lized by applying the brakes or red ucing en-
gine torq ue. Once the ESC is act ively reg ulat-
ing, the
G)
indicato r light bli nks in the instru-
ment cluster.
The anti-lock braking system (ABS), brake as-
sist system, ant i-slip regu lation (ASR), elec-
tron ic different ial lock (EDU, electron ic differ -
ential lock* (front wheel drive) and selective
whee l to rque control* (all whee l drive) are in-
teg rated in the ESC. The ESC suppo rt s the sta-
bilization of the vehicle th rough a change in
t he st eering torq ue.
Anti-lock braking system (ABS)
ABS prevents the whee ls from locking when
braking . The vehicle can still be steered even
dur ing hard braking. App ly steady pressure to
the brake pedal. Do not pump the pedal. A
puls ing in the brake pedal indicates t hat t he
system is acti ng t o stabilize the vehicl e.
Brake assist system
The brake assist system can decrease braking
dist ance. It increases braking power when the
drive r presses the brake pedal quickly in emer-
gency situations. You m ust press and hol d the
brake pedal unt il the dangerous sit uat ion is
over. In vehicles with adapt ive cruise control *,
the brake assist system is more sensitive if the
distance detected to the vehicle ahead is too
small.
Anti-slip regulation (ASR)
ASR reduces eng ine power when the dr ive
whee ls beg in spi nning and adapts the fo rce to
the road conditions . This makes it easier to
start, accelerate and dr ive up inclines.
Electronic differential lock (EDL)
The EDL bra kes whee ls t hat are spinn ing and
trans f ers t he dr ive power to t he othe r drive
whee l or w heels if the vehicle is equipped with
all w heel drive*) . This function is availab le up
to approximately 62 mph (100 km/h).
I n extreme cases, EDL automa t ically switches
off t o keep t he brake on the braked wheel
from overheat ing. The vehicle is still working
.,..
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