Drivingand drivin gsaf ety sy stems
Driving sy stems and your responsibility
Yo ur vehicle is equipped with driving sy stems
which assist youin drivin g, parking and maneu‐
ve ring theve hicle. The driving sy stems are aids
and do not relie ve you of your responsibility. Pay
attention tothe tra ffic conditions at all times
and inter vene when necessary . Beaware of the
limitations rega rding the safe use of these sys‐
te ms.
Fu nction of thera dar senso rs
Some driving and driving safe ty systems use
ra dar sensors tomonitor the area in front of,
behind or next totheve hicle (depending on the
ve hicle's equipment).
Depending on theve hicle's equipment, thera dar
sensors are integrated behind the bumpers
and/or behind thera diator grill. Keep these
parts free of dirt, ice and slush (
→page 336).
The sensors must not be co vered, forex ample
by bicycle rack s, overhanging loads or radar-
re flecting sticke rs.Fo llowing an impact and in th
eeve nt of associated damage , which may not
be visible, tothe bumpers or radiator grille, ha ve
th e function of thera dar sensors checked at a
qu alified specialist workshop. The driver assis‐
ta nce sy stem may no longer workproperly.
Overview of driving sy stems and driving
saf ety sy stems
In this section, you will find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R360° Camera (→page 196)
RABS ( Anti-lock BrakingSystem)
(→page 166)
RAc tive Dis tance Assist DISTRONIC
(→pa ge 177)
RAIR BODY CONTROL(→page 187)
RAc tive Brake Assi st(→page 170)
RAc tive Lane Keeping Assist (→page 211)
RAT TENTION ASSIST (→page 205)
RBA S (Bra keAssist System) (→page 167)
RDY NA MIC BODY CONTROL (→page 187)
REBD ( Electronic Brakeforc eDistribution)
(→page 170)
RESP®(E lectronic Sta bility Program)
(→page 167)
RHOLD function (→page 186)
RSTEER CONTROL (→page 170)
RAc tive Steering Assist (→page 183)
RAc tive Parking Assist (→page 199)
RParking Assist PARKTRONI C (→page19 0)
RRe ar view camera (→page 194)
RCruise control (→page 175)
RBlind Spot Assist andActive Blind Spot Assi st
(→page 208)
RTr af fic Sign Assist (→page 206)
Functions of ABS (anti-lock braking sy stem)
ABS regulates the brake pressure in critical driv‐
ing situations:
RDuring braking, e.g. at maximum full-s top
braking or insuf ficient traction of the tires,
th e wheels are pr evented from blocking.
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Driving and pa rking
RWhen braking.
RInstro ng sidewinds when you are driving
fast erthan 50 mph(8 0 km/h).
ESP
®can stabilize theve hicle byinter vening in
th efo llowing ways:
ROne or more wheels are braked.
RThe engine output is adap ted according to
th e situation.
ESP
®is deactivated if the ESP®OFF å warn‐
ing lamp lights up continuously in the instrument
clus ter:
RDriving stability will no longe r be improved.
RCrosswind Assist is no longer active.
RThe drive wheels could spin.
RETS/4ETS traction control is still active.
% Even when ESP
®is deactivated, you are still
assis tedby ESP®when braking.
ESP
®is inter vening if the ESP®÷ warning
lamp flashes in the instrument clus ter:
RDo not deacti vate ESP®.
ROnly depress the accelera tor pedal as far as
is necessar y.
RAdapt your drivin gst yle to suit the cur rent
ro ad and weather conditions.
Deactivate ESP
®in thefo llowing situations to
impr ovetraction:
Rwhen using snow chains
Rin deep snow
Ron sand or gr avel
% Spinning the wheels results in a cutting
action which pr ovides better grip.
ESP
®is deactivated if theå ESP®OFFwarn‐
ing lamp lights up continuously in the instrument
clus ter.
If th e ESP
®÷ warning lamp lights up continu‐
ousl y,ESP®is not available due toa malfunction.
Observ e any information which may be displa yed
in the instrument clus ter:
RWa rning and indicator lamps (→page 449)
RDispl aymessage s (→page 402) ETS/4ETS (Electronic
Traction Sy stem)
ETS/4ETS traction control is pa rtof ESP
®.
ETS/4ETS can impr ovetheve hicle's traction by
inter vening in thefo llowing ways:
RThe drive wheels are braked individually if
they spin.
RMore drive torque is transferred tothe wheel
or wheels with traction.
Influence of drive prog rams on ESP
®
The drive programs enable ESP®to adapt todif‐
fe re nt we ather and road conditions as well as
th e driver's prefer red driving style. You can
select the drive programs using theDY NA MIC
SELECT switch.
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Driving and pa rking