Driving and driving saf
ety sy stems Driving sy
stems and your responsibility Yo
ur vehicle is equipped with driving sy stems
which assist you in driving, parking and manoeu‐
vring 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 necessa ry. Be aware of the
limitations rega rding the safe use of these sys‐
te ms. Fu
nction of thera dar senso rs Some driving and driving sa
fety sy stems 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 grille. Keep these
parts free of dirt, ice and slush . The sensors
must not be co vered, forex ample bybicycle
ra ck s, ove rhanging loads or radar-reflecting
st icke rs.Fo llowing an impact and in theeve nt of associated dama
ge, which may not be visible, to
th e bumpers or radiator grille, ha vethe function
of thera dar sensors checked at a qualified spe‐
cialist workshop. The driver assis tance 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:
R 360° Camera (→ page 224)
R ABS (Anti-lock BrakingSystem)
(→ page 189)
R Distance Pilot DISTRONIC (→ page 202)
R Adaptive brake lights (→ page199)
R AIR BODY CONTROL (→ page214)
R Active Brake Assi st (→page 194)
R Active Lane Keeping Assist (→ page244)
R ATTENTION ASSIST (→ page 238)
R BAS (Bra keAssist System) (→ page189)
R DYNA MIC BODY CONTROL (→ page214) R
EBD ( Electronic Brakefo rc eDistribution)
(→ page 193)
R ESP ®
(Electronic Stability Program)
(→ page 189)
R DRIVE PIL OT (→page 209)
R HOLD function (→ page212)
R Steering Pilot (→ page 209)
R Limiter (→ page199)
R Parking Pilot (→ page 227)
R Parking Assist PARKTRONIC (→ page218)
R Reversing camera (→ page 221)
R Cruise control (→ page199)
R Blind Spot Assi stand Active Blind Spot Assi st
( → page 242)
R Traf fic Sign Assi st (→page 239) 18 8
Driving and pa rking 
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
? Coolant warning lamp The
red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. Do not con‐
tinue driving under any circums tances. #
Obser vethe messages in the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop. 514
Displaymessa ges and warning/indicator lamps