radiator MERCEDES-BENZ CLS COUPE 2018 Owners Manual

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 the Mercedes star. Keep these
parts free of dirt, ice and slush (→ page 400).
The sensors must not be co vered, forex ample
by cycle rack s, ove rhanging loads, sticke rs,fo il
or foils toprotect against stone chipping. In the
eve nt of dama getothe bumpers or radiator
grille, or following a collision impacting the
bumpers or radiator grille, ha vethe function of
th era dar sensors checked at a qualified special‐
ist workshop. The driver assis tance sy stem may
no longer workproper ly. 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 220)
R ABS (A nti-lock Braking System)
(→ page 182)
R Active Dis tance Assi stDISTRONIC
(→ page 196)
R Adaptive brake lights (→ page192)
R AIR BODY CONTROL (→ page210)
R Active Brake Assi st (→page 187)
R Active Lane Keeping Assist (→ page243)
R ATTENTION ASSIST (→ page 235)
R BAS (Brak eAssist System) (→ page182)
R Hill Start Assist (→ page 208)
R DYNA MIC BODY CONTROL (→ page 209)
R EBD ( Electronic Brakefo rc eDistribution)
(→ page 186) R
ESP ®
(Electronic Stability Program)
(→ page 182)
R Speed Limit Assist (→ page 237)
R Active Speed Limit Assi st (→page 200)
R HOLD function (→ page 208)
R STEER CONTROL (→ page 187)
R Active Steering Assist (→ page 202)
R Speed limiter (→ page193)
R Active Parking Assist (→ page 224)
R Parking Assist PARKTRONIC (→ page213)
R Reversing camera (→ page217)
(→ page 222)
R Cruise control (→ page192)
R Blind Spot Assist and Active Blind Spot Assi st
( → page 241) (→ page241)
R Traf fic Sign Assi st (→page 238) Driving and parking
181

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. #
Obser vethe messages on 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 Display messages and
warning/indicator lamps 537