2012 MERCEDES-BENZ CLS COUPE belt

Display messages Possible causes/consequences and
M Solutions
Blind Spot Assis
torActive Blind Spot Assist is temporaril yinop-
erative .Possible causes:
R the sensors are dirty.
R the function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
Once the causes listed above no longer apply,t he display message
goes out.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 159).
X Clean the sensors (Y page 304).
X Restart the engine. Blind Spot Assist
inoperative or
Active Blind Spot Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
The yellow
9indicator lamps also light up in the exterior mir-
rors.
X Visit aqualified specialist workshop. Park Assist cancel‐
led The driver's door is open and the driver's seat belt has not been
fastened.
X
Repeat the parking process with the seat belt fastened and the
driver's door closed. You have inadvertently touched the multifunction steerin
gwheel
while steerin gintervention was active.
X While steerin gintervention is active, make sure not to touch the
multifunction steerin gwheel. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 187). Display messages
247On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Â
Remove starting
button
,then insert key The KEYLESS-GO ke
yisnot continually detected.
KEYLESS-GO is temporaril ymalfunctioning or is defective. Awarn-
ing tone also sounds.
X Inser tthe keyintot he ignition loc kand tur nittot hedesired
position.
X Visi taq ualified specialist workshop. Â
Close doors to
lock vehicle At least one door is open.
Awarning tone also sounds.
X Close all door sand loc kthe vehicle again. Warning and indicator lamps in the
instrument cluster
Warning and indicator lamps over-
view
L Dipped-beam headlamps
(Ypage 111)
T Side lamps (Y page 112)
K Main-beam headlamps
(Ypage 113)
#! Turn signals (Y page 113)
R Rear foglamp (Y page 112)
ü Seat belts (Y page 259)
J Brakes (Ypage 260)
! ABS (Ypage 261)
÷ ESP®
(Y page 263)
å ESP®
OFF (Y page 263)
M SPORT handling mode in AMG
vehicles (Ypage 264)
6 SRS (Ypage 266)
; Enginediagnostics
(Y page 266)
8 Reserve fuel (Y page 267)
? Coolant (Ypage 267)
· Distancewarning signal
(Y page 269) %
Diesel engine: preglow
(Ypage 143)
h Tyre pressure monitor
(Ypage 270) 258
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Safety
Seat belts Problem Possible causes/consequences and
M Solutions
ü
Only for certain coun-
tries: the red seat belt
warning lamp lights up
for six seconds after
the engine starts.
The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X
Fasten your seat belt (Y page 49).ü
Only for certain coun-
tries: the red seat belt
warning lamp lights up
after the engine starts.
In addition,
awarning
tone sounds for up to
six seconds. The driver's seat belt is not fastened.
X
Fasten your seat belt (Y page 49).
The warning tone ceases. ü
The red seat belt warn-
ing lamp lights up after
the engine starts, as
soon as the driver's or
the front-passenger
door is closed.
The driver or front passenger has not fastened their seat belt.
X
Fasten your seat belt (Y page 49).
The warning lamp goes out. There are objectsont
he front-passenger seat.
X Remove the objectsf rom the front-passenger seat and stow
them in asecure place.
The warning lamp goes out. ü
The red seat belt warn-
ing lamp flashes and an
intermittenta
udible
warning sounds. The driver or passenger has no
tfastened their seat belt .Atthe
same time, the car is being driven faster than 25 km/h or has been
briefly driven faster than 25 km/h.
X Fasten your seat belt (Y page 49).
The warning lamp goes out and the intermittent warning tone
ceases. There are objectsont
he front-passenger seat. At the same time,
you are driving faster than 25 km/h or have briefly driven faster
than 25 km/h.
X Remove the objectsf rom the front-passenger seat and stow
them in asecure place.
The warning lamp goes out and the intermittent warning tone
ceases. Warning and indicator lampsint
he instrument cluster
259On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
J
The red brake system
warning lamp comes on
while the vehicle is
moving.
Awarning tone
also sounds. You are driving with the parking brake applied.
X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. 6
The red SRS warning
lamp is lit while the
engine is running.
There is
amalfunction in the SRS (Supplemental Restraint Sys-
tem).
G WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Drive on carefully.
X Have SRS checked at aqualified specialist workshop immedi-
ately.
For further information about the Supplemental Restraint System,
see (Y page 41). Engine
Problem Possible causes/consequences and
M Solutions
;
The yellowe
ngine diag-
nosticsw arning lamp
lights up while the
engine is running. There may be
afault, for example:
R in the engine management
R in the fuel injection system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
R in the fuel system
The emission limit values may be exceeded and the engine may
be running in emergency mode.
X Have the vehicle checked as soon as possible at aqualified
specialist workshop. Vehicles with
adiesel engine: the fuel tank has been run dry
(Y page 158).
X Start the engine three to four times after refuelling.
If the yellow engine diagnostics warning lamp goes out, emer-
gency running mode is cancelled. The vehicle need not be
checked. 266
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

X
Vehicles without memory function: if nec-
essary,m ove the driver's or front-
passenger seat forwards.
X Open the boot.
X Pull right-hand or left-hand rear seat back-
rest release handle :.
The corresponding rear seat backrest is
released. X
Fold rear seat backrest ;forwards.
X Move the driver's or front-passenger seat
back if necessary.
Folding back the seat backrest G
WARNING
Make sure that the rear seat backrest is cor-
rectly engaged. Otherwise, vehicle occupants
could be injured by objects being thrown
around if you:
R brake sharply
R change direction suddenly
R are involved in an accident
If the rear seat backrest is not engaged, this
will be shown in the multifunction display in
the instrument cluster.
! Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise, it could be dam-
aged. X
Move the driver's or front-passenger seat
forward if necessary.
X Fold rear seat backrest :back until it
engages.
X Move the driver's or front-passenger seat
back if necessary.
i You shoulda lways engage the rear seat
backrests if you do not need the through-
loading feature. This will prevent unauthor-
ised access to the boot from the vehicle
interior. Securing
aload
Lashing eyelets General notes
G
WARNING
Distribut ethe load on th elashin geyelets
evenly.
Otherwise, vehicle occupant scould be
injured by object sbein gthrown aroun difyou:
R brak esharply
R change directio nsuddenly
R are involve dinanaccident
Pleas eobserv ethe loadin gguidelines.
Observ ethe followin gnotes on securing
loads:
R secure th eload usin gthe lashin geyelets.
R do no tuse elastic straps or nets to secure
al oad, as these are only intended as an
anti-slip protection for light loads. 276
Stowage areasStowinga
nd features

R
clean cloth covers with amicrofibre cloth
moistene dwithas olution containing
1%d etergen t(e.g. washing-up liquid).
Rub carefully, and alway swipe entire
seat sections to avoid leaving visible
lines. Leave the seat to dry afterwards.
Cleaning results depend on the type of
dirt and how long it has been there.
R clean DINAMICA cover swithadamp
cloth. Make sure that you wipe entire
seat sections to avoid leaving visible
lines.
! Do not use microfibre cloths to clean gen-
uine leather, artificial leather or DINAMICA
covers. If used often ,these can damage the
cover.
i Note that regular care is essential to
make sure that the appearance and com-
fort of the cover sare retained over time.
Cleaning the seat belts !
Do not clean the seat belts using chemical
cleanin gagents .Don ot dry the seat belts
at temperatures above 80 †orindirect
sunlight.
X Use clean, lukewarm water and soap solu-
tion.
Cleaning the roof lining and carpets X
Roof lining: if it is very dirty, use asoft
brush or dry shampoo.
X Carpets: use the carpet and textile clean-
ing agents recommended and approved by
Mercedes-Benz. Care
307Maintenance and care Z

Jump-starting
G
WARNING
There is arisk of acid burns when jump-starting avehicle due to the gases which escape from
the battery. Do not lean over the battery while the engine is being jump-started. G
WARNING
Gases escaping from the battery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with the important safety precautions when handling batteries. You will find these under
"Battery (vehicle) -important safety notes" in the index. G
WARNING
Non-combusted fuel can collect in the exhaust system and ignite. There is arisk of fire. Avoid
repeated and lengthy starting attempts.
! Vehicles with apetrol engine: avoid repeated and length ystarting attempts. Otherwise,
th en on-combusted fuel may damage th ecatalytic converter.
Do not use arapid chargin gdevic etos tart th evehicle. If your vehicle's batter yisdischarged,
the engin ecan be jump-started from another vehicle or from asecon dbatter yusing jump
leads. Observe the following points:
R The batter yisnot accessible in all vehicles. If the other vehicle's batter yisnot accessible,
jump-start the vehicle using asecond battery or ajump-starting device.
R vehicles with apetrol engine: onlyjump-star tthe vehicle when the engine and exhaust
system are cold.
R do not start the engine if the battery is frozen.L et the battery thaw first.
R jump-starting may only be performed from batteries with anominal voltage of 12 V.
R only use jump leads that have asufficient cross-section and insulated terminal clamps.
R if the battery is fully discharged, leave the battery that is being used to jump-start connected
for afew minutes before attempting to start. This charges the empty battery alittle.
R make sure that the two vehicles do not touch.
Make sure that:
R The jump leads are not damaged.
R Non-insulated parts of the terminal clamps do not come into contact with other metal parts
while the jump leads are connected to the battery.
R the jump leads cannot come into contact with parts such as the V-belt pulleyort he fan.
These parts move when the engine is started and while it is running.
X Firmly depress the parking brake.
X Shift the transmission to position P.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 296).
Position number Bidentifies the charged battery of the other vehicle or an equivalent jump-
startingd evice. Jump-starting
319Breakdown assistance Z

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variation sare pos-
sible. Not ethat your vehicle may not be
equipped with all of the function sdescri-
bed. This is also the case for system sand
function srelevan ttosafety.
i Read the information on qualified special-
ist workshops: (Y page 23). Information on technical data
You can find curren ttechnical data on the
Interne tat:
http://www.mercedes-benz.com
i The technical data was determined in
accordance with EC Directives .All data
applies to the vehicle' sstandard equip-
ment .The data may therefore differ for
vehicles with optional equipment .You can
obtain further information from a
Mercedes-Benz Servic eCentre. Genuine Mercedes-Benz parts
G
WARNING
Drivin gsafety may be impaired if non-
approved parts, tyres and wheels or safety-
relevant accessories are used.
This could lead to malfunctions in safety-rel-
evant systems, e.g. the brake system. This
could cause you to lose control of your vehicle
and cause an accident.
For this reason, Mercedes-Benz recommends
that you use genuine Mercedes-Benz parts or
parts of equal quality. Only use tyres, wheels
and accessories that have been specifically
approved for your vehicle. H
Environmental note
Daimler AG also supplies reconditioned
assemblies and parts which are of the same
quality as new parts. For these, the same war-
ranty applies as for new parts.
! Airbags and seat belt tensioners, as well
as control units and sensors for these
restraint systems, may be installed in the
following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R dashboard
R instrument cluster
R centre console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficienc yofthe restraint sys-
tems.
Have accessories retrofitted at aqualified
specialist workshop.
Mercedes-Benz testsg enuine parts and con-
version parts and accessories that have been
specifically approved for your vehicle for their
reliability, safety and suitability. Despite
ongoing market research, Mercedes-Benz is
unable to assess other parts. Mercedes-Benz
accepts no responsibility for the use of parts
that have been independently or officially
approved.
In Germany, certain parts are only officially
approved for installation or modification if
they comply with legal requirements. This
also applies to some other countries. All gen-
uine Mercedes-Benz parts meet the approval
requirements. The use of non-approved parts
may invalidate the vehicle's general operating
permit. 356
Genuine Mercedes-Benz partsTechnical data