Problem Possible causes/consequences and
0050
0050Solutions 00C6
The yellowE SP®
warning lamp
flashes while the
vehicle is in
motion. G
Risk of accident
ESP ®
or traction control has intervened because there is arisk of
skidding or at least one wheel has started to spin.
Cruise control or Distronic Plus* is deactivated.
X Only depress the accelerator pedal as far as necessary when
pulling away.
X Release the accelerator pedal while you are driving.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
.
Exceptions: (Y page 55) 00C7
The yellow ESP ®
OFF warning
lamp is lit while
the engine is
running. G
Risk of accident
ESP ®
and ESP ®
trailer stabilisation are deactivated. ESP ®
will not
stabilise the vehicle if it starts to skid or if awheel starts to spin.
X Reactivate ESP ®
.
Exceptions: (Y page 55)
X Adapt your driving style to suit the road and weather conditions. 00C6
00C7
The yellow ESP
®
and ESP ®
OFF
warning lamps
are lit while the
engine is run-
ning. G
Risk of accident
ESP ®
,B AS,B AS PLUS* ,PRE-SAFE ®
,P RE-SAFE ®
Brake*, the
HOLD function, hill start assist, the adaptive brake lights and
ESP ®
trailer stabilisation are unavailable due to amalfunction.
ESP ®
will not stabilise the vehicle if it starts to skid or if awheel
starts to spin.
The brake system continues to function normally, but without the
functions listed above.
ATTENTION ASSIST is deactivated.
X Observe the additional messages in the multi-function display
(Y page 208).
X Drive on carefully.
X Visit aqualified specialist workshop. 0081
The red SRS
warning lamp is
lit while the
engine is run-
ning. G
Risk of injury
There is amalfunction in the restraint system. The airbags or belt
tensioners may either be triggered unintentionally or, in the event
of an accident, not be triggered at all.
X Visit aqualified specialist workshop immediately. Troubleshooting
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Problem Possible causes/consequences and
0050
0050Solutions 004D
The red brake
system warning
lamp comes on
while the vehicle
is moving. A
warning 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. 004D
The red brake
system warning
lamp comes on
while the engine
is running. A
warning tone
also sounds. G
Risk of accident
There is insufficient brake fluid in the fluid reservoir.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult aqualified specialist workshop.
X Observe the additional messages in the multi-function display
(Y page 208).
Do not top up the brake fluid. This will not rectify the fault. 00AE
The red coolant
warning lamp
lights up while
the engine is
running and the
coolant temper-
ature gauge is at
the start of the
scale. The temperature sensor for the coolant temperature gauge is
faulty.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Consult aqualified specialist workshop. 234
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Problem Possible causes/consequences and
0050
0050Solutions 00AE
The red coolant
warning lamp
comes on while
the engine is
running. Awarn-
ing tone also
sounds. The coolant temperature has exceeded 130 †. The airflow to the
radiator may be blocked or the coolant level may be too low.
The engine is not being cooled sufficiently and may be damaged.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Make sure that the air supply to the radiator is not blocked, e.g.
by slush.
X Check the coolant level (Y page 183). Observe the warning
notes.
X If necessary, top up the coolant.
X Have the engine cooling system checked at aqualified specialist
workshop if the coolant needs topping up more often than usual.
If the coolant level is correct,t he electric radiator fan may be
faulty.
X Do not continue driving under any circumstances.
X Consult aqualified specialist workshop. 00BB
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. Vehicles with
adiesel engine: the fuel tank has been run dry.
X Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. 00BB
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. There may be
afault, for example:
R in the engine management
R in the ignition system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
The emission limit values may be exceeded and the engine can
run in emergency mode.
X Have the vehicle checked as soon as possible at aqualified
specialist workshop. Troubleshooting
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Problem Possible causes/consequences and
0050
0050Solutions 0082
The red seat belt
warning lamp
lights up for six
seconds after
the engine is
started 42
. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X
Fasten your seat belt (Y page 76).0082
After the engine
starts, awarning
tone sounds for
up to six sec-
onds 42
. G
Risk of injury
The driver's seat belt is not fastened.
X Fasten your seat belt (Y page 76).
The warning tone ceases. 0082
The red seat belt
warning lamp
lights up after
the engine
starts, as soon
as the driver's
door or the
front-passenger
door is closed. G
Risk of injury
The driver or front passenger has not fastened their seat belt.
X Fasten your seat belt (Y page 76).
The warning lamp goes out. G
Risk of injury
There are objectsont he front-passenger seat.
X Remove the objectsf rom the front-passenger seat and stow
them safely.
The warning lamp goes out. 0082
The red seat belt
warning lamp
flashes and an
intermittent
audible warning
sounds. G
Risk of injury
The driver or front passenger has not fastened their seat belt. At
the same time, you are driving faster than 25 km/ho rhave briefly
drive nfaster than 25 km/h.
X Fasten yours eat belt(Ypage76).
The warning lamp goes out and the intermittent audible warning
ceases. G
Risk of injury
There are objects on the front-passenge rseat. At the same time,
you are driving faster than 25 km/h or have briefly drive nfaster
than 25 km/h.
X Remove the objects from the front-passenge rseat and stow
them safely.
The warning lamp goes out and the intermittent audible warning
ceases. 42
Only for certain countries. 236
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Problem Possible causes/consequences and
0050
0050Solutions 00B8
The yellow
reserve fuel
warning lamp
lights up while
the engine is
running. The fuel level has fallen below the reserve range.
X
Refuel at the nearest filling station. Warning tones
Problem Possible causes/consequences and
0050 0050Solutions The anti-theft warning
alarm* is triggered. You have opened the vehicle with the anti-theft alarm system still
activated*.
X
Switch off the alarm (Y page 58).You hear
awarning
tone. Am
essage appears in the multi-function display.
X See the explanations for the display message (Y page 208).You are driving with the parking brake applied.
X
Release the parking brake. The lights are still switched on when you leave the vehicle.
Coupé:
X
Turn the light switch to 0027or0066.
or
X If the rear foglamp is switched on: press the light switch in to
the stop.
Cabriolet:
X Turn the light switch to 0066. G
Risk of injury
The driver or front passenger has not fastened their seat belt.
X Fasten your seat belt (Y page 76).You hear
acontinuous
tone. You have switched the engine off, opened the driver's door and
released the seat belt, or opened the bonnet,w
ith the HOLD func-
tion or Distronic Plus* activated.
X Deactivat ethe HOLD function (Y page 135).
or
X Deactivat eDistronic Plus* (Y page 131). Troubleshooting
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Problem Possible causes/consequences and
0050
0050Solutions You hear
awarning
tone. The red distance warning lamp*
00BAlights up while the vehicle
is in motion.
X Observe the explanations for the distance warning lamp*
(Y page 232). Accident
Problem Possible causes/consequences and
0050 0050Solutions Fuel is leaking from the
vehicle.
G
Risk of fire
The fuel line or the fuel tank has been damaged. The leaking fuel
creates arisk of fire or explosion.
X Switch off the ignition immediately.
X Remove the ignition key.
Do not restart the engine under any circumstances. The leaking
fuel creates arisk of fire or explosion.
X Consult aqualified specialist workshop. You are unable to
determine the extentof
the damage.
X
Consult aqualified specialist workshop. You cannot detect any
damage.
X
Start the engine as normal. The active bonnet func-
tion (pedestrian protec-
tion) has been trig-
gered. Your vehicle has been involved in
afrontal collision.
X Reset the triggered active bonnet (pedestrian protection)
(Y page 256). The NECK-PRO head
restraint
sonthe driv-
er's and front-
passenger seats have
been triggered. Your vehicle has been involved in
arear-end collision.
X Reset the NECK-PRO head restraint s(Ypage 257). 238
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X
Keeping the AIRCAP draught stop horizon-
tal, guide it into the slot betwee nthe head
restraints in the direction of the arrow with
both racks straight down.
X Push the AIRCAP draught stop down until
the bolts are at the same heigh tasthe
mountings on the head restraints.
X Insert the bolts into the mountings on both
sides.
X Turn the bolts firmly with the 4mmhex-
socket wrench until they engage.
The markings on the bolts are vertical. Changing batteries (key)
Notes
It is advisabletoh ave the batteries replaced
at aq ualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre. G
Risk of poisoning
Batteries contain toxic and caustic substan-
ces. For this reason, keep batteries awayf rom
children.
If ab attery is swallowed, consult adoctor
immediately. H
Environmental note
Do not dispose of batteries with the house-
hold rubbish. They contain highl ytoxic sub-
stances.
Take discharged batteries to aqualified spe-
cialist workshop, e.g. aMercedes-Benz Service Centre, or to
aspecia lcollection point
for old batteries. Key
Checking the battery X
Press the 0037or0036 button.
The battery is working properl yifthe bat-
tery charge indicator lamp lights up briefly.
Removing/installing the battery You require
aCR20253Vc ell battery.
X Remove the emergency key element from
the key (Y page 249). X
Press the emergency key element into the
opening in the key in the direction of
arrow 0047until cover 0046of the battery tray
opens. Be sure that yourf ingers are not
stopping the cover from opening. Changing batteries (key)
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X
Remove th ecover of th ebattery tray.
X Repeatedly tap th ekeyagainst your palm
until battery 008Afallsout of th ekey.
X Inser tthe newb attery wit hthe positive
pole facin gupwards. Use alint-free cloth to
do so.
X Inser tthe fron ttab soft hebattery tray's
cover first and then press to close it.
X Chec kthe function of all ke ybuttons on the
vehicle. Changin
gbulbs Notes on changin
gbulbs
i If you need assistanc einchangin gthe
bulbs ,contac taqualified specialist work-
sho pwhichh as th eneces saryspecialist
knowledge and tools to carry out th ework
required. Mercedes-Ben zrecommends
that you use aMercedes-Ben zServi ce
Centr efor this purpose .Inparticular, work
relevan ttosafetyoro nsafety-related sys-
tems mus tbecarriedout at aqualified spe-
cialist workshop.
Bulb sand lamp sare an important aspect of
vehicl esafety. You mus tthe refor emakes ure
that these function correctl yatall times.
Hav ethe headlamp setting schecked regu-
larly. Only use th etypes of bulbs specified
here. If th enew bulb still does no tligh tup,
consult aqualified specialist workshop.
Do no ttou ch th eglasstub eofn ewbulbs with
your bare hands. Even minor contamination
can burn into th eglasssurfac eand reduce th
es ervic elife of th ebulbs .Always use alint-
free cloth or only touch th ebase of th ebulb
when fitting. G
Ris
kofi njury
Bulb sand lights can become ver yhot.F or this
reason ,allow them to cool down before
changin gthem. Otherwise ,you could burn
yourself when you touch them.
Kee pbulbs out of th ereac hofc hildren .Oth-
erwise, they could damage them, for example,
and injur ethemselves.
Never use abulb whic hhas been dropped.
Suc hab ulb may explod eand injur eyou.
Halogen bulbs are pressurised and could
explod ewhen you chang ethem, especially if
they are ver yhot.Y ou should therefor ewear
eye protection and gloves when you are
changin gthem. G
Ris
kofi njury
Xenon bulbs carry ahigh voltage. You could
get an electric shock and be seriously or even
fatally injured if you touch th eelectric con-
tacts on xeno nbulbs .Therefore ,never
remove th ecover from xeno nbulbs.
Do no tcha ng ex enon bulbs yourself ,but have
them replaced at aqualified specialist work-
sho pwhichh as th eneces saryspecialist
knowledge and tools to carry out th ework
required.
Mercedes-Ben zrecommends that you use a
Mercedes-Ben zServic eCentr efor this pur-
pose. In particular, wor krelevan ttosafetyor
on safety-related systems mus tbecarriedout
at aq ualified specialist workshop. 260
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