
required. Mercedes-Benz recommends that you use a Mercedes-Benz Service Centre for this
purpose. In particular, work relevant to safety or on safety-related systems must be carried out
at a qualified specialist workshop. Display messages Possible causes/consequences and
0003 Solutions
000C The boot lid is open.
X
Close the boot lid. 0003 G
Risk of accident
The bonnet is open. Awarning tone also sounds.
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Close the bonnet. 0007 At least one door is open.
Awarning tone also sounds.
X Close the doors. 0004
ABS and ESP cur‐
rently unavail.
See Owner's Manual G
Ris
kofa ccident
ABS (Anti-lock Braking System), ESP ®
(Electronic Stability Pro-
gram), BA S(Brake Assist) and hill star tassist are temporarily
unavailable. For example, the on-board voltage may be insuffi-
cient. In addition, the 0002,0001and0012 warning lamps light
up in the instrument cluster.
The brake system continues to function normally, but without the
functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop. 0004
ABS and ESP inoper‐
ative See Owner's
Manual G
Risk of accident
ABS, ESP ®
, BAS and hill start assist are unavailable due to amal-
function .Inaddition ,the 0002, 0001and0012 warning lamps light
up in the instrument cluster.
The brake system continues to function normally, but without the
functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop. 294
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Display messages Possible causes/consequences and
0003 Solutions
0011
ESP inoperative
See Owner's Manual G
Risk of accident
ESP ®
, BA Sand hill start assist are unavailable due to amalfunc-
tion. In addition, the 0002and0001 warning lamps light up in the
instrument cluster.
The brake system continue sto function normally, but without the
functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop. 0011
ESP currently
unavailable, see
Owner's Manual G
Risk of accident
ESP ®
, BAS and hill start assist are temporarily unavailable. The
self-diagnosis function might not be complete, for example. The
brake system continues to function normally, but without the
functions listed above. In addition, the 0002and0001 warning
lamps light up in the instrument cluster.
X Carefully drive a short distance making slight steering move-
ments at a speed above 20 km/h until the display message
disappears. 000D The battery is not being charged.
Awarning tone also sounds.
Possible causes are:
R a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull ove rand stop the vehicle safely, paying attentio nto road
and traffic conditions and leave the engine running.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! do not continue driving. The engine could otherwise overheat.
X Switch off the engine.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Visit a qualified specialist workshop. 0006
Check brake wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. Display messages
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Display messages Possible causes/consequences and
0003 Solutions
0009
Turn on the igni‐
tion to release
the parking brake 0009
The indicato rlamp (red )flashes.
You attempted to release the electric parking brak ewhile the igni-
tion was switched off.
X Switch on the ignition. 0004
Check brake fluid
level G
Risk of accident
There is insufficient brake fluid in the brake fluid reservoir. In addi-
tion, the 0004indicator lamp in the instrumentc lusterlights up
and a warning tone sounds.
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 a qualified specialist workshop.
Do not top up the brak efluid. This will not rectify the problem. 0004
EBD, ABS, ESP inop‐
erative See Own‐
er's Manual G
Risk of accident
EBD (Electronic Brake-force Distribution), ABS, ESP ®
, BA Sand hill
start assist are unavailable due to a malfunction. In addition, the
0002, 0001and0012 warning lamps in the instrument cluster light
up and a warning tone sounds.
The brake system continue sto function normally, but without the
functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 000F
Coolant Stop vehi‐
cle Switch engine
off The coolant is too hot. In addition, the
000Fwarning lamp in the
instrument cluster lights up and a warning tone sounds.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Make sure that the air supply to the radiator is not blocked, e.g.
by snow, slush or ice.
X Wait until the display message disappears before restarting the
engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display.
X If the coolant temperature increases again, visit a qualified spe-
cialist workshop immediately. Display messages
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Display messages Possible causes/consequences and
0003 Solutions
The poly-V-belt may hav
etorn. Awarning tone also sounds.
X Pull ove rand stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Check the poly-V-belt.
X If the poly-V-belt is not damaged: do not start the engine
agai nuntil the display message disappears. Otherwise, ther eis
a ris kofe ngine damage.
X If the poly-V-belt is torn: do not continue driving. Consult a
qualified specialist workshop. 000F The engine fa
nis faulty.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads (e.g. driving in moun-
tainous terrain) and stop-and-go driving. 000E
Top up coolant See
Owner's Manual The coolant level is too low.
X
Top up the coolant, observing the warning notes before doing
so (Y page 269).
X If the coolant needs topping up more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop. 0006
Left dipped beam
or
Right dipped beam The left or right-hand dipped-beam headlamp does not light up. In
addition, the main-beam headlamp is also inoperative.
X
Visit a qualified specialist workshop. 0006
AUTO lights inoper‐
ative The light sensor is faulty.
X
Switch the lights on and off turning the rotary light switch to
000B or000D(Y page 215). 0006
Rear left turn sig‐
nal
or
Rear right turn
signal The LEDs in the rear left or right-hand indicator lamp do not light
up.
X
Visit a qualified specialist workshop. 300
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Problem Possible causes/consequences and
0003 Solutions
000A
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. The
smoothness of
the gear change
is restricted. The sub geartrain with the odd gears has failed. The transmission
is in emergency mode.
X
Have the vehicle checked as soon as possible at a qualified
specialist workshop. 000D
The yellow tyre
pressure moni-
tor warning lamp
is on. G
Risk of accident
The tyre pressure monitor has detected a sudden or significant
pressure loss in at least one of the tyres.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do
so.
X Observe the additional messages in the multifunction display
(Y page 289).
The warning light will go out after the flat tyre has been changed
and you have been driving for a few minutes. 0019
The red seat belt
warning lamp
lights up for six
seconds after
the engine is
started 22
. The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
X
Fasten your seat belt (Y page 210).0019
After the engine
starts, a warning
tone sounds for
up to 6 sec-
onds22
. G
Risk of injury
The driver's seat belt is not fastened.
X Fasten your seat belt (Y page 210).
The warning tone ceases. 0019
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 210).
The warning lamp goes out. 22
Only for certain countries. Troubleshooting
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Fuel and fuel tank
Problem Possible causes/consequences and
0003 Solutions
Fuel is leaking from the
vehicle.
G
Ris
kofe xplosion or fire
The fuel line or the fuel tank is defective.
X Set the Start/Stop button to key position 0immediately
(Y page 202).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The fuel filler flap can-
not be opened. The fuel filler flap is not released.
or:
The key batteries are discharged.
X
Unlock the vehicle (Y page 322).
or:
X Unlock the vehicle using the emergency key element
(Y page 321). The fuel filler flap is released, but the opening mechanism is jam-
med.
X
Consult a qualified specialist workshop. 314
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Engine
Problem Possible causes/consequences and
0003 Solutions
The engine will not
start. You can hear the
starter motor operat-
ing. R
There is a malfunctio ninthe engine electronics.
R There is a malfunction in the fuel supply.
R The on-board voltage is too low because the starter battery is
too weak or discharged.
X Before attempting to start the vehicle again, press the Start/
Stop button repeatedly (Y page 202) until all indicator lamps in
the instrument cluster have gone off.
X Try to start the engine again (Y page 220). When doing so,
remember that excessively long and frequent attempts to start
the engine will drain the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine will not
start. You cannot hear
the starter motor. The on-board voltage is too low because the starter battery is too
weak or discharged.
X
Jump-start the vehicle (Y page 338).
If the engine does not start despite attempting to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or a mechanical
component of the engine control unit.
X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it. Troubleshooting
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Problem Possible causes/consequences and
0003 Solutions
The coolant tempera-
ture gauges shows a
value above 120 †. A
display message may
also appeara
nd a warn-
ing tone may sound. The coolant level is too low. The coolant is too hot and the engine
is no longe
rbeing cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 269). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The
coolant is too hot and the engine is no longer being cooled suffi-
ciently.
X
If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. PARKTRONIC
Problem Possible causes/consequences and
0003 Solutions
Only the red segments
in the PARKTRONIC
warning display are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds and
the indicator lamp in
the PARKTRONIC but-
ton lights up. PARKTRONIC has malfunctioned and has switched itself off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 284).
X Switch the ignition back on. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. 316
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