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
X
X Solutions 7 G
Risk of injury
If the symbol appears in the multi-function display, a seat belt
buckle has been released on a rear seat while driving.
X Ask occupants in the rear to fasten their seat belts.
Further information on the status indicator for the rear seat
belts* (Y page 72) A The tailgate is open.
X
Close the tailgate. ? G
Risk of accident
Vehicles with an anti-theft alarm system*: the bonnet is open.
X Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Close the bonnet. ; At least one door is open. A warning tone also sounds.
X
Close the doors. ! ABS and
ESP cur-
rently
unavail.
See Own-
er's Man-
ual
G
Risk of accident
ABS (Anti-lock Braking System), ESP ®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE ®
*, hill start assist
and ESP ®
trailer stabilisation are temporarily unavailable. The
self diagnosis function might not be complete, for example.
The d warning lamp also lights up in the instrument clus-
ter.
The brake system continues to function normally, but without
the functions listed above.
X Carefully drive a short distance making slight steering
movements at a speed above 20 km/h.
The message goes out when ABS, ESP ®
, BAS, PRE-
SAFE ®
*, hill start assist and ESP ®
trailer stabilisation are
available again. Display messages
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Display messages
Possible causes/consequences and
X
X Solutions G
Risk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
*, hill start assist and ESP ®
trailer
stabilisation are unavailable due to undervoltage. The d
warning lamp also lights 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. ! ABS and
ESP inop-
erative
See Own-
er's Man-
ual
G
Risk of accident
ABS, ESP ®
, BAS, PRE-SAFE ®
*, hill start assist and ESP ®
trailer
stabilisation are unavailable due to a malfunction. The d
warning lamp also lights 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. # The battery is not being charged. A warning tone also sounds.
Possible causes are:
R
a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely, paying attention to
road and traffic conditions and leave the engine running.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the V-belt is torn:
! Do not continue driving. The engine could otherwise over-
heat.
X Switch off the engine.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Visit a qualified specialist workshop. 184 Display
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Display messages
Possible causes/consequences and
X
X Solutions # a
with 4
buttons:
Check
brake wear
a with
12 buttons:
Check
brake wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. J Check
brake
fluid
level
G
Risk of accident
There is insufficient brake fluid in the brake fluid reservoir. In
addition, the Jindicator lamp in the instrument cluster
lights 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 con-
tinue driving under any circumstances.
X Consult a qualified specialist workshop.
Do not top up the brake fluid. This will not rectify the fault. J a
with 4
buttons:
Release
park.
brake
a with
12 buttons:
Release
parking
brake You are driving with the parking brake applied. A warning tone
also sounds.
X
Release the parking brake. J EBV, ABS,
ESP inop-
erative
See Own-
er's Man-
ual
G
Risk of accident
EBV (electronic brake force distribution), ABS, ESP ®
, BAS,
PRE-SAFE ®
*, hill start assist and ESP ®
trailer stabilisation are
unavailable due to a malfunction. In addition, the dwarn-
ing lamp in the instrument cluster lights up and a warning tone
sounds.
The brake system continues to function normally, but without
the functions listed above.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. Display
messages
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Display messages
Possible causes/consequences and
X
X Solutions b a
with 4
buttons:
Left
dipped
beam
or
Right
dipped
beam
a with
12 buttons:
Left
dipped
beam
or
Right
dipped
beam The left-hand or right-hand dipped-beam headlamp is faulty.
X
Halogen headlamps: replace the bulb (Ypage 217).
X Bi-xenon headlamp*: visit a qualified specialist workshop.b a
with 4
buttons:
Trailer
left turn
sig.
or
Trailer
rt. turn
sig.
a with
12 buttons:
Trailer
left turn
sig.
or
Trailer
rt. turn
sig. The left-hand or right-hand trailer turn signal lamp is faulty.
X
Change the bulb. b a
with 4
buttons:
Trailer
brake lamp
a with
12 buttons:
Trailer
brake lamp The trailer brake lamp is faulty.
X
Change the bulb. 188 Display
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Display messages
Possible causes/consequences and
X
X Solutions b a
with 4
buttons:
Front left
turn sig-
nal
or
Front
right turn
signal
a with
12 buttons:
Front left
turn sig-
nal
or
Front
right turn
signal The front left-hand or right-hand turn signal is faulty.
X
Change the bulb ( Ypage 217). b a
with 4
buttons:
Third
brake lamp
a with
12 buttons:
Third
brake lamp The third brake lamp is faulty. The display message will only
appear if all LEDs have failed.
X
Visit a qualified specialist workshop. b a
with 4
buttons:
Tail/brake
lamp, left
or
Tail/brake
lamp,
right
a with
12 buttons:
Left-hand
tail lamp/
brake lamp
or
Right-hand
tail lamp/
brake lamp The left-hand or right-hand tail lamp/brake lamp is faulty.
X
Change the bulb ( Ypage 217). Display
messages
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Warning and indicator lamps in the instrument cluster
Problem
Possible causes/consequences and
X
X Solutions !
The yellow ABS
warning lamp
comes on while
the engine is
running. G
Risk of accident
ABS (Anti-lock Brake System) is deactivated due to a fault. There-
fore, ESP ®
(Electronic Stability Program), BAS (Brake Assist), PRE-
SAFE ®
*, hill start assist and ESP ®
trailer stabilisation are also
deactivated.
The brake system continues to function normally, but without
electronic support. Therefore, the wheels could lock if you brake
hard.
X Drive on carefully.
X Observe the additional messages in the multi-function display
(Y page 176).
X Visit a qualified specialist workshop. d
The yellow ESP ®
warning lamp
flashes while the
vehicle is in
motion. G
Risk of accident
ESP ®
or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control* is switched off.
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 53) d
The yellow ESP ®
warning lamp
flashes while the
vehicle is in
motion. At least one wheel is spinning and ETS (Electronic Traction Sys-
tem) is deactivated to prevent the brakes on the drive wheels
overheating.
X
Observe the additional messages in the multi-function display
(Y page 176).
ETS switches back on again as soon as the brakes have cooled
down. The display message disappears and the dwarning
lamp goes out. d
The yellow ESP ®
warning lamp is
lit while the
engine is run-
ning. G
Risk of accident
ESP ®
is deactivated. ESP ®
and ESP ®
trailer stabilisation will not
stabilise the vehicle if it starts to skid or if a wheel starts to spin.
X Reactivate ESP ®
.
Exceptions: (Y page 53)
X Adapt your driving style to suit the road and weather conditions. Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions d
The yellow ESP ®
warning lamp is
lit while the
engine is run-
ning. In addition,
a message
appears in the
multi-function
display. G
Risk of accident
ESP ®
is unavailable due to a malfunction. ESP ®
and ESP ®
trailer
stabilisation will not stabilise the vehicle if it starts to skid or if a
wheel starts to spin.
X Observe the additional messages in the multi-function display
(Y page 176).
X Drive on carefully.
X Visit a qualified specialist workshop. 6
The red SRS
warning lamp is
lit while the
engine is run-
ning. G
Risk of injury
There is a malfunction 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 a qualified specialist workshop immediately. J
The red brake
system warning
lamp comes on
while you are
driving. A warn-
ing 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. J
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 a qualified specialist workshop immediately.
X Observe the additional messages in the multi-function display
(Y page 176).
Do not top up the brake fluid. This will not rectify the fault. ?
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 a qualified specialist workshop. 202 TroubleshootingPractical advice
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Warning tones
Problem
Possible causes/consequences and
X
X Solutions 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 55). You hear a warning
tone. A message appears in the multi-function display.
X
See the explanations for the display message (Y page 176). You are driving with the parking brake applied.
X
Release the parking brake. The lights are still switched on when you leave the vehicle.
X
Turn the light switch to $orc.
or
X If the rear foglamp is switched on: press the light switch in to
the stop. G
Risk of injury
The driver or front passenger has not fastened their seat belt
X Fasten your seat belt (Y page 70). Accident
Problem
Possible causes/consequences and
X
X Solutions Fuel is leaking from the
vehicle.
G
Risk of fire
The fuel line or the fuel tank has been damaged. The leaking fuel
creates a risk 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 a risk of fire or explosion.
X Consult a qualified specialist workshop. You are unable to
determine the extent of
the damage.
X
Consult a qualified specialist workshop. You cannot detect any
damage.
X
Start the engine as normal. Troubleshooting
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