Display messages
Possible causes/consequences and
X
X Solutions Wheel sen‐
sor(s) missing
Vehicles with tyre pressure monitor*: the tyre pressure sen-
sor signal for one or more of the tyres is missing. The pressure
of the affected tyre is not displayed in the instrument cluster.
X
Have the faulty tyre pressure sensor replaced at a qualified
specialist workshop. PRE-SAFE inopera‐
tive See
Owner's
Manual
G
Risk of injury
Important functions of PRE-SAFE ®
have failed. All other occu-
pant safety systems, e.g. airbags, remain available.
X Visit a qualified specialist workshop. PRE-SAFE Functions
currently
limited
See Own‐
er's Man‐
ual
G
Risk of accident
PRE-SAFE ®
Brake* is temporarily inoperative if:
R the Distronic Plus* cover in the radiator grille is dirty.
R the sensors in the bumpers are dirty.
R its function is impaired due to heavy rain or snow.
R the radar sensor system is temporarily inoperative, e.g. due
to electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is insufficient.
R E 63 AMG: you deactivate ESP ®
.
PRE-SAFE ®
Brake *is operational again and the display mes-
sage disappears when:
R the dirt (e.g. slush) drops away while you are driving.
R the system detects that the sensors are fully available
again.
R the system is within the operating temperature range.
R E 63 AMG: you reactivate ESP ®
.
If the display message continues to be shown:
X Clean the Distronic Plus* cover in the radiator grille
(Y page 243).
X Clean the bumpers (Y page 243).
X Restart the engine.
X Wait until the battery is charged sufficiently. 260
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Display messages
Possible causes/consequences and
X
X Solutions h Tyre pres‐
sure Cau‐
tion,
tyre malf.
G
Risk of accident
Vehicles with the tyre pressure monitor*: the pressure is
dropping rapidly in one or more of the tyres. A warning tone
also sounds.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Repair the faulty tyre or replace the wheel ( Ypage 309). h Tyre pres‐
sure
Check
tyre(s)
G
Risk of accident
Vehicles with tyre pressure monitor*: the tyre pressure has
dropped significantly in one or more of the tyres. A warning
tone also sounds.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Correct the tyre pressure (Y page 225).
X If necessary, repair any defective tyres or change the wheel
(Y page 309). & inopera‐
tive Bat‐
tery low The on-board voltage is too low. The auxiliary heating/venti-
lation* has switched off or cannot be switched on.
X
Drive for a longer distance.
The battery is being charged. The auxiliary heating/venti-
lation *can be reactivated as soon as there is sufficient on-
board voltage. & inopera‐
tive
Refuel
vehicle The fuel level in the fuel tank is too low. The auxiliary heat-
ing* cannot be switched on.
X
Refuel at the nearest filling station. & inopera‐
tive See
Owner's
Man.
The auxiliary heating
*is temporarily malfunctioning or is
defective.
X When the vehicle is on a level surface and the engine has
cooled down, make up to four attempts to switch on the
auxiliary heating*, waiting several minutes between each
attempt.
X If the auxiliary heating* does not switch on, visit a qualified
specialist workshop. 276
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Warning and indicator lamps in switches, buttons and exterior mirrors
Problem
Possible causes/consequences and
X
X Solutions The seat ventilation*
has switched off pre-
maturely or cannot be
switched on. The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e.g. rear window
heating or interior lighting. The seat heating* has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e.g. rear window
heating or interior lighting. The steering wheel
heating* indicator lamp
on the lower left lever of
the steering column is
flashing. The on-board voltage is too low, because too many consumers are
switched on. The steering wheel heating* has switched off auto-
matically.
X
Switch off consumers that are not required, e.g. rear window
heating or interior lighting.
Once the battery is sufficiently charged, the steering wheel
heating* will switch back on automatically. When you press the
¿
button on the
control panel for
Thermatic 2-zone auto-
matic climate control/
Thermotronic luxury 3-
zone automatic climate
control*, the indicator
lamp in the button
flashes three times or
remains off. The cool-
ing system cannot be
switched on. Cooling has been deactivated due to a malfunction.
X Visit a qualified specialist workshop. The rear-window heat-
ing has switched off
prematurely or cannot
be switched on. The on-board voltage is too low, because too many consumers are
switched on.
X
Switch off consumers that are not required, e.g. seat heating*
or interior lighting.
Once the battery is sufficiently charged, the rear window heating
will switch back on automatically. Troubleshooting
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Problem
Possible causes/consequences and
X
X Solutions Vehicles with the ECO
Start/Stop function:
you have started the
engine using the key.
The indicator lamp in
the ECO Start/Stop
function button does
not light up or goes out
again after a short time. You have deactivated the ECO Start/Stop function.
X
Activate the ECO Start/Stop function again (Y page 109). The ECO Start/Stop function is not available due to a fault.
X If the indicator lamp fails persistently, consult a qualified work-
shop. Warning and indicator lamps in the instrument cluster
Problem
Possible causes/consequences and
X
X Solutions !
The yellow ABS
warning lamp is
lit while the
engine is run-
ning. G
Risk of accident
ABS (Anti-lock Brake System) is deactivated due to a fault. For this
reason, ESP ®
(Electronic Stability Program), BAS (Brake Assist),
BAS PLUS* (Brake Assist PLUS), PRE-SAFE ®
, PRE-SAFE ®
Brake*,
the HOLD function, hill start assist and ESP ®
trailer stabilisation
are also deactivated, for example.
The brake system continues to function normally, but without the
functions listed above. Therefore, the wheels could lock if you
brake hard.
ATTENTION ASSIST is deactivated.
X Observe the additional messages in the multi-function display
(Y page 251).
X Drive on carefully.
X Visit a qualified specialist workshop. ·
The red distance
warning lamp*
lights up while
the vehicle is in
motion. G
Risk of accident
The distance to the vehicle in front is too small for the speed
selected.
X Increase the distance. ·
The red distance
warning lamp*
lights up while
the vehicle is in
motion. A warn-
ing tone also
sounds. G
Risk of accident
You are approaching a vehicle in front at too great a speed
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action. Troubleshooting
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Problem
Possible causes/consequences and
X XSolutions ·
The red distance
warning lamp*
lights up while
the vehicle is in
motion. A warn-
ing tone also
sounds. G
Risk of accident
Distronic Plus* has detected a stationary obstacle in your line of
travel. The vehicle will not be braked automatically.
X Be prepared to brake immediately.
X Pay careful attention to the traffic situation. You may have to
brake or take evasive action. ä
å
!
The yellow ESP
®
and ESP ®
OFF
warning lamps
and the yellow
ABS warning
lamp are lit while
the engine is
running. G
Risk of accident
ABS and ESP ®
are faulty. Other systems, e.g. BAS, BAS PLUS*,
PRE-SAFE ®
, PRE-SAFE ®
Brake*, the HOLD function, hill start
assist and ESP ®
trailer stabilisation, are also unavailable due to a
malfunction. The brake system continues to function normally, but
without the functions listed above. Therefore, the wheels could
lock if you brake hard, for example.
ATTENTION ASSIST is deactivated.
X Observe the additional messages in the multi-function display
(Y page 251).
X Drive on carefully.
X Visit a qualified specialist workshop. ä
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 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: all models, except E 63 AMG (Y page 61), E 63 AMG
(Y page 62). å
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 a wheel starts to spin.
X Reactivate ESP ®
.
Exceptions: all models, except E 63 AMG (Y page 61), E 63 AMG
(Y page 62).
X Adapt your driving style to suit the road and weather conditions. 282
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Problem
Possible causes/consequences and
X
X Solutions ì
E 63 AMG:
The yellow ESP ®
Sport warning
lamp lights up
while the engine
is running. G
Risk of accident
ESP ®
Sport is activated. ESP ®
only stabilises the vehicle in
extreme situations. ESP ®
intervention may not be able to provide
sufficient assistance in such situations and the vehicle may start
to skid.
X Reactivate ESP ®
.
Exceptions: (Y page 62) ä
å
The yellow ESP
®
and ESP ®
OFF
warning lamps
are lit while the
engine is run-
ning. G
Risk of accident
ESP ®
, BAS, BAS PLUS*, PRE-SAFE ®
, PRE-SAFE ®
Brake*, the
HOLD function, hill start assist, the adaptive brake lights and
ESP ®
trailer stabilisation are unavailable due to a malfunction.
ESP ®
will not stabilise the vehicle if it starts to skid or if a wheel
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 251).
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 yellow
reserve fuel
warning lamp
lights up while
the engine is
running. G
Risk of accident
The brake system is malfunctioning and the braking characteris-
tics may be affected.
X If the multi-function display shows a display message, please
observe this (Y page 251).
X Drive on carefully.
X Visit a qualified specialist workshop. Troubleshooting
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Problem
Possible causes/consequences and
X
X Solutions You have lost a key.
X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emer-
gency key element.
X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating* or inte-
rior lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 319).
or
X Jump-start the vehicle (Y page 323).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the key.
The steering lock is mechanically blocked.
44
X Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS
GO*. The key is in the
vehicle. A door is open. Therefore, the key cannot be detected as easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle using the key in the ignition lock. 44
Not vehicles with DIRECT SELECT selector lever. Troubleshooting
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X
Turn the wiper blades until they are parallel
to the wiper arms.
X Fold the wiper arms back onto the wind-
screen. Rear window wiper blade
G
Risk of injury
The wiper arm could be set in motion and
injure you if the windscreen wipers are
switched on.
Remove the key from the ignition lock before
replacing the wiper blade.
Removing X
Remove the key from the ignition lock.
X Fold wiper arm :away from the rear win-
dow until it engages.
X Position wiper blade ;at a right angle to
wiper arm :.
X Hold wiper arm :and press wiper
blade ;in the direction of the arrow until
it releases.
X Remove wiper blade ;.
Fitting X
Place the new wiper blade ;onto wiper
arm :.
X Hold wiper arm :and press wiper
blade ;in the opposite direction to the
arrow until it engages. X
Make sure that wiper blade ;is seated
correctly.
X Position wiper blade ;parallel to wiper
arm :.
X Fold wiper arm :back onto the rear win-
dow. Flat tyre
Flat tyre equipment variants
Your vehicle may be equipped with:
R a TIREFIT kit (Y page 250)
R a "Minispare" emergency spare
wheel* (Y page 250)
R the MOExtended run-flat sys-
tem* (Y page 318) Preparing the vehicle
i Vehicle preparation is not necessary on
vehicles with MOE tyres*.
X Stop the vehicle as far away as possible
from traffic on solid, non-slippery and level
ground.
X Switch on the hazard warning lamps.
X Firmly depress the parking brake.
X Vehicles with manual transmission:
engage first or reverse gear.
X Vehicles with automatic transmis-
sion*: move the selector lever/DIRECT
SELECT lever to P.
X All occupants must get out of the vehicle.
Make sure that they are not endangered as
they get out of the vehicle.
X Make sure that no one is near the danger
area whilst a wheel is being changed. Any-
one who is not directly assisting in the
wheel change should, for example, stand
behind the barrier.
X Switch off the engine. Flat tyre
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