
Problem Possible causes/consequences and
0050 Solutions0025
The yellow ABS
warning
lamp is lit while the
engine is running. ABS is temporarily unavailable. BAS, ESP
®
, EBD (electronic brake
force distribution), the HOLD function, hill start assist, ESP ®
trailer
stabilization and the adaptive brake lights, for example, are
therefore also deactivated.
Possible causes are:
R Self-diagnosis is not yet complete.
R The on-board voltage may be insufficient.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is a risk of an accident.
X Carefully drive a suitable distance making slight steering
movements at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop. Warning and indicator lamps in the instrument cluster
251
On-board computer and displays Z

Problem Possible causes/consequences and
0050 Solutions0025
The yellow ABS
warning
lamp is lit while the
engine is running. A
warning tone also
sounds. EBD is malfunctioning. Therefore, ABS, BAS, ESP
®
, the HOLD
function, hill start assist,
the adaptive brake lights and ESP ®
trailer
stabilization are also not available, for example.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop. 0025
The yellow ABS
warning
lamp is lit while the
engine is running. You have engaged the differential locks. ABS is deactivated.
X
Disengage the differential locks.
Subsequently ABS is reactivated. 0027 (USA only)
004D (Canada only)
00E500BB0025
The yellow brake
warning lamp, the
yellow ESP
®
and
ESP ®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running. ABS and ESP
®
are malfunctioning. Therefore,
BAS, EBD, the HOLD
function, hill start assist, the adaptive brake lights and ESP ®
trailer
stabilization, for example, are also not available.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop.252
Warning and indicator lamps in the instrument cluster
On-board computer and displays

Problem Possible causes/consequences and
0050 Solutions00E500BB
The yellow ESP
®
and
ESP ®
OFF warning
lamps are lit while the
engine is running. ESP
®
, BAS, the HOLD function, hill start assist and ESP ®
trailer
stabilization are temporarily unavailable.
BAS and the adaptive brake lights may also have failed.
Self-diagnosis is not yet complete.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational,
ESP®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance making slight steering
movements at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit a qualified specialist workshop. 00BB
The yellow ESP
®
OFF
warning lamp is lit
while
the engine is running. You have engaged the differential locks. ABS, ESP
®
, 4ETS and BAS
have been deactivated.
X Disengage the differential locks.
ESP ®
, 4ETS and BAS are subsequently reactivated.
X Observe the additional display messages in the multifunction
display.254
Warning and indicator lamps in the instrument cluster
On-board computer and displays

Problem Possible causes/consequences and
0050 Solutions00AC
The red coolant
warning lamp comes
on
while the engine is
running. The coolant level is too low.
!
Avoid making long
journeys
with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be
malfunctioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Apply the parking brake.
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 291).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the coolant temperature is
below 248 ‡ (120
†). Otherwise, the engine could be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-start driving. 00AC
The red coolant
warning lamp comes
on
while the engine is
running.
A warning tone
also sounds. The coolant temperature has exceeded 248 ‡ (120 †). The
airflow
to the
engine
radiator may be blocked or the coolant level
may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when
your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury. Warning and indicator lamps in the instrument cluster
257
On-board computer and displays Z

Problem Possible causes/consequences and
0050 SolutionsX
Observe the additional display messages in the multifunction
display.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Y page 156).
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and add coolant, observing the warning
notes (Y page 291).
X If you need to add coolant more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X At coolant temperatures below 248 ‡ (120 †),
drive to the next
qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-start driving. Driving systems
Problem Possible causes/consequences and
0050 Solutions00BA
The red distance
warning lamp lights up
while the vehicle is in
motion.
The distance to the vehicle in front is too small for the speed
selected.
X
Increase the distance. 00BA
The red distance
warning lamp lights up
while the vehicle is in
motion. A warning
tone
also sounds. You are approaching a vehicle or a stationary obstacle in your line
of travel at too high 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.
Further information on DISTRONIC PLUS ( Y page 177).258
Warning and indicator lamps in the instrument clusterOn-board computer and displays

If the rear bench seat is not occupied:
X
Insert the belt tongue on the outer seat
belts into the buckle of opposite seat
belt 0043.
X Secure the load with sufficiently strong and
wear-resistant tie downs.
X Pad sharp edges for protection. Stowage areas
Stowage space
Important safety notes G
WARNING
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
storing objects in the vehicle. Put luggage or
cargo in the cargo compartment if possible.
Do not pile luggage or cargo higher than the
seat backrests.
Keep compartment lids closed. This will help
to prevent stored objects from being thrown
about and injuring vehicle occupants during
R braking
R vehicle maneuvers
R an accident
Stowage compartments in the front Glove box X
To open: pull handle 0043 and open glove box
flap 0044.
X To close: fold glove box flap 0044 upwards
until it engages. 0047
Glove box unlocked
0048 Glove box locked
X To lock:(Y page 70) insert the mechanical
key into the lock
and turn it 90° clockwise
to position 0048.
X To unlock:(Y page 70) insert the
mechanical key into the
lock and turn it 90°
counter-clockwise to position 0047.
i The glove box can only be locked and
unlocked using the mechanical key.
Stowage compartment/telephone
compartment under the armrest/in the
center console 0043
Small stowage compartment
0044 Release button for the armrest Stowage areas
263
Stowage and features Z

Stowage compartment/telephone
compartment under the armrest
X
To open: press button 0044.
X Fold up armrest.
i In the stowage compartment, there is a
stowage tray.
X To close: fold the armrest down.
The armrest engages audibly.
Stowage space in the rear Stowage pockets
G
WARNING
Storage bags are intended for storing light-
weight items only.
Heavy objects, objects with sharp edges or
fragile objects may not be transported in the
storage bag. In an accident, during hard
braking, or sudden maneuvers,
they could be
thrown around inside the vehicle and cause
injury to vehicle occupants.
Storage bags cannot protect transported
goods in the event of an accident.
The stowage pockets are located on the rear
side of the front seats. Stowage nets
G
WARNING
Stowage nets are only intended for
transporting light loads such as road maps,
mail, etc.
Do not use stowage nets to transport heavy,
bulky, sharp-edged or fragile objects. In an
accident, during hard braking or during a
change of direction, they could be thrown
around inside the vehicle and cause injury to
vehicle occupants.
Stowage nets cannot protect
the transported
loads in the event of an accident.
The stowage net is in the front-passenger
footwell. Cargo compartment enlargement
Important safety notes G
WARNING
Always lock the seat backrest in its upright
position when the rear seat bench is
occupied, or the extended
cargo volume is not
in use.
Check for secure locking by pushing and
pulling on the seat backrest.
In an accident, during hard braking or sudden
maneuvers, loose items will be thrown around
inside the vehicle. This can cause injury to
vehicle occupants unless the items are
securely fastened in the vehicle.
To help avoid personal injury during a collision
or sudden maneuver, exercise care when
transporting cargo. G
WARNING
Failure to assure that the seat bench and seat
backrests are locked into place could result
in an increased chance of injury in an
accident.
Never place hands under seat or near any
moving parts while a seat is being adjusted.
For safety reasons, the rear seat bench must
only be adjusted when the vehicle is
stationary.
Never drive a vehicle with the tailgate open.
Deadly carbon monoxide (CO) gases may
enter vehicle interior resulting in
unconsciousness and death.
! Ensure that you remove all containers
from the cup holder in the rear before
folding the seat backrest and the seat
cushion of the rear bench seat forwards.
The rear bench seat is split symmetrically.
The left-hand and right-hand rear seats can
be folded down to increase the cargo
compartment capacity. The following
changes are possible:
R fold the seat backrests forward
R fold the rear bench seat back fully.264
Stowage areas
Stowage and features

Folding the rear bench seat forward
X
Fold rear seat backrest (Y page 265)
forwards.
X Pull catch 0043 in the direction of the arrow.
The corresponding rear bench seat is
released.
X Fold rear bench seat 0044 forwards. 0044
Rear bench seat folded forward
Folding the rear bench seat into an
upright position G
WARNING
Make sure that the rear bench seat and front
seat backrest are correctly engaged in
position.
If the seat backrests or rear bench seat are
not fully engaged and the following occurs:
R sharp braking
R a sudden change of direction
R an accident
the seat backrests or
rear bench seat may fold
forwards and instead of being restrained by
the seats as intended you could be injured by them. Occupants could then also be injured
in the event of an accident, e.g. by objects
being thrown forwards from the cargo
compartment.
X Fold the rear bench seat back.
The seat catch engages audibly.
X Fold the backrest backwards
(Y page 265).
X Install the head restraints (Y page 88). Securing cargo
Important safety notes G
WARNING
Distribute the load on the cargo tie down rings
evenly.
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
Please observe the loading guidelines.
Observe the following notes on securing
loads:
R secure the load using the cargo tie-down
rings.
R do not use elastic straps or nets to secure
a load, as these are only intended as an
anti-slip protection for light loads.
R do not route tie-downs across sharp edges
or corners.
R pad sharp edges for protection.
R only use tie downs that have been checked
in accordance with applicable standards,
e.g. lashing nets or lashing straps.
R fill the spaces between the load and the
cargo compartment walls and the wheel
mountings in a form-locking way. Only use
dimensionally stable transportation aids
for this, such as chocks, wooden fixings or
padding.266
Stowage areas
Stowage and features