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ABS
malfunction, trailer
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Risk of accident
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Malfunction in the
vehicle's brake system (the  indicator lamp lights up) and/or in the brake
system of the trailer/semitrailer (the
 indicator lamp
lights up).
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The anti-lock
braking system (ABS) might be deactivated.
The vehicle's
driving and braking characteristics may be impaired.
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Activate the
anti-lock braking system (ABS).
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If the malfunction
continues to be shown in the display:
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Have the brake
system checked at a qualified specialist
workshop.
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Operation
possibly restricted
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Risk of accident
-
Malfunction in the
vehicle's brake system (the indicator lamp lights up) and/or in the brake
system of the trailer/semitrailer (the
indicator lamp
lights up).
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The anti-lock
braking system (ABS) might be deactivated.
The vehicle's
driving and braking characteristics may be impaired.
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Activate the
anti-lock braking system (ABS).
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If the malfunction
continues to be shown in the display:
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Have the brake
system checked at a qualified specialist
workshop.
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Operation
possibly restricted
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Risk of accident
-
Malfunction in the
vehicle's brake system (the indicator lamp lights up) and/or in the brake
system of the trailer/semitrailer (the
indicator lamp
lights up).
-
The anti-lock
braking system (ABS) might be deactivated.
The vehicle's
driving and braking characteristics may be impaired.
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Activate the
anti-lock braking system (ABS).
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If the malfunction
continues to be shown in the display:
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Have the brake
system checked at a qualified specialist
workshop.
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Braking
characteristics may change
Visit
workshop soon
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Risk of accident
Malfunction in the
brake system of the trailer/semitrailer (the
indicator lamp
lights up). The vehicle's handling and braking characteristics may be impaired.
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The display message
consists of 2 parts. To see the 2nd part, press the
button.
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Have the brake
system checked at a qualified specialist
workshop.
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Brake
pads/linings completely worn
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The brake
pads/linings are worn down to the minimum thickness.
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Have the brake
pads/linings replaced at a qualified specialist
workshop.
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Vehicles with
Telligent® maintenance system:
You can find out
the axle on which the brake linings or pads are worn by accessing the
Service
info menu.
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Wheel
brake overloaded
Adapt
driving style
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The temperature of
one of the wheel brakes is too high. The wheel brake may overheat.
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The display message
consists of 2 parts. To see the 2nd part, press the
button.
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Drive with even
greater care.
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Engage a lower gear
and brake the vehicle using the continuous brake (engine brake/retarder) as
much as possible.
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Have the brake
system checked at a qualified specialist
workshop.
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Apply
parking brake
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Risk of accident
The parking brake
is not applied.
The parked vehicle
could roll away. This could endanger you and others.
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Apply the parking
brake.
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Vehicles with
programmable special module (PSM):
Risk of accident
Apply the parking
brake before engaging the power take-off. The vehicle could roll away. This
could endanger you and others.
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Apply the parking
brake before engaging the power
take-off.
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Condensation
in the compressed-air reservoir
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The condensation
level in the compressed-air reservoir is too high.
Even at
temperatures around freezing (0  ), frozen condensation in the
compressed-air reservoir can put the brake system out of
operation.
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Have the following
work done immediately at a qualified specialist workshop, e.g. a Mercedes-Benz
Service Centre:
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Bleed the
condensation from the compressed-air reservoir.
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Replace the
granulate cartridge of the compressed-air drier.
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Reset the
condensation message in the on-board computer
more.
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Risk of accident
The supply pressure
in the auxiliary consumers circuit has dropped below 5.5 bar.
The gears can no
longer be shifted correctly.
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Stop the vehicle as
soon as possible, paying attention to road and traffic conditions as you do
so.
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Apply the parking
brake.
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Let the engine run
until the display message goes out and the supply pressure has reached an
adequate level.
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Check the
compressed-air system for leaks if the fault occurs frequently
more.
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Have the
compressed-air brake system repaired at a qualified specialist
workshop.
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Coolant
temperature high 100 °C (example)
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The coolant
temperature reaches about 100 while driving.
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Reduce demand on
the engine.
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Make sure that the
air supply to the radiator is not
obstructed.
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Engine
protection: output reduced
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The coolant
temperature reaches about 100 while driving.
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Reduce demand on
the engine.
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Make sure that the
air supply to the radiator is not
obstructed.
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Output reduced
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Vehicles with a
natural gas engine: the temperature of the catalytic converter has reached
about 650 . Engine power output is
automatically reduced.
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Reduce demand on
the engine.
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Top up
the coolant soon.
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The coolant level
has dropped.
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Top up the coolant
soon
more.
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If the coolant
level drops again, have the coolant system checked for leaks at a qualified
specialist
workshop.
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5.0 l
Top up engine oil
(example)
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The engine oil
level is too low.
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Add the quantity of
oil shown in the display
more.
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If it is not
possible to add the quantity of oil shown, the vehicle may be driven for a
further 2,000 to 6,000 km, depending on the operating conditions, but at
most until the status indicator lights up in
red.
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Immobiliser
activated
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You cannot start
the engine.
You have made
several starting attempts using an invalid vehicle key. The immobiliser has
been activated.
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Use a valid vehicle
key or spare vehicle key.
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Mercedes-Benz
recommends that you always keep an easily accessible spare key with you for
emergencies.
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You cannot start
the engine.
The starter
batteries are discharged.
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Repeat the starting
procedure after approximately ten seconds.
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Note that
excessively long attempts to start the engine will drain the
battery.
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Have your vehicle
jump-started by another vehicle
more.
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Fault in the
electronic drive control system
The accelerator
pedal is inoperative; the engine is in emergency running mode.
Engine power output
is reduced.
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Stop the vehicle as
soon as the road and traffic conditions permit, apply the parking brake and
switch off the engine.
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Wait approximately
10 seconds and then restart the engine.
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If the engine is
still in emergency running mode: have the fault rectified at a qualified
specialist workshop, e.g. a Mercedes-Benz Service
Centre.
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Service in 4,000 km
(example)
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A service is due
soon.
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Plan maintenance
for the date
displayed.
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Service
due
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A service is
due.
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Have maintenance
work carried out at a qualified specialist
workshop.
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Service
now
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A service due date
has been significantly exceeded. There is a risk of damage to the vehicle or
its assemblies.
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Have maintenance
work carried out immediately at a qualified specialist
workshop.
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There are problems
with shifting in automatic transmission.
It is still
possible to drive the vehicle.
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Carefully continue
your journey.
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A specialist
workshop may be able to assist you in restricted continuation of your journey
if you supply the fault code. Display fault code
more.
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Have the automatic
transmission repaired at a qualified specialist
workshop.
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Fill up
with diesel
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The fuel level is
very low.
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Refill the fuel
tank
more.
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The display message
disappears.
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If the fuel tank is
not filled up, the message appears again when the engine is
started.
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Top up
with AdBlue
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The AdBlue has
dropped to the reserve level.
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Refill the AdBlue
tank
more.
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The display message
disappears.
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If the AdBlue tank
is not topped up, this message will be shown the next time the engine is
started.
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Fill
w.diesel/AdBlue
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The fuel has
dropped to the reserve level.
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Refill the fuel
tank
more. To avoid having to stop at a filling station again, fill
up the AdBlue tank at the same time.
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The display message
disappears.
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If the fuel and
AdBlue tanks are not topped up, this message will be shown the next time the
engine is started.
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Top up gas
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The gas supply
pressure has dropped to 40 bar.
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Fill up the gas
supply reservoir
more.
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If the gas supply
pressure has dropped to 15 bar, you may no longer be able to drive.
Emergency operating mode with gas cylinder
more.
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The display message
is activated when the vehicle leaves the factory. It can be deactivated at any
Mercedes-Benz Service Centre.
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Top up
washer fluid soon
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The fluid level in
the windscreen washer/headlamp cleaning system reservoir has dropped to
approximately 1 litre.
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Fill the windscreen
washer/headlamp cleaning system reservoir soon
more.
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Bulb/fuse
faulty
Check
bulb/fuse
(example)
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When switching on
the lights: bulb or fuse faulty for parking lamps, dipped-beam headlamps, tail
lamp or licence plate lamps, or faulty rear foglamp bulb.
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When braking: brake
lamp is faulty.
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When indicating a
turn: indicator lamp is faulty.
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After the
functional check of the instrument panel: the brake lights' fuse is
faulty.
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The display message
consists of 2 parts. To see the 2nd part, press the
button.
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Check the
corresponding fuse and replace if necessary
more.
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Check the
corresponding bulbs and replace if necessary
more.
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Brake
lamp, left: failure
(example)
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On
trailers/semitrailers with electronics complying with ISO 11992: the left
brake lamp on the trailer/semitrailer is faulty.
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Replace the
relevant bulb (see the operating instructions for the
trailer/semitrailer).
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button.
or 
switch repeatedly until the 
indicator lamp
flashes.
indicator lamp on the instrument panel lights up.
and 
buttons of the automatic transmission twice.