Display messages
Possible causes/consequences and
0050
0050Solutions Front
Front
Passenger
Passenger Air‐
Air‐
bag Enabled See
bag Enabled See
Operator's Manual Operator's Manual The front-passenger front air bag is enabled during the journey,
although:
R a child, a small adult or an object weighing less than the system's
weight threshold is located on the front-passenger seat
or
R the front-passenger seat is unoccupied
The system may detect objects or forces applying additional weight on
the seat.
G WARNING
The front-passenger front air bag may deploy unintentionally.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Switch the ignition off.
X Open the front-passenger door.
X Remove the child and the child restraint system from the front-
passenger seat.
X Make sure that there are no objects on the seat adding to the
weight.
The system might otherwise detect the additional weight and inter-
pret the seat occupant's weight as greater than it actually is.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
X Observe the PASSENGER AIR BAG indicator lamps in the center
console and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
R a self-diagnosis is carried out. The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps must light up simulta-
neously for approximately six seconds
R the PASSENGER AIR BAG OFF indicator lamp must then light up
and remain lit after the self-diagnosis. If the indicator lamp is on, OCS has deactivated the front-passenger front air bag
(Y page 52)
R the Front Passenger Airbag Enabled See Operator's
Front Passenger Airbag Enabled See Operator's
Manual Manual orFront Passenger Airbag Disabled See Opera‐
Front Passenger Airbag Disabled See Opera‐
tor's
tor's Manual
Manual display messages must not be shown on the mul-
tifunction display
X Wait for a period of at least 60 seconds until the necessary system
checks have been completed.
X Make sure that the display messages do not appear in the multi-
function display.
If these conditions are fulfilled, the front-passenger seat can be occu-
pied again. Whether the PASSENGER AIR BAG OFF or ON indicator
lamp remains lit or goes out depends on how OCS classifies the occu- pant.
If the conditions are not fulfilled, the system is not operating correctly. Display
messages
255On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions X
Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System, see (Y page 52). Lights
i Vehicles with LED bulbs in the light clusters:
The display message for the corresponding lamp only appears when all of the LEDs in the lamp
have failed. Display messages
Possible causes/consequences and
0050 0050Solutions 0049
Check Left Low Beam Check Left Low Beam
(Example) The bulb in question is malfunctioning.
X
Visit a qualified specialist workshop.
or X Check whether you are permitted to replace the bulb yourself
(Y page 115). 0049
Active Headlamps Active Headlamps
Inoperative Inoperative The active light function is faulty.
X Visit a qualified specialist workshop. 0049
Intell. Light Sys‐ Intell. Light Sys‐
tem Inoperative tem Inoperative The Intelligent Light System is faulty. The lights remain available with-
out the Intelligent Light System.
X Visit a qualified specialist workshop. 0049
Malfunction See Malfunction See
Operator's Manual Operator's Manual The exterior lighting is malfunctioning.
X Visit a qualified specialist workshop. Vehicles with trailer tow hitch: a fuse may have blown.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Check the fuses (Y page 349).
X If necessary, replace the blown fuse. Observe the warning notes.
If the multifunction display still shows the display message:
X Visit a qualified specialist workshop. 0049
Malfunction See Malfunction See
Operator's Manual Operator's Manual The exterior lighting is malfunctioning.
X Visit a qualified specialist workshop. 0049
Auto Lamp Function Auto Lamp Function
Inoperative Inoperative The light sensor is defective.
X Visit a qualified specialist workshop. 256
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
0050
0050Solutions 00AC
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
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.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Wait until the engine has cooled down.
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 display message goes out and
the coolant temperature is below 248 ‡ (120 †). Otherwise, the
engine could be damaged.
X Pay attention to the coolant temperature gauge.
If the temperature increases again: X Visit a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). 003D
See Operator's Man‐ See Operator's Man‐
ual ual The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
! Do not continue driving. The engine could otherwise overheat.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Consult a qualified specialist workshop. 258
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
0050
0050Solutions 003D
Stop Vehicle See Stop Vehicle See
Operator's Manual Operator's Manual The battery is no longer being charged and the condition of charge is
too low.
A warning tone also sounds.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Observe the instructions in the 003DSee Operator's Manual See Operator's Manual
display message.
X Consult a qualified specialist workshop. 00B2
Check Check
Engine
Engine Oil
OilAt
At
Next Refueling
Next Refueling The engine oil level has dropped to the minimum level.
A warning tone also sounds.
! Avoid long journeys with too little engine oil. The engine will oth-
erwise be damaged.
X Check the oil level when next refueling, at the latest (Y page 323).
X If necessary, add engine oil (Y page 323).
If the engine oil needs topping up more often: X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes- benz.com. 00B2
Check Engine Oil Check Engine Oil
Level (Add 1 quart) Level (Add 1 quart) Mercedes-AMG vehicles: the engine oil level is too low.
! Avoid long journeys with too little engine oil. The engine will oth-
erwise be damaged.
X Check the oil level when next refueling, at the latest (Y page 323).
X If necessary, add engine oil (Y page 323).
If the engine oil needs topping up more often: X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes- benz.com. 00B2
Engine Oil Level Engine Oil Level
Low Stop Vehicle Low Stop Vehicle
Turn Engine Off Turn Engine Off Mercedes-AMG vehicles: the engine oil level is too low.
There is a risk of engine damage.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Check the engine oil level (Y page 323).
X If necessary, add engine oil (Y page 323).00B6
Fuel Level Low Fuel Level Low The fuel level has dropped into the reserve range.
X Refuel at the nearest gas station. Display
messages
259On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions 00F6
Different. Lock Different. Lock
Sys. Malfunction Sys. Malfunction The differential lock is faulty.
X Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop. 00F6
Different. Locking Different. Locking
Sys. Cooling Down Sys. Cooling Down
Please Wait Please Wait The differential lock is too hot and has been disengaged.
X Drive on carefully.
X Allow the differential lock to cool down.
The differential lock re-engages as soon as it has cooled down. LOW RANGE Stop LOW RANGE Stop
Apply Parking Brake Apply Parking Brake A gearshift process has been canceled. LOW RANGE is in the neutral
position. There is no connection between the engine and the drive
wheels.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the electric parking brake. Do not continue driving under any
circumstances.
X Repeat the gearshift process. LOW RANGE Malfunc‐
LOW RANGE Malfunc‐
tion tion
To
ToPark,
Park, Apply
Apply
Brake
Brake LOW RANGE is malfunctioning.
X Do not drive at speeds above 31 mph (50 km/h).
X When parking, secure the vehicle against rolling away (Y page 156).
X Visit a qualified specialist workshop. LOW RANGE Max.
LOW RANGE Max.
Speed 25 mph Speed 25 mph You have exceeded the maximum speed for the gearshift process.
X Drive more slowly.
The gear change is made. LOW RANGE Max. LOW RANGE Max.
Speed 31 mph Speed 31 mph You have exceeded the maximum speed for the gearshift process.
X Drive more slowly.
The gear change is made. LOW RANGE Shift to LOW RANGE Shift to
Position N Briefly Position N Briefly You have reduced the vehicle speed, but the automatic transmission
is not in position 005C.
X Briefly shift the automatic transmission to 005C.LOW RANGE Shifting LOW RANGE Shifting
Canceled Please Canceled Please
Reactivate Reactivate The gearshift process has been canceled.
X Repeat the gearshift process. 00C6
Inoperative Inoperative DSR (Downhill Speed Regulation) is deactivated due to a malfunction.
X Have DSR checked at a qualified specialist workshop. Display
messages
263On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions Traffic
Traffic
Sign
Sign Assist
Assist
Currently Unavaila‐
Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Traffic Sign Assist is temporarily inoperative.
Possible causes are:
R the windshield in the camera's field of vision is dirty
R visibility is impaired due to heavy rain, snow or fog
X Clean the windshield.
If the system detects that the camera is fully operational, the display message disappears.
Traffic Sign Assist is operational again. Traffic Traffic
Sign
Sign Assist
Assist
Inoperative
Inoperative Traffic Sign Assist is malfunctioning.
X Visit a qualified specialist workshop. 00D9
Off Off The HOLD function is deactivated. The vehicle is skidding.
A warning tone also sounds.
X Reactivate the HOLD function later (Y page 182).Lane Lane
Keeping
Keeping Assist
Assist
Currently Unavaila‐
Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual orActive
Active
Lane
Lane Keeping
Keeping Assist
Assist
Currently Unavaila‐
Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Lane Keeping Assist or Active Lane Keeping Assist is deactivated and
temporarily inoperative.
Possible causes are:
R the windshield in the camera's field of vision is dirty
R visibility is impaired due to heavy rain, snow or fog
R there have been no lane markings for an extended period
R the lane markings are worn away, dark or covered up, e.g. by dirt or
snow
When the causes stated above no longer apply, the display message
disappears.
Lane Keeping Assist or Active Lane Keeping Assist is operational
again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Clean the windshield. Lane Lane
Keeping
Keeping Assist
Assist
Inoperative
Inoperative or
Active
Active Lane
LaneKeeping
Keeping
Assist Inoperative
Assist Inoperative Lane Keeping Assist or Active Lane Keeping Assist is malfunctioning.
X Visit a qualified specialist workshop. 264
Display
messagesOn-board computer and displays
Display messages
Possible causes/consequences and
0050
0050Solutions Blind Spot Assist
Blind Spot Assist
Currently Unavaila‐ Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual
orActive
Active
Blind Spot Assist
Blind Spot Assist
Currently Unavaila‐ Currently Unavaila‐
ble See Operator's ble See Operator's
Manual Manual Blind Spot Assist or Active Blind Spot Assist is temporarily inoperative.
Possible causes are:
R the radar sensor system is outside the operating temperature range
R the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
The yellow 0063indicator lamps also light up in the exterior mirrors.
When the causes stated above no longer apply, the display message
disappears.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Restart the engine. Blind Spot Assist Blind Spot Assist
Not Available When Not Available When
Towing a Trailer Towing a Trailer
See Operator's Man‐ See Operator's Man‐
ual ual
orAct. Blind
Act. Blind
Spot Asst. Not
Spot Asst. Not
Available When Tow‐ Available When Tow‐
ing a Trailer See ing a Trailer See
Operator's Manual Operator's Manual Blind Spot Assist or Active Blind Spot Assist is deactivated while tow-
ing a trailer.
You have established the electrical connection between the trailer and
your vehicle.
X Press 0076on the steering wheel to confirm the display message. Blind Spot Assist Blind Spot Assist
Inoperative Inoperative
or
Active Blind Spot
Active Blind Spot
Assist Inoperative Assist Inoperative Blind Spot Assist or Active Blind Spot Assist is malfunctioning.
The yellow
0063indicator lamps also light up in the exterior mirrors.
X Visit a qualified specialist workshop. Active Parking Active Parking
Assist Canceled Assist Canceled The driver's door is open.
X Repeat the parking gap measurement and parking process with the
driver's door closed. You have inadvertently touched the multifunction steering wheel while
steering intervention was active.
X While steering intervention is active, make sure that the multifunc-
tion steering wheel is not touched unintentionally. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 191).Active Parking
Active Parking
Assist Inoperative Assist Inoperative Parking Assist PARKTRONIC is malfunctioning or faulty.
X Follow the instructions and helpful hints in the "Problems with
Parking Assist PARKTRONIC" section (Y page 191).
If the multifunction display still shows the display message:
X Visit a qualified specialist workshop. Display
messages
265On-board computer and displays Z
Display messages
Possible causes/consequences and
0050
0050Solutions Active Parking Assist is unavailable or faulty.
X Switch off the ignition and restart the engine.
If Active Parking Assist continues to be unavailable (the 005Dsymbol
does not appear on the multifunction display):
X Visit a qualified specialist workshop. Active Parking
Active Parking
Assist Finished Assist Finished The vehicle is parked. A warning tone also sounds.
The display message disappears automatically. Active Distance
Active Distance
Assist Off Assist Off Active Distance Assist DISTRONIC was deactivated.
If a warning tone also sounds, the Active Distance Assist DISTRONIC
has deactivated automatically (Y page 171).Active Distance Active Distance
Assist Assist
Now
NowAvailable
Available Active Distance Assist DISTRONIC is operational again after having
been temporarily unavailable. You can now reactivate Active Distance
Assist DISTRONIC (Y page 171).Active Distance Active Distance
Assist Currently Assist Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual Active Distance Assist DISTRONIC is temporarily inoperative.
Active Steering Assist is also temporarily inoperative.
Possible causes are:
R the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic 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 too low
A warning tone also sounds.
When the causes stated above no longer apply, the display message
disappears.
Active Distance Assist DISTRONIC is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 156).
X Restart the engine. Active Distance Active Distance
Assist Inoperative Assist Inoperative Active Distance Assist DISTRONIC is faulty.
The following may have also failed:
R Active Brake Assist
R Active Brake Assist with cross-traffic function
A warning tone also sounds.
X Visit a qualified specialist workshop. Act. Distance Act. Distance
Assist Suspended Assist Suspended You have depressed the accelerator pedal. Active Distance Assist
DISTRONIC is no longer controlling the speed of the vehicle.
X Remove your foot from the accelerator pedal. 266
Display
messagesOn-board computer and displays