MERCEDES-BENZ GL-Class 2013 X166 Owner's Manual

Display messages Possible causes/consequences and
0001 Solutions
If these conditions are fulfilled, the front-passenger seat can be
occupied again .Whether the 00050006 indicator lamp remains lit
or goes out depends on how OCS classifies the occupant.
If the conditions are not fulfilled, the system is not operating
correctly.
X Visit a qualified specialist workshop immediately. Lights
i Display messages about LEDs:
This display message will only appearifa ll LEDs have failed.Displa
ymessages Possible causes/consequences and
0001 Solutions
0004
Check Left Cornering Light or
Check Right Cornering Light The left or right-hand cornering light is defective.
X
Chec kwhether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Left Low
Beam or
Check Right Low Beam The left or right-hand low-beam headlamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check
Trailer Left
Turn Signal or
Check Trailer Right Turn Signal The left or right-hand trailer turn signal lamp is defective.
X
Check whether you are permitted to change the bulb yourself.
or
X Visit a qualified specialist workshop. 0004
Check Rear Left
Turn Signal or
Check Rear Right Turn Signal The rear left-hand or rear right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. Display messages
299On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
0004
Check Front Left
Turn Signal or
Check Front Right
Turn Signal The front left-hand or front right-hand turn signal is defective.
X
Chec kwhether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Left Mirror
Turn Signal
or
Check Right Mirror Turn Signal The turn signal in the left-hand or right-hand exterior mirror is
defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check
Center Brake
Lamp The high-mounted brake lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Left Brake
Lamp or
Check Right Brake Lamp The left or right-hand brake lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Left Tail
and Brake Lamps or
Check Right Tail and Brake Lamps The left or right-hand tail lamp/brake lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Left High
Beam or
Check Right High Beam The left or right-hand high beam is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 300
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
0004
License Plate Lamp The lef
torright-hand license plate lamp is defective.
X Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Front Left
Parking Lamp
or
Check Front Right Parking Lamp The front left or front right parking or standing lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Backup Light The backup lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Front Left
Sidemarker Lamp
or
Check Front Right Sidemarker
Lamp The left or right front side marker lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check Left Tail
Lamp or
Check Right Tail Lamp The left or right-hand tail lamp is defective.
or
The rear left or right side marker lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. 0004
Check
Left Daytime
Running Light
or
Check Right Daytime Running
Light The left-hand or right-hand daytime running lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 133).
or
X Visit a qualified specialist workshop. Display messages
301On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
0004
Active Headlamps
Inoperative The active ligh
tfunction is defective.
X Visi taqualified specialist workshop. 0004
Malfunction See
Operator's Manual The exterior lighting is defective.
X
Visit a qualified specialist workshop. Vehicles with trailer tow hitch: a fuse may have blown.
X
Check the fuses (Y page 396).
X If necessary, replace the blown fuse. Observe the warning notes.
If the display message continues to be displayed:
X Visit a qualified specialist workshop. 0004
Auto
Lamp Function
Inoperative The light senso
ris defective.
X Visit a qualified specialist workshop. 0004
Switch Off Lights The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X
Turn the light switch to 0006.Adaptive Highbeam
Assist Inoperative Adaptive Highbeam Assist is faulty.
X
Visit a qualified specialist workshop. Adaptive Highbeam
Assist Currently
Unavailable See
Operator's Manual Adaptive Highbeam 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.
X Cleant he windshield.
If the system detects that the camera is fully operational again,
the Adaptive Highbeam Assist Now Available message is
displayed.
Adaptive Highbeam Assist is operational again. 302
Display messagesOn-board computer and displays

Engine
Display messages Possible causes/consequences and
0001 Solutions
000F
Check Coolant
Level See
Operator's Manual 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.
X Add coolant, observing the warning notes before doing so
(Y page 369).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop. 000E The fan motor is faulty.
X
At coolant temperatures below 248 ‡ (120 †) drive to the
neares tqualified specialist workshop.
X Avoid subjecting the engin eto heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. 000E
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolant is too hot.
Aw
arning tone also sounds.
G WARNING
Do no tdrive when youre ngine is overheated. Thi scan cause some
fluids which may have leaked into the engine compartmen tto
catch fire.
Stea mfrom 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,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 183).
X Waitu ntil the engine has cooled down.
X Make sure tha tthe 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 display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). Display messages
303On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
000B The battery is no
tbeing charged.
Aw arning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull ove rand stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Ope nthe hood.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Visit a qualified specialist workshop. 0013
Check Engine Oil
At Next Refueling The engine oil level has dropped to the minimum level.
Aw
arning tone also sounds.
X Chec kthe oil level when next refueling, at the latest
(Y page 368).
X If necessary, add engine oil (Y page 368).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
bevo.mercedes-benz.com. 304
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
0013
Check Engine Oil
Level (Add 1 quart) AMG vehicles: the engine oil level is too low.
X
Chec kthe oil level when next refueling, at the latest
(Y page 368).
X If necessary, add engine oil (Y page 368).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
bevo.mercedes-benz.com. 0012
Fuel Level Low The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 000A There is only a very small amount of fuel in the fuel tank.
X
Refuel at the nearest gas station without fail. 0012
Gas Cap Loose The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
X Close the fuel filler cap.
If the fuel filler cap is correctly closed:
X Visit a qualified specialist workshop. 0012
Ultra Low-sulfur
Diesel Fuel Only Vehicles with a diesel engine: the fuel level has fallen below the
reserve range.
X Refuel at the nearest gas station.
X Only use commercially available vehicular ULTRA-LOW SULFUR
HIGHWAY DIESEL FUEL (ULSD, 15ppm SULFUR MAXIMUM). 0004
Replace Air Filter Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X
Visit a qualified specialist workshop. 0001
Check Fuel Filter Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X
Visit a qualified specialist workshop. Display messages
305On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
0002
Check
Additive See
Operator's Manual The DEF tank is almost empty.
X
Have the DE Ftank filled as soon as possible at aqualified
specialist workshop (Y page 181).0002
Remaining Starts:
16 The DE
Flevel has fallen to a minimum. You can start the engine a
further 16 times.
X Have the DEFt ank filled immediately at a qualified specialist
workshop (Y page 181).
i You can start the engine a further 16 times. If DE Fis not added,
it will then not be possible to restart the engine. Refill the DEF
tank with approximately 1 gal (3.8 l) DEF (Y page 181).Driving systems
Display messages Possible causes/consequences and
0001 Solutions
0003
Attention Assist:
Take a Break! Based on certain criteria, ATTENTION ASSIST has detected fatigue
or
alack of concentration on th epart of th edriver. A warning tone
also sounds.
X If necessary, take a break.
During long journeys, take regular breaks in good time so you get
enough rest. 0003
Attention Assist
Inoperative ATTENTION ASSIST is inoperative.
X
Visi taqualified specialist workshop. 0002
Drive More Slowly You cannot change the vehicle level. Possible causes are:
R
you are driving too fast for the selected vehicle level.
R you are towing a trailer.
R the trailer-coupling socket is being used, e.g. for a bicycle rack.
X Drive more slowly and then select the desired vehicle level
again.
R
Vehicles with the ON&OFFROA Dpackage (Y page 207)
R Vehicles with the AIRMATIC package (Y page 213)
X Observe the notes on towing a trailer (Y page 257).306
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
0001 Solutions
0002
Compressor Is
Cooling You have selected a higher vehicle level. The compressor first
needs to cool down because of frequen
tlevel changes.
X Drive in a manner appropriate for the current vehicle level.
X Make sure that there is sufficien tground clearance.
X Allow the compresso rto cool down.
When the compressor has cooled down, the display message
disappears. The vehicle then continues rising to the selected
level. 0002
Malfunction AIRMATIC is malfunctioning.
X
Drive in a manner appropriate for the current vehicle level, but
no faster than 50 mph (80 km/h).
X Make sure that there is sufficient ground clearance.
X Have the vehicle checked at a qualified specialist workshop. 0002
Max. Speed 12 mph You are exceeding the speed permissible for the selected off-road
level.
In addition, the vehicle level display appears between the vehicle
icon and the display message, and a warning tone sounds.
G WARNING
The vehicle could tip and rollover.
There is a risk of an accident.
X Adjust your driving style to the altered handling characteristics.
X Only make slight steering movements and avoid fast steering
movements.
X Do not drive faster than 12 mph (20 km/h) until off-road level 2
has been reached. ACTIVE CURVE
SYSTEM
Malfunctioning The Active Curve Syste
mis faulty. The vehicle's handling
characteristics may be affected.
X Do not drive faster than 50 mph (80 km/h).
X Have the vehicle checked at a qualified specialist workshop. Display messages
307On-board computer and displays Z

Display messages Possible causes/consequences and
0001 Solutions
ACTIVE CURVE
SYSTEM Malfunction
See Operator's
Manual The Active Curve Syste
mis faulty. The vehicle's handling
characteristics are severely impaired.Aw arning tone also sounds.
G WARNING
There is a ris kofanaccident.
X Drive on carefully.
X Adjust your driving style to the altered handling characteristics.
X Avoid sudde nacceleration in tigh tbends and fast steering
movements.
X Do not drive faster than 50 mph (80km/h).
X Visit a qualified specialist workshop immediately. 000C
Lowering
Max.
Speed 12 mph The vehicle is being lowered from off-road level
3to off-road level
2. The display message informs you of the maximum speed
permissible for off-road level 3.
X Do not drive faster than 12 mph (20 km/h) until off-road level 2
has been reached. 0013
Different. Lock
Sys. Malfunction The differential loc
kis malfunctioning.
X Do not drive faster than 50 mph (80km/h).
X Have the vehicle checked at a qualified specialist workshop. 0013
Different.
Locking
Sys. Cooling Down
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 reengages as soon as it has cooled down. LOW RANGE Stop
Apply Parking Brake Ag
earshift 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 Repeatt he gearshift process. LOW RANGE
Malfunction To
Park, Apply Brake LOW RANGE is malfunctioning.
X
Do not drive faster than 50 mph (80km/h).
X When parking, secure the vehicle against rolling away
(Y page 183).
X Have the vehicle checked at a qualified specialist workshop. 308
Display messagesOn-board computer and displays