Display messagesPossible causes/consequences and M SolutionsThere is water in the engine oil.XHave the engine oil examined at a qualified specialist workshop.The measuring system is malfunctioning.XVisit a qualified specialist workshop.4
Engine Oil Level
Service RequiredThe engine oil level has dropped to a critical level.XCheck the oil level ( Y page 215).XIf necessary, add engine oil ( Y page 216).XHave the engine checked for leaks if you need to add engine oil
more often than usual.You have added too much engine oil. There is a risk of damaging
the engine or catalytic converter.XSiphon off excess engine oil until it is at the specified level.
Observe the legal requirements.There is water in the engine oil.XHave the engine oil checked.4
At next~gas
station add
1.0 qt. engine oil
(USA only)
At next~gas
station add
1.0 liter engine
oil
(Canada only)The engine oil level is too low.XCheck the oil level ( Y page 215).XIf necessary, add engine oil ( Y page 216).XHave the engine checked for leaks if you need to add engine oil
more often than usual.
Information on approved engine oils can be obtained from any qualified specialist workshop
or on the Internet at http://www.mbusa.com (USA only).
! The oil level is too low. Avoid long journeys with too little engine oil. There is a risk of
engine damage.
The display messages and the corresponding symbol that indicate that the oil level is too
low must not be ignored.
Display messages177On-board computer and displaysZProCarManuals.com
Display messagesPossible causes/consequences and M Solutions4
Engine Oil Level
Stop, Turn Engine
OffThe engine oil level is too low. There is a risk of engine damage.XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.XSwitch off the engine.XAdd engine oil ( Y page 216) and check the oil level
( Y page 215).8
Reserve FuelThe fuel level has fallen below the reserve range. The fuel gauge's
needle does not move any further down. The operation of the
auxiliary heating can no longer be guaranteed.XRefuel at the nearest gas station.8
Gas cap is openThe fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.XCheck that the fuel filler cap is correctly closed.XIf the fuel filler cap is not correctly closed: close the fuel filler
cap.XIf the fuel filler cap is closed: visit a qualified specialist
workshop.´
Clean Fuel FilterThere is water in the fuel filter. The water must be drained off.XVisit a qualified specialist workshop.
Driving systems
Display messagesPossible causes/consequences and M SolutionsAAS
Service RequiredGRisk of accident
AAS is not available due to a malfunction. The vehicle may roll
back on a gradient as soon as you remove your foot from the
accelerator pedal.
XDrive on carefully.XVisit a qualified specialist workshop immediately.Cruise Cont.
InoperativeCruise control is inoperative.XVisit a qualified specialist workshop.178Display messagesOn-board computer and displays
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TiresGWarning
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
GWarning
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc.
Display messagesPossible causes/consequences and M SolutionsTire pressure
displayed only
after driving for
a few minutesThe tire pressure monitor is measuring the tire pressure.XDrive on.
The tire pressures appear in the multifunction display after you
have been driving for a few minutes.Tire Pres.
Check TiresGRisk of accident
The tire pressure monitor has detected a significant pressure loss.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XCheck the tires.XCheck the tire pressure and correct it if necessary
( Y page 246).XRepair or change the faulty wheel as necessary ( Y page 232).XThen, restart the tire pressure monitor when the tire pressure
is correct ( Y page 253).Tire Pres. Monitor
InoperativeThe tire pressure monitor is deactivated due to a malfunction.XVisit a qualified specialist workshop.Tire Pres. Monitor
Inoperative No
Wheel SensorsThe wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.XMount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes.Display messages179On-board computer and displaysZProCarManuals.com
Display messagesPossible causes/consequences and M SolutionsCaution Tire DefectGRisk of accident
The tire pressure in one or more tires has dropped suddenly. The
wheel position is displayed in the multifunction display.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 232).Correct The
Tire Pres.The tire pressure is too low in at least one of the tires or the tire
pressure difference between the wheels is too great.XCheck the tire pressures at the next opportunity. If necessary,
correct the tire pressure ( Y page 249).XRestart the tire pressure monitor ( Y page 255).Wheel Sensor
MissingThere is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.XHave the defective tire pressure sensor replaced at a qualified
specialist workshop.Tire Pres. Monitor
Currently
UnavailableDue to a source of radio interference, no signals can be received
from the wheel sensors. The tire pressure monitor is temporarily
malfunctioning.XDrive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved.h
Correct The Tire
Pres.The tire pressure is too low in at least one of the tires or the tire
pressure difference between the wheels is too great.XCheck the tire pressures at the next opportunity. If necessary,
correct the tire pressure ( Y page 252).180Display messagesOn-board computer and displays
ProCarManuals.com
Display messagesPossible causes/consequences and M Solutionsh
Tire Pres. Caution
Tire DefectGRisk of accident
The tire pressure in one or more tires has dropped suddenly.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 232).h
Tire Pres. Check
TiresGRisk of accident
The tire pressure in one or more tires has dropped significantly.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.XIf necessary, change a wheel ( Y page 232).XCheck the tire pressure. If necessary, correct the tire pressure
( Y page 252).
Vehicle
Display messagesPossible causes/consequences and M Solutions:The rear door is open.XClose the rear door.MGRisk of accident
Vehicles with anti-theft alarm system:
The hood is open. A warning tone also sounds.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XApply the parking brake.XClose the hood.¡At least one door is open.XClose all the doors.~
Bluetooth ReadyThe Bluetooth ®
connection between your mobile phone and
COMAND is not activated.XIf desired, activate the Bluetooth ®
connection between your
mobile phone and COMAND (see the separate Operator's
Manual).¥
Top Up Washer FluidThe washer fluid level in the washer fluid reservoir has dropped
below the minimum.XAdd washer fluid ( Y page 218).Display messages181On-board computer and displaysZProCarManuals.com
Display messagesPossible causes/consequences and M Solutions©
TC Shift Procedure
CanceledThe gear change process was not carried out.XRepeat the gearshift process.©
TC Shift
Conditions Not
FulfilledOne or more conditions to shift the transfer case have not been
fulfilled.XRepeat the gearshift process.©
TC In NeutralThe transfer case is in the neutral position.XShifting the transfer case into HIGH or LOW .©
Transfer Case
Service RequiredThere is a malfunction in the transfer case.XDo not shift the transfer case.XHave the vehicle checked as soon as possible at a qualified
specialist workshop.GWarning!
If the transfer case is in Neutral, the park position P of the automatic transmission will not hold
the vehicle. The parking brake must be engaged to hold the vehicle in place.
182Display messagesOn-board computer and displays
ProCarManuals.com
Warning and indicator lamps in the instrument cluster
Brakes
ProblemPossible causes/consequences and M Solutions$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the vehicle is
moving. A warning tone
also sounds.You are driving with the parking brake applied.XRelease the parking brake
The warning lamp goes out and the warning tone ceases.$ (USA only)
J (Canada only)
The red brake system
warning lamp comes on
while the engine is
running.GRisk of accident
There is not enough brake fluid in the brake fluid reservoir.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.XEngage the parking brake.XConsult a qualified specialist workshop immediately.XObserve the additional display messages in the multifunction
display.
Do not add brake fluid. This does not correct the error.
GWarning
Driving with the brake warning lamp illuminated can result in an accident. Have your brake system
checked immediately if the brake warning lamp stays on. Do not add brake fluid before checking
the brake system.
Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the
brake fluid catching fire. You can be seriously burned.
Warning and indicator lamps in the instrument cluster183On-board computer and displaysZProCarManuals.com
Seat beltProblemPossible causes/consequences and M Solutions7
After starting the
engine, the red seat
belt warning lamp lights
up for six seconds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.XFasten your seat belt ( Y page 43).7
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a
warning tone sounds
for up to six seconds.GRisk of injury
The driver's seat belt is not fastened.
XFasten your seat belt ( Y page 43).
The warning tone ceases.7
The red seat belt
warning lamp lights up
after the engine starts,
as soon as the driver's
or the front-passenger
door is closed.GRisk of injury
The driver or front passenger has not fastened their seat belt.
XFasten your seat belt ( Y page 43).
The warning lamp goes out.GRisk of injury
There are objects on the front-passenger seat.
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.7
The red seat belt
warning lamp flashes
and an intermittent
audible warning
sounds.GRisk of injury
The driver or front passenger has not fastened their seat belt. In
addition, you are driving faster than 15 mph (25 km/h) or you have
briefly driven faster than 15 mph (25 km/h).
XFasten your seat belt ( Y page 43).
The warning lamp goes out and the intermittent audible warning
ceases.GRisk of injury
There are objects on the front-passenger seat. In addition, you are
driving faster than 15 mph (25 km/h) or you have briefly driven
faster than 15 mph (25 km/h).
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent audible warning
ceases.184Warning and indicator lamps in the instrument clusterOn-board computer and displays
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