Engine
Display messages | Possible causes/consequences and •► Solutions |
Check Coolant Level See Operator's Manual
The coolant level is too low.
•► Add coolant, observing the warning notes when doing so.
•► If coolant needs to be added more often than usual, have the engine coolant system checked at a qualified specialist workshop.
WARNING
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol
which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
The coolant level is too low. Avoid making long journeys with too little coolant in the cooling system. The engine will otherwise be damaged.
The display messages and the corresponding symbol that indicate that the coolant level is too low must not be ignored.
Display messages | Possible causes/consequences and •► Solutions |
Coolant Level Low Stop Vehicle Turn Engine Off
The coolant is too hot.
•► Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
•► Make sure that the air supply to the engine radiator is not blocked, e.g. by snow, slush or ice.
•► Wait until the display message disappears before restarting the engine. Otherwise, there is a risk of engine damage.
•► Pay attention to the coolant temperature display.
•► If the temperature increases again, visit a qualified specialist workshop immediately.
The poly-V-belt may have torn.
•► Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
•► Open the hood.
•► Check whether the poly-V-belt is torn.
If the poly-V-belt is torn: Do not continue driving. The engine could otherwise overheat.
•► Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
•► Wait until the display message disappears before restarting the engine. Otherwise, there is a risk of engine damage.
•► Pay attention to the coolant temperature display.
•► Visit a qualified specialist workshop.
WARNING
Driving when your engine is overheated can cause some fluids which may have
leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the vehicle and do not stand near the vehicle until the engine has cooled down.
If the coolant temperature exceeds 248 ‡(120 °) do not continue driving. The engine will otherwise be damaged
Display messages | Possible causes/consequences and •► Solutions |
The engine fan is defective.
•► At coolant temperatures under 248 °F (120 °C), drive to the next qualified specialist workshop.
•► Avoid subjecting the engine to heavy loads, e.g. driving in mountainous terrain, and stop-and-go traffic.
The battery is not being charged.
Possible causes are:
Ra defective alternator Ra torn poly-V-belt Ra malfunction in the electronics
•► Pull over and stop the vehicle safely and switch off the engine, paying attention to road and traffic conditions.
•► Open the hood.
•► Check whether the poly-V-belt is torn.
If the poly-V-belt is torn: ! Do not continue driving. The engine could otherwise overheat.
•► Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
•► Visit a qualified specialist workshop.
Check Engine Oil At Next Refueling
The engine oil level has dropped to the minimum level.
A warning tone also sounds.
•► Check the engine oil level at the latest when next refueling.
•► If necessary, add engine oil.
•► If engine oil needs to be added more often than usual, have the engine checked at a qualified specialist workshop.
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 messages | Possible causes/consequences and •► Solutions |
Fuel Level Low
The fuel level has dropped into the reserve range.
•► Refuel at the nearest gas station.
There is only a very small amount of fuel in the fuel tank.
•► Refuel at the nearest gas station without fail.
Gas Cap Loose
The fuel system pressure is too low. The fuel filler cap is not closed correctly or the fuel system is leaking.
•► Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
•► Close the fuel filler cap.
If the fuel filler cap is correctly closed:
•► Visit a qualified specialist workshop.
Ultra Low-sulfur Diesel Fuel Only
Vehicles with a diesel engine: the fuel level has fallen below the reserve range.
•► Refuel at the nearest gas station.
•► Only use commercially available vehicular ULTRA-LOW SULFUR HIGHWAY DIESEL FUEL (ULSD, 15 ppm SULFUR MAXIMUM).
Replace Air Filter
Vehicles with a diesel engine: the engine air filter is dirty and must be replaced.
•► Visit a qualified specialist workshop.
Check Fuel Filter
Vehicles with a diesel engine: there is water in the fuel filter. The water must be drained off.
•► Visit a qualified specialist workshop.
Check Additive See Operator's Manual
The DEF tank is empty.
•► Have the DEF tank filled as soon as possible at a qualified specialist workshop
Remaining Starts:
16
The DEF level has fallen to a minimum.
•► Have the DEF tank filled immediately at a qualified specialist workshop.
See also:
Limited braking performance on salttreated roads
WARNING
The layer of salt on the brake discs and the brake pads/linings may cause a delay
in the braking effect, resulting in a significantly longer braking distance, which
could lead to an ...
Enlarging the cargo compartment
Important safety notes
WARNING
When expanding the cargo volume, always
fully fold the corresponding seats and, if so equipped, always use the cargo net
when
transporting cargo.
Unle ...
Towing a vehicle with both axles on
the ground
When having your vehicle towed, observe the
important safety notes.
WARNING
The power assistance for the steering and the
brake force booster do not work when the
engine is not running. You w ...