Engine
Display messages | Possible causes/consequences and Solutions |
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 |
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. |
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 °F (120 °C) 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: • a defective alternator • a torn poly-V-belt • a 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. |
|
The oil level has dropped to the minimum level. A warning tone also sounds. Check the oil level, at the latest when next refueling. If necessary, add engine oil. Have the engine checked at a qualified specialist workshop if engine oil needs to be added 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 messages | Possible causes/consequences and Solutions |
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. |
|
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. |
See also:
Ride & Handling
When I first saw the wheels on my test GLK350 — those 20-inch rims and
low-profile all-season tires — I was a little worried about how it would ride on
Chicago's crater-filled roads. To my surpris ...
Ashtray in the rear-compartment center
console
Close the ashtray when it is not in use and
before you fold the rear seats forward. You
can otherwise damage the ashtray.
Vehicles without a Rear Seat Entertainment
System have an ashtray ...
Tachometer
The red band in the tachometer indicates the
engine's overrevving range.
! Do not drive in the overrevving range, as
this could damage the engine.
The fuel supply is interrupted to protect the
...