Mercedes-Benz GL-Class: Checking the coolant level
Only check the coolant level when the vehicle is on a level surface and the engine has cooled down.
► Turn the SmartKey to position 2 in the ignition lock.
On vehicles with KEYLESS-GO, press the Start/Stop button twice.
► Check the coolant temperature gauge in the multifunction display.
The coolant temperature must be below 158 °F (70 °C).
WARNING
In order to avoid any potentially serious burns:
• use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
• do not remove the pressure cap on
the
coolant reservoir if the coolant temperature
is above 158 °F (70 °C). Allow the engine to
cool down before removing the cap. The
coolant reservoir contains hot fluid and is
under pressure.
• using a rag, slowly turn the cap
approximately 1/2 turn to relieve excess
pressure. If opened immediately, scalding hot fluid and steam will be blown out
under
pressure.
• do not spill antifreeze on hot
engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.
► Slowly turn cap 1 half a turn
counterclockwise
and allow excess pressure to
escape.
► Turn cap 1 further counter-clockwise and
remove it.
If the coolant is at the level of marker bar 3 in the filler neck when cold, there is enough coolant in coolant expansion tank 2.
If the coolant is approximately 0.6 in (1.5 cm) above marker bar 3 in the filler neck when warm, there is enough coolant in coolant expansion tank 2.
► If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
► Replace cap 1 and turn it clockwise as far
as it will go.
For further information on coolant, see.
Windshield washer system andheadlamp cleaning system
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system.
Vehicle components and their service
products must match. You should, therefore, only ...
See also:
Remote key fob battery replacement
Note: There are two designs of Smart Key, refer to the information which is relevant
to the design of Smart Key supplied with the vehicle.
When the battery needs renewing, there will be a significa ...
Preset Destination
The preset destination entry method lets you set a destination by selecting from
one of five previously stored destinations. Besides voice tagged destinations, these
are the only destinations availa ...
Video Screen
The video screen is located in the overhead console. When the video screen is
not in use, push it up into its locked position.
To use the video screen:
1. Push the release button located on the ov ...