Example: engine oil capXTurn cap Ccounter-clockwise and remove
it.
XAdd engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick, add 1.1 US qt (1.0 l) of
engine oil.
XReplace cap Con the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
XCheck the oil level again with the oil
dipstick (Ypage 371).
Further information on engine oil
(Ypage 449).
Additional service products
Checking coolant level
GWARNING
Certain components in the engine
compartment, such as the engine, radiator
and parts of the exhaust system, can become
very hot. Working in the engine compartment
poses a risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
GWARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out. There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
XPark the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
XTurn the SmartKey to position2in the
ignition lock (Ypage 167).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Ypage 167).
XCheck the coolant temperature gauge in
the multifunction display.
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position
0(Ypage 167) in the ignition lock.
XSlowly turn cap Chalf a turn counter-
clockwise to allow excess pressure to
escape.
XTurn cap Cfurther counter-clockwise and
remove it.
If the coolant is at the level of marker bar
XIf necessary, add coolant that has been
tested and approved by Mercedes-Benz.
XReplace cap Cand turn it clockwise as far
as it will go.
For further information on coolant, see
(Ypage 450).
Adding washer fluid to the windshield
washer system
GWARNING
Certain components in the engine
compartment, such as the engine, radiator
and parts of the exhaust system, can become
very hot. Working in the engine compartment
poses a risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following.
GWARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
Example: washer fluid reservoir
Example: washer fluid reservoir in AMG vehicles
XTo open:pull cap Cupwards by the tab.
XAdd the premixed washer fluid.
XTo close:press cap Conto the filler neck
until it engages.
If the washer fluid level drops below the
recommended minimum of 1 liter, a message
appears in the multifunction display
prompting you to add washer fluid
(Ypage 322).
Further information on windshield washer
fluid/antifreeze (Ypage 451).
ASSYST PLUS
Service message
The ASSYST PLUS service interval display
informs you of the next service due date.
Information on the type of service and service
intervals (see the separate Maintenance
Booklet).
374ASSYST PLUS
Maintenance and care
