Mercedes-Benz C-Coupe 2013 Owners Manual - Manual (Page 278)

Example: engine oil cap
X Turn cap : counter-clockwise and remove
it.
X
Add engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick, add 1.1 US qt (1.0 liter)
of engine oil.
X
Replace cap : on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
X
Check the oil level again with the oil
dipstick (
Y
page 275).
Further information on engine oil
(
Y
page 340).
Checking and adding other service
products
Checking coolant level
G WARNING
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.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X Turn the SmartKey to position 2 in the
ignition lock (
Y
page 133).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Y
page 133).
X Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
X Slowly turn cap : half a turn counter-
clockwise and allow excess pressure to
escape.
X
Turn cap : further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar = in the fuel
filler neck when warm, there is enough
coolant in expansion tank ;.
X If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap : and turn it clockwise as far
as it will go.
For further information on coolant, see
(
Y
page 341).
276
Engine compartment
Maintenance
and
care