Mercedes-Benz C 250 Coupe, Operator'S Manual

Page: 268 / 336

yourself. Do not spill any engine oil on hot
engine parts.
H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
! Use only engine oils and oil filters that
have been approved for vehicles equipped
with a service system. A list of the engine
oils and oil filters tested and approved in
accordance with the Mercedes-Benz
Specifications for Service Products can be
called up by visiting
http://
www.mbusa.com (USA only). More
information about tested and approved
engine oils and oil filters is available from
any authorized Mercedes-Benz Center.
Damage to the engine or exhaust system is
caused by the following:
R
using engine oils and oil filters which
have not been specifically approved for
the service system.
R
replacing the engine oil or oil filter after
the replacement interval required by the
service system has elapsed
R
using engine oil additives.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic
converter. Have excess oil siphoned off.
Example: engine oil cap
X
Turn cap
:
counterclockwise and remove
it.
X
Add engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick,
add 0.55 to 1.1 US qt (0.5 to 1.0 l) 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 265).
Further information on engine oil
(
Y
page 330).
Checking and adding other service
products
Checking the coolant level
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 (
Y
page 125) in the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Y
page 125).
X
Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
G
WARNING
In order to avoid any potentially serious burns:
R
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.
R
do not remove the pressure cap on the
coolant reservoir if the coolant temperature
is above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
266
Engine compartment
Maintenance and care