Mercedes-Benz C-Class Coupe 2019 Operator's Manual page 344

342 Maintenance and care
Oil level too high: oil level is above 2.
R
If the oil level is too low, add 1.1 US qt
#
(1 liter) of engine oil.
If the oil level is too high, drain off excess
#
engine oil. Consult a qualified specialist
workshop.
Checking the engine oil level using the on-
board computer
Requirements
The engine must have an oil level sensor. If not,
the engine oil level can be checked only with the
oil dipstick ( page 341).
/
The engine oil level is determined during driving.
Determining the engine oil level can take up to
30 minutes with a normal driving style and even
longer with an active driving style.
In order to receive a result as quickly as possi‐
ble:
Warm up the engine
R
Park the vehicle on a level surface
R
Leave the engine running at idling speed
R
On-board computer:
Service Engine Oil Level
4 5
You will see one of the following messages on
the multifunction display:
Measuring Engine Oil Level...: measurement
R
of the oil level is not yet possible.
Repeat the request after a maximum of
#
30 minutes driving.
Engine Oil Level OK and the bar display for
R
indicating the oil level on the multifunction
display is green and is between "min" and
"max": the oil level is correct.
Engine Oil Level Add 1.0 l and the bar display
R
for indicating the oil level on the multifunc‐
tion display is orange and is below "min":
Add 1.1 US qt (1 l) engine oil.
#
Reduce Engine Oil Level and the bar display
R
for indicating the oil level on the multifunc‐
tion display is orange and is above "max":
Drain off excess engine oil that has been
#
added. Consult a qualified specialist work‐
shop.
For Engine Oil Level Switch Ignition
R
Switch on the ignition to check the engine oil
#
level.
Engine Oil Level System Inoperative: sensor
R
faulty or not inserted.
Consult a qualified specialist workshop.
#
Engine Oil Level System Currently
R
Close the hood.
#
Adding engine oil
& WARNING Risk of burns from hot com‐
ponent parts in the engine compartment
Certain components in the engine compart‐
ment can be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
Allow the engine to cool down and only
#
touch component parts described in the
following.
On:
Unavail.: