User Manual - Page 425

For 2020 GLC Coupe.

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Oil level too high: oil level is above 2.
#
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 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:
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Warm up the engine
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Park the vehicle on a level surface
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Leave the engine running at idling speed
On-board computer:
4
Service
5
Engine Oil Level
You will see one of the following messages on
the multifunction display:
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Measuring Engine Oil Level...: measurement
of the oil level is not yet possible.
#
Repeat the request after a maximum of
30 minutes driving.
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Engine Oil Level OK and the bar display for
indicating the oil level on the multifunction
display is green and is between "min" and
"max": the oil level is correct.
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Engine Oil Level Add 1.0 l and the bar display
for indicating the oil level on the multifunc‐
tion display is orange and is below "min":
#
Add 1.1 US qt (1 l) of engine oil.
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Reduce Engine Oil Level and the bar display
for indicating the oil level on the multifunc‐
tion display is orange and is above "max":
#
Drain off any excess engine oil that has been
added. Consult a qualified specialist work‐
shop.
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For Engine Oil Level Switch Ignition On:
#
Switch on the ignition to check the engine oil
level.
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Engine Oil Level System Inoperative: sensor
faulty or not inserted.
#
Consult a qualified specialist workshop.
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Engine Oil Level System Currently Unavail.:
#
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.
Maintenance and care
423
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