Mercedes-Benz GLS 2020 Operator's Manual page 426

424 Maintenance and care
Slowly slide oil dipstick 1 into the guide
#
tube to the stop, and take it out again after
approximately three seconds.
Oil level is correct: oil level is between
R
and 3.
Oil level too low: oil level is at
R
below.
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 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 idle speed
R
On-board computer:
2
Service Engine Oil Level
4 5
3 or
You will see one of the following messages on
the multifunction display:
Measuring Engine Oil
R
of the oil level is not yet possible.
Repeat the request after a maximum of
#
30 minutes driving.
Engine Oil Level OK
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
R
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.
#
Reduce Engine Oil Level
R
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. To do so, consult a qualified specialist
workshop.
For Engine Oil Level Switch Ignition
R
Switch on the ignition to check the engine oil
#
level.
Engine Oil Level System
R
Level...: measurement
faulty or not inserted.
Consult a qualified specialist workshop.
#
Engine Oil Level System Currently
R
and the bar display for
Close the hood.
#
Adding engine oil
& WARNING Risk of burns from hot com‐
and the bar display 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
and the bar display
#
touch component parts described in
the following.
On:
Inoperative: sensor
Unavail.: