Mercedes-Benz GLB 2023 Operator's Manual page 361

& WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Windshield washer concentrate is highly flam-
mable. It could ignite if it comes into contact
with hot engine component parts or the
exhaust system.
Make sure that no windshield washer
#
concentrate spills out next to the filler
opening.
* NOTE Damage to the exterior lighting due
to unsuitable windshield washer fluid
Unsuitable windshield washer fluid may dam-
age the plastic surface of the exterior lighting.
Only use windshield washer fluid which is
#
also suitable for use on plastic surfaces,
e.g. MB SummerFit or MB WinterFit.
* NOTE Blocked spray nozzles caused by
mixing windshield washer fluids
Do not mix MB SummerFit and MB Win-
#
terFit with other windshield washer flu-
ids.
Do not use distilled or de-ionised water. Other-
wise, the fill level sensor may be triggered errone-
ously.
Recommended windshield washer fluid:
Above freezing point: e.g. MB SummerFit
R
Below freezing point: e.g. MB WinterFit
R
For the correct mixing ratio, refer to the informa-
tion on the antifreeze container.
Mix washing water with windshield washer fluid all
year round.
Refrigerant
▌Notes on refrigerant
Observe the notes on operating fluids
( page 353).
/
Technical data 359
* NOTE Damage due to incorrect refrigerant
If a non-approved refrigerant is used, the cli-
mate control system may be damaged.
USA: use only R‑134a refrigerant.
#
Canada: use only R‑1234yf refrigerant.
#
* NOTE Damage to the climate control sys-
tem due to incorrect refrigerant compres-
sor oil
Only use refrigerant compressor oil that
#
has been approved by Mercedes-Benz.
Do not mix the approved refrigerant
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compressor oil with a different refriger-
ant compressor oil.
Work on the climate control system may be car-
ried out only at a qualified specialist workshop. All
applicable regulations as well as SAE standard
J639 must be adhered to.
The information label for the climate control sys-
tem regarding the refrigerant type and the refrig-
erant compressor oil (PAG oil) is located on the
inside of the hood.