Mercedes-Benz A-Class 2021 Operator's Manual page 331

* 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-ionized water. Other‐
wise, the fill level sensor may be triggered erro‐
neously.
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 washer fluid with windshield washer fluid all
year round.
Refrigerant
Notes on refrigerant
Observe the notes on operating fluids
( page 323).
/
* NOTE Damage due to incorrect refriger‐
ant
If a non-approved refrigerant is used, the cli‐
mate control system may be damaged.
USA/China: Use only R‑134a refriger‐
#
ant.
Canada: Use only R‑1234yf refrigerant.
#
* NOTE Damage to the climate control
system due to incorrect refrigerant com‐
pressor oil
Only use refrigerant compressor oil that
#
has been approved by Mercedes-Benz.
Do not mix the approved refrigerant
#
compressor oil with a different refriger‐
ant compressor oil.
Work on the climate control system may be car‐
ried out only by a qualified specialist workshop.
All applicable regulations, as well as SAE stand‐
ard J639, must be adhered to.
The information label for the climate control sys‐
tem regarding the refrigerant type and the refrig‐
Technical data 329
erant compressor oil (PAG oil) is located on the
inside of the hood.
Information label (example – USA/China)
1 Hazard and service warning symbols
2 Refrigerant filling capacity
3 Applicable standards
4 PAG oil part number
5
GWP (global warming potential) of the refrig‐
erant used
6 Refrigerant type