Windshield Washer System Data; Climate Control System Refrigerant - Mercedes-Benz GLA 250 2019 Operator's Manual

Service products and filling capacities
338
Comply with the important safety notes for
service products when handling coolant
( page 334).
Y
The coolant is a mixture of water and corro-
sion inhibitor/antifreeze concentrate. It per-
forms the following tasks:
anti-corrosion protection
R
antifreeze protection
R
raising the boiling point
R
If the coolant has antifreeze protection down
to -35 ‡ (-37 †), the boiling point of the cool-
ant during operation is approximately 266 ‡
(130 †).
The antifreeze concentrate/corrosion inhibitor
concentration in the engine cooling system
should:
be at least 50%. This will protect the engine
R
cooling system against freezing down to
approximately -35 ‡ (-37 †)
not exceed 55% (antifreeze protection down
R
to -49 ‡ [-45 †]). Otherwise, heat will not
be dissipated as effectively
Mercedes-Benz recommends a coolant or cor-
rosion inhibitor/antifreeze concentrate in
accordance with
MB Specifications for Service Products 310.1.
i
When the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures ade-
quate antifreeze and anti-corrosion protec-
tion.
i
The coolant is checked with every mainte-
nance interval at a qualified specialist work-
shop.
Filling capacities
Model
Mercedes‑AMG
vehicles
All other models
Capacity
Approx. 12.6 US qt
(11.9 l)
Approx. 8.2 US qt
(7.8 l)
Windshield washer system
Important safety notes
G
WARNING
Windshield washer concentrate is highly
flammable. If windshield washer concentrate
gets onto hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure that windshield washer concen-
trate is not spilled in the vicinity of the filler
neck.
!
Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
Do not use distilled or de-ionized water. Other-
wise, the level sensor may give a false reading.
When handling washer fluid, observe the
important safety notes on service products
( page 334).
Y
At temperatures above freezing:
Fill the washer fluid reservoir with a mixture
X
of water and windshield washer fluid, e.g.
MB SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing:
Fill the washer fluid reservoir with a mixture
X
of water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the
information on the antifreeze reservoir.
i
Add windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid
all year round.

Climate control system refrigerant

Important safety notes
The climate control system of your vehicle is
filled with refrigerant R‑134a.
The instruction label regarding the refrigerant
type used can be found on the left, on the
underside of the hood.
!
Only the refrigerant R‑134a and the PAG
oil approved by Mercedes-Benz may be