Capacities
Components Capacity Coolants, lubricants, etc.
Coolant system approx. 7.8 US qt (7.4 l) Anticorrosion/Antifreeze
meeting specification MB 325.0
Air conditioning system — R134a refrigerant and special
PAG lubricant oil (never R 12)
Windshield washer
system 1.1 US qt (1.0 l)
Windshield washer concentrate
13
(Y page 212)
Washer fluid mixing ratio
(Y page 212) Brake fluid
G
WARNING
During vehicle operation, the boiling
point of the brake fluid is continuously
reduced through the absorption of moisture
from the atmosphere. Under extremely
strenuous operating conditions, this
moisture content can lead to the formation
of bubbles in the system, thus reducing the
system’s efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s
Maintenance Booklet for replacement
interval.
Only brake fluid approved by smart is
recommended. Any authorized electric
drive smart center will provide you with
additional information. Windshield/rear window washer system
During all seasons:
X Use a windshield washer concentrate
labeled for summer and water for
temperatures above freezing point.
X Use a windshield washer concentrate
labeled for winter and water for
temperatures below freezing point.
X Premix the windshield washer fluid in a
suitable container depending on the
outside temperature and in accordance
with the manufacturer’s instructions 14
.
Washer fluid mixing ratio R
Temperature above 32¦ (0¥):
1 part windshield washer concentrate
labeled for summer to 100 parts water
R Temperature of 14¦ (-10¥):
1 part windshield washer concentrate
labeled for winter to 2 parts water
R Temperature of -4¦ (-20¥):
1 part windshield washer concentrate
labeled for winter to 1 part water
13 Use a windshield washer concentrate labeled for summer and water for temperatures above freezing
point or a windshield washer concentrate labeled for winter and water for temperatures below freezing
point.
14 Refer to the notes for use on the container. 212
Service fluids and capacities>> Technical data.
G
WARNING
Windshield washer concentrate is highly
flammable. Fire, naked flames and smoking
are prohibited when windshield washer
concentrate is being handled. Coolants
The battery and drive system coolant is a
mixture of water and anticorrosion/
antifreeze, which provides:
R Corrosion protection
R Freeze protection
R Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximatel y-35¦ (-37¥) and
corrosion protection.
! Add premixed coolant solution only.
Adding water and MB 325.0
Anticorrosion/Antifreeze separately
from each other, could cause drive system
damage not covered by the smart Limited
Warranty.
If the antifreeze mixture is effective to
-35¦ (-37¥), the boiling point of the
coolant in the pressurized cooling system
is reached at approximately 266¦
(130¥ ).
The coolant solution must be used year
round, even in countries which have high
temperatures to provide the necessary
corrosion protection and increase
boil‑over protection. Refer to
Maintenance/ Service Booklet for
replacement interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance booklet is only applicable if
MB 325.0 Anticorrosion/Antifreeze
solution or other smart approved products
of equal specification are used to renew the coolant concentration or bring it back
up to the proper level.
For information on other smart approved
products of equal specification, contact an
authorized electric drive smart center.
To provide important corrosion
protection, the solution must be at least
50% anticorrosion/antifreeze (equivalent
to freeze protection to approximately
-35¦
[-37¥]).
If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze
protection to approximately -49 ¦
[(-45¥]), the drive system and battery
temperature will increas edue to the lower
heat transfer capability of the solution.
Therefore, do not use more than this amount
of anticorrosion/antifreeze.
If the coolant level is low, water and
MB 325.0 Anticorrosion/Antifreeze should
be used to bring it up to the proper level
(have cooling system checked for signs of
leakage). Please make sure the mixture is
in accordance with label instructions.
Always use anticorrosion/antifreeze that
has been approved by smart. For
information contact an authorized electric
drive smart center.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water.
If you are not sure about the water quality,
consult an authorized electric drive smart
center.
Capacities Cooling-system
capacity
All models approx. 7.8 US qt
(7.4 l)Service fluids and capacities
213>> Technical data. Z
