SMART for two coupé Operator's Manual page 222

Service fluids and capacities
220
Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum components
in motor vehicle drive systems necessi-
tates that anticorrosion/antifreeze cool-
ant used in such drive systems be specifi-
cally formulated to protect the aluminum
parts.
Failure to use such anticorrosion/anti-
freeze coolant will result in a signifi-
cantly shortened service life.
Therefore, the following product is
strongly recommended for use in your vehi-
cle: MB 325.0 Anticorrosion/Antifreeze
agent.
Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked.
The coolant is also regularly checked each
time you bring your vehicle to an author-
ized electric drive smart center for
service.
Anticorrosion/antifreeze quantity:
Cooling system
Approximate freeze protection
-35¦ ¦ (-37¥ ¥ )
approx. 3.5 US qt
(3.3 l)
-49¦ ¦ (-45¥ ¥ )
approx. 3.8 US qt
(3.6 l)