SMART fortwo coupe Operator's Manual page 118

Front compartment
116
cooling system, or if the coolant
temperature warning lamp ? in the
instrument cluster indicates that the
coolant is overheated.
Do not remove pressure cap on coolant
R
reservoir if coolant temperature is
above 158¦ (70¥). Allow engine to cool
down before removing cap. The coolant
reservoir contains hot fluid and is under
pressure.
Using a rag, slowly open the cap
R
approximately
pressure. If opened immediately,
scalding hot fluid and steam will be
blown out under pressure.
The engine coolant is a mixture of water
and anticorrosion/antifreeze. To check the
coolant level the vehicle must be parked on
level ground and the engine must have
cooled down. For more information, see
Y
"Coolants" ( page 213).
Checking coolant level
X
Remove the service flap and insert it on
the front of the vehicle (
The coolant reservoir is located in the
front compartment on the driver's side.
X
Allow the radiator to cool down for at
least 30 minutes.
X
Using a rag, turn pressure cap : slowly
approximately one half turn
14 Coupé only.
1
/ turn to relieve excess
2
Y
page 114).
counterclockwise to release any excess
pressure.
X
Continue turning pressure cap :
counterclockwise and remove it.
The coolant level is correct if the level
for cold coolant: reaches marking
R
bar ; visible through the filling
opening
for warm coolant: is approximately
R
0.6 in (1.5 cm) higher
X
If necessary, add coolant.
Adding coolant
X
Add coolant as required. The coolant
level may not exceed the maximum filling
level.
X
Replace and tighten pressure cap :.
X
Remount the service flap and close it
Y
( page 114).
Windshield/rear window washer system
Both the windshield and the rear window
washer are supplied from the windshield
washer reservoir.
The recommended minimum filling level is
1.06 US qt (1.0 l).
X
Remove the service flap and insert it on
the front of the vehicle (
14
Y
page 114).