SMART roadster Operating Instructions Manual page 182

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Determining the coolant level
Open the rear luggage compartment.
Fold the carpet back (A).
Remove the fastening screw (B) for the
engine compartment cover.
Remove the engine compartment cover
(C).
Check the level in the reservoir by
looking at it side on.
> The fluid level must lie between the
MIN and MAX marks.
>Note!
Warm coolant expands, which is why it
may extend beyond the maximum filling
level.
Checking fluids
Topping up coolant
Let the radiator cool down for at least
30 minutes.
Cover the cap for the coolant expansion
reservoir with a cloth before touching
it.
Turn the cap one complete revolution
in order to allow the excess pressure to
escape.
Unscrew the cap and remove it.
You should only top up the coolant as
far as the maximum filling level.
Replace the cap and tighten when
finished.
Routines 9 9