Mazda 2012 MX-5 Owner's Manual page 327

In Case of an Emergency
Overheating
If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
Coolant reservoir
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
8-20).
CAUTION
If the engine continues to overheat or
frequently overheats, have the
cooling system inspected. The engine
could be seriously damaged unless
repairs are made. Consult an
Authorized Mazda Dealer.
7-20
Cooling system cap