Mercury 1999 Villager Owner's Manual page 14

Instrumentation
empty indication, the amount of fuel that can be added will be less than
the advertised capacity due to the reserve fuel.
Standard analog instrument
cluster
Optional electronic instrument
cluster
Engine coolant temperature gauge
Indicates the temperature of the engine coolant. At normal operating
temperature, the needle remains within the normal area (the area
between the "H" and "C"). If it enters the red section, the engine is
overheating. Stop the vehicle as soon as safely possible, switch off the
ignition and let it cool. Refer to Engine coolant in the Maintenance
and care chapter.
This gauge indicates the temperature of the engine coolant, not the
coolant level. If the coolant is not at its proper level or mixture, the
gauge indication will not be accurate.
Never remove the radiator cap while the engine is running or
hot.
Standard analog instrument
cluster
14
F
E
FUEL
F
1/2
E
H
R
C
TEMP