Volvo 240 Owner's Manual page 13

Volvo 1990 240 Model
The gauge pointer must not go down to the red
field while driving.
Do not continue to drive the car with the pointer in
the red zone.
Note: While idling with a hot engine the pointer
may go into the red field. This is not a cause for
concern providing the pointer rises to the normal
driving range again when you increase the engine
speed.
file:///K|/ownersdocs/1990/1990_240/90240_02.htm (4 of 4)12/30/2006 8:25:02 AM
should be within the black field.
Should the pointer point to the upper or lower red
field when driving, this may indicate some fault in
the electrical system.
Note: While idling with a hot engine (especially
with air conditioning ON), the pointer may
indicate low voltage. This is not a cause for
concern provided that the indicated voltage
increases when you increase engine speed.
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