Porsche 928 S 1986 Driver Manual page 28

Cooling Fluid
Temperature Gauge
Lower Range - engine cold
Avoid overrevving the engine or labouring
Middle Range - normal
The temperature gauge needle should nor-
mally stay in this range. It is not unusual, when
the engine is being highly stressed, that the
needle tends towards the upper range, but it
should return to the middle when the engine
loading is reduced.
Upper Range - Warning
If the needle goes into the upper range it
means that the engine is being overloaded (by
high outside temperatures) and the warning
light will come on.
Warning light
If the warning light comes on, check that the
cooling fan is working. If the fan is not rotating.
the V-belt may be slack or broken; if so, it must
either be tightened or renewed. In cars with
air-conditioning, the electric fan located in front
of the air-conditioning condenser must also
operate. If it does not, there is a fault in the po-
wer supply or the temperature switch.
Allow the engine to cool down and drive to the
nearest authorized workshop, keeping a con-
stant check on the temperature gauge.
Avoid idling, crawling and engine speeds over
4000 rpm.
Consult the chapter on the cooling system.
Fuel Gauge
With the ignition turned on the gauge shows
the amount of fuel in the tank. If the level is too
low the fuel warning light comes on.
Warning light
The warning light comes on when about 8 liters
(7 Imp. qts) are left int the tank. The tank should
be filled at the next opportunity.
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