Porsche 928 S 1986 Driver Manual page 29

Warning Lights
(See also "Central Warning Unit")
BELT TEN.
The warning light indicates insufficient tension
of the toothed belt. Have the toothed belt
checked and re-tensioned at the nearest ga-
rage.
TAIL LAMP
The warning light comes on when a tail light
ceases to function.
STOP LAMP
The warning light comes on when the ignition
is switched on and must go out after the first
brake application. If a brake light bulb is defec-
tive the warning light will not go out.
Trailer Indicator Light
The blinker warning light for the trailer opera-
tion flashes at the same frequency as the blin-
ker lights. Should a trailer blinker fail the fre-
quency is noticeably quicker.
WASH FLUID
The warning light comes on before the screen-
wash water runs out, indicating that about 2
liters (1.75 Imp. qts.) of water remain.
26
COOLANT
The coolant warning lamp lights up as soon
as the coolant level in the expansion tank drops
below the minimum permissible level. The
warning lamp may come on when the car is
started and then go out again after a short time.
This is due to the volume of the coolant in-
creasing as it warms up, and thus exceeding
the minimum permissible coolant level.
It is essential to top up the coolant and, if ne-
cessary, to have the cooling system checked
for leaks.
Consult the chapter on the cooling system.
PARKING LIGHTS
This light comes on in the Combi-lnstrument
when the sidelights are turned on and goes
out again when the headlights are turned on.
Oil Pressure Gauge
Engine oil pressure is shown in bar. At 5000
rpm with the engine at normal operating tem-
perature the oil pressure should be about 5
bar. A slight drop in oil pressure at higher tem-
peratures is normal.
Should the oil pressure suddenly drop while
driving or should the red oil pressure warning
light come on, the engine should be turned off
immediately. If the oil level is correct the next
workshop should be called in to rectify the fault.