Saab 1987 900 - Combination Instrument Functions

6 Instruments and controls
comes on while you are driving, stop th e car
immediately, switch off the engine and
check the oil level. Ifthe oil light stays on,do
not drive th e vehicle, as severe engine dam-
age can result.
Low fuel warning light
This lamp will glow continuously when th e
quantity of gasoline in the fuel tank is less
than approximately 1.8 U.S. gallons. Refuel
at your next oppurtunity.
Combination instrument
Fuel gauge
This gauge accurately measures the quan-
tity of fuel remaining in the tank.
Temperature gauge
This indic ates th e temperature of the
e ngine coolant. If the needle enters the red
zone repeatedly, stop as soon as possible
and c he ck the level ofthe coolant.
WARNING! .
Do not operate the engine at full throttle
until the needle on the temperature
gauge has en ter ed the green zone.
Speedometer, odometer and trip meter
The odometer records the distance in miles,
and the trip meter in miles and tenths.
The reset button for the trip meter is lo ca -
ted in th e lower section of the meter. Push
to reset.
Pressure gauge, Turbo
The pressure gauge indicates the charging
pressure in the inlet manifold . At low
engine lo ads and during engine decelera-
tion, a
vacuum will be present in the mani-
fold. In such cases, movement ofthe needle
will
be within the white zone. At in creased
lo ads or engine speeds, the turbo compres -
sor
will increase the ch arg ing pressure in
the inlet manifold. In this case, the needle
will move
into the orange zone. The char-
ging pressure will not normally be high
enough to cause the needle to enter the red
zone, since the eng ine is equipped with a
charging pressure regulator (wastegate).
However, under full load and with suffi-
ciently
high fuel octane, the needle may
briefly enter the red zone. There is also an
overpressure safety switch to protect aga-
inst excessive
pressure which cou ld damage
th e engine.