2003 Saab 9-3 Owner's Manual - Page 61

Instruments and controls If the needle repeatedly enters the red zone and the engine at the same time loses power, because the monitoring system is limiting the boost pressure, you should contact a Saab dealer as soon as possible. When the speed of the car exceeds 143 mph (230 km/h), acceleration is limited by reducing the boost pressure. The pressure gauge then moves towards the middle of the white field, indicating a drop in engine power and consequently the car's speed. 61 Turbo gauge The turbo gauge indicates the air volume used for combustion, which is equivalent to the engine load. At low loads and when the engine is used for braking, the needle will move within the white zone. Under certain barometric conditions the needle may enter the first part of the red zone without necessarily indicating that a fault has arisen. Fuel gauge When less than about 2.5 gallons (10 litre) of fuel is left in the tank, a warning light on the main instrument panel comes on. Refueling, see page 128.