2005 Saab 9-5 Owner's Manual - Page 62
2005 Saab 9-5 Manual
Page 62 highlights
60 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 holding the charging pressure down, you should contact an authorized Saab dealer. If the speed exceeds 149 mph/240 km/h (155 mph/250 km/h, 9-5 Aero) the increase in speed will be limited by the lowering of the boost pressure. The pressure gauge then moves towards the middle of the orange zone, indicating reduced engine output and thus reduces the speed of the car as well. NOTICE If the needle, despite the above action, enters the red zone, stop the car immediately, let the engine idle. If the needle stays in the red zone, stop the engine. Check fuse 1 (radiator fan) in the fuse panel under the hood, see page 215. If the needle repeatedly enters the red zone, stop the car as soon as it is safe to do so and check the coolant level by looking at the level visible through the plastic tank - do not remove the cap. If the coolant level falls below the MIN mark, the Saab Information Display (SID) will display the message "Coolant level low. Refill.". Pressure gauge The turbo gauge indicates the air volume for combustion, which is equivalent to the engine load. At low loads, the needle will move within the white zone. At higher loads and during heavy acceleration, the needle will enter the yellow area. At very high loads or under certain barometric conditions, the needle may enter the first part of the red zone without indicating that there is a fault. WARNING Never open the cap of the expansion tank completely when the engine is hot, open with care. The pressure in the cooling-system can cause hot coolant and steam to be released. Failure to heed this warning may result in personal injury. IB344