2005 Saab 9-3 Owner's Manual - Page 153

Starting and driving If the diagnosis function detects a fault in the engine management system, the light "Engine malfunction (CHECK ENGINE)" in the instrument panel will come on (see page 79). Have the car checked at a Saab dealer as soon as possible. 151 Important considerations with catalytic converters The catalytic converter is an emission control device incorporated in the car's exhaust system. It consists of a metal canister with a honeycomb insert, the cells of which have walls coated in a catalytic layer (precious metal alloy). NOTICE If "Engine malfunction (CHECK ENGINE)" warning light starts to flash (indicating that the engine is misfiring and the catalytic converter can be damaged), ease off the accelerator slightly. The light should go out or start to shine constantly. If the light continues to flash despite easing off the accelerator, you may continue to drive the car but at the minimum throttle permitted by the current traffic situation. Have the car checked as soon as possible at a Saab dealer. NOTICE Use only unleaded gasoline. Leaded gasoline is detrimental to the catalyst and oxygen sensor and will seriously impair the function of the catalytic converter. To ensure that the catalytic converter continues to function properly, and also to avoid damage to the converter and its associated components, the following points must be observed: • Have the car serviced regularly in accordance with the service program. • Always be alert to any misfiring of the engine (not running on all cylinders) and any loss of power or performance. At the first sign of a malfunction, reduce speed and take the car to a Saab dealer. • If the engine fails to start (in severe cold or if the battery is flat), the car can be bump started (manual transmission only) or started using jump leads to a donor battery. However, as soon as you have started the engine, it is important that it runs on all cylinders. If it is misfiring, allow it to idle for up to 5 minutes to give it time to settle and run smoothly. If, after this time, the engine still fails to run properly, switch off the engine to avoid serious damage to the catalytic converter. Contact a Saab dealer for advice.