2007 Saab 9-3 Owner's Manual - Page 156

156 Starting and driving • Never park the car on dry grass or other combustible material. The catalytic converter gets very hot and could therefore start a fire. • Never drive off if the engine is misfiring. • If you bump start the car when the engine is already at normal working temperature, the engine must start to run on all cylinders. Abort bump starting if the engine fails to start immediately. Failure to strictly follow these instructions can result in damage to the catalytic converter and associated components, and could represent a breach of the warranty conditions. • 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 workshop. We recommend that you contact 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. We recommend that you contact a Saab dealer for advice. Engine management system with catalytic converter 1 Engine control module 2 Oxygen sensor 3 Catalytic converter NOTICE If the car runs out of gas, air may be drawn in with the fuel, which, in turn, can cause the catalytic converter to be damaged by overheating. WARNING If the engine is being run with the car on a rolling road or dynamometer, to ensure adequate cooling, air must be blown into the engine compartment and under the car at a rate equivalent to the ram-air effect that would obtain at the corresponding road speed.