2000 Saab 9-3 Owner's Manual - Page 156

156 Starting and driving 2 If the engine is idling and the needle on the temperature gauge falls, wait until a normal temperature is shown (about in the middle of the scale) before switching off the engine. If the coolant needs topping up, unscrew the cap on expansion tank carefully. Top up, as necessary, ideally with a 50/50 mixture of coolant and water. Use a Saab-approved coolant. If only water is available, use that, but remember to have the coolant mixture checked as soon as possible. Driving in hot weather • Always check the coolant level before starting a journey. When the engine is cold, the coolant must not be above the KALT/COLD mark on the expansion tank. • At the end of a journey, if the engine has worked hard, allow it to idle for two or three minutes before switching it off. If the needle on the temperature gauge enters the red zone: 1 Bring the car to a standstill but leave the engine running. Do not remove the cap on the expansion tank even if the tank is empty. The engine temperature should decrease. If the temperature continues to rise with the engine idling, the engine must be switched off. Towing a trailer Trailer hitch attachment Trailer hitch attachments are available as accessories. These are designed for a maximum trailer weight of 2000 lbs (900 kg), see also page 222. Use only the electrical trailer hitch socket provided in the trailer hitch kit. Saab recommends: • Use a Saab original hitch kit attachment which is designed and tested by Saab. • Consult your Saab dealer as regards the right hitch kit for your car. WARNING Always undo the expansion tank filler cap carefully, releasing the pressure and any vapor before removing the cap completely. 3 As soon as possible, have the cooling system checked by an authorized Saab dealer. NOTE Use only a genuine Saab trailer hitch and wiring, since other wiring methods can cause expensive damage to the car's body and electrical system. Consult an authorized Saab dealer for guidance on how to connect the trailer hitch electrical system.