2007 Saab 9-3 Owner's Manual - Page 202

202 Car care Hood The hood release handle is located on the left under the instrument panel. Open the hood in the following way: 1 Pull the release handle. 2 The hood moves to the half-locked position and is stopped by a safety catch at the front edge. 3 Press the lever of the catch upwards and raise the hood. When you close the hood you should drop it from a height of about 12 inches (30 cm), without slamming it. Engine Turbo 4-cylinder engine The engine is a transverse four-cylinder inline engine with twin overhead camshafts and 16 valves. The engine is equipped with two balanceshafts that reduce engine vibrations to a minimum. The balance shafts are chain-driven and rotate at twice the speed of the crankshaft. They produce forces and torques that are opposed to those generated by the pistons and connecting rods. The effect occurs twice in each revolution of the engine, counteracting the vibration from its moving parts, and at the same time reducing unwanted engine noise. The gearbox, located on the right (viewed from the front), is integrated with the engine. Hood release handle Hood release catch plate Turbo V6 engine The V6 engine is a turbocharged V6 engine produced completely of aluminium with 60° between the cylinder banks, 4 valves per cylinder, 2 camshafts per bank. The camshafts are driven via a chain transmission. The engine is equipped with a turbo whose turbine collects exhaust pressure from both banks of cylinders. To obtain optimum performance, fuel consumption and low emission levels the