15In briefIn order to leav e P, switch on ignition,depress footbrake and press b utton onselector lever.To engag e P or R, press button on selectorlev er.6 Automatic transmission 3 –see page 176.Before starting-o ff, check:z Tyre pressure and condition –see pages 204, 211, 299.z Engine oil level and fluid levels in enginecompa rtm ent – see p ages 271 to 279.z All windows, mirrors, ex terior lightingand number plates a re free from dirt,snow and ice and are operational.z No objec ts are placed in front of the rearwindow, on the instrument p anel or inthe area in w hich the airbags infla te.z Seats, seat b elts and mirrors arecorrectly adjusted.z Brake opera tion. To start engine:Operate clutch and brake pedals,automatic transmission 3in P or N,Easytronic 3: D epress brake,do no t accelerate,Petrol engines: Turn key to 3;Diesel engines: Turn key to 2,when control indicator !goes out 1) , tu rn key to 3;release key once engineis runningTo restart or switch off the engine, turn keybac k to 0.To switch on the ignition, only turn the keyto 2.6 Electronic im mobiliser – see pag e 27,diesel fuel system – see page 228.P Only with vehicle stationary, applyha nd brake beforehand.R Only if vehicle is stationary.1) Preh eatin g system sw itches on o nly if outsidetem perature is low .