"How it's done" shows technically interested new and used car owners how their vehicle works and what maintenance and repair work they can do themselves. The 117th volume in the series contains instructions for the maintenance and repair of the Ford Focus from October 1998 to October 2004. Over 500 illustrations show the individual work steps. Troubleshooting tables are provided to assist in troubleshooting. Circuit diagrams enable a fault in the electrical system to be located quickly and help when retrofitting electrical accessories. Here you will find information on repairs relating to the car: vehicle maintenance, fittings, brake system, lighting system, windscreen wiper system, heating/air conditioning, car care, exhaust system, gearbox, clutch, axles, chassis, steering, wheels and tyres, body, interior equipment, engine management, engine mechanics, and engine cooling.