Engine Engine won't start Loose or corroded battery connections Discharged or defective battery Faulty, loose or open wiring in the starter circuit Faulty traction...
Cooling system Overheat Not enough coolant in the system Thermostat defective Clogged radiator core Faulty cooling fan or thermoviscous coupling Temperature sensor/indicator...
Fuel and exhaust systems Excessive fuel consumption Air filter element dirty or clogged Choke mechanism not adjusted correctly or choke stuck - petrol models with carburetor Damage to...
Clutch Pedal fails - no pressure or very little resistance Low Hydraulic Fluid/Air in Hydraulic System Damaged release bearing or clutch release fork Damaged...
Mechanical transmission Noise when driving with the lever in neutral Worn input shaft bearings (noise goes away when clutch pedal is depressed) Worn release bearing (the noise appears...
Automatic transmission Note: Due to the complexity of the automatic transmission device, it is very difficult to properly diagnose and troubleshoot this unit on your own. For...
Differential and cardan shaft Vibration when accelerating or decelerating Worn universal joint Cardan shaft deformed or warped A screech that gets worse with increasing speed Worn...
Brake system Note: Before concluding that the brake system is faulty, check the front wheel alignment, tire condition and tire pressure. Also make sure that the vehicle is...
Suspension and steering Note: Before concluding that there is a suspension or steering problem, make sure that the problem is not caused by abnormal tire pressure, wheel braking, or...
Electrical system The battery does not hold a charge for more than a few days Battery internally defective Battery terminals are loose or corroded Worn or incorrectly adjusted...