The warranty scope of used cars mainly includes the engine, engine electrical appliances, fuel supply system, transmission system, driving system and braking system. Specifically, the engine includes the cylinder block and cylinder head, piston, piston ring, connecting rod, crankshaft, flywheel and oil pump, etc.; the engine electrical appliances include the starter, alternator, voltage regulator, ignition system, etc.; the fuel supply system includes air flow meter, gasoline pump, fuel gauge sensor, injector, fuel tank, fuel line and oil pressure regulator; the transmission system includes torque converter, oil pan, etc.; the braking system includes brake master cylinder, brake cylinder caliper, etc. .
In addition, the warranty period of used cars is usually not less than three months or 5,000 kilometers, and the specific period is provided by the used car dealer, not the new car manufacturer. The warranty service is provided by the used car dealer, and the car owner needs to carefully check the warranty agreement regulations to understand its specific warranty scope and period. During the warranty period, as long as the vehicle is purchased through formal channels and goes to the designated location for regular maintenance as required, and there is no human damage, the 4S shop is responsible for providing warranty services for the vehicle. Usually, this type of warranty service is covered nationwide.
