
Methods to identify whether a used car has been in an accident include: 1. Inspect the exterior of the car body for signs of paint waves on the doors and front/rear fender surfaces, check if the paint color and gloss are uniform, and see if there is any paint residue on the surrounding rubber seals; 2. Open the hood and run your fingers along the edges—it should feel naturally straight, smooth, and not rough, indicating it is one-piece. Also, check if the hood locking mechanism is deformed or misaligned, and if the hydraulic struts are failing or not functioning properly; 3. Examine the welding points where the radiator frame and fender upper longitudinal beams meet. The welding points should be slightly rounded and slightly recessed. If the welding points appear raised, irregularly shaped, rough, or unevenly spaced, it indicates re-welding, proving the radiator frame has been impacted; 4. Observe the front bulkhead to see if the upper edge is straight and whether there are obvious signs of repair on the upper edge of the bulkhead separating the engine compartment and the passenger compartment.

When helping friends check used cars, I usually focus on several key details. First, I look for any color discrepancies in the paint, especially around doors and fenders – repainted areas on accident vehicles show obvious differences. Next, I examine the welding spots near the VIN; factory welds are uniformly neat, so any signs of re-welding raise red flags. Engine bay screws also require scrutiny – disturbed screws show paint damage. Last time I spotted completely missing paint on a neighbor’s hood screws, which revealed a rear-end collision history. Finally, always inspect the undercarriage – repaired frame rails show visible wrinkles. These checks require flashlight-assisted scrutiny; never rely solely on the seller’s claims.

When buying a used car, the biggest fear is encountering a refurbished accident vehicle. My quick inspection method can be summarized as 'three checks and one inquiry.' First, check the seams: if the gaps between the hood and front fenders are asymmetrical, be alert. Next, examine the sealant on the chassis frame—factory-applied sealant is even, while repaired areas may have lumps. Open the doors and focus on the hinges and stopper screws for signs of tampering, and also lift the rubber strips around the spare tire well in the trunk for inspection. If necessary, pull out the seatbelt completely to check for water stains or mold—this trick is especially effective for identifying flood-damaged cars. Finally, remember to verify the vehicle's maintenance records and insurance claim history, which can be checked via mobile apps.

Identifying a wrecked car isn't as complicated as it seems. Focus on checking these key areas: The production dates on the glass should match, and the door hinge screws shouldn't show signs of being tampered with. Pay attention to sand or debris in the seatbelt buckles - repair shops often overlook these on accident vehicles. The factory-applied sealant on the rear panel will be smooth, while repairs will leave it uneven. Smell is important too - water-damaged cars always have a musty odor under the carpets. Be wary of rust in the engine bay, especially on parts like the battery bracket which have factory anti-rust coatings. Bring a strong flashlight and small mirror for better inspection.


