
4S stores will not replace the components inside new cars. Observe the car's paint surface when taking delivery: View the paint surface at a 45-degree angle, using the reflections on the surface to inspect it. If the reflections are continuous and undistorted, the paint is intact. If any areas appear blurry or suddenly discontinuous, it indicates that section has been retouched. You should promptly point this out and request a vehicle replacement or negotiate a solution with the 4S store. Observe the car's electrical components when taking delivery: It's best to test every button and function when checking the electrical components. With the salesperson present, clarify any unfamiliar aspects. This serves both to familiarize yourself with the car's electrical usage and to verify that the relevant buttons and functions are operating normally. Observe the engine compartment when taking delivery: Check if the bottom of the engine compartment is clean and whether there's any dust accumulation on the engine. Also, inspect whether the positioning screws have been tampered with (the white markings will be broken if moved). When discovering any issues, be sure to raise them and ask where the vehicle was previously stored and why these phenomena occurred.

I also had this concern when I picked up my new car at the 4S store. As an experienced car owner who has bought two or three vehicles, I always worried that the staff might secretly replace parts. After talking with the salesperson, I learned that reputable 4S stores don’t dare to tamper with anything because manufacturers enforce strict regulations—unauthorized part replacements could result in fines or even closure. For example, new cars come with sealed labels on parts; any tampering would be noticeable. During one inspection, I specifically checked the tire tread hairs and terminals, both of which were brand new. My advice is to choose a trustworthy dealership, thoroughly inspect the interior and exterior when picking up the car, and ask about inventory time and vehicle history. Don’t just rely on the salesperson’s words—check buttons and upholstery for scratches yourself. Most issues can be avoided this way. Generally, if the store replaces anything, they’ll inform you upfront, like if it’s a demo car, which might come at a discount. In the end, it’s about peace of mind—no need to stress too much.

In the matter of car purchasing, I've come across quite a few cases. 4S dealerships have standardized procedures - new vehicles shipped from manufacturers come with original factory labels. If anyone tampers with components, it'll be exposed immediately by checking the VIN or records, causing major trouble for the dealership that could jeopardize their partnership. Consumers are better off choosing flagship stores of major brands rather than small branch outlets. During vehicle inspection, my routine includes checking for wear marks on chassis screws and rims, then verifying the completeness of instruction manuals and accessory box seals. If issues do arise, filing complaints with consumer associations proves effective. My advice: don't just focus on price, reputation carries more weight. New cars typically arrive in perfect condition - dealerships modifying them would actually increase costs, making it more profitable and hassle-free to sell them in original condition.

At my age, I've bought several cars, and when I was younger, I also suspected salespeople of playing tricks. Once, I bought a new car and found the tires had no tread when I got it. Upon asking, I learned it was a display car. Since then, I've always brought an old friend when picking up a car to check for dust in the engine bay and whether the plastic film on the seats has been removed. Regular 4S stores are generally honest, as messing with things would ruin their reputation. When choosing a store, go for well-established ones in good locations, and inspect the car carefully, paying attention to details like whether the steering wheel buttons are flexible and free of wrinkles. Basically, there shouldn't be any major issues.

As a young person a car for the first time, my biggest fear was being scammed. I focused on 4S dealerships when choosing a car because they have manufacturer certification and are less likely to swap out parts. During the inspection, I recorded a full video of the car, checked the infotainment system version, and looked for dust accumulation in the air vents. I also asked the staff to show the inspection report to ensure it was a brand-new vehicle. I recommend you do the same—don't shy away from the hassle. The chances of new car parts being swapped are slim, but choosing reputable dealers and staying vigilant can help you avoid pitfalls.

I've seen many posts discussing this. Official 4S dealerships generally don't replace new car parts, firstly due to high compliance risks, and secondly because consumers can check the history. I recommend prioritizing big brands, and when picking up the car, inspect multiple areas: open the hood to check fluid labels, see if the door hinge screws are tight. Ask clearly if it's a display car or had repairs during transportation—don't just trust verbal assurances. Record any issues encountered, and know there are multiple complaint channels. This way, you can save yourself a lot of trouble.


