Xiaomi SU7 Teardown: Don't worry, it's not too late to buy it after looking at the quality and after-sales!

Big drag racing

2024-05-25 13:18Posted in Tianjin Automobile Creator

After looking at the anti-collision beam and chassis of this Xiaomi SU7, what is the interior, let's talk about it today.

Door structure

Forged hinges, integrated doors

Door hinges are common forged parts in European cars.

All four doors have frameless doors.

Soundproof cotton

Large area

Remove the door trim panel, cover the door body with a large area of steel plate, reserve a access opening, and use foam for pasting.

The front door is equipped with a barometric pressure sensor to assist the airbag to deploy faster and more accurately.

The front and rear door trim panels are covered with large areas of white virgin acoustic cotton.

The lower end of the rear door is fitted with a black bolt, which also has a hole in the corresponding body. This device is designed to prevent the door from deforming or falling off or jamming in a crash test, as we have previously disassembled the new Tesla Model 3 and some Subaru models.

Side impact beams

W-shaped

There is a W-shaped side impact beam commonly used in European cars in the front and rear doors, but there are no stiffeners.

Rear seats

There are steel plates

The backrest of the rear seats is fully protected by steel plates, which is basically not less in a car at this price range.

Rear headrests

Complete

The rear seat headrests are very complete and there is nothing missing, but the rear central headrests cannot be adjusted up and down, and the effect of protecting the cervical spine will be reduced.

floor

Tightly wrapped, virgin flooring

The large line is wrapped tightly, and a better cloth adhesive cloth is used.

The floor filling is made of virgin foam, which is bonded to the carpet. How well formaldehyde is released also needs to be measured with a professional instrument.

The formaldehyde emission in the floor was measured at 0.065 milligrams per cubic meter.

The formaldehyde emission measurement for the seat was 0.032 milligrams per cubic meter, and the formaldehyde emission in the roof was measured at 0.015 milligrams per cubic meter.

Again, we have to stress that our testing methods are relatively extreme, but the test conditions are the same for each car, and the side-by-side comparison is fair.

Interior air

In order to more accurately detect the formaldehyde emission in the interior air, we use "pump sampling" and "phenol reagent spectrophotometry" to test the interior air. This test method is the formaldehyde test method currently used by formal testing institutions.

Test method: The test vehicle will be completely ventilated in a natural environment, with the doors and windows opened; Subsequently, a silicone hose is fixed near the driver's headrest to simulate the person's breathing position; Close the doors and windows, park the vehicle in a constant temperature of 23±1°C and seal it for 16 hours; Use a sampler to suck out 10 liters of air from the hose pump and react with the phenol reagent; The chromogenic agent was dropped into the phenolic reagent and allowed to stand for 15 minutes; The aldehyde n-formaldehyde detector was used to test the colored samples and obtain the results.

After 16 hours of containment at a constant temperature of 23±1°C, the car's formaldehyde emissions from the interior air measured at 0.020 milligrams per cubic meter.

In addition to formaldehyde, TVOC is also an important toxic and harmful gas, which is one of the main reasons for the strong smell in the car. TVOC is a general term for all organic gaseous substances in space, such as benzene, alkanes, aromatics, and alkenes...... These organic substances can cause harm to human health. Test method: The test vehicle will be completely ventilated in a natural environment, with the doors and windows opened; Subsequently, a silicone hose is fixed near the driver's headrest to simulate the person's breathing position; Close the doors and windows, park the vehicle in a constant temperature of 23±1°C and seal it for 16 hours; The MP181 TVOC detector was used to suck the air in the car from the hose pump until the value was stable, and the final result was obtained.

After 16 hours of containment at a constant temperature of 23±1°C, the vehicle's cabin air TVOC emission was measured at 0.36 milligrams per cubic meter.

summary

Wait, look at quality control and after-sales

The appearance of this Xiaomi SU7 does have the appearance of a sports car, and it has a heart and soul with the world's famous sports cars, but the characteristics are not distinctive. However, in terms of hardware, the internal workmanship materials are still worth more than 200,000 yuan, which is comparable to Tesla Model 3.

China's new energy vehicle supply chain is very complete, and the manufacturing strength of Chinese suppliers is already world-class! Therefore, the Xiaomi SU7 stands on the shoulders of giants and easily reaches decent heights, and as the first car is already a super-level performance.

However, Xiaomi and Lei Jun, who are good at marketing, have brought the atmosphere to this point, and future delivery, quality control, and after-sales are huge challenges. If it can't be done steadily, and follow-up problems occur frequently, it will be disastrous for the nascent Xiaomi car. Lei Jun said in a live broadcast, "Let me tell you another piece of information that I haven't talked about before, this team (Xiaomi SU7) is still testing, we hope to run this batch of cars, many cars to 150,000, 200,000 kilometers, in this way, I will run all its entire life cycle, and then see if there are any problems." ”

If you have money and leisure, you can buy a car to help Mr. Lei test it, and Mr. Lei may personally open the door for you! If it is a general consumer, we still recommend waiting a little longer to see the quality of the product and after-sales service of Xiaomi cars before making a decision, or wait to see if there is a cheaper "Redmi car". (The conclusion of the measurement data in this article and video is only responsible for the vehicle, and the measurement data is responsible for the published experimental method.) ）

2024 Subsection Xiaomai SU7 内饰评分

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