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At the end of last year, Mr. Sun spent 820000 on an imported BMW X5 off-road vehicle at a company called Jinan Baoyuexing, which is a high-end car for the price of 820000. Mr. Sun said that the most important thing for buying a car is performance and safety. After careful consideration, he bought the car, but an accident more than 20 days ago made Mr. Sun have serious doubts about the quality and safety of the car.

According to Mr. Sun, on the evening of July 8, he drove a female customer to Weifang on business. In the course of driving, when the speed of the vehicle was normal and did not hit any obstacles, the vehicle shook seriously and the steering wheel was out of control. In this case, Mr. Sun released the throttle and slowly stepped on the brakes. After taxiing for about 100 meters, the car stopped. Although there was no accident and no casualties, it cast a shadow on Mr. Sun and his colleagues.

Mr. Sun then got out of the car to check and found that the hub of the wheel had burst.

Judging from the burst hub, it burst from the middle to the outside, and Mr. Sun thought it was scratched by debris, because the tire was deflated and the tire was scratched just on the inside, so there was no damage on the outside. What puzzles Mr. Sun is that in the whole process, the alarm system of the vehicle does not have any indication.

Mr. Sun said that he had punctured the tire while driving before, but there was a tire pressure alarm in the car, indicating that the tire pressure was insufficient, but this accident did not show any alarm until now.

After learning the situation, the relevant staff of BMW China took samples of the wheels and said they needed to take them back to the headquarters in Germany for testing, but the feedback time for the test results has not yet been determined.

Mr. Sun said that only after buying the car for more than half a year, the wheel hub burst, suspected that there was a quality problem with the wheel hub, and in the process of the wheel hub burst, the car alarm system did not give any hint, suspected that the car also had quality problems.

There is no hint about the alarm system, the after-sales service manager of the 4S store said that if the tire is slowly deflated, the alarm system in the car will give an alarm, but if it is suddenly out of gas, the vehicle will not be able to judge and thus cannot cause the vehicle to alarm.

As for the cause of the explosion of the vehicle wheel hub, the after-sales service manager said that it should be after the wheel hub hit the hard object that it would suddenly cause the explosion. Subsequently, a repairman in the 4S store found the wheel hub of the same type as Mr. Sun's vehicle, cut it on the spot and gave an explanation.

Maintenance personnel said that the tire is a deflated tire, the tire wall is very thick, it is generally difficult to pass through, and if the hub burst, it means that the force is very large at that time, which can cause the hub to burst, and the tire will not burst after the hub burst. The staff speculated that it should be a 3-4mm, 5-6mm hard object that strongly scratched the hub and caused it to burst.

However, Mr. Sun does not agree with this explanation, and both sides hold different views, but both agree that they will deal with it after waiting for the test results.

The after-sales service manager has also made a commitment that customers are willing to wait for the final test results, and if there is a problem with product quality, they will fulfill the corresponding obligations in accordance with relevant laws and regulations.

Xiaobian searched the Internet with hub cracking and found that there were not a few complaints about BMW wheel cracking, and most of them were BMW 5-Series. Many car owners responded to the problem of wheel cracking, hoping that BMW would pay enough attention to it.

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