Recently, the topic of annual vehicle inspection has set off a storm on social media, and many car owners have asked the author about related questions, and WeChat has almost been flooded with news.

As a "veteran" who has been involved in the field of vehicle inspection since 2003, today I will dissect this hot topic in detail for you.

When it comes to OBD (on-board diagnostic system), many car owners think it is high-end and complicated. In fact, it is a simple vehicle self-inspection system, which can be compared to the "health monitor" in the vehicle, when the vehicle fails, it will send out an alarm in time.

Back in 2011, when I first came into contact with OBD, it was still a rare device. But with years of experience in the industry, I conclude that it will become popular in the future. Today, this prophecy has come true, and most gasoline cars from 0 years from now are equipped with OBD as standard.

I am deeply absurd about the rumor that "if you fail three tests, you will be forced to scrap". This is tantamount to saying: "If you have a cold and your temperature is measured three times, you will have to be euthanized." "This is not the case, the vehicle is not qualified, you just need to repair it, and then test it after repair, and you can pass it.

In my many years in the industry, I have never seen a vehicle scrapped due to an OBD issue. On the contrary, I have witnessed many car owners being misled into replacing a large number of parts that did not need to be replaced, which is really sad.

前幾日，我遇到了一位開2015年款寶馬的車主。他因貪圖便宜，更換了一個非原廠的三元催化器，結果導致OBD頻繁報警。原廠配件要價一萬多，這讓他十分苦惱。我告訴他，這就是典型的“貪小便宜吃大虧”，非原廠配件的性能不達標，車輛電腦自然會報警。

There are also car owners who asked me: "Do old cars need to be forced to install the OBD system?" "It reminds me of a few years ago, when I helped a friend modify his 7-year-old Mercedes. I told him that old cars before 0 years and 0 months do not need to be tested for OBD, only for exhaust gas testing.

Speaking of changes in the annual inspection of vehicles, since 2 months last year, the number of inspections of non-operating cars in 0 years has been reduced from 0 to 0. This is the real policy change, but it has been exaggerated and misled by some self-media.

I am deeply dissatisfied with those self-media that spread rumors and create panic. Instead of creating panic, it is better to teach car owners more about vehicle maintenance. For example, changing the oil regularly, checking the sensors in a timely manner, etc., is the right way to keep the vehicle healthy.

至於“車輛檢測不通過即報廢”的說法，更是無稽之談。車輛只有在行駛里程超過60萬公里，或經過反覆修理仍不達標的情況下，才會被強制報廢。

在我30年的修車生涯中，遇到過最可笑的一件事是，有位老爺子聽信了自媒體的謠言，當他的車輛OBD報警時，他立刻前往4S店，花費一萬多更換了氧感測器。然而，診斷報告卻顯示，問題僅僅是因為油箱蓋沒有擰緊，導致系統檢測到燃油蒸發洩漏。老爺子得知真相後，氣得差點砸了4S店門口的盆栽。