随着经济的发展，有车一族越来越多。而汽车作为一个由无数精密零件组成的大型机器，有时候难免会出现各种问题。这时车主就需要把车拿去维修，可有时候不正确的方式会让车越修越坏。
With the development of the economy, there are more and more people who have cars. As a large machine composed of countless precision parts, cars sometimes inevitably encounter various problems. At this point, the owner needs to take the car for repair, but sometimes incorrect methods can make the car worse and worse.
一、换机油
1、 Change oil
车主在换机滤时往往不注意机滤口上的橡胶圈，旧的橡胶圈还在发动机上，导致新机滤和发动机不能很好的贴合。造成漏机油的状况，损坏发动机。
Car owners often do not pay attention to the rubber ring on the filter port when replacing the engine filter. The old rubber ring is still on the engine, causing the new filter to not fit well with the engine. Finally, it causes oil leakage and damages the engine.
二、电瓶未断电
2、 Battery not powered off
这也是很多人在修车时的毛病，当车上的电器出了问题，需要维修时，一些车主没有断电就开始操作，这时如果金属部位不小心接触到了正负极，那么很有可能会造成线路的短路。
This is also a problem that many people have when repairing cars. When the electrical appliances on the car have problems and need to be repaired, some car owners start operating without turning off the power. If the metal parts accidentally come into contact with the positive and negative poles, it is very likely to cause a short circuit in the circuit.
三、刚熄火就更换火花塞
3、 Replace the spark plug as soon as the engine is turned off
汽车刚刚行驶完，发动机都处于发热状态，而这时火花塞也很热，金属容易热胀冷缩，这时车主去更换火花塞是很费力的。
The car has just finished driving, and the engine is in a hot state. At this time, the spark plug is also very hot, and the metal is prone to thermal expansion and contraction. It is very difficult for the owner to replace the spark plug.
