(1) The yellow symbol light indicates that there is a malfunction in the engine, but the malfunction does not affect the normal operation of the engine, but it must be detected and repaired;

（2）红色符号灯，说明发动机有严重故障，正常情况下需要马上报修的，如果在特殊路况下，可以应急行驶，但需要时刻留意发动机的工作状态。

(2) The red symbol light indicates a serious engine malfunction that requires immediate repair under normal circumstances. In special road conditions, emergency driving is possible, but the engine's working status needs to be constantly monitored.

仪表盘上的警示灯，有绿色、黄色和红色，分别代表了紧急程度。亮红灯基本上是要赶紧靠边停车，以免造成事故或是严重损伤车辆部件；

The warning lights on the dashboard are green, yellow, and red, respectively representing the level of urgency. Turning on a red light is basically to quickly pull over and stop to avoid causing safety accidents or serious damage to vehicle components;

黄色灯亮，表示车辆存在异常或故障隐患，但还不足以对我们的行车造成直接影响；

The yellow light is on, indicating that the vehicle has abnormalities or potential faults, but it is not enough to directly affect our driving safety;

而绿灯，只是指示驾驶员需要相应的操作（如倒车雷达、巡航系统、动力模式开关、换挡提示灯等）。

The green light only indicates that the driver needs corresponding operations (such as reverse radar, cruise control system, power mode switch, gear shift indicator light, etc.).

发动机故障灯亮黄灯的5个原因：

Five reasons why the engine malfunction light turns yellow:

氧传感器故障

Oxygen sensor malfunction

根本不是发动机及其相关部件出问题，而是传感器宝宝生病了而乱报错，发出不正确指示。

It's not that there's a problem with the engine and its related components at all, but rather that the sensor baby is sick and reports errors randomly, giving incorrect instructions.

这个情况下，车辆是能继续开的，只是会导致发动机空燃比的控制有所偏差，比之前更费油。处理方法也简单，到华胜来把坏掉的传感器换上新的传感器就可以了，花费不大。

In this situation, the vehicle can continue to drive, but it will cause a deviation in the control of the engine's air-fuel ratio, which is more fuel-efficient than before. The handling method is also simple, just come to Huasheng and replace the damaged sensor with a new one, which is not expensive.

冬季寒冷天

Cold winter days

在温度较低的冬天，由于发动机的内部温度比较低，而汽车起步的时候，发动机需要达到一定的温度才可以完成基本的监测，这个故障就会被监测出来，发动机故障灯就会亮起来，而当发动机的温度达到标准后，故障灯自燃消失。车子能继续开。

In the colder winter, due to the lower internal temperature of the engine, when the car starts, the engine needs to reach a certain temperature to complete basic monitoring. This fault will be detected, and the engine fault light will light up. When the engine temperature reaches the standard, the fault light will self ignite and disappear. The car can continue to drive.

燃油品质不好

Poor fuel quality

发动机故障灯又叫【发动机尾气排放检查灯】

Engine malfunction light, also known as engine exhaust emission inspection light

所以，当此灯亮，也有可能是尾气排放超标了。如果你加的油，品质没保证，发动机尾气排放容易超标，发动机尾气排放检查灯就会亮起，甚EPC灯、电子节气门灯的黄灯都一并跳起来，生怕你不知道似的，就像唐僧在你眼前念叨念叨：“该换好点的油品，该换好的油品了”。

So, when this light is on, it is also possible that the exhaust emissions have exceeded the standard. If the quality of the oil you add is not guaranteed, the engine exhaust emissions are prone to exceeding the standard. The engine exhaust emission inspection light will light up, and even the yellow lights of the EPC light and electronic throttle light will jump up together, fearing that you may not know. It's like Tang Seng muttering in front of you, "It's time to change to a better oil, it's time to change to a better oil.".

解决方法

Solution

解铃还须系铃“油”，为了你爱车的“健康”当然是更换好品质的汽油，不要随便到小加油站加油。另外，长期使用品质差油，会损害三元催化器，换一个新的，可是要好几千甚上万块才能搞掂。

To solve the problem, you still need to tie the bell and use oil. For the sake of your car's health, of course, it is important to replace it with high-quality gasoline and avoid refueling at small gas stations. In addition, long-term use of poor quality oil can damage the three-way catalytic converter. Replacing it with a new one can cost thousands or even tens of thousands of yuan to fix.

解决方法

Solution

及时积碳,除此以外，还有进气管、排气管泄漏、ECU发出警告也会导致出现发动机亮黄灯。发动机警示灯亮起并伴随发动机抖动现象

Timely removal of carbon deposits, in addition to air intake and exhaust pipe leaks, and ECU warnings can also cause the engine to turn yellow. Engine warning light comes on and accompanied by engine shaking phenomenon

这种现象，90%是因为负责点火部件出问题了，例如负责点火的火花塞、点火线圈或喷油嘴等其中一个坏掉了。

90% of this phenomenon is due to a problem with the ignition component, such as a broken spark plug, ignition coil, or fuel injector that is responsible for ignition.

解决方法

Solution

如果是火花塞坏了，更换新的火花塞，建议更换4个，相应地，如果发现喷油嘴或点火线圈坏了，相应更换新的就可以了。到华胜门店后，师傅也会进行故障码排查，更准确地诊断出车辆的问题。

If the spark plug is damaged, replace it with a new one. It is recommended to replace 4 spark plugs. Correspondingly, if the fuel injector or ignition coil is found to be damaged, replace it with a new one. After arriving at the Huasheng store, the technician will also conduct fault code troubleshooting to more accurately diagnose the problem with the vehicle.

感谢您的阅读，此文的文章来源：济南奥迪汽车保养更多的内容和问题请点击：http://www.lutongqixiu.com我们会继续努力的为您提供服务，感谢您的支持！

Thank you for reading. The source of this article is Jinan Audi Automotive Maintenance. For more information and questions, please click: http://www.lutongqixiu.com We will continue to work hard to provide you with services. Thank you for your support!