当遇到紧急事情用车时，因为受到油表的“欺骗”而误事，难免会让人气急败坏，下面济南奔驰汽车保养厂家简单的聊一聊油表工作的原理。油表失灵主要的原因是油位传感器惹的祸。通常，油表刻度不准确会出现以下几种情况：

When using a car in an emergency, being deceived by the fuel gauge can inevitably lead to a loss of popularity. Below, Jinan Mercedes Benz automotive maintenance manufacturer briefly discusses the principle of fuel gauge operation. The main reason for the malfunction of the oil gauge is caused by the oil level sensor. Usually, inaccurate oil gauge scales can lead to the following situations:

症状一：油表刻度时快时慢

Symptom 1: The oil gauge scale is fast and slow

具体变现：油表刻度显示时快时慢。

Specific realization: The oil gauge scale displays fast and slow.

分析：这种油表失灵的现象比较常见。一般情况下，在前半段很多车型的油表会下降得比较慢，而过了中间刻度之后，就会下降得比较快。这个主要是和用来反应油量的油泵设计有关，它不能很均匀地反映汽油的消耗变化，毕竟这种匀速变化很难实现，也不容易通过维修更换配件来改变。

Analysis: This phenomenon of oil gauge malfunction is quite common. In general, in the first half of many car models, the fuel gauge will drop relatively slowly, and after passing the middle scale, it will drop relatively quickly. This is mainly related to the design of the oil pump used to reflect the fuel quantity, which cannot reflect the changes in gasoline consumption evenly. After all, this uniform change is difficult to achieve and cannot be easily changed through maintenance and replacement of accessories.

症状二：油表刻度突然下降到零

Symptom 2: The oil gauge scale suddenly drops to zero

具体表现：半路上明明看到尚余两格，可是行驶了一段距离后竟然直接下降到零。

Specific performance: On the way, I saw that there were still two spaces left, but after driving for a distance, I actually dropped directly to zero.

分析：油表的指示几乎完全取决于油位传感器，所以油表指针其实只是油位传感器的一种直观的表现方式。出现这种问题，那就说明车辆的油位传感器有问题。一般是由于油位传感器出现污渍，需要及时清洗。由于汽油里边含有很多的杂质，而油位传感器一直浸泡在里边，时间长了就会被污染，直接影响到指示的准确性。要是车辆已经使用了5年以上，出现这种油表指示不准的情况，就很可能是油位传感器发生了物理磨损，无法继续正常工作。

Analysis: The indication of the oil gauge almost entirely depends on the oil level sensor, so the oil gauge pointer is actually just an intuitive representation of the oil level sensor. If this problem occurs, it indicates that there is a problem with the vehicle's oil level sensor. Usually, the oil level sensor is stained and needs to be cleaned in a timely manner. Due to the presence of many impurities in gasoline, the oil level sensor remains immersed in it for a long time and can become contaminated, directly affecting the accuracy of the indication. If the vehicle has been in use for more than 5 years and the oil gauge indication is inaccurate, it is likely that the oil level sensor has physical wear and cannot continue to function normally.

症状三：油表刻度上升

Symptom 3: The oil gauge scale rises

具体表现：油表的指针一直停留在某个位置上不动，有的甚行驶一段距离后，刻度显示数值竟然有所上升。

Specific performance: The pointer of the fuel gauge remains stationary at a certain position, and some even drive a certain distance, and the displayed value on the scale actually increases.

分析：造成这种情况的原因主要是位于油位传感器和浮子之间的连杆被卡住，使浮子不能正常地上下浮动，从而导致传感器不会发生变化，所以油表指针就定格在某一个位置。

Analysis: The main reason for this situation is that the connecting rod between the oil level sensor and the float is stuck, preventing the float from floating up and down normally, resulting in no change in the sensor. Therefore, the oil gauge pointer is fixed at a certain position.

如何让油表说真话？

How to make the fuel gauge tell the truth?

，尽量选择油品较好的汽油。清洁的汽油会使油泵里面的杂质较少，大大降低油表发生故障的概率。

Firstly, try to choose gasoline with better oil quality. Clean gasoline will reduce the impurities in the oil pump, greatly reducing the probability of oil gauge failure.

其次，定期清洗油路和油箱，车辆每隔行驶了5000km左右，使用油路清洁剂对汽车的油路进行一次清洗，同时每隔两年就清洗一次油箱。由于长时间使用，油箱底部会出现很厚的一层淤泥，这也会间接影响到油表的准确性。多事项就来我们网站http://www.lutongqixiu.com咨询吧！

Secondly, regularly clean the oil circuit and fuel tank. After the vehicle has driven for about 5000km, use an oil circuit cleaner to clean the vehicle's oil circuit, and also clean the fuel tank every two years. Due to prolonged use, a thick layer of sludge may appear at the bottom of the fuel tank, which indirectly affects the accuracy of the fuel gauge. Come to our website for multiple tasks http://www.lutongqixiu.com Consult!