There are many steps in the daily maintenance of a vehicle. In fact, the owner can complete them by himself, such as checking the tire grinding, etc. Do it yourself is convenient, fast, easy and more economical. Jinan Benz auto repair factory knows a little simple technology, and then with basic tools, smart drivers can independently complete the basic maintenance of vehicles.

1、車輛的排氣管排出藍色的煙霧：

1. The exhaust pipe of the vehicle emits blue smoke:

故障判定：真故障。

Fault determination: true fault.

原因分析：

Cause analysis:

是由于大量機油進入氣缸，而又不能完全燃燒所致。拆下火花塞，即可發現嚴重的積炭現象。需檢查機油尺油面是否過高;氣缸與活塞間隙是否過大;活塞環是否裝反;進氣門導管是否磨損或密封圈是否損壞;氣缸墊是否燒蝕等，必要時應予以修復。

It is due to a large amount of oil into the cylinder, and can not completely burn. When the spark plug is removed, serious carbon deposit can be found. It is necessary to check whether the oil level of the oil dipstick is too high; whether the clearance between the cylinder and the piston is too large; whether the piston ring is installed reversely; whether the intake valve guide is worn or the sealing ring is damaged; whether the cylinder gasket is ablated, etc., and repair it if necessary.

2、排氣管冒黑煙：

2. Black smoke from exhaust pipe:

故障判定：真故障。

Fault determination: true fault.

原因分析：

Cause analysis:

表明混合氣過濃，燃燒不完全。主要原因是汽車發動機超負荷，氣缸壓力不足，發動機溫度過低，化油器調整不當，空氣濾芯堵塞，個別氣缸不工作及點火過遲等。排除時，應及時檢查阻風門是否完全打開，必要時進行檢修;熄火后從化油器口看主噴管，若有油注出或滴油，則浮子室油面過高，應調整到規定范圍，擰緊或更換主量孔;空氣濾清器堵塞，應清洗、疏通或更換。

It shows that the mixture is too rich and the combustion is incomplete. The main reasons are that the engine is overloaded, the cylinder pressure is insufficient, the engine temperature is too low, the carburetor is not adjusted properly, the air filter is blocked, some cylinders do not work and the ignition is too late. When removing, check whether the choke valve is fully opened in time, and carry out maintenance if necessary; after flameout, look at the main nozzle from the carburetor port, if there is oil injection or dripping, the oil level of the float chamber is too high, it should be adjusted to the specified range, and the main metering hole should be tightened or replaced; if the air filter is blocked, it should be cleaned, dredged or replaced.

3、車輛排氣管冒白煙，冷車時嚴重，熱車后就不冒白煙了：

3. White smoke is emitted from the exhaust pipe of the vehicle, which is serious when the vehicle is cold, and no white smoke is emitted after the vehicle is hot

故障判定：假故障。

Fault determination: false fault.

原因分析：

Cause analysis:

這是因為汽油中含有水分，而發動機過冷，濟南奔馳汽修廠認為此時進入氣缸的燃油未完全燃燒導致霧點或水蒸氣產生形成白煙。冬季或雨季當汽車初次發動時，常常可以看到排白煙。這不要緊，一旦發動機溫度升高，白煙就會消失。此狀況不必檢修。

This is because the gasoline contains water, and the engine is too cold. Jinan Benz automobile repair factory thinks that the fuel entering the cylinder is not completely burned at this time, resulting in fog or water vapor forming white smoke. In winter or rainy season, when the car starts for the first time, white smoke can often be seen. It doesn't matter. Once the engine temperature rises, the white smoke will disappear. This condition does not need to be repaired.