(Oil filter + air filter + cabin filter)

Replacement seabet iocycle: half a year or one year

The replacement of the third filter is relatively frequent，Generally, the third filter needs to be replaced during engine oil maintenance，The oil filter must be replaced during every maintenance，The usual replacement cycle is 5000-10000 kilometers。The replacement cycle of air filter and cabin filter is about 1 year or 20,000 kilometers，But this replacement cycle is not fixed，If you drive in a dusty and poor air quality environment for a long time，Then the replacement cycle needs to be advanced as soon as possible。

Replacement cycle: 3-4 years

The battery is for the ignition system、Power supply for electronic equipment，When you feel that the brightness of the headlights is weakened or you have difficulty starting the vehicle，It means that the battery replacement cycle is not far away。Generally speaking，The service life of the battery is 3-4 years，If you use electronic devices in the car without starting the engine，The battery life will be greatly shortened。

Replacement cycle: 40,000 kilometers ago

The braking system is one of the most important vehicle safety features，Any time，Check the thickness of the brake pads regularly，Once below 3mm，Remember not to hesitate，Must be replaced in time。The first replacement cycle is usually before 40,000 kilometers，If you often brake suddenly when using your car，The choice of replacement should be based on the thickness of the brake pad。

Replacement cycle: 60,000-80,000km or 3-4 years

A car that has been driven for several years，Suddenly found that fuel consumption increased，Acceleration performance decrease，Then it is very likely that there is something wrong with the spark plug，This replacement cycle has nothing to do with the year and kilometers，It mainly depends on the condition of the car，While replacing the spark plug, you can also check whether there is carbon deposits in the engine。

Replacement cycle: 60,000-100,000 kilometers

The engine belt is a rubber part，And within the normal use cycle，Timing belt will produce aging loss，If the timing belt breaks，Very likely to cause serious damage to the engine。Therefore, manufacturers have strict replacement cycle requirements for timing belts，For specific cycles, please refer to the user manual of each model，Generally，The engine timing belt should be replaced after 60,000 to 100,000 kilometers。(This article is reproduced from: Understanding Cars)