How to properly maintain and repair automatic transmission

While automatic transmission models are becoming more and more popular, the maintenance frequency of automatic transmissions is also increasing. Industry experts pointed out that most car owners do not know how to properly maintain and repair automatic transmissions. It is often not until the need for maintenance that it turns out that its maintenance cost is higher than repairing the engine.

Misunderstanding 1: No need to change oil

Many car owners have not developed the awareness of changing automatic transmission oil. The replacement of inferior oil and not changing the oil according to the model will also cause the “short life” of the automatic transmission.

Misunderstanding 2: Change only when the quality changes

The replacement cycle of automatic transmission oil is based on the number of kilometers traveled or the time of use. If the vehicle user manual does not indicate it, it will be replaced according to the mileage of 60,000-80,000 kilometers.

Misunderstanding 3: Two oil change methods

The “hand change” operation is convenient and time-consuming. The disadvantage is that the oil change is not thorough, and only one-fourth to one-third of the old oil can be drained, which is about 4 liters.

The whole process of “machine replacement” takes about 1 hour and requires about 12 liters of oil. The advantage of this oil change method is that the oil change is more thorough and can drain more than 85% of the old oil.

It is worth noting that both oil changes must be performed when the engine is started. When replacing the automatic transmission fluid, it must be in the state of a hot car during operation. You should drive for more than 20 minutes before the replacement. Do not change the oil when the car is cold. When changing the oil, start the engine and switch the gears from P gear to N, D, L1, L2 and other gears, and then start changing the oil.

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