How often does the timing chain of Audi a6 change?

Usually, the timing chain works normally within 654.38+0.5 million kilometers, and it is basically checked when the car travels 200,000 kilometers. Get the reserve price for free. If the car is driving at high speed with full load for a long time, it should be inspected once every 5 years or 75,000 kilometers. If it is seriously worn or damaged, it should be replaced in time. Generally speaking, the reliability of timing chain is very high, and it still depends on external factors such as driving environment. According to the use conditions and environment, check it regularly and replace it if necessary.

Theoretically speaking, the life of the timing chain is longer and it can be maintenance-free for life. In actual use, the timing chain will also wear, especially when the car is fully loaded and driving at high speed for a long time.

Function of timing chain:

Timing chain is mainly used to drive the valve train of the engine, so that the intake valve and exhaust valve of the engine can be opened or closed at appropriate time, so the timing chain can ensure the normal intake and exhaust of the engine cylinder.

In the past, the timing system of automobiles generally used timing belts, but for all engines, if the timing belts jump or break, they will not work normally and even damage the whole engine.

Audi judges that the timing chain needs to be replaced: the engine produces abnormal noise. Abnormal engine noise is a symptom of timing chain failure, which will also cause the increase of automobile fuel consumption. Timing chain has high reliability. Theoretically, the timing chain can be maintenance-free for life, because it is normal for the timing chain to be used within 654.38+0.5 million kilometers. In actual use, the timing chain will be worn or lengthened. Generally, the lengthening of the timing chain will lead to problems such as car failure to start, power decline and serious exhaust emission.

Audi's timing chain is maintenance-free and generally does not need to be replaced again. Many original synchronous belts of automobile engine are gradually replaced by engine timing chain, and the driving mode of engine timing chain is reliable.

The difference between timing chain and timing belt is as follows:

1, the chain is maintenance-free for life, so the later benefit of this part of the manufacturer will also be reduced. In addition, the timing chain will have a certain impact on the engine power performance compared with the belt;

2. From the consumer's point of view, because the timing belt is mainly replaced in a preventive way, it is generally replaced when the service life specified by the manufacturer is not reached, and the service life is short;

3. Advantages and disadvantages of the structural timing system: the timing belt has low noise, low transmission resistance and low transmission inertia, which can improve the power and acceleration performance of the engine and is convenient to replace. But the disadvantages are easy aging, high failure rate and high use cost for car owners. Get the reserve price for free

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