Mazda's maintenance cost is not expensive. At 20,000 kilometers, the maintenance project is to replace the oil, mechanical filter, steam filter and air conditioning filter. Whether the air filter needs to be replaced depends on the usage. This maintenance air filter is dirty, and it can't be blown clean now, so it needs to be replaced. The material cost of more than 500 yuan plus 300 yuan's working hours is 878.33 yuan. For most people, buying a car is basically bought in a 4S shop, so the first thing that comes to mind in the follow-up service after buying a car is definitely a 4S shop. This is because when we buy a car, the service attitude of the general 4S shop is relatively good, and naturally it will be more reliable, so the follow-up maintenance will definitely choose 4S shop. In fact, there is another important factor that affects the direction of car maintenance, that is, whether it is within the warranty period. Many friends are worried that the maintenance cost of the garage is cheap, but there is something wrong with the car. What if the 4S shop doesn't guarantee it? In theory, after buying a car and going to a 4S shop to complete the free first warranty, you don't have to go to the 4S shop for maintenance, as long as you go to a large and reliable garage, you can also guarantee it. But the reality is that it is difficult for the garage outside to provide complete proof, which will inevitably lead to the phenomenon of buck passing. Even if you win in the end, the cost of delayed time cannot be recovered.