As an auto mechanic with 15 years of experience, I have seen countless vehicles come in and out of the repair shop and encounter a variety of faults. However, among the many problems, there are a few so-called "faults" that are actually normal, or small things that can be solved with simple adjustments, without spending a lot of time and money to fix them. Now, I will reveal these five common "faults" that do not need to be fixed.
1.Slight engine noise: Slight noises made when the engine is running, such as a "buzz" sound when idling or a slight knocking sound when accelerating, are often normal, especially for older cars of a certain age. As long as these sounds are not loud, do not affect the normal driving of the vehicle, and are not accompanied by significant shaking or loss of power, there is no need to be overly nervous. However, if the noise is abnormally loud or accompanied by other abnormal manifestations, it is necessary to see a professional for examination.
2.Occasional flashing fault indicator: The fault indicator on the dashboard of a car occasionally turns on and then turns off automatically, often due to a transient error in the self-detection of the vehicle's electronic system or a brief fluctuation in the sensor. Unless the fault light is continuously lit, or flashes frequently, there is no need to rush to repair, just go to the 4S shop or professional maintenance point regularly for a comprehensive inspection.
3.Musty smell at the beginning of the air conditioner: When the air conditioner is turned on for the first time after a period of inactivity, the air blowing out has a musty smell, which is usually due to excessive humidity inside the air conditioning system, which breeds microorganisms. In this case, you only need to start the air conditioning system, turn on the external circulation and increase the wind speed, and let the air dry the evaporator to eliminate the musty smell. If the musty smell persists, consider cleaning the air conditioning system.
4.The "click" sound at the moment of vehicle starting: When the vehicle starts cold, sometimes a one-time "click" sound from the engine compartment is heard, which is mostly due to the thermal expansion and contraction of the internal parts of the engine under temperature changes, especially the valve train, pulley and other components. As long as the sound returns to normal and there are no other abnormalities in the engine, there is no need for special repairs.
5.Slight steering wheel swing: Some vehicles may experience slight steering wheel swing at high speeds, which is not necessarily a problem with the steering system, but is often caused by unbalanced tires, uneven tire wear, or aging suspension systems. Try wheel alignment and tyre balancing first, and if the problem persists, consider checking the suspension instead of assuming the steering fault in the first place.
Summary: As a complex machine, it is inevitable that various situations will occur, but as car owners, we should learn to distinguish which ones are really problems that need to be repaired, and which ones are just normal use phenomena or small defects that can be solved by simple treatment. This saves money on unnecessary repairs and avoids the potential damage to the vehicle itself caused by over-repairs. Of course, all this is premised on an understanding of the basics of the car, as well as a constant focus on the condition of the vehicle. For uncertain questions, it is recommended to consult a professional auto mechanic in time to ensure that the vehicle is always in the best condition.