There is no clear end-of-life period for the vehicle, so that it can be operated as long as it is certified by the annual inspection, and, when it is old, it is essential for it to be tested. When the engine has some symptoms, it needs to be overhauled, otherwise there is a risk that it will not only fail to pass the test year after year, but will be ready for anchorage. Today, let's talk about the problems of overhauling the engine。
Any symptoms of the engine need a major overhaul? Three things are more common: low tank pressure, burning oil, and noise within engines. These three situations generally require major engine repairs. If the driver doesn't know the car, can he feel it? It can be felt, the car will be impervious with a low tatter, the glittering will be obvious, and the driving will be easily felt. The oil is blue smoke from the exhaust pipes and is rapidly reduced, with at least one refuelling of the oil for a maintenance cycle, which is also easy to detect. It is easier to know when the engine is ringing, which is usually caused by abnormal wear and tear of the tugs, turbos, rotors and cam axes. The sound is more visible, both inside and outside the vehicle。
Do you want to go to 4s or outside? In practice, we can see that there are not many major engines in 4s, and most of them go to the outside maintenance shop. One of the most important reasons is that the price of 4s is too high, and that the cost of major repairs is less than 10,000 and 230,000. It is important that working hours account for a significant portion of the cost, or one third or more of the total cost. However, although the costs are high, the spare parts are original, are more compatible with the original spare parts and have better quality and reliability, which cannot be matched by outside repair shops。
With regard to technology, there is no clear hierarchy, depending on the level of individual maintenance technicians. There is also technology in 4s and outside repair shops. In general, however, the 4s would be more elaborate, they would be well equipped, especially with specialized tools, some parts of the assembly process, as well as better overall detail, and the car would look better. The outside repair shop requirements are not stringent and, although there are no major problems, they are not sufficiently detailed in some of the details, sometimes only from the appearance of the engine, to show whether it was repaired at the 4s shop or at the workshop。
What kind of car is worth overhauling? The engine is not well maintained, few kilometres of engine is broken, or the wrong operation resulted in early engine damage, while other areas, such as the undercarriage with a speedbox, are well-equipped, which is the most valuable repair and, when completed, the performance of the vehicle. If the car wanted to drive for a few more years, it would be better to go to the 4s store for major repairs, mainly with their original plant parts. How to avoid spending more? The focus is on working hours, which are standard hours for major maintenance engines and are the same for all stores, but some are not just for major repairs, but are accompanied by other items, many of which are covered by major repairs, amounting to double fees. In the case of accessories, there is no need to change, particularly for those capable of cleaning, repairing and processing, especially those that are more expensive, such as the cavity axes, and no need to replace them without visible wear and tear。
