First of all, electronic equipment is seriously damaged, and modern cars attach great importance to electronic equipment. However, after the car enters the water, the water will inevitably enter the electronic equipment. Electronic equipment has two biggest enemies, one is dust and the other is water. Moreover, the internal structure of the car is complex, and even if the car is exposed to the sun, it is difficult to solve the problems of humidity and water accumulation. Even if the water is dry, all the magazines in the water will remain, which is easy to cause problems such as short circuit. After all, the accumulated water in the urban area is very dirty, and it is full of all kinds of dust. Leaving it on the circuit board will really cause many problems.
Secondly, it is easy for the engine to get water, which leads to engine problems. As the core of the vehicle, the engine can be said that all the equipment on the vehicle relies on or serves the engine. But after the engine is flooded, the problem of rust will not be mentioned. If you are not sure whether the engine is flooded, try taking a taxi. Then the probability of engine scrapping is very high. Even if it is towed to the 4S repair shop, engine overhaul is inevitable. The overhauled engine has a lot of problems, and it needs to be changed again, because there must be water in the oil pipe.
Finally, the maintenance process is complicated and the cost performance is low after maintenance. The engine, electronic equipment and gearbox should be removed for overhaul. Moreover, the feeling of overall use after maintenance is not as good as that of a car without soaking water. Therefore, after the Rolls-Royce is soaked in water, all three parts have to be overhauled, which is really not necessarily worth the money of an engine.