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The biggest advantage of the hydraulic steering system is that it significantly reduces the driver's steering load. In a mechanical steering system, the driver needs to apply a large force to turn the steering wheel, especially when driving at low speed or parking, this force requirement will be more obvious.

In summary, the most efficient steering system should be the electric power steering system (EPS). This is because it performs well in energy efficiency, response speed and driving experience.

Whether it is a hydraulic power steering system or an electric power steering system, wear of mechanical parts is inevitable. This type of wear usually starts to show up around 100,000 miles, but it also depends on driving habits and road conditions.

The rack and pinion is one of the most expensive parts in the power steering system. The cost of replacing this part can be as high as $1,000 or more, especially for high-end models. The high cost is mainly due to the high price of the part itself and the complicated installation process.

Manual steering rack has a simple structure and low cost, but requires the driver to exert greater operating force; while hydraulic steering rack greatly reduces the driver's operating burden through the hydraulic power assist system, but the maintenance requirements are relatively complex and the control feel is slightly reduced.

A rack and pinion steering system is a mechanical steering system that uses the interaction of a rack and pinion to convert the rotational motion of the steering wheel into lateral movement of the wheels. This relatively simple design is very efficient and has been widely used in many vehicles, including cars, SUVs and light trucks.

The repair cost of hydraulic steering system is generally higher, especially when it comes to repairing hydraulic pumps, hydraulic cylinders or steering valves. Because hydraulic systems rely on multiple mechanical and hydraulic components, the cost of repairing and replacing these components can increase significantly.

Mercedes-Benz offers electric power steering in many of its models. For example, Mercedes-Benz's C-Class, E-Class and S-Class models have all adopted electric power steering technology.

There may be a variety of reasons why the hydraulic steering rack is not working. These reasons involve multiple components of the system, from the hydraulic pump, the oil pipe, to the hydraulic oil itself, which can be the source of the problem.

When the electric power steering system fails, the vehicle may experience the following situations: steering becomes difficult, steering response is delayed, the vehicle cannot maintain a straight line, the driver warning system is activated, and emergency control capabilities are reduced.