Repairing power steering system leaks, especially when it involves steering rack leaks, usually requires the disassembly of a large number of automotive parts, including suspension systems, exhaust systems, and certain engine parts.

From the perspective of manufacturing cost, the hydraulic power steering rack of a B-class car may indeed be more expensive than that of an A-class car, mainly because of its complex design, better materials, and more sophisticated manufacturing process.

Natural wear and aging are one of the most common reasons for replacing a power steering rack and pinion set. The rack and pinion will constantly rub against each other during long-term use, and although they are usually made of high-strength materials, they will inevitably wear out.

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.

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.

The answer is no. The manual steering rack does not require a power steering pump, which is one of the fundamental differences between it and the power steering system. The power steering pump is a key component that provides hydraulic assistance to the hydraulic power steering system.

A faulty hydraulic power steering rack may make noises such as: 1. Whining Noise 2. Clunking or Knocking Noise 3. Squealing or Screeching Noise 4. Hissing Noise 5. Grinding Noise

If the leakage is caused by wear of the rack or pinion, then the difficulty of repair will be relatively large. The worn rack surface may cause the seal to fail to seal effectively, which in turn causes hydraulic oil leakage.

From Toyota and Ford to BMW and Mercedes-Benz, these brands still choose hydraulic steering systems on some models because of their excellent reliability, excellent driving feedback and low manufacturing and maintenance costs.