Cadillac first introduced power steering in its production cars in 1952. At that time, power steering technology had been relatively mature, especially after Chrysler launched the first mass-produced car equipped with a hydraulic power steering system in 1951

The main function of the power steering pump is to provide hydraulic pressure and is the "heart" of the system. The power steering rack is the actuator, which converts hydraulic pressure into mechanical movement and is the "hands and feet" of the system. The pump provides power support for the rack, while the rack converts this power into actual steering effect.

Hydraulic power steering systems require oil because hydraulic oil is the primary medium of energy transfer. In this system, the pressure generated by the hydraulic pump needs to be transmitted through hydraulic oil.

Specifically, Honda first equipped its North American version of the Honda Accord with a hydraulic power steering system as standard in 1982, which was the time node when Honda first adopted power steering technology on a large scale.

Reasons for noise in the hydraulic power steering system: 1. Insufficient hydraulic oil or oil mixed with air 2. Power steering pump failure 3. Steering rack failure 4. Poor quality or deterioration of hydraulic oil 5. Loose pipes or joints 6. Excessive pressure caused by the steering wheel hitting the bottom

Due to the different viscosities and compositions of the transmission fluid, it may not provide the ideal lubrication required by the power steering system. This will cause increased friction inside the pump and pipes, and long-term use may accelerate wear and shorten the life of the pump.

Common faults of hydraulic power steering are: 1. Hydraulic oil leakage 2. Hydraulic pump failure 3. Steering power reduction or loss 4. Steering wheel vibration or abnormal noise 5. Steering wheel automatic return failure 6. Steering failure or loss of control

BMW's first model equipped with a power steering system was the BMW E3 launched in 1968, also known as the "BMW New Six" series. The E3 series is a model launched by BMW to enter the high-end luxury sedan market, aiming to compete with luxury cars such as the Mercedes-Benz S-Class.

From the late 1950s to the 1960s, more and more American automakers began to equip their models with power steering systems. During this period, power steering gradually evolved from an optional configuration for luxury models to a standard configuration for mid-to-high-end models.

If the steering rack leaks seriously, the owner may find obvious oil traces under the vehicle or near the steering rack. These oil traces are usually light yellow or amber in color and have a certain viscosity.