The performance of a repaired power steering rack depends on the quality of the repair and the severity of the problem. In some cases, the repair may not fully restore the original performance of the rack, especially when the internal mechanical parts are already severely worn.

In the current automotive market, hydraulic power steering systems (HPS) and electronic hydraulic power steering systems (EHPS) are still widely used, and both systems rely on power steering pumps.

HPS racks are more common in large vehicles and some high-performance models that focus on driving experience. These types of vehicles have high requirements for the durability, reliability and steering feel of the steering system, and the HPS system has obvious advantages in this regard.

The power steering rack is connected to the steering gear and steering wheel, and is responsible for converting the driver's steering instructions into actual steering actions of the wheels. Traditional mechanical steering requires a lot of force, while the power steering makes steering easier.

For novices, one of the most important challenges is the lack of practical operating experience. Replacing the power steering rack and pinion is a delicate job, and any operational error can cause the entire system to operate abnormally.

When the power steering pump fails, the driver usually feels that the steering wheel becomes heavier, but there is no obvious jamming feeling. When the power steering rack fails, the driver may feel a change in the resistance to steering wheel turning, especially jamming at certain angles.

Because the manual steering system is usually designed to be simple, and in some models, the design of the wheel and steering system does not take into account too much power assistance, the manual steering rack needs to bear greater pressure.

The size of the leak is a key factor in determining the rate of leakage. If the leak is large, such as a completely broken seal or cracked high-pressure pipe, the power steering fluid may leak a large amount in a short period of time. In this case, the driver will quickly notice that the steering has become unusually heavy and the vehicle's power steering function is almost ineffective.

Here are some of the most common symptoms: 1. Steering wheel shakes or loosens 2. Steering is not sensitive 3. Abnormal noise 4. Steering wheel is difficult to return automatically 5. Steering accuracy decreases 6. Steering system leakage 7. Steering wheel vibration 8. Uneven tire wear

The cost of replacing a Mercedes-Benz steering rack varies depending on the model, part type, labor cost and other factors. For entry-level models such as the C-Class, the cost may be between $1,200 and $2,500, while for premium models such as the S-Class, the cost may be as high as $4,000 or even more.