What is the reason for the buzzing sound in the Audi A6 power steering pump?

[LaTeagan]

If the power steering pump emits a buzzing sound, it is most likely due to internal friction caused by insufficient oil. It is necessary to check the fluid level in the reservoir. If the level is below the minimum mark, you need to replenish it until the fluid reaches the maximum mark (MAX). However, it is important to note that power steering fluid contains carcinogenic substances. If it comes into contact with the skin, it must be rinsed off immediately with clean water. Additionally, the fluid is somewhat corrosive, so if it splashes onto car paint or rubber components, it should be cleaned promptly. Consequences of insufficient power steering fluid: 1. The most obvious symptom of insufficient power steering fluid is difficulty in steering. The purpose of power steering fluid is to make the steering wheel lighter when the driver turns it. Without sufficient fluid, the driver's steering effort will significantly increase. 2. Prolonged lack of power steering fluid can also damage the power steering pump, as the pump relies on the fluid for its own lubrication. Therefore, it is advisable to regularly check the fluid level to avoid running low.