What causes the sunroof noise in the 2019 Audi A4L?

[DeAngela]

2019 Audi A4L produces noise when closing the sunroof, which is caused by insufficient lubrication of mechanical components, leading to difficulty in the movement of sliders within the tracks and resulting in noise. Here is some information about Audi: 1. Introduction: Audi is a renowned automobile developer and manufacturer, with its logo consisting of four interlocking rings. 2. History: It can be seen that Audi's history is divided into two parts by World War II. The first part is the Auto Union before the war, and the second part is the development of Audi after the war. 3. Brand Culture: Learning is the driving force behind the improvement of personnel quality. Strong learning ability can adapt to various environmental changes and maintain vigorous vitality in the fierce market competition.