What causes the metallic rattling sound when starting the X-Trail?

[LaAlana]

The reasons for the metallic rattling sound when starting the X-Trail are as follows: Door rattling: If it's coming from the door, since the door structure is relatively simple, first check if it's because the screws are not tightened properly. Sunroof rattling: If the vehicle is equipped with a sunroof, check if the sunroof is making noise. Sunroof rattling is generally quite common, as in older vehicles, small stones or dust can accumulate in the sunroof tracks over time, leading to poor sealing and resulting in noise. This issue isn't actually a major problem; even luxury cars like BMW and Mercedes can experience sunroof rattling.