What does it mean when there are two creaking sounds when opening the door?

[DiMichael]

When a car door makes two abnormal sounds upon opening, it is due to damage to the door limiter, which can be replaced for free during the warranty period. Information about the door limiter is as follows: 1. Limiter: A safety device that protects the machine, also known as an overload limiter. 2. Function: It can limit the maximum opening angle of the door and keep the door in an open position. Additional information: 1. Rubber spring-type limiter: This type of limiter has a simple structure, low cost, requires no maintenance, and occupies little space. The downside is the high material requirements; if the chain strength is insufficient, the door may sag after some time, leading to abnormal sounds. Rubber spring-type limiters are mostly divided into two or three stages, with a length of about 60mm and a maximum opening angle below 70 degrees. 2. Torsion spring-type limiter: Commonly used in Europe, this type of limiter features low noise, long lifespan, and effective limiting, but it occupies more space, has a complex structure, and is difficult to repair. The maximum opening angle of a torsion spring-type limiter is between 60 and 65 degrees, with a maximum opening torque of 45 N/m and a maximum closing torque of 50 N/m.