The abnormal sound of the second row of seats was checked and found that it should be a common problem. Emergency treatment methods are attached.

  5
 September 6, 2024
When the car was about 80,000 kilometers, abnormal noises were found in the rear seats.
The symptom of abnormal sound is that when crossing a bumpy road, there will be a “thud” sound similar to a metal collision behind.
But one situation is that when adults sit in the back row, sometimes the abnormal sound disappears.
Initially, it was suspected that the seat bracket had a loose screw. I checked it myself and found that there were no loose parts in the bracket.
I originally thought that in order to avoid various demolitions, I would leave it alone.
However, it was recently discovered that many riders reported abnormal noises in the back row, and the symptoms also had common characteristics, so a new round of investigation was started.
Ask an adult to sit in the back row and make 6/4 ratio sides respectively. It is found that the abnormal sound comes from the 6 side and disappears when it is close to the backrest.
So I started work and hammered the backrest with my fist. I could hear the abnormal sound and found that it was the sound coming from the backrest angle adjustment device in the picture below.

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