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  1. Thumping sound when braking

    Gen 5: 2015-2019
    Recently I noticed thumping sound from the trunk when braking at very low speed. This is a 2018 2.5 with 20k miles. The sound: It's like when you put a basketball/watermelon in your trunk and the sound it makes when it bumps into the trunk wall when the car moves. When: When the car moves at...