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Only for G05/F95:
Check
Check the clips (2) for damage and replace if necessary.
Observe the sealing ring, it must not be missing or damaged.
Check detents (1) for damage.
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Result
» The detents (1) of the wheel arch trim are damaged.
Measure
Replace wheel arch trim.
Install wheel arch trim (1) and lock on the clips (3) and the detentes (2).