52 15 403 Remove or install/replace cover left or right thigh support from/on the front seat (sport/manual)
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Unlock and move thigh support (1) as far forward as possible.
Lift out welt of seat cover (2) from thigh support.
Lever out cover welt in marked area (1).
Detach trim wire in marked area (2) from thigh support.
Remove cover with upholstery.
Pull cover (1) off upholstery (2).