Cooper S (R56) L4-1.6L Turbo (N14) (2009)
NOTE: Illustrations shows fuel filler pipe removed.
Release rubber seal from sheet metal flange.
Turn sleeve (1) through approx. 45° and pull out in direction of arrow.
Press retaining strap (1) inwards and lift out (see arrow).
Remove cover (2).
Pierce cover bowl at markings (3) with a small screwdriver.