Cooper Convertible (R57) L4-1.6L (N12) (2009)
Possible play in wheel center and wheel weight could cause imbalance.
This imbalance is reduced to a minimum by installing the somewhat heavier wheel-bolt lock in the top wheel-bolt position.
In this position - wheel stud lock at top, valve at bottom - tighten wheel studs hand-tight in diagonal sequence.
Lower car and tighten wheel bolts crosswise.
Tightening torque 36 10 1AZ See: Specifications.