Cooper Convertible (R52) L4-1.6L (W10) (2005)
Release camshaft retaining bolt (1) and hold camshaft gear with special tool 11 8 250 See: Tools and Equipment/11 8 250 Pin Wrench.
Unscrew plugs (2).
Unscrew retaining bolt for camshaft gear, then remove gear wheel and chain.
Remove camshaft gear from timing chain.
Caution!
Protect timing chain to prevent it from dropping into timing case.
Unscrew retaining bolts (1) of chain guides and remove both guides (2).