I had the valve replacement done about a week ago on my '06 3.0i Z4 and so far NO TICKING.

__________________

Actually: Driving 13th(E83) & 14th(E85) BMW's
Retired: 12 BMW's (1800, 2002, E30x3, E34, E36x2, E39x2, E46, E83)
Current: 7 BMW's in Family