just wanted to know if anyone else has this loud ticking noise, usually after a cold startup and sometimes lasts for several miles. my z4 is a 06 with only 9000 miles, i took it to the dealer any was informed they were unable to duplicate. it sure is embarrassing to pull up to the drive up window in my 50k vehicle that sounds like a 88 ford thunderbird. the only other issue, since i'm venting is that after i had problems with the car not starting the dealer sold me a trickle charger that i have to keep plugged in every night.(i didn't realize i had bought an electric car that uses gasoline. other than that it is one fantastic ride.