Front Suspension problems of the 1999 Mercedes Benz E430

This is in regards to 1999 Mercedes Benz E430 concerning front spring perches. Date this incident occurred 9/22/2009. Failure to the passenger front spring perch resulting in the spring to dislocate. Fortunately, this did not occur at driving speed rather occurred in a parking lot. However, this is not the first incident unfortunately the second incident within 5 years. The first incident occurred while driving. The driver side front spring perch dislocated and the spring ejected onto the freeway and the front end dropped to the wheel. No injuries or casualties occurred. The driver side perch was repaired and a visual inspection was perform on the passenger side and no apparent damage was noted, however, now this incident happened. I believe this is a safety concern. I believe a 10 year old vehicle manufactured by a prestige automobile company should not fail in such circumstances.