Vehicle Shudder problems of the 2006 BMW 325

Car only has 63,000 miles. The aluminum bolts for the valve cover and the head bolts sheared off while driving. Stopped at a red light and car starts to shake, check engine sign lights, oil sign lights, once I gave it gas. Oil is leaking from car. Car is towed and mechanic shows me damage. Broken aluminum bolts fell inside of engine. Bolt is wedged between timing chain and gear. The engine is destroyed. Known defect for 2006 models, but BMW north America will not cover damage. Have called BMW north America three times now. BMW switched bolt type in following years. Others reporting same problem. Safety hazard. What if I was on a busy highway when my car stopped? car will never be the same. BMW needs to admit to their mistake and cover the damages. A recall should be put in place for the bolts. Just ridiculous that a company known for quality will do this to their customers. I hope the dot takes it upon themselves to hold BMW accountable. Others with the same problem, please email me at [xxx]. Looking for a potential resolution. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).