Other Fuel System Pump problems of the 2013 BMW 550

After having made several replacements to parts (e. G. All three fuel pumps) to this vehicle over three, the vehicle now requires a new engine due to the failure of a rod ring. The root cause for this failure remains unidentified, however BMW is refusing to identify and/or accept accountability to address this failure which requires an engine replacement (>$13000). Any vehicle of this age (~7 years old) and mileage (~80,000 mi. ) should not require an engine replacement. Fortunately this issue occurred while traveling on urban roads at speeds less that 50 mph. Had this occurred at highway speeds, this failure could have been catastrophic for me, my loved ones and others. Additionally each failure (e. G. Of fuel pumps and rod ring) has caused me to increasingly question the safety resulting from BMW's vehicles using these components. At this point in the absence of a remedy from BMW I am left with no choice by to file this complaint as I have tried everything possible with BMW.