Engine Clicking And Tapping Noises Problems of BMW X3

We purchased a 2013 BMW X3 in December 2012. The vehicle has been dealer serviced from day one. In 2018, fairfax BMW replaced the timing chain at no cost when the vehicle had only 45k miles which is highly unusual. In early August I was driving on interstate 81 south travelling from virginia to arizona. The car began making a ticking sound which became progressively louder. I exited the busy highway and barely made it to BMW of roanoke, va. I was travelling the speed limit when the problem began, and was barely able to go 45 miles per hour when I exited. I soon learned that my particular engine (f-25/n20) has a major defect and will literally blow up while driving. BMW is aware of the problem, and has endangered my health and safety by refusing to correct the problem. A class action lawsuit has been filed in new jersey (chris williams, et. Al. V. BMW north America). The dealer in roanoke said the engine is unrepairable with only 51k miles on the odometer. One last observation in noticed is that prior to starting my trip I checked the engine oil level and it was almost a quart low which had never happened before. I filled the engine to it's recommended capacity and began my travel. There is a list of affected vehicles with engine defects, and my vehicle is on the list.

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Driving at normal speed. Notification appeared of drivetrain malfunction. I stopped the car on the side of the road and turned the engine off. Restarted the engine and the notification was off. Started driving again and notification came on low oil pressure. The engine started to make a loud ticking noise while I pulled off the road. Car was towed to my home. Contacted the dealer for service. They stated that it was likely a timing chain issue which they have extended the warranty to cover. My car has 88k miles. When I told them the mileage they told me it wasn't covered over 70k miles. They said that it sounded like the damage would likely ruin the engine and require possibly a new engine. Either way, it would be at least $1000 for the inspection and diagnosis. I have had regular service at the dealer and they never mentioned no checked for this potential problem while my vehicle was in for service when the mileage was under 70k.

Driving on highway braking to slowdown at a light as I was coming into town. Message came on that oil pressure was low and to call roadside assist. Moved off highway and cut engine on and of twice. Message cleared but decided to drive home. Message came on drivetrain malfunction drive moderately so I continued on for about 1. 5 miles at slow speed. A clicking sound could be heard. The car jumped into neutral so I coasted to a safe spot and tried to put car in drive unsuccessfully. Turned engine off and would not restart. Tow truck put on flatbed to mechanic who then ran a a scan. He said the engine is ruined and will need replacing. The dealer in san antonio, TX replaced the turbocharger twice with the last being in the fall of 2017. Nothing was mentioned that there was such a problem with this that an extended warranty had been given. Our car has 94,000 miles. We had just driven through houston in a storm. This could have cost us our lives if we had been stranded in the flooding highway blocking traffic let alone other lives.