NHTSA Complaint #11717277 — 2016 LAND ROVER RANGE ROVER

I am reporting a catastrophic engine failure involving a 2016 Land Rover Range Rover Supercharged 5.0L (VIN: [XXX] ) with approximately 88,000 miles. The vehicle experienced sudden engine failure due to a timing chain malfunction. Timing chain failure in this engine platform can result in immediate engine stall and total loss of propulsion without warning. A sudden engine stall while driving presents a serious safety risk, including loss of power steering assist, reduced braking performance, and increased risk of collision. The 5.0L AJ133 engine used in 2013–2017 Range Rover and Range Rover Sport vehicles has a documented pattern of premature timing chain and timing chain tensioner failures. Numerous owner reports indicate similar failures occurring before expected service life. In my case, the timing chain failure caused catastrophic internal engine damage requiring full engine replacement. The failure occurred despite proper maintenance and without prior warning indicators sufficient to prevent breakdown. This issue represents a potential safety defect because sudden engine failure can occur while the vehicle is in motion, creating hazardous driving conditions. I am requesting that NHTSA review this issue for potential investigation into premature timing chain failure in 2013–2017 Land Rover Range Rover 5.0L Supercharged vehicles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)