In April 2022, the timing cover seal on my 2016 Lexus ES 350 was replaced due to a leak. This was completed under warranty at approximately 84,785 miles. In February 2025, less than three years and roughly 56,000 miles later, I was informed by the same Lexus dealership during a routine service that the exact same issue - leaking from the timing cover - had reoccurred. There were no warning lights, engine performance issues, or visible signs of oil loss leading up to this. During my prior service appointment in December...
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2024, I was told the car was in excellent condition with no issues. I service my vehicle at every Lexus-recommended interval and maintain a full history of service records. The dealership has confirmed the new timing cover leak but has not been able to explain why the seal failed again. This is a major engine component that should not require a second repair within such a short time frame. I am now being asked to pay a significant portion of a nearly $5,000 repair despite a prior warranty fix, and despite having done nothing to cause or accelerate the failure. Lexus offered a partial goodwill credit, but no root cause has been identified. I am concerned that either poor workmanship or substandard parts contributed to the premature failure, and that it may happen again. Given the cost, critical nature of the part, and the lack of answers, this feels like more than just an isolated incident. I have complete service documentation and before-and-after video footage of the most recent repair. The vehicle is currently in my possession and available for inspection upon request. I purchased a Lexus because I believed in the brand's commitment to long-term reliability and quality. That confidence has been shaken. I respectfully ask NHTSA to investigate this recurring failure and assess whether this is part of a larger issue.