My Citroën C4X Developed a Major Engine Failure Just After Warranty Expired

I am writing to report a serious warranty and engine failure issue involving my Citroën C4X. The vehicle’s first registration date is May 4, 2023. However, I later discovered that the warranty had been activated on April 7, 2023, nearly one month before the vehicle was officially registered.

Unfortunately, we did not notice this discrepancy at the time. When we later contacted dealerships regarding warranty coverage, we were informed that the warranty had already expired and that an extension was not possible. Only afterward did we realize that the warranty period had been started before the registration date. This has created a significant disadvantage for us and resulted in a situation where we feel our good faith as customers has been unfairly exploited.

Approximately one week after the warranty should have expired based on the registration date, the vehicle suffered a major engine failure. The problem first appeared on May 13, 2026. Since then, despite numerous attempts, I have been unable to obtain a proper solution.

On May 15, 2026, I personally brought the vehicle to an authorized service center. However, the vehicle was not inspected, and no diagnostic evaluation was even performed. Despite having completed all maintenance at authorized Citroën service centers, the vehicle became virtually unusable at only 56,000 kilometers. I later learned that this engine failure is reportedly a known and recurring issue affecting other vehicles as well.

Throughout this process, the attitude of both Citroën Turkey and the authorized service network has been dismissive, indifferent, and focused on delaying resolution rather than helping the customer. The fact that my vehicle was not examined, that no diagnosis was performed, and that I was repeatedly told that nothing could be done is completely unacceptable.

There are already numerous public complaints regarding similar issues, yet the company appears unwilling to acknowledge or address these recurring customer concerns. As a result, I feel both abandoned and unfairly treated as a customer who has followed all maintenance requirements and relied on the authorized service network.

Because of this situation, I am considering filing complaints with the Consumer Arbitration Committee and pursuing legal action. If necessary, I am also prepared to explore higher legal remedies. At the very least, I want other consumers to be aware of the difficulties I have experienced.

I request that the warranty start date be corrected to reflect the vehicle’s official registration date, that the warranty period be adjusted accordingly, and that the engine failure be fully investigated and repaired at no cost. I also expect Citroën to take my case seriously and demonstrate the responsibility and customer support that should be provided throughout both the warranty and service process.