Fiat Refuses Warranty for My Fiorino Despite Regular Maintenance and No Warning

In January 2024, our company purchased a brand-new Fiat Fiorino 1.3 Multijet with license plate 34 HZG 1** from Fiat's authorized dealer in Küçükyalı. The vehicle has been used in accordance with proper operating conditions, with all maintenance carried out at authorized Fiat service centers. However, on April 14, 2025, while traveling from Istanbul to Tekirdağ at normal cruising speed, the vehicle showed an engine fault light at 64,200 km. Since the vehicle is under warranty, we took it to the nearest authorized service center, but due to their workload, they could not accept the vehicle immediately. Only the next day were we able to find availability at the Fiat authorized service in Avcılar, Istanbul. Despite all maintenance being performed on time, the service team stated that the fault was caused by soot buildup in the exhaust over time and that the vehicle cleans it automatically. However, they also stated that we had turned off the vehicle 11 times during this automatic cleaning (regeneration) process, and for that reason, the fault was not covered under warranty. They further mentioned that during regeneration, no warning or fault message appears on the dashboard—only a mild exhaust smell or higher engine revs might be noticed. We were never informed about the importance of this process, neither when receiving the vehicle nor during regular maintenance. Additionally, the service confirmed that this exhaust cleaning and inspection was not performed during routine maintenance. When we asked for information on when the engine was turned off during the regeneration process, the company could not provide detailed data and only shared a screenshot, which showed that regeneration had been successfully completed 147 times. Despite this, neither the Fiat service nor Fiat headquarters has taken responsibility or fulfilled their warranty obligations. Currently, our vehicle remains at the service center, and we are requesting that the repair be carried out under warranty and that the inconvenience we’ve experienced during this process be addressed. Furthermore, the company has yet to provide any clear information about the repair costs.