Nissan Qashqai Spare Part Delayed For Months After 20-Day Supply Promise

I am the owner of a 2023 model Nissan Qashqai e-POWER Platinum Premium with license plate 34 GPH 6**. Due to an air conditioning system malfunction, the air conditioning pipe with part code 924806UM0D was ordered on 14 June 2026 through the Kemal Tepretoğulları Istanbul Nissan Authorized Service in Kadıköy; however, this part has still not been supplied and my vehicle remains unrepaired. At the beginning of the process, I was informed that the estimated supply time for the part would be 20 working days and I was offered a replacement vehicle. As I found this period reasonable and expected my vehicle to be repaired within this timeframe, I initially declined the replacement vehicle offer. However, the part could not be supplied within 20 working days and no definite delivery date was given. As the process dragged on, I requested a replacement vehicle and a replacement vehicle was allocated to me on 6 August 2026. I have no complaints regarding the support provided by the authorized service with respect to the replacement vehicle. Despite this, the part ordered on 14 June 2026 has still not been supplied, the repair of my vehicle has not been completed and no concrete timetable has been shared regarding when the part will arrive. I do not find it acceptable from an after-sales service perspective that a spare part required to repair a 2023 model vehicle officially sold in Turkey cannot be supplied for months. Although the replacement vehicle reduces my daily transportation problem, it does not resolve the issue that my own vehicle has been unable to be repaired for a long time. In this context, I request that the reason why the part has still not been supplied be examined, that the spare parts supply and after-sales service obligations of the manufacturer/importer be evaluated in light of the fact that the initially stated 20 working day period has been significantly exceeded, and that the part be procured urgently so that my vehicle can be repaired. If this is not possible, I request that a definite supply and repair schedule and a concrete solution be presented and that I be informed in writing.